FERROGRATE
ABOUT US
Ferrotech...
Our Strength... Our Team
The Industries... We Serve
The Products... We Supply
Our Presence
Leveraging
of drawings, Fabrication and supply of Electro forged and manually welded Steel / FRP Gratings.
Its in house engineering expertise, our service portfolio includes the design and detailing
Established in the year 2002, Ferrotech Intl. is recognised as one of the well reputed and leading
manufacturer and exporter of Floor Gratings, Stair Treads, Safety Handrails and Access Engineering
Products.
With the strength of modern manufacturing facilities, a strong team of qualified, experienced
engineers and a highly motivated skilled workforce, Ferrotech has established a reputation for
managing projects of all sizes, supplying quality products on time, every time.
Oil and Gas Projects, Power and Desalination Projects, Airports, Waste water treatment Plants,
Shipbuilding and repair works, Petro chemical projects, Pharmaceutical industries, Cement and
Sugar industries, Infra structure projects etc.,
F Electro Forged Steel Gratings
F Manual Welded Steel Gratings
F Press locked Steel Gratings
F
F Stainless Steel Gratings
F Ductile iron Gratings
Aluminium Gratings F
F Stair Treads / Grating Clips
F Steel / FRP Handrails
FRP / GRP Gratings
FERROTECH INTERNATIONAL FZE - UAE
DUBAI ENTERPRISES MODERN TRADING - OMAN
FERROTECH STRUCTURALS INDIA PVT LTD - INDIA
1 www.ferrograte.com
Electroforged Grating
A steel grid formed from load bearing
bars and cross bars through resistance
welding
Span Width
Direction of the load bearing bars Direction of the cross bars.
Plain load bearing bar
Flat bar with plain top surface
Serrated load bearing bar
Flat bar with serrated top surface.
Pitch
The Centre to centre distance
between load bearing bars or cross bars.
Binding bar
Flat bar welded to the edge of
grating panels
Grating gross area
Total area of gratings including
cut-out areas.
Grating net area
Total area of gratings excluding
cut-out areas.
GRATING - TERMINOLOGY
www.ferrograte.com 2
GRATING - TERMINOLOGY
Cut -out
Area of grating cut out for pipes and
columns to pass through.
Straight shaping
Cut-out with straight edges.
Curved shaping
Cut-out with curved edges.
Toe Plate / Kick Plate
Larger size flat bar welded to the edge of
grating panels for safety purposes.
Curb Angle
A support fixed to concrete or steelwork
to support gratings.
Erection Clearance
The distance from a grating panel to an
adjacent panel or structure.
Stair Tread
A grating with end plates and anti-slip nosing for use in stairways.
End Plates
Plates fixed to both ends of Stair tread for fixing to stringers
Anti-Slip Nosings
Pyramid type or chequered type anti
slip nosings welded to stair tread or
gratings to prevent slipping
3 www.ferrograte.com
Electro Forged Steel Grating
ELECTRO FORGED GRATINGS
Load bearing bars and the twisted cross bars are
pressed and welded together by electric resistance
welding process with 2500kvA current. Simultaneously
1000 kN Hydraulic pressure will be applied to forge
these together to form open grid flooring.
Gratings are manufacture as per BS4592 part one
1987 standards. Note : Add 2.99 kg/m2 to approx. finished weight for cross bars @ 50mm centresAdd 0.56 kg/m2 to approx. finished weight to get weight with fixing clips
GRATING with load bearing bars @ 41 mmcentres Cross bars @ 100 or 50 mm centres
LOADING CONSIDEREDa =b =
c =
3.0
5.0
7.5
2kN/m
2kN/m
2kN/m
NOTE: For 3 mm load bars subtract 2 mm from widthswidth dimensions can vary due to manufacturing process
S.C.F is the serrated conversion factor by which the safe loads and deflections must be multiplied to obtain those for the equivalent overall load bearing bar depth with serrated top surface.
NOMINAL O/A DIMENSION OF BARS(in mm)
No. of Bars
5 mm Load Bars
4
128
5
169
6
210
7
251
8
292
10
374
11
415
12
456
13
497
14
538 579 620 661 702
No. of Bars
5 mm Load Bars
19
743
20
784
21
825
22
866
23
907
9
333
24
948
25
989
Standard width
41 centres
100 centres 50 centres
Max clear spanfor pedestrian
Load (mm)
‘D’(mm)
BearingBar
(mm)
MAXIMUM UNIFORMLY DISTRIBUTED LOAD IN kN/m2 AND MAXIMUM DEFLECTION IN mm@ INDIVIDUAL CLEAR SPANS SHOWN IN mm.
