Se Jin Tube Tech E Catalogue

GENERAL INFORMATION FOR PRE-QUALIFICATION

SEJIN TUBE TECH CO., LTD.

1.COMPANY INTRODUCTION 1-1.Introduction & Contact Information

1-2.Company History

1-3.Company Overall View

1-4.Organization

1-5.Company Profile

1-6.Main Customers

2.PRODUCT INTRODUCTION 2-1.Main Products

2-2.Production Process

2-3.Dimension & Tolerance (ASTM A249/JIS G3463/KS D3577)



2-6.Manufacturing Facilities

2-7.Testing Facilities

2-8.Details of Each Facility

2-9.Packing & Storage

3.Q.C MANUAL 3-1.Quality Management System

3-2.Quality Management Process

3-3.Quality Control Plan

4.CERTIFICATES

5.MAJOR SUPPLY RECORD

CONTENTS

1. COMPANY INTRODUCTION

www.sejintube.co.kr 1

1-1. Introduction & Contact Information


Introduction Sejin Tube Tech Co., Ltd. was established in 2005 and we are a manufacturer of Stainless Steel

Tube for Boiler, Heat Exchanger, Ordinary piping, Machinery, Structure, Sanitary tubing, etc.

We’ve been continuously grown through a good reputation and the endless technical development.

Now we’re expanding our market to the international as we obtain the international certificates and

the unique technologies.

We, Sejin Tube Tech Co., Ltd. promise our customers to go ahead as a front-runner of the Stainless

Steel Pipe Manufacturer in the world market as well as in the domestic market while collecting the

accumulated Know-How and capability. Thank you.

Contact Information • Company Name : Sejin Tube Tech Co., Ltd.

• Representative : Myung Chol Kim

• Address : 239-1, Gamno-ri, Sangdong-Myeon, Gimhae-si, Gyeong Nam, Korea 621-811

• TEL : +82-55-337-0041 / FAX : +82-55-337-0042

• Website : www.sejintube.co.kr

• E-Mail : [email protected]

http://www.sejintube.co.kr/�

1-2. Company History


May. 2005

May. 2005

Jan. 2006

Feb. 2006

Nov. 2006

Jan. 2007

Jan. 2007

Apr. 2007

Jun. 2007

Aug. 2007

May. 2008

Nov. 2008

Mar. 2009

Dec. 2010

Established Sejin Tube Tech Co., Ltd.

Acquired Patent for Stainless Arc Welding

Acquired ISO 9001:2000 certificate

Extended the Line for Boiler & Heat Exchanger Tube (2 Lines)

Completion of the 2nd shop (Pipe Line & Off-Line Oxidized Heat Treatment)

Seamless Tube Line extension (Plug Draw Bench).

Registered as a member of Korea Standard Association.

Registered as a supplier to Jord International Pty Ltd.(Australia)

Registered as a supplier to Mitsubishi Heavy Industries, Ltd.(Japan)

Acquired KS mark certificates (KS D3595, KS D3577)

Registered as a supplier of Sungjin Geotec, Wooyang H.C.,TSM Tech,

Hantech, Iljin Energy(Korea)

Registered as a supplier to DOW Chemical Company/Vectel

Registered as a supplier to Doosan Heavy Industries

Acquired PED Certificate

1-3. Company Overall View

Outside

Shop #1 (Welded Pipes)


Shop #2 (Seamless Pipes)

1-4. Organization


CEO

Managing Director

Production Dpt. QC Dpt. Management Dpt.

Domestic Sales Overseas Sales Research

Production Purchasing

Inspection Development

Accounting General Affairs

Sales Dpt.

Representative : Myung-Chol Kim

Founded Date : May 9, 2005

Number of Employees : Total 28 people

• Office : 6 people

• Engineer : 2 people

• Factory : 20 people

Capital(2010) : USD7,500,000

Sales Amount(2010) : USD12,500,000

Main Product : Welded Stainless Tube, Seamless Stainless Tube

Usage : Boiler, Heat Exchanger, Anti-corrosion & Heat-resistant Pipes,

Ordinary Piping, Sanitary Tubing, etc.

