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Copyright Ⓒ 2015 JFE Steel Corporation. All Rights Reserved.
1. Features
1
Mighty Seam™, HFW Line Pipe (1/3)
Mighty Seam™ is a high-performance HFW* line pipe that employs advanced QC/QA** technologies.
Mighty Seam™ features:
1) Clean, full-length electric-weld seams (highly reliable seams)
2) Both weld seam and pipe body exhibit superior properties.
[ I.E., lower temperature toughness and higher strain capacity ]
Mighty Seam™ has been qualified by major companies and used in applications in place of Seamless
and UOE line pipes at a lower investment cost.
*HFW pipe: a pipe welded using High-Frequency Electric resistance welding.
**QC: Quality Control; QA: Quality Assurance
Wall
thickness
Welding direction
Clean weld (very few inclusions)
Mighty Seam™ HFW
Conventional HFW
Sending beam
Reflection beam
Weld seam
Scanning full thickness
High-sensitivity ultrasonic scanning image
[JFE original]
Copyright Ⓒ 2015 JFE Steel Corporation. All Rights Reserved.
2. Technical Advantages
3. Commercial Advantages
2
・Cost competitive against Seamless or DSAW pipe
・More efficient girth welding during installation
due to its precise diameter
Suitable for demanding applications, such as:
1) Reel-lay (DNV OS-F101 Suffix-P)
2) Low-temperature service
-46oC (-50oF)
3) Sour service (API 5L Annex-H)
4) J-lay and S-lay
5) Heavy wall pipes of up to 25.4 mm
(1.000”)
Reeling simulation
bend test (No buckling)
Charpy Impact Test Properties
0
50
100
150
200
250
300
350
400
- 120 - 100 - 80 - 60 - 40 - 20 0
Testing Temperature ( o C)
Ab
so
rbed
en
erg
y (
J)
X65M PSL2 323.9 mm x WT15.9 mm
Mighty Seam TM （ Welds ）
vTrs =
- 80 o C
Conventional
HFW (Welds )
Pipe Body
vTrs = - 90 o C
vTrs = - 37 o C
CVN 7.5x10mm 2mmV
0
50
100
150
200
250
300
350
400
- 120 - 100 - 80 - 60 - 40 - 20 0
Testing temperature (℃）
Absorb
ed e
nerg
y (
J) Mighty Seam ™ ( Welds )
vTrs =
- 80 o C
Conventional
HFW (Welds )
Pipe body
vTrs = - 90 o C
vTrs = - 37 o C
CVN 7.5 x 10 mm 2 mmV
Mighty Seam™, HFW Line Pipe (2/3)
Copyright Ⓒ 2015 JFE Steel Corporation. All Rights Reserved.
4. Supply Record
3
Field Proven : In total, 33,000 MT has been supplied globally.
Customers : Supermajors, national oil companies, majorEPC companies
Areas : Canada, Alaska, Northern Europe, Australia, etc.
Developed in 2009
Low temperature service ( -46ºC [-50ºF] )
Reel-lay
Offshore Sour Gas
A supermajor oil company employs Mighty Seam™ as it highly rates its excellent weld reliability.
Suitable Applications
Mighty Seam™, HFW Line Pipe (3/3)
Contact Address
Region Office Person in charge E-mail Address Phone
America JFE Steel America, Inc.,
Houston Office Nobuhiko Kusui [email protected] (1) 713-532-0052
Europe / Russia /Africa JFE Steel Europe Limited
(London) Masaaki Doi [email protected] (44) 20-7426-0166
Asia / Pacific JFE Steel Asia Pte. Ltd.
(Singapore) Toru Kuwana [email protected] (65) 6-220-1174
Middle East JFE Steel Corporation,
Dubai Office Yosuke Imai [email protected] (971) 4-884-1833
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Copyright Ⓒ 2015 JFE Steel Corporation. All Rights Reserved. 4
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