UNITS 300 450 600 750 900 1000 1200 1350 1500 1650 1800 1950 2000
abc
abc
221419311687
244721541928
10.009.668.44
10.0010.00
9.64
10.00
35 x 5
40 x 5
2kN/m
D (mm)2
kN/m
D (mm)
184.31
1.05
240.74
1.05
103.68
1.86
135.41
1.86
66.35
2.91
86.67
2.91
46.08
4.20
60.18
4.20
36.03
5.00
48.75
5.00
20.85
6.00
31.12
6.00
14.64
6.75
21.86
6.75
10.67
7.50
15.93
7.50
8.02
8.25
11.97
8.25
6.18
9.00
9.22
9.00
4.86
9.75
7.25
9.75
10.00
6.72
10.00
4.50
Approx.Fin. Wt
2kg/m
SCF
U.D.L. D
41.88
47.43
0.89
0.90
1.05
1.05
abc
289325462301
10.0010.00 50 x 5
2kN/m
D (mm)
376.15
0.73
211.59
1.31
135.41
2.04
94.04
2.94
76.17
3.63
52.90
5.22
41.79
6.61
31.12
7.50
23.38
8.25
18.01
9.00
14.17
9.75 10.00
13.130.92 1.03 58.54
abc
330329072627
10.0010.0010.00
60 x 5
2kN/m
D (mm)
610.00
0.70
325.00
1.17
200.00
1.80
150.00
2.75
125.00
3.50
86.00
5.00
65.00
6.00
59.50
7.00
39.80
8.25
30.70
9.00
24.10
9.75 10.00
22.350.92 1.03 70.39
abc
abc
abc
165613961220
193116391423
215418621626
8.286.986.10
9.668.157.12
10.009.318.13
30 x 3
35 x 3
40 x 3
2kN/mD (mm)
2kN/m
2kN/m
D (mm)
D (mm) 1.05 1.86 2.91 4.20 5.00 6.00 6.75 7.50 8.25 9.00 9.75 10.00
81.25
110.59
143.00
0.92
1.2245.70
62.21
81.25
1.63
2.1829.25
39.81
52.00
2.55
3.4018.67
27.65
36.11
3.67
4.5013.61
21.62
29.25
4.53
5.007.88
12.51
18.67
6.00
6.005.53
8.79
13.11
6.75
6.754.03
6.40
9.56
7.50
7.503.03
4.81
7.18
8.25
8.252.33
3.71
5.53
9.00
9.001.84
2.92
4.35
9.75
9.751.70
10.00
2.70
4.03
10.00
22.99
26.32
29.66
0.87
0.89
0.90
1.06
1.05
1.05
abc
138011641017
6.905.825.08
25 x 32
kN/m
D (mm)
56.42
1.47
31.74
2.61
18.67
3.75
10.81
4.50
7.88
5.00
4.56
6.00
3.20
6.75
2.33
7.50
1.75
8.25
1.35
9.00
1.06
9.75
0.98
10.0019.000.85 1.08
abc
163613801205
8.186.906.03
25 x 52
kN/m
D (mm)
94.04
1.47
52.90
2.61
31.12
3.75
18.01
4.50
13.13
5.00
7.60
6.00
5.34
6.75
3.89
7.50
2.92
8.25
2.25
9.00
1.77
9.75
1.64
10.0030.770.85 1.08
abc
230520291700
10.0010.007.40
40 x 42
kN/m
D (mm)
190.00
0.92
106.50
1.63
68.30
2.55
47.40
3.67
38.40
4.53
24.55
6.00
17.22
6.75
2.56
7.50
9.43
8.25
7.27
9.00
5.71
9.75
5.30
10.0038.940.90 1.05
abc
196316561446
9.818.287.23
30 x 5
2kN/m
D (mm)
135.41
1.22
76.17
2.18
48.75
3.40
31.12
4.50
22.69
5.00
13.13
6.00
9.22
6.75
6.72
7.50
5.05
8.25
3.89
9.00
3.06
9.75 10.00
2.8436.320.87 1.06
abc
206217501500
10.008.657.00
32 x 5
2kN/m
D (mm)
414.71
0.47
541.66
0.41
846.34
0.33
1330.00
0.30
0.47
182.81
248.82
325.00
0.41
0.54
126.95
0.65
211.59
0.65
429.00
0.41
304.68
0.54
335.00
0.50
146.00
1.10
84.00
2.01
55.00
3.21
34.70
4.20
27.15
5.00
15.70
6.00
11.02
6.75
8.04
7.50
6.04
8.25
4.65
9.00
3.66
9.75 10.00
3.3938.940.89 1.05
SAFE WORKING LOADS & DEFLECTION TABLES FOR 41 mm pitch
www.ferrograte.com 4
15 16 17 18
GRATING with load bearing bars @ 30 mmcentres Cross bars @ 100 or 50 mm centres
Note : Add 2:99 kg/m2 approx. finished weight forcross bars @ 50 mm centres
SAFE WORKING LOADS & DEFLECTION TABLES FOR 30 mm pitch
Safe Uniformly distributed loads (U.D.L.) in kilonewtons per square metre onsimply supported panels with deflections (D) in mm. Based on a maximumpermissible stress of 180 N/mm2 which allows for a safety factor of 1.6.
Note: For pedestrain traffic there are three loading categories which are (a)light duty. (b) normal duty and © heavy duty. These categories are describedas (a) access limited to one person only, (b) regular two way trafficand © high density traffic, Bs4592, part one 1987.
30 centres
100 centres 50 centres
Standard width
NOMINAL O/A DIMENSION OF BARS(in mm)
No. of Bars
5 mm Load Bars
4
95
5
125
6
155
7
185
8
215
9
245
10
275
11
305
12
335
13
365
14
395
15
425
16
455
17
485
18
515
No. of Bars
5 mm Load Bars
20
575
21
605
22
635
23
665
24
695
25
725
26
NOTE:
*For 3 mm load bars subtract 2 mm from widths
*width dimensions can vary due to manufacturing process
*In addition to 30 and 41 mm pitch we also manufacture the gratings with 33 mm c/c, 35 mm c/c, 40 mm c/c and 60 mm c/c
755
19
545
27
785
28
815
29
845
30
875
31
905
32
935
33
965
34
995
S.C.F is the serrated conversion factor by which the safe loads and deflections must be multiplied to obtain those for the equivalent overall load bearing bar depth with serrated top surface.
Electro Forged Steel Grating
LOADING CONSIDEREDa =b =
c =
3.0
5.0
7.5
2kN/m
2kN/m
2kN/m
10.0010.009.33
10.0010.0010.00
35 x 5
40 x 5
2kN/m
D (mm)
2kN/m
D (mm)
0.89 1.05 54.82
0.90 1.05 62.23
Max clear spanfor pedestrian
Load (mm)
‘D’(mm)
BearingBar
(mm)
MAXIMUM UNIFORMLY DISTRIBUTED LOAD IN kN/m2 AND MAXIMUM DEFLECTION IN mm@ INDIVIDUAL CLEAR SPANS SHOWN IN mm.