Certificate : ISO9001, PED, KS D 3577 & KS D 3595

1-5. Company Profile(1)


1-5. Company Profile(2)

050

100150200

2008 2009 2010 2011

130 130 140 200

Unit: 0.1 Million USD


Product Range Line Q’ty Capacity (Ton/Year)

Stainless Steel Tube for boiler & heat exchanger 3 2000

Stainless Steel Pipe for general piping 2 1200 Stainless Steel Seamless Tube 1 x 3 1400

Sales Growth

Production Capacity

Inspection Facilities : Universal Test Machine, Microscope, Hydrostatic Tester,

Eddy Current Tester & Vickers Hardness Tester

1-6. Main Customers

Domestic Customers

▶ Doosan Heavy Industries & Construction

▶ Doosan Mecatec

▶ Sungjin Geotec

▶ TSM Tech Co., Ltd.

▶ Hantec Engineering Co., Ltd.

▶ Woo Yang H.C Co., Ltd.

▶ Wonil T&I Co.,Ltd.

▶ Seoul Machinery Co.,Ltd.

▶ SEWON CELLONTECH Co., Ltd.

▶ SC Engineering

▶ JMC.

▶ DKT Co., Ltd.


Foreign Customers

▶ Mitsubishi Heavy Industries Ltd.(Japan)

▶ Mitsubishi Chemical Corp.(Japan)

▶ Jord International Pte. Ltd.(Australia)

▶ BHEL(India)

▶ Aban Air Cooler Co.(Iran)

▶ Aero Freeze System/GEA(Canada)

▶ Titan Metal Fabricators, Inc.(USA)

▶ Intercol S.A./CBI/Reficar(Colombia)

▶ Tasha Manufacturing Co.(Iran)

▶ Patkor Public Company Ltd.(Thailand)

2. PRODUCT INTRODUCTION


2-1. Main Products(1)

Steel Tube for Boiler & Heat Exchanger • Standard: ASTM A249, JIS G3463, KS D3577

• Material: 304(L), 316(L), 321, 310S, 317(L), 347,

Duplex(S31803,S32750), etc.

• Usage: Boiler, Superheater, Heat Exchanger,

Condenser, etc.

• Dimension & Tolerance ☞p.13~14


Seamless Tube

• Standard: ASTM A213

• Material: 304(L), 316(L), 321, 310S, 317(L), 347,

Duplex(S31803,S32750), etc.

• Usage: Boiler, Superheater, Heat Exchanger,

Condenser, etc.

Steel Pipe for Ordinary Tubing • Standard: ASTM A269, JIS G3448, KS D3595

• Material: 304(L), 316(L), 321, etc.

• Usage: Hot/Cold Water Supply, Drainage, etc.

• Dimension & Tolerance ☞p.17

2-1. Main Products(2)


Steel Pipe for Tubing • Standard: ASTM A312, JIS G3459, KS D3576

• Material: 304(L), 316(L), 321, etc.

• Usage: Anti-corrosion & Heat-resistant Pipes

for Oil & Gas Industries, Chemical Industries

as like Pulp, Paper, Textile, etc.

• Dimension & Tolerance ☞p.15~16

2-2. Production Process


Welded Tubes

Coil Forming Welding Bead Removing Sizing

Bright Annealing

Eddy Current Test Picking End

Facing Straightening

Re-sing Marking Inspection Packing

Mother Tube

Seamless Tubes

Pointing Cold Drawing Degreasing Cutting

Off-Line Heat Treatment

Marking

Eddy Current Test Picking End

Facing Straightening

Inspection Packing

Repeat

2-3. Dimension & Tolerance (ASTM A249 / JIS G3463 / KS D3577)

ASTM A249 / JIS G3463 / KS D3577

• Material : 304(L), 316(L), 321, 310S, 317(L), 347, Duplex(S31803,S32750)


W.T(mm) O.D(mm) 0.5 0.8 1.2 1.6 2 2.3 2.6 2.9

15.88

19.05

21.7

22.22

25.4

27.2

31.8

34

38.1

45

50.8


ASTM A249 / JIS G3463 / KS D3577


Specification Division KS D3577(JIS G3463) ASTM A249

Tolerance

Outer Diameter

D < 60 ±0.25 D < 25.4 25.4 ≤ D < 38.1 38.1 < D < 50.8 50.8 ≤ D < 63.5 63.5 ≤ D < 76.2 76.2 ≤ D ≤ 101.6

101.6 < D ≤ 190.5

±0.10 ±0.15 ±0.20 ±0.25 ±0.30 ±0.38

+0.38, -0.64

60 ≤ D < 80 ±0.30

80 ≤ D < 100 ±0.40

100 ≤ D < 120 +0.40 - 0.60

120 ≤ D < 160 +0.40 - 0.80

Wall Thickness

D < 40 t < 2 +0.4

- 0

All Size

±10% or

+18% -0

t ≥ 2 +20% - 0

D ≥ 40 All Thickness +22% - 0

Length

D ≤ 50 L ≤ 7000 +7.0

D < 50.8 D ≥ 50.8

+3.17 -0

+4.76 -0

L > 7000 +10.0

D > 50 L ≤ 7000 +10.0

L > 7000 +13.0

Straightness Shall be reasonably straight Under 0.8 / 914

Inside Bead Removal No removal Inside bead removal


ASTM A312 / JIS G3459 / KS D3576

• Material : 304(L), 316(L), 321


Nominal Size Outer Diameter

Nominal Wall Thickness(SCH)

5S 10S 20S 40S 80S

A B KS ASTM KS ASTM KS ASTM KS KS ASTM KS ASTM

8 1/4 13.8 13.72 1.2 - 1.65 1.65 2.0 2.2 2.24 - -

10 3/8 17.3 17.15 1.2 - 1.65 1.65 2.0 2.3 2.31 - -

15 1/2 21.7 21.34 1.65 1.65 2.1 2.11 2.5 2.8 2.77 3.7 3.73

20 3/4 27.2 26.67 1.65 1.65 2.1 2.11 2.5 2.9 2.87 3.9 3.91

25 1 34.0 33.4 1.65 1.65 2.8 2.77 3.0 3.4 3.38 4.5 4.55

32 1 1/4 42.7 42.16 1.65 1.65 2.8 2.77 3.0 3.6 3.56 4.9 4.85

40 1 1/2 48.6 48.26 1.65 1.65 2.8 2.77 3.0 3.7 3.68 5.1 5.08

50 2 60.5 60.33 1.65 1.65 2.8 2.77 3.5 3.9 3.91 5.5 5.54

65 2 1/2 76.3 73.03 2.1 2.11 3.0 3.05 3.5 5.2 5.16 - -

80 3 89.1 88.9 2.1 2.11 3.0 3.05 4.0 5.5 5.49 - -

90 3 1/2 101.6 101.6 2.1 2.11 3.0 3.05 4.0 5.7 5.74 - -

100 4 114.3 114.3 2.1 2.11 3.0 3.05 4.0 6.0 6.02 - -

(Unit : mm)


ASTM A312 / JIS G3459 / KS D3576


(Unit : mm)

Specification Division KS D3576(JIS G3459) ASTM A312

Tolerance

Outer Diameter

D < 30 ±0.30 10.29 ≤ D ≤ 48.26 +0.4 - 0.8

L ≥ 30 ±1%

48.26 < D ≤ 114.3 ±0.8

114.4 < D ≤ 219.08 +1.6 - 0.8

219.08 < D ≤ 406.4 +2.4 - 0.8

Wall Thickness

t < 2 ±0.20 All Size All Size

over -12.5% t ≥ 2 ±10%

Length Longer than the specified length All Size +6.4 - 0.0

Straightness Shall be practically straight Shall be practically straight


ASTM A 269 / JIS G 3448 / KS D 3595 • Material: 304(L), 316(L), 321


Nominal Diameter

Outer Diameter (mm) Wall Thickness (mm) Weight (kg/m)