abcabc
238721011866
263923222098
10.0010.0010.00
50 x 5
2kN/m
D (mm)0.92 1.03 77.04
abc
311927452481
10.0010.0010.00
60 x 5
2kN/m
D (mm)0.92 1.03 92.86
abc
356731402837
SCF
U.D.L D
Approx.Fin. Wt
2kg/mUNITS 300 450 600 750 900 1000 1200 1350 1500 1650 1800 1950 2000
9.017.87
10.0010.00
8.99
35 x 3
40 x 3
2kN/m
D (mm)
2kN/m
D (mm)
0.89 1.05 34.09
0.90 1.05 38.53
abcabc
210118011574
232220441799
10.00
6.43 25 x 3
30 x 3
2kN/m
D (mm)
2kN/mD (mm)
0.85 1.08 25.21
0.87 1.06 29.65
abcabc
152612871124183115441349
7.63
5.629.157.726.74
10.0010.00
9.41
40 x 42
kN/m
D (mm)0.90 1.05 50.92
abc
249021911950
9.047.636.66
25 x 52
kN/mD (mm)
0.85 1.08 40.02
abc
180915261333
10.009.158.00
30 x 52
kN/m
D (mm)0.87 1.06 47.42
abc
212718311599
10.008.848.50
32 x 52
kN/m
D (mm)0.89 1.05 50.92
560.78
0.47
0.41
732.44
1144.44
0.33
1800.00
0.30
367.47
0.47
439.47
0.41
0.65
247.20
0.54
171.67
583.00
0.41
286.11
0.65
412.00
0.54
455.00
0.50
249.23
1.05
0.92
325.53
508.64
0.73
830.00
0.70
149.54
1.05
195.32
0.92
1.47
109.87
1.22
76.30
259.00
0.92
127.16
1.47
183.11
1.22
198.00
1.10
140.19
1.86
1.63
183.11
286.11
1.31
439.00
1.17
84.12
1.86
109.87
1.63
2.61
61.80
2.18
42.92
145.00
1.63
71.53
2.61
103.00
2.18
114.50
2.01
89.72
2.91
2.55
117.19
183.11
2.04
277.00
1.80
53.83
2.91
70.31
2.55
3.75
39.55
3.40
25.25
92.70
2.55
42.08
3.75
65.92
3.40
75.00
3.21
62.31
4.20
3.67
81.38
127.16
2.94
204.00
2.75
48.83
37.39
4.20
3.67
4.50
25.25
4.50
14.61
64.50
3.67
24.35
4.50
42.08
4.50
47.20
4.20
48.72
5.00
4.53
65.92
103.00
3.63
170.15
3.50
29.23
5.00
39.55
4.53
18.41
5.00
5.00
10.65
52.20
4.53
17.75
5.00
30.68
5.00
37.00
5.00
28.19
6.00
6.00
42.08
71.53
5.22
117.30
5.00
16.92
6.00
25.25
6.00
6.00
10.65
6.00
6.16
33.34
6.00
10.27
6.00
17.75
6.00
21.35
6.00
19.80
6.75
6.7529.56
56.52
6.61
87.90
6.00
11.88
6.75
17.73
6.75
6.75
7.48
6.75
4.33
23.40
6.75
7.22
6.75
12.47
6.75
14.99
6.75
14.43
7.50
7.5021.55
42.08
7.50
67.30
7.00
8.66
12.93
7.50
7.50
7.50
5.45
7.50
3.16
17.10
7.50
5.26
7.50
9.09
7.50
10.95
7.50
10.84
8.25
8.2516.19
31.62
8.25
54.10
8.25
6.51
8.25
9.71
8.25
8.25
4.10
8.25
2.37
12.82
8.25
3.95
8.25
6.83
8.25
8.21
8.25
9.00
9.00
8.35
12.47
24.35
9.00
41.70
9.00
9.00
9.00
5.01
7.48
9.00
3.16
9.00
1.83
9.00
9.88
9.00
3.04
9.00
5.26
9.00
6.35
9.75
9.75
6.57
9.81
19.15
9.75
32.77
9.75
9.75
9.75
3.94
5.88
9.75
9.75
2.48
1.44
9.75
7.77
9.75
2.39
9.75
4.14
9.75
4.97
10.00
6.09
10.009.09
17.75
10.00
30.38
10.00
10.00
3.65
10.00
5.45
10.00
1.33
10.00
2.30
10.00
7.21
10.00
2.22
10.00
3.83
10.00
4.61abc
222719001700
5 www.ferrograte.com
Heavy duty gratings are press lockedgratings. The bearing bars and the crossbars are inter-locked with one anotherand then processed at a pressure of12,000 kN.
Due to their high stability and safety,heavy duty gratings are used where largesupport widths and high wheel loads arerequired.
Heavy duty gratings can be also pro-duced in stainless-steel
* Support width =clearance between the supports.
Point load in kN
Vehicle access: trucks up to 3tonnes in overall weight.
Vehicle access: trucks up to 9tonnes in overall weight.
Vehicle access: trucks up to30 tonnes in overall weight.
Vehicle access: trucks up to 60 tonnes in overall weight.
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
Supportwidth * (mm)
80 x 8 90 x 8 100 x 8 110 x 8 120 x 8 130 x 8 140 x 8 150 x 8 100 x 10
163,84
122,88
81,92
61,44
36,68
43,12
207,36
155,52
124,42
103,68
62,21
40,39
32,07
51,84
35,75
256,00
192,00
153,60
128,00
64,00
76,80
54,86
44,14
39,59
35,89
32,82
30,24
309,76
232,32
185,86
154,88
77,44
116,16
66,38
58,08
51,63
43,42
39,71
36,59
368,64
276,48
221,18
184,32
110,59
138,24
78,99
69,12
61,44
55,30
50,27
43,54
FP
432,64
324,43
259,58
216,32
129,79
162,24
108,16
81,12
72,11
64,90
59,00
54,08
47,37
44,15
41,34
38,86
36,66
34,70
FP
501,76
376,32
301,06
250,88
150,53
188,16
125,44
107,52
83,63
75,26
68,42
62,72
57,90
53,76
50,18
45,07
42,52
40,25
FP
576,00
432,00
345,60
288,00
172,80
216,00
144,00
123,43
108,00
86,40
78,55
72,00
66,46
61,71
57,60
54,00
50,82
46,20
FP FPFPFPFP
B e a r i n g b a r s ( m m ) o t h e r b e a r i n g b a r s u p t o 2 0 0 x 1 2 o n r e q u e s t.
80 x 10
FP
204,80
153,60
122,88
102,40
51,20
61,44
39,90
35,31
31,67
27,93
90 x 10
FP FP
259,20 320,00
194,40 240,00
155,52 192,00
129,60 160,00
64,80 80,00
77,76 120,00
55,54 68,57
44,69 60,00
40,08 53,33
36,34 44,86
33,23 41,03
30,61 37,80
35,04
32,65
30,57
110 x 10
FP
387,20
290,40
232,32
193,60
116,16
145,20
82,97
72,60
64,53
58,08
52,80
45,73
42,39
39,51
36,99
34,78
32,81
31,06
31,92
27,31
24,58
22,34
20,48
18,90
17,55
16,38
15,36
14,46
13,65
12,93
28,28
25,92
23,93
20,74
19,44
18,30
17,28
16,37
22,22 27,43
25,60
24,00
22,59
21,33
20,21
33,92
31,61
29,04
27,33
25,81
24,45
40,36
37,62
35,22
33,11
31,24
29,10
28,24
26,67
25,26
27,77
25,92
24,30
22,87
21,60
20,46
25,60
23,63
21,94
20,48
19,20
18,07
17,07
16,17
Heavy Duty
Press Locked Gratings
FP
The values shown have been calculated formaximum permissible load rating on thebasis of the relevant load carrying area andbearing bar spacing of 50 mm.