Size Tolerance Size Tolerance STS304TPD STS316TPD

13 SU 15.88

0 -0.37

0.8

±0.12

0.301 0.302

20 SU 22.22 1.0 0.529 0.532

25 SU 28.58 1.0 0.687 0.691

30 SU 34.00 ±0.34 1.2 0.980 0.987

40 SU 42.70 ±0.43 1.2 1.240 1.250

50 SU 48.60 ±0.49 1.2 1.420 1.430

60 SU 60.50 ±0.60 1.5 ±0.15 2.200 2.220

2-6. Manufacturing Facilities (List)

Line (Process)

Descrption Q’ty Capacity Origin

WELDED

PIPES

Forming M/C 5 O.D : 13.8mm ~ 60.5mm Welded Speed : 2M/Min ~ 4M/Max

KOREA

Non-oxidized heat treatment furnace

(ON-LINE) 2 O.D : 13.8mm ~ 60.3mm KOREA

Straightnning M/C 4 O.D : 13.8mm ~ 60.5mm Voltage : 50kw ~ 100kw

KOREA

Auto Cutting & End Facing M/C 1 O.D : 13.8mm ~ 114.3mm KOREA

Auto End Facing M/C 1 O.D : 13.8mm ~ 60.5mm KOREA

Marking M/C 1 O.D : 13.8mm ~ 60.5mm LENGTH : 20M

FRANCE

Manual Cutter 4 O.D : 13.8mm ~ 60.5mm LENGTH : 7M

U.S.A

SEAMLESS PIPES

Drawing M/C 1 X 3 O.D : 13.8mm ~ 60.5mm KOREA

Oxidized heat Treatment furnace

(OFF-LINE) 1 O.D : 13.8mm ~ 216.3mm KOREA


2-4. Manufacturing Facilities (Photo)

Forming M/C

Auto Cutting & End Facing M/C Straightening M/C

Bright annealing furnace


2-6. Manufacturing Facilities (Photo)

Marking M/C

Heat Treatment furnace Drawing M/C

Cutting M/C


2-7. Testing Facilities (List)

Description Q’ty Availability Origin

Universal Test Machine 1 60 Ton KOREA

Microscope Tester 1 X50 ~ x500 KOREA

Eddy Current Tester 1 O.D.: 13.8mm ~ 60.5mm FRANCE

Hydrostatic Tester 1 Max. 200kg/㎠ KOREA

Vickers Hardness Tester 1 Max. 1HV KOREA

Mounting Press 1 - KOREA

Grinding Polisher 1 - KOREA

Belt Grinder 1 - KOREA

Precision cutting machine 1 - KOREA

Micro Meter 9 0 ~ 25mm JAPAN



Vernier Calipers 3 0 ~ 150mm JAPAN

Vernier Calipers 1 0 ~ 300mm JAPAN


Universal Test Machine Micro Scope Tester

Eddy Current Tester Hydrostatic Tester

2-7. Testing Facilities (Photo)


Vickers Hardness Tester Mounting Press

Grinding Polisher Precision Cutting Machine

2-7. Testing Facilities (Photo)


2-8. Details of Each Facility

Description Specification Origin

Heat Treatment Furnace

Non-oxidized Heat Treatment Furnace

1. Type : Annealing 2. Heat source : Electricity 3. Size range : O.D 15.88mm ~ 60.5mm 4. Quenching method : Rapidly cooled by carbon 5. Max. frequency : 100kHz 6. Max. Temp. : 1500 ℃

KOREA

Oxidized Heat Treatment Furnace

1. Type : Annealing 2. Heat source : LPG Gas 3. Size range : O.D 250mm Max. 4. Quenching method : Rapidly cooled by water 5. Max. Temp. : 1400 ℃

KOREA

Hydro Tester 1. Max. pressure : 20 Mpa 2. Size range : O.D 15.88mm ~ 38.10mm 3. Max. Length : 4M ~ 18M