Conversion factor for kg into kN
10 kN - 1 tonne1 kN - 100 kg
www.ferrograte.com 6
If the gratings you order are for ve-hicular use, you must give us detailsin advance – wheel load, load carry-ing area, clear span and direction oftravel so that we can calculate thegrating flooring.
Standard Mesh Spacing
Bearing bar Cross bar
25 x 50 100
50 x 50 10075 x 50 75 100
100 x 50 75 100
Bridge class Colour key Wheel load Load carrying area
3/3
9/9
30/30
60/30
Vehicle up to 3 t
Vehicle up to 9 t
Vehicle up to 30 t
Vehicle up to 60 t
10 kN
30 kN
50 kN
100 kN
200 x 200 mm
200 x 260 mm
200 x 400 mm
200 x 600 mm
80x8
90x8
100x8
110x8
120x8
130x8
140x8150x8
80x10
90x10
100x10
110x10
120x10
130x10
140x10
150x10
100x12
110x12
120x12
130x12
140x12
150x12
160x12
170x12
180x12
15x6
25x6
25x6
25x6
25x625x6
40x6
40x6
40x8
40x8
40x8
40x8
40x8
40x8
40x8
40x8
40x10
40x10
40x10
40x10
40x10
40x10
40x10
40x10
40x10
bearing bar length max. 2500 mm
Bearing bar Cross bar
120 x 10 150 x 10
FP
180 x 12
460,80
345,60
276,48
230,40
138,24
172,80
115,20
86,40
76,80
69,12
130 x 10 140 x 10
540,80
405,60
324,48
270,40
202,80
135,20
101,40
81,12
162,24
115,89
627,20
470,40
376,32
313,60
188,16
235,20
156,80
134,40
117,60
104,53
FPFP
720,00
540,00
432,00
360,00
216,00
270,00
180,00
154,29
135,00
120,00
FP
100 x 12
384,00
288,00
230,40
192,00
115,20
144,00
82,29
72,00
64,00
57,60
FP
110 x 12 120 x 12 130 x 12 140 x 12 150 x 12 160 x 12 170 x 12
FP
464,64
348,48
278,78
232,32
139,39
174,24
116,16
87,12
77,44
69,70
FP
552,96
414,72
331,78
276,48
165,89
207,36
138,24
118,49
103,68
82,94
FP FP FP FP FP
648,96 752,64 864,00 983,04 1109,76 1244,16
486,72 564,48 648,00 737,28 832,32 933,12
389,38 451,58 518,40 589,82 665,86 746,50
324,48 376,32 432,00 491,52 554,88 622,08
194,69 225,79 259,20 294,91 332,93 373,25
243,36 282,24 324,00 368,64 416,16 466,56
162,24 188,16 216,00 245,76 277,44 311,04
139,06 161,28 185,14 210,65 237,81 266,61
121,68 141,12 162,00 184,32 208,08 233,28
108,16 125,44 144,00 163,84 184,96 207,36
147,46 166,46 186,62
134,05 151,33 169,66
FP
113,43 128,05 143,56
105,33 118,90 133,30
122,88 138,72 155,52
62,84
57,60
53,17
47,02
44,03
41,39
39,05
36,96
73,75
67,60
57,94
54,08
50,70
45,83
43,38
62,40
85,53
78,40
72,37
67,20
62,72
58,80
55,34
52,27
83,08
77,14
72,00
67,50
63,53
60,00
52,36
45,35
42,04
39,18
36,69
34,49
32,54
30,80
47,41
44,39
41,73
39,38
37,27
59,25
55,30
51,84
46,86
44,36
69,53 80,64 92,57
64,90 75,26 86,40
60,84 70,56
57,26 66,41
54,08 62,72
108,00
90,00
63,36
58,08
53,61
75,40
69,12
63,80
88,49 112,90 129,60
81,12 102,63 117,82
74,88 86,84 108,00
92,16
86,74
81,92
110,98 124,42
104,04 116,64
92,48 109,78
81,00
76,24
72,00
B e a r i n g b a r s ( m m )
7 www.ferrograte.com
Heavy Duty
Press Locked Gratings
www.ferrograte.com 8
ductile iron /
gully gratings
FERROGRATE, an ideal product to change the danger zone safest foreveryone
Ferrograte offers wide range of Manhole covers with frames, Channel gratings, Kerb Gullies, Gully Gratings, Step Irons, Tree Grates etc
Manufactured as per BS EN 124 and covers all application sectors.
Areas of Application: Pedestrians, Footways, Carparks, KerbsideChannels of roads, Carriage ways, Docks, Airports Trench in ware houses& etc. Various sizes available as per request.
Type
A
Class Description Load
B
C
D
E
F
A15
B125
C250
D400
E600
F900
Manhole cover and Gully cover
Manhole cover and Gully cover
Manhole cover and Gully cover
Manhole cover and Gully cover
Manhole cover and Gully cover
Manhole cover and Gully cover
15KN
125KN
250KN
400KN
600KN
900KN
STEP IRONS available in Galvanized Finish & Plastic coated Finish.Manufactured as per BS EN 1247.
SPECIFICATION TABLE:
Architectural
gratings
we have many pattern variations for you to choose from and we are able to offer gratings to match and suit yourload requirements. Gratings are manufactured from Cast Iron, Ductile Iron, Stainless Steel laser cut, GalvanisedSteel with or without frames.More Information available on request.
Stainless Steel
Gratings
a) Meshes :
b) Bearing bar dimensions :
c) Material :
d) Surface treatments :
30/30, 30/11, 20/20, 23/23, 30/60, 40/40, 15/46, 15/96, 32/29, 32/46, 32/96 mmAll meshes can be produced in plain or serrated surface design.