KOREA

Eddy Current Tester

1. Max. pressure : 20 Mpa 2. Size range : O.D 12.70mm ~ 88.90mm 3. Max. Length : 24M Max. 4. Model name : CMS

FRANCE


2-9. Packing & Storage


Carton Box Wooden Box Carton Skid Box

Steel Bend Square Wooden Bend

3. Q.C MANUAL


4-1. Quality Management System

Customer

Procurement Control Process

Inspection Control Process

Supply Chain Management Process Data

Collection & Analysis

Order Control Process

Production Control Process (Tube Drawing)

Delivery Control Process

Payment Collecting Control Process

Customer’s Claim Control Process Running

Suggestion System

Daily Plant Operation

Status Report

Monthly Closing Report

Operation of Business Plan / Management Policy & Target Management

Continuous Im

provement A

ctivity

Select Theme Survey as-is, cause Setting Target Plan/Do Actions Effect Analysis Standardization

/Management

Self-improvement Activity

Review Total Status Report

IN PUT

OUT PUT


4-2. Quality Management Process

Step

Process Map

Customer Supervised Under Co-operation with

Manager Contents of Activities Marketing Department Q.C, Production

1 Receiving and distribution of ROQ

2 Review ROQ

3 Prepare Draft Quotation (Including Delivery, Payment, Packing, and Heat Treatment Method)

4 Prepare Quotation (Delivery, Payment Terms, Packing, Heat Treatment Method, Effective Period)

5 Review Quotation

6 Send Quotation – Achieve Customer’s Approval

7 Receive Customer’s Order, Distribute to Managers

8 Based on Roll margin and Sales data, prepare Sales Performance Report to Managers

Customer Order Receive/Distribute ROQ

Review Order

Prepare Draft Quotation

Prepare/ Distribute Quotation

Send Quotation

Receive/Distribute Order

Review Quotation

Customer Approval

Analysis of Sales Performance

Report

Production Control

Order Control Process



Step

Process Map


Managers Contents of Activities Production Dept. QC, Marketing, Admin.

1 Receive and register Customer Order from Marketing.

2 Record Customer, Volume, Delivery, Material, Specification, etc.

3 Check raw material and stock, and request purchase of shortage materials.

4 Prepare/adjust/distribute monthly production plan based on status of delivery and raw materials.

5 Prepare/adjust/distribute weekly tubing plan by each machine based on inventory and incoming schedule of raw materials.

6 Check and adjust inventory and incoming schedule of raw materials.

7 After checking details of customer order (MFG. Spec., Steel Spec., QTY, Delivery, and Packing method), issue work order.

8 Control production according to MFG. Spec., and keep recording of production performance and process inspection report.

9 Make sure to manufacture according to manufacturing specification of work order.

10 Check packing method and QTY, and attach tag.

Receive Customer Order

Arrange Delivery

Issue Work Order (Tubing, Back-process)

Tubing Process Inspection Control

Production Control Process

Order Control

Check Inventory

Check incoming schedule /inventory of materials

Prepare/Adjust Weekly Production Plan

Prepare/Adjust Monthly Production Plan

Procurement Control

Back-Process

Labelling

Equip. Control



Step

Process Map


Managers Contents of Activities Production Dept. QC, Marketing, Admin.

11 After checking steel model, order QTY, packing method, MFG Spec., etc, and prepare product inspection report.

12 Store finished products at stacking area, and make delivery to customers by delivery schedule.

13 Collect recording data, and make analysis of yield ratio, Operation ratio, Production Performance ratio, etc, and report to managers.