20/2, 25/2, 30/2, 40/2, 50/2, 20/3, 25/3, 30/3, 40/3, 50/3, 25/5, 30/5, 40/5, 50/5, mm.
Basically stainless steel gratings are produced in two different materials :1. Material no. 1.4301: Rust resistant (AISI 304)2. Material no. 1.4571: Rust and acid resistant (AISI 316L)
Raw (untreated), pickled, electro polished, or blasting with sand or glass pearls.
ALUMINIUM GRATINGS
ALUMINIUM GRATINGS
Aluminium gratings are manufactured by a high-powerpressing process in which all joints are made withoutwelding. The finished panels can be cut to size at anypoint without impairing the strength and rigidity. Alu-minium gratings are available in heights of 20, 25, 30 and 40 mm 3/4", 1", 13/16", and 19/16".
The standard panel sizes are approx.3000x1000 mm/99" x 3'3" or approx.6000 x 1000 mm/19.6" x 3'3"
The direction of the bearing bars is denoted by the under-lining. All specified sizes up to the above dimensions canbe banded with edge trims on request; the standardpanels have no edge trims.
www.ferrograte.com9
Stairtreads are designed for a simply supported condition when having a single con-centrated imposed load of 1.5 kN spread over an area of 150 mm x 150 mm placed atthe centre of the front edge of a tread.
The maximum recommended deflections is 1/200th of the effective span or 6 mmwhichever is lesser.
RECOMMENDED WIDTHS (Based on 5mm load bars)
LOAD BEARING BAR SIZE AND MAXIMUM LENGTH
A TYPE 130
122
160 190
204
20X3
665
597
841 944 1095
1004
1311
1228732 846
20X5 25X3 25X5 30X5
163
220 250 280
286245
310
327B TYPE
LOAD BAR SIZE
A TYPE
B TYPE
(A or F)
REAR CORNER OF TREAD END PLATESNIPED OFF AS SHOWNUNLESSMARKED THUS FRONT FIXING HOLE 14 DIA
REAR FIXING HOLE 14 X 30 SLOTUNLESS NOTED OTHERWISE, TREAD END PLATE IS65 X 6 M.S.FLAT
AntislipNOSING
OVERLAP
TREAD
NOSING WIDTH (5) GRATING CENTRE WIDTH (C)
GOING (L)
TREAD WIDTH (A)TR
EA
DR
ISE
(K)
16 MINIMUM (M)
TO SUIT K
STR
INGER
LINE
15 15
045
H
D E
END PLATE WIDTH (F)
GRATING
STAIR TREADS
www.ferrograte.com 10
Available in stainless steel 304 or 316, Mild steel Hot Dip Galvanized
GRATING Clamps
Comprising of
FSaddle Clip FPressed Clamp Plate FM8 x 70 Bolt & Nut
Manually Welded Heavy Gratings
Welded Heavy Duty Gratings are designed to meet the need for gratings subject toheavy rolling and static loads such as highways, plant floors, loading docks, inletcovers and airports. Since these conditions can range from light-duty forklifts tosemi-trucks and trailers carrying maximum allowable highway loads, Heavy Dutygratings are manufactured in a wide variety of bar sizes and spacing.
BEARING BAR SELECTION Once the bar spacing is selected, the bearing bar sizemust be specified based upon the anticipated load and the clear (unsupported) span tobe served.
SERRATED SURFACE Optional serrated bearing bars can be specified to enhanceskid resistance. To maximize skid resistance, specify 100% Serrated grating. ThisHeavy Duty grating is manufactured with serrated bearing bars and serratedrectangular cross bars.
www.ferrograte.com11
FRP Molded
Gratings
concentrated load with
300x75 mm block
Span
mm
mesh 85x18xh25 (100x25xh25)
Ped
est
rian
Tra
ffic
Lig
ht
-med
ium
Lo
ad
sSem
i-h
eavy
Lo
ad
sH
eavy
Lo
ad
s
mesh 30x30xh25 (40x40xh25)
mesh 30x30xh30 (40x40xh30)
mesh 19x19xh30 (25x25xh30)
mesh 30x30xh38 (40x40xh38)
mesh 8x8xh30 (17x17xh30)
mesh 19x19xh40 (25x25xh40)
mesh 40x15xh55 (50x25xh55)
600
600
600
600
600
600
600
800
420
350
550
570
950
640
1160
1620
270
200
380
350
430
430
600
620
1650
1300
2220
2420
4470
2660
4930
3930
1660
1120
2100
1930
3250
1820
3270
2780
800
800
800
800
800
800
800
1000
260
230
390
420
680
450
850
1380
210
160
300
270
335
340
460
585
700
550
940
1020
1890
1120
2080
2010
940
630
1180
1090
1830
1020
1840
1780
1000
1000
1000
1000
1000
1000
1000
1200
190
170
290
320
540
345
660
990
200
150
280
260
320
325
440
540
360
280
480
520
970
570
1070
1170
600
400
760
700
1170
650
1180
1230
1200
1200
1200
1200
1200
1200
1200
1400
160
130
230
260
430
280
530
780
190
140
270
250
300
310
430
500
210
160
280
300
560
330
620
730
420
280
530
480
810
450
820
910
Load with
1% defl.
Safety factor
10:1 load daN
Load with
1% defl.
Safely factor
10:1 load daN/m2
uniformly distributed
load
Gratings with closed and sandwich surface
Depending on the selected mesh type, the load values of gratings manufactured with closedand sandwich surface increase from a minimum of +35% up to +200% compared to the loadvalues of the same mesh type with open surface (if you need to define correct load values forspecific applications please contact our Technical Department).
www.ferrograte.com 12
FRP Guardrails
FRP GuardrailsManufactured with the pultrusion process (heat polymerization of a profile drawnthrough a die), the fiberglass reinforced polyester guardrail shapes contain up to70% glass fibers, guaranteeing extraordinary mechanical properties to the system(superior to those of steel on a weight to weight comparison). The guardrail systemis composed of various standard elements: vertical posts, fixing bases, varioussections of shapes of 6 Mts. lengths.
Main Features
High mechanical resistanceLight weightEasy installation and fabricationElectrical and thermal insulationMaintenance Free
FRP Vertical Ladders
FRP Vertical LaddersCorrosion proof laddersManufactured with isophthalic resin putruded profiles. Fixed vertical ladders are suitable for any application in corrosive environments.