Analysis of production performance

Stack/Store Products

Check production performance

Delivery Control

Report



Step

Process Map


Managers Contents of Activities Marketing Dept. Q.C, Production

1 Check customer order after completion of production. (Delivery and conforming of requirements)

2 Notice to /Discuss with customer about delivery plan.

3 Receive customer’s delivery request. (Reflection of Verbal or contents of customer order)

4 Delivery Order

5 Loading of Products

6 Prepare Invoice and record name of staff responsible for delivery to designated customer.

7 Check Delivery

8 Receive customer-confirmed invoice.

9 Perform analysis of delivery based on delivery conforming ratio data, and report to managers.

Check Customer Order

Notice to /Discuss with customer

Issue Invoice

Check Delivery

Collecting Control

Delivery Control Process

Loading Products

Delivery Order

Receive Invoice

Analysis of Delivery

Production/Inspection Record

Procurement Control

Customer

Receive Delivery Request

Report



Step

Process Map



1 Receive customer claim thru wire. mail, and fax.

2 Report customer claim to production/QC department.

3 Check Claimed defect, and if claim is not defect, discuss with customer, and record to customer master book.

4 Start survey of customer claim details.

5 Meeting with production and QC to find corrective actions based on survey report.

6 Check defect sample for customer claim

7 Start to find root cause of defect after checking defect sample.

8 If defect is found to be not from our responsibility out of root cause survey report, discuss with customer.

9 If defect is from our responsibility, visit customer to discuss and explain our prior actions.

10 Perform quick corrective actions discussed with customer.

Receive Customer Claim

Report Customer Claim

Survey root cause

Customer Claim Control Process

Check Inventory

Check received defect

Meeting for counter-measure

Survey claim contents

Action first, and then discuss with customer

Perform discussed actions

Wire /Mail Customer Claim

Customer Master Book

Our responsibility Discuss with Customer

Corrective action



Step

Process Map



11 Report discussions with customer to production

12 Collect recorded Data, and perform analysis of customer defect ratio and quality cost, etc, and report to managers.

Analysis of customer claim

Report

Report to production



Step

Process Map


Managers Contents of Activities Production Dept. Q.C, Marketing

1 Prepare raw material procurement plan after checking inventory of raw materials and finished goods according to monthly production plan.

2 Check steel model, thickness, width, and QTY, and send ROQ to supplier.

3 Receive quotations from each suppliers, and check delivery and price.

4 Arrange and confirm delivery and cost for each suppliers.

5 After confirming final delivery and price for each suppliers, prepare Purchase Order.

6 Get approval of Purchase Order from President.

7 Send Purchase Order to selected supplier, and confirm receipt.

8 Control raw material incoming schedule by Production Plan and Purchase Order.

9 Check if incoming material conforms Purchase Order for QTY, Steel Model, Thickness, Width, and Product Inspection Report.

10 Collect recorded data, and perform analysis of incoming schedule conforming ratio, and report to managers.

Calculate procurement volume

Prepare /Send ROQ

Send /Confirm Purchase Order

Incoming Progress Control

Inspection Control

Procurement Control Process

Receive quotation

Approval

Prepare Purchase Order

Review quotation

Incoming

Analysis of Procurement

Check inventory of raw material

Supplier

Supplier

Production Control

Report



Step

Process Map


Managers Contents of Activities Q.C Production Dept.

1 Check incoming date and QTY for raw materials.

2 Check Invoice and inspection report whenever raw material incoming arrives.

3 Before receipt of raw material, perform incoming inspection. (Weight, dimension)

4 If incoming inspection finds defects, send notice to supplier.

5 Check defects with supplier, and if no good to input, make decision to return with agreement of supplier.

6 Perform In-process inspection during Tubing /Back-process. (Dimension, inner/outer surface)

7 Search defect trend for defects found during in-process inspection.

8 Make decision if defect can be repaired.

9 Store and identify defect goods.

10 Perform re-inspection

Check Purchase Order

Search defect trend

Pass/No-Good

Production Control

Inspection Control Process

Incoming Inspection

Tubing /back-process Inspection

Check products

Prepare /Notice to return notice with return causes.

Store /Identify

Re-inspection

Incoming Info.

Report

Supply Chain Control

Procurement Control



Step

Process Map


Managers Contents of Activities Q. C. Production Dept.

11 Send repaired defect to final inspection, and send non-repairable defect to disposal.

12 Perform final inspection before product dispatch. (Dimension, mechanical properties)

13 Defects in final inspection shall be disposed.

14 Collect recorded data, and perform analysis of in-process defect ratio, finished good defect ratio, and in-house quality cost, etc, and report to managers.

Repair /Disposal

Final Inspection

Delivery Control

Disposal

Analysis of Inspection result

Report

Inspection Control



Step

Process Map


Managers Contents of Activities Production dept. Q.C, Marketing

1 Arrange incoming schedule with production completion schedule of out-sourcing supplier.

2 Check logistics plan of completed out-sourcing products.

3 Delivery Order to out-sourcing supplier.

4 Loading of out-sourcing product.

5 Check dimension and QTY before delivery.

6 Issue Invoice.

7 Supply out-sourcing product to supplier.

8 Check incoming schedule of out-sourcing product thru wire.

9 Incoming of out-sourcing product.

10 Upon incoming of out-sourcing product, perform incoming inspection by QC inspector.

Control Supplier Order for back- Process request

Issue Invoice

Supply Chain Control Process

Logistics Plan

Check Delivery

Loading

Delivery Order

Supply to out-sourcing

Control incoming progress

Receive Invoice

Incoming

Incoming Inspection



Step

Process Map


Managers Contents of Activities Production dept. Q.C, Marketing

11 Input inspected out-sourcing product to in-process of production.

12 Perform analysis of incoming schedule conforming ratio, pass-ratio, etc, and report to managers.

Analysis of out-sourcing

Report

Input to in-process


4-3. Quality Control Plan

Manufacturing Process Control Items and Quality Characteristics Controlling

Control Items Check Point Methods Number of Test

1. Material Receiving

2. Incoming Inspection 1) Mill Certificate Review 2) Dimension &Surface

1) Measuring by micrometer 2) Visual Inspection Each heat

3. Welding 1) Soundness of weld 1) Welding Speed 2) Welding voltage and current 3) Gas quantity

Manufacturing standard At any time

4. Removal of weld beads Dimension and surface

1) Condition of the outside and inside weld beads. 2) Outside diameter, thickness

1) Visual inspection 2) Measuring by micrometer At any time

5. Bright annealing Homogeneity of the weld and heat affected zone

1) Annealing temperature 2) Hold time Manufacturing standard At any time

6. Straightening Dimension Straightness Manufacturing standard and Visual inspection Every working turn

7. Cutting Dimension Length 1) Measuring by tape measure At any time

8. End facing Dimension Bevel angle Manufacturing standard Every working turn

9. Eddy current test Soundness of the tube 1) Frequency 2) Sensitivity 3) Phase 4) Search coil

Manufacturing standard and specification Each tube

10. Final inspection 1) Dimension 2) Mechanical properties

1) Outside diameter, thickness, length 2) Tensile test 3) Hardness test 4) Other test

1) Measuring by micrometer and tape measure 2) Measuring by related spec.

Each lot

11. Packing 1) Packing state 2) Shipping mark Manufacturing standard

Welded tube & pipe


4-3. Quality Control Plan

Manufacturing Process Control Items and Quality Characteristics Controlling

Control Items Check Point Methods Number of Test

1. Material Receiving

2. Incoming Inspection 1) Mill Certificate Review 2) Dimension &Surface

1) Measuring by micrometer 2) Visual Inspection Each heat

3. Drawing 1) Reduction ratio 2) Dies & Plug 3) Dimension

1) Drawing Speed 2) Outside, thickness 3) Surface

1) Manufacturing standard 2) Measuring by micrometer 3) Visual Inspection

At any time

4. Annealing Homogeneity of the heat affected zone

1) Annealing temperature 2) Hold time Manufacturing standard At any time

5. Straightening Dimension Straightness Manufacturing standard and Visual inspection Every working turn

6. Cutting Dimension Length 1) Measuring by tape measure At any time

7. End facing Dimension Bevel angle Manufacturing standard Every working turn

8. Pickling Surface Visual Inspection At any time

9. Eddy current test Soundness of the tube 1) Frequency 2) Sensitivity 3) Phase 4) Search coil

Manufacturing standard and specification Each tube

10. Final inspection 1) Dimension 2) Mechanical properties

1) Outside diameter, thickness, length 2) Tensile test 3) Hardness test 4) Other test

1) Measuring by micrometer and tape measure 2) Measuring by related spec.