Excellent mechanical resistanceThe excellent mechanical resistance and the anti-slip rung profile, make the ladders ideal forintensive use. Model 470 is in conformity with EN 14122 standards.
Easy to useSupplied in the requested lengths (up to 6 m in one part, beyond 6 m, in two parts). With or without fixing plates, with or without safety cage, they can be adapted to any application. Their lightweight structure further helps easy installation.
FRP Structures
FRP StructuresA complete range of structural shapes...Square shapes, U, I, H sections. The production range starts from a 50x50 square shapeup to a large 200x200 H shape, a thousand times more rigid and unique in its kind (seetechnical sheet).
Manufactured by the pultrusion process (continuous wetfiber rovings and mat are pulledthrough a series of forming guides and heated) the structural shapes have extraordinaryrigidity. corrossion resistance and lightweight. The Ticomm & Promaco structural shapesare designed to ensure complete reliability and safety.Manufactured by the pultrusion process(continuous wetfiber rovings and mat are pulledthrough a series of forming guides and heated) the structural shapes have extraordinaryrigidity, corrosion resistance and lightweight. The Ticomm & Promaco structural shapesare designed to ensure complete reliability and safety.Corrosion resistance: without problemThe thermosetting isophthalic resin system normally used guarantees excellent corrosionresistance (other resin systems available on demand). Ticomm & Promaco stabilizes thebeams against U.V.ray exposure by adding a resin-rich synthetic veil on the external surface;this barrier increases the volume of resin and avoids leaving the fibers in plain view. Inmany cases Ticomm & promaco also incorporates a C type glass while avoiding the useof additives which often decrease the chemical properties.
Technical characteristics
www.ferrograte.com13
RESIN SELECTION
Eurograte pultruded gratings are manufactured using two resin formulations that aresuitable for most of the industrial applications. Both resin systems provide superiorcorrosion resistance compared to metal gratings.
ISOPHTHALIC RESIN SYSTEM
VINYL ESTER RESIN SYSTEM
This resin formulation provides a flame spread rating of less than 25 according toASTM E84norm. Gratings in this resin formulation are designed to be used inmoderate corrosive environments where splashes and spills of harsh chemicalsare likely. Standard color is yellow.
This resin formulation provides a flame spread rating of less than 25 according toASTEM E84 norm. Gratings in this resin formulation are designed to be used in highlycorrosive environments where the contact of harsh chemicals is frequent. Standardcolor is grey.
FRP Pultruded
Gratings
SELECTION & DESCRIPTION
"I H=25,4 15.2 mm 38.1 mm 22,9 mm 11.0 60%
38.1 mm 50.8 mm 12,7 mm 12.2 33%
15.2 mm 30.5 mm 15,2 mm 19.1 50%
15.2 mm 38.1 mm 22,9 mm 16.1 60%
25.4 mm 38.1 mm 12,7 mm 19.5 33%
25.4 mm 50.8 mm 25,4 mm 15.1 50%
"T" H=25,4
"I" H=38,4
"I" H=38,1
"T" H=50,8
"T" H=50,8
GI-6010
GT-3310
GI-5015
GI-6015
GT-3320
GT-5020
CODE BEARING BAR BAR WIDTH BAR SPACING OPEN SPACE WEIGHT KG/M2 OPEN AREA
www.ferrograte.com 14
SPAN CODE
GI-5015 <1 <1
<1 <1
<1 1.2
<1 1.5
1.0 2.0
1.3 2.6
1.4 2.8
3.61.8
2.7
3.5
3.6
4.6
5.4
7.0
7.2
9.2
GT-6015
GI-5015
GI-5015
GI-5015
GI-5015
GI-5015
GT-6015
GT-6015
GT-6015
GT-6015
GT-6015
LoadsIn case of pedestrian loads we suggest selecting a grating with deflection limited to the lesser of 10mm or span divided by 125. For a stiffer feeling, limit deflectionto span divided by 200.
150 300
4.2
5.4
8.1
10.5
<1
<1
1.8
2.3
3.0
3.9
450
<1 1.5 1.8 2.1 4.2 8.4
<1 1.9 2.3 2.7 5.4
8.2
10.4
14.0
5.2
7.0
9.1
9.8
12.6
10.8
2.4 3.0 3.6 4.1
3.0 3.8 4.6
6.0
7.8
8.4
10.8
4.0 5.0
6.5
7.0
9.0
13.5
5.2
5.6
7.2
10.8
14.0
14.410.8
13.8
600 750 900 1050 2100 4200
LOAD TABLES 38.1 MM THICKNESS GRATINGS
LOAD TABLES 25.4 MM THICKNESS GRATINGS
SPAN CODE
GI-6010 <1 <1
<1 <1
<1 1.8
<1 2.5
2.4 4.8
3.2 6.5
4.2 8.5
5.6 11.2
GT-3310
GI-6010
GT-3310
GI-6010
GT-3310
GT-3310
GI-6010
250 500
12.7
<1
1.3
2.7
3.7
7.2
9.7
750
1.2 1.5 1.8 2.4 3.0 3.6
1.7 2.2 2.6 3.4 4.4 5.2
3.6 4.5 5.4 7.2 9.0 10.8
5.0 6.2 7.4 10.0 12.4
9.6 12.0 14.4
13.0
1000 1250 1500 2000 2500 3000
UNIFORMLY DISTRIBUTED LOAD (KG/M2) - DEFLECTION IN MM
600
800
1000
1200
SPAN CODE
GI-6010 <1 1.3
<1 1.4
1.8 3.6
2.0 4.0
2.8 5.6
3.1 6.2
4.1 8.2
4.5
5.8
6.4
9.0
11.6
12.8
GT-3310
GI-6010
GT-3310
GI-6010
GT-3310
GT-3310
GT-3310
GI-6010
GI-6010
150 300
12.3
13.5
1.9
2.1
5.3
5.9
8.4
9.3
450
2.6 3.2 3.8 4.5 8.9
2.8 3.5 4.2 4.9 9.8
7.2 9.0 10.6 12.6
8.0 10.0 11.8
11.2 14.0
12.4
600 750 900 1000 2100 4200
CONCENTRATED LINE LOAD (KG/M) - DEFLECTION IN MM
CONCENTRATED LINE LOAD (KG/M) - DEFLECTION IN MM
600
800
1000
1200
1400
SPAN CODE
GI-5015 <1 <1
<1 <1
<1 1.1
<1 1.4
1.2 2.4
1.5 3.0
2.1 4.3
5.52.7
4.0
5.1
6.7
8.5
8.0
10.2
13.5
17.0
GT-6015
GI-5015
GI-5015
GI-5015
GI-5015
GI-5015
GT-6015
GT-6015
GT-6015
GT-6015
GT-6015
250 500
6.5
8.2
12.0
15.3
<1
<1
1.6
2.1
3.5
4.5
750
<1 1.1 1.2 1.7 2.2 2.5
1.1 1.4 1.6 2.2 2.8
5.5
7.0 8.45.6
9.5
12.0
3.2
2.2 2.7 3.3 4.4 6.6
2.8 3.5 14.2
7.1
9.0
12.9
16.4
4.7 5.9
7.5
10.8
13.7
6.0
8.7
11.0
1000 1250 1500 2000 2500 3000
UNIFORMLY DISTRIBUTED LOAD (KG/M2) - DEFLECTION IN MM
800
1000
1200
1400
1600
1800
800
1000
1200
1400
1600
1800
FRP Pultruded
Gratings
Load-deflection informationThe load data indicated in the tables represent typical values calculated by our testing laboratory and are intended as a selection guide of the best suited grating.The load values could have a variation of +/-10%.
www.ferrograte.com15
Steel Hand Rails
www.ferrograte.com 16
Ferrotech can supply Handrail system comprisingof stanchions, rails bends, Kickplates, Grating and Stairtreads.
APPLICATIONSStairways, Bridges, Parking stations, Schools, CommercialPremises, Fire escapes, Gangways, Power stations, Sewagetreatment works and Marinas.
SPECIFICATIONSOD - 48.3 mmNB - 40 mmWT - 3.2 mm or 4 mmBall Size - 76 mm OD
Cable Trays
MANUFACTURING STANDARDS:
Our products are manufactured as per the international standards
BS50085, NEMA VE 1, BS/IEC 61537, ASTM & UL.
MANUFACTURED IN
(a) Mild Steel (Finish Hot Dip Galvanised, Painted & Powder Coated),
(b) Pre Galvanised Steel, (c) Aluminium,
(d) Stainless Steel (e) FRP/GRP
Cable trays & Ladders supplied in standard lengths of 2.44 & 3.00 Meters.
Cable Ladders also available in special lengths of 3.858, 6.000 & 7.315 on request.
CABLE LADDER
Cable Ladders Fabricated with Outside & Inside flange
Specifications :
Width : 50/75/100/125/150/200/225/250/300/400 UPTO 1200 mm
Height : 50/75/100/125 & 150 mm
Thickness : 1/1.2/1.5/2 &2.5mm
Rung type: Slotted C Section / Pipe Rung
Rung spacing : 150/250 &300
Fittings :- Horizontal Cross, Horizontal Bend ( 30°,45°,60° & 90°),
Horizontal TEE, Vertical TEE,90° Internal & External Riser,
Left Hand Reducer, Right Hand Reducer, Adjustable Bend etc
Accessories:- Standard Connectors, Adjustable / Expansion Connectors, Vertical &
Horizontal Adjustable Connectors ,
Hold Down Clamp, Guide Clamp, Bonding Jumper
Cover Type:- Plain Cover, Flanged Plain Cover, Louvered Cover &
Flanged Louvered Cover(Thickness 1.0,1.2,1.5&2.0mm)
CABLE TRAY
Types:-
Plain Flange Type , Inside Return Flange,
Outside Return Flange, "C"- Profile Flange
Specifications:
Width : 50/75/100/125/150/200/225/250/300/400 UPTO 1200 mm
Height : 25/50/75/100mm
Thickness : 1/1.2/1.5 &2 mm
Fittings :- Horizontal Bend (90° & 45°), 90° Inside & Outside Riser,
Straight Reducer, Right Hand Reducer, Left Hand Reducer, Horizontal Cross,
Horizontal TEE, Unequal Cross & TEE.
Accessories:- Standard Connectors, Vertical & Horizontal Adjustable Connectors ,
Hold Down Clamp, Fish Plate , Side Cover Connector, Neck Screw, Right Angle
Connector, Bonding Jumper
Cover Type:- Plain Cover, Flanged Plain Cover, Louvered Cover &
Flanged Louvered Cover(Thickness 1.0,1.2,1.5&2.0mm)
www.ferrograte.com17
Composite Metal
Decking Profiles
Profiles to suit your design specification We offer a range ofprofiles in gauges varying from 0.9mm to 1.2mm; all profilesare manufactured from steel strip to BSEN 10143 and BSEN10147 with guaranteed minimum yield strengths of 280 and
2 2350 N/mm and a minimum coating mass of 275g/m
The differing advantages of each profile gives the flexibility to meet specific projects requirements.
Metal Decking R51 Metal Decking TR60 Metal Decking TR80
The R51 offers the greatest slab load bear-ing capacity in our range. In addition, the150mm rib spacing of this profile allows thegreatest number and optimum performanceof shear studs to maximise the benefits ofcomposite beam design. Using this profileslabs as thin as 100mm can be constructed,whilst still achieving a typical 1 hour firerating.
The TR60 profile gives high span capabilitiesat a competitive price. Due its 1.0mcover width, this profile can be installedquickly making it a popular choice for manydesign engineers. The typical 1 hour firerating can be achieved with a 130mm slab.
The TR80 profile has a concrete volume upto 25% less than other profiles. The typical 1hour fire rating can be achieved with a140mm slab.
The TR80 provides the greatest spanningcapabilities of our range. An excellent qualityprofile which is also priced competitively, theTR80 delivers strength as well as high speedof installation.
CONCRETE SLAB
MESH REINFORCEMENT (or TAB-Deck)
R51 DECK PROFILE
END TAPE
19mmO x 95mm SHEAR STUD
EDGE TRIM AND RESTRAINT STRAP
FIXINGS TO SUITPROJECT SPECIFICATIONS
50mm min. BEARING FORTRIM ONTO STEELWORK
50mm min. BEARING FORDECK ONTO STEELWORK
CONCRETE SLAB
MESH REINFORCEMENT (or TAB-Deck)
TR60 DECK PROFILE
19mm O x 120mm SHEAR STUD
EDGE TRIM AND RESTRAINT STRAP
0.7mm END CAP
FIXINGS TO SUITPROJECT SPECIFICATIONS
50mm min. BEARING FORTRIM ONTO STEELWORK
50mm min. BEARING FORDECK ONTO STEELWORK
CONCRETE SLAB
MESH REINFORCEMENT (or TAB-Deck)
TR60 DECK PROFILE
19mm O x 95mm SHEAR STUD
EDGE TRIM AND RESTRAINT STRAP
0.7mm END CAP
FIXINGS TO SUITPROJECT SPECIFICATIONS
50mm min. BEARING FORTRIM ONTO STEELWORK
50mm min. BEARING FORDECK ONTO STEELWORK
www.ferrograte.com 18
Through deck welding is also possible wherethe Headed shear connector is welded througha formed galvanized sheet onto a steel beam.Concrete is then poured over the formed sheetand the shear connectors.
Shear Connector
Studs
Refractory Anchors
Headed Shear Connector Studs
Tensile strength
Technical Data (Shear Connectors)
Minimum 450 N/mm2
Minimum 350 N/mm2
20%min.
Upto 0.08 - 0.18
0.30 - 0.60
0.15 - 0.30
Yield point
Elongation
Manganese
Silicon
Carbon
Dimensions of shear connectors(All dimensions are in mm.)
We can provide different lengths against order.
Stud Dia. (d1) Stud Dia. (d2) Length (L)
50/75/100/125
75/100/125/135
75/100/125/135
75/100/125/135
16 32
19 32
22 35
25 40
d2
d1
L
Brick anchoring systemsB-01 Staples
Concrete Anchoring systems for one component liningsC-01 Split ‘Y’ Anchor C-02 Standard’V’ Anchors.C-03 Corrugated bullhorn (stud welding)C-04 Heavy corrugated bullhornC-05 Corrugated ‘H’ AnchorsC-06 Flat ‘Y’ AnchorsC-07 Flat ‘E’ AnchorsC-08 Corrugated ‘V’ stripC-09 Corrugated ‘V’ AnchorsC-10 TW Movable AnchorsC-11 Corrugated bullhorn (hand welded)C-12 Speed cells,Eco-vinsand C-Mix.C-14 Round Y Anchors
Concrete Anchoring systems for two composite linings D-01 Twin Pin AnchorD-02 ‘V’ on Nut SystemD-03 Threaded V and CH anchors
Ceramic Fibre anchoring systems F-01 P-Pin SystemF-02 Fiberfix SystemF-04 Press On Clip SystemF-05 M A S SystemF-06 Cerafix SystemX-01 Cerascrew
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Specification List of Welded Wire Mesh
Opening Wire Diameter<BWG>In inch In metric unit(mm)
1/4” x 1/4”
3/8” x 3/8”
½” x ½”
5/8” x 5/8”
3/4” x 3/4”
1” x ½”
1-1/2” x 1-1/2”
6.4mm x 6.4mm
10.6mm x 10.6mm
12.7mm x 12.7mm
16mm x 16mm
19.1mm x 19.1mm
25.4mm x 12.7mm
38mm x 38mm
22,23,24
19,20,21,22
16,17,18,19,20,21,22,23
18,19,20,21
16,17,18,19,20,21
16,17,18,19,20,21
14,15,16,17,18,19
1” x 1” 25.4mm x 25.4mm 8,9,10,11,12,13,14
1” x 2” 25.4mm x 50.8mm 14,15,16
2” x 2” 50.8mm x 50.8mm 3,4,5,6,8,10,12
Technical Note: 1, Standard Sheet size: 1.2 x 3.0mm 2, Standard rolllength: 30m; width: 0.5m to 1.8m, Special sizes available at request,packing: in waterproof paper in rolls. Custom packing available at request.
Galvanized Welded Mesh Panel is made of superior quality welded Mesh,with flat even surface, firm structure, be used extensively in building, food,agriculture and so on.
Assortments available
FHot-dip galvanized after welding
FHot-dip galvanized before welding
FElectro galvanized after welding
FElectro galvanized before welding
FPVC coated
FStainless Steel welded wire mesh
FCrimpled wire mesh
FWoven wire mesh
FHex. wire netting in normal twist
FHex. wire netting in reverse twist
before welding
FPVC coated after welding
Galvanized Fencing Mesh
Opening Wire Diameter<BWG>In inch In metric unit(mm)
2” x 3”
3” x 3”
2” x 4”
4” x 4”
50mm x 75mm
75mm x 75mm
50mm x 100mm
100mm x 100mm
2.0mm,2.5mm,1.65mm
2.67mm,2.41mm,2.11mm,1.83mm,1.65mm
2.11mm,2.5mm
2.0mm,2.5mm - 6.0mm
Technical Note.
1. Standard Sheet size 1.2 x 3.0mm2. Standard roll length:30m;width: 0.5m to 2.1m3. Special sizes available at request.3. Packing: in waterproof paper in rolls. Custom packing available at request.
PVC Coated Welded Mesh
Opening Wire Diameter<BWG>In inch In metric unit(mm)
1/2” X 1/2”
3/4” X 3/4”
1” X 1”
12.7mm x 12.7mm
19mm x 19mm
25.4mm x 25.4mm
16,17,18,19,20,21
16,17,18,19,20,21
10,12,14,16,18,20
Technical Note:
1,Standard roll length: 30m;width: 0.5m to 2.0m
2,Special sizes available at request
3,Packing: in waterproof paper in rolls. Custom packingavailable at request.
Welded
Wire Mesh
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P.O.Box : 1688, P.C. 133, Al-Khuwair, Sultanate of Oman
Email : [email protected]
Tel : +968 24502841, Fax : +968 24502842.
FERROTECH INTERNATIONAL FZE
P.O.Box : 21023, Ajman, E-19, Ajman Free Zone, United Arab Emirates
E-mail : [email protected] / [email protected]
Tel : +971 6 740 11 37, Fax : +971 6 740 11 38
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FERROTECH STRUCTURALS (INDIA) PVT. LTD.
1/39-6-3, North Parade Road, St. Thomas Mount, Chennai - 600 016.
Tamilnadu, INDIA. Email : [email protected]
Ph : +91 - 44 - 4351 9653 Fax : +91 - 44 - 4351 9652
Web : www.ferrotechindia.net