Each lot

11. Packing 1) Packing state 2) Shipping mark Manufacturing standard

Seamless tube & pipe


4. CERTIFICATES


5. Certificates


ISO 9001 CE PED

5. Certificates


KS D3577 KS D3595

5. MAJOR SUPPLY RECORD


5. Major Supply Record

Year Plant/Project Name Customer Material Q’ty(Ton)

2006. 09. ATRHIT PLATIFORM PHASEⅡ JORD International PTY.LTD ASTM A249 TP304 53.3

2007. 03. SAMYANG Corporation HANTEC Eng. ASTM A249 TP304 42.8

2007. 03. KOLON E&C DAESUNG STAINLESS ASTM A249 TP304 25

2007. 05. PARAXYLENE REVAMP Project JORD International PTY.LTD ASTM A249 TP304 53.3

2007. 11. MITSUBISHI Heavy Industries DONGHWA ENTEC ASTM A249 TP316L 22

2007. 11. HYUNDAI Eng WOOYANG HC ASME SA249 TP316L 120.3

2008. 01. OXIDATION REACTOR CONDENSOR TSM TECH ASME SA249 TP316L 35.2

2008. 01. MITSUBISHI Chemical Corp. TAEBANG ASTM A249 TP304 19.2

2008. 03. PUERTO CORONEL SUNGJIN GEOTEC ASME SA249 TP304 24

2008. 03. DESALINATION EVAPORATOR SUNGJIN GEOTEC ASTM A249 TP304 21.2

2008. 04. LNG RECEIVING PROJECT WONIL T&I ASTM A249 TP304 16.7




2008. 04. LNG RECEIVING PROJECT WONIL T&I ASME SA249 TP316L 45

2008. 05. DC Chemical UNIWEL ASTM A249 TP304 23

2008. 05. KAVIAN PROJECT FATEH SANAT KIMIA ASTM A213 TP316L 113.9

2008. 05. BETARA GAS DEVELOPMENT PJT JORD International PTY.LTD ASTM A249 TP304 112

2008. 06. TAWEEELAH A10 POWER PJT SEWON CELLONTECH ASTM A249 TP316L 19.5

2008. 06. INCHEON LNG FIN TUBE TEC ASME SA249 TP316L 28

2008. 06. DC Chemical KDM TECH ASME SA249 TP316L 26.2

2008. 06. MITSUBISHI Chemical Corp. DONGHWA ENTEC ASTM A249 TP304 29

2008. 07. GLOBAL SUPPLIES (UAE) FZE SUNGJIN GEOTEC ASTM A249 TP316L 27

2008. 07. DONGNAM ELECTRIC POWER STATION MYCOMKOREA ASTM A213 TP304 29.1

2008. 07. DCC P2 PROJECT SEJIN SPECIAL STEEL ASTM A213 TP316L 20.9




2008. 07. BECHTERL-JACOBS SUNGJIN GEOTEC ASTM A249 TP304 5.4

2008. 09. LNG PROJECT TSM TECH ASTM A213 TP316L 17.3

2008. 09. DCC P2 PROJECT DONGIL TECH ASTM A249 TP304 41.3

2008. 09. MITSUBISHI Heavy Industries SPC ASTM A249 TP316L 17

2008. 10. SODIF DONGIL TECH ASME SA249 TP316L 22

2008. 10. KL-GUMI-004 HANMO CORP. ASME SA249 TP316L 45

2008. 10. MVR THICKENING HANTEC ENG. ASTM A249 TP304 60.2

2008. 11. SIPCO CCPP PROJECT TSM TECH ASTM A249 TP316L 31

2008. 11. AL – 17BT – L(CHILE) SPICO ASTM A249 TP304L 53.3

2008. 07. POSCO E&C HANTEC ENG. ASTM A213 TP304 42.8

2009. 01. HYUANDAI ENG TSM TECH ASTM A249 TP316L 25




2009. 01. MA’ADEN PROJECT DAEDONG ENTEC ASTM A249 TP304 0.9

2009. 01. DAEWOO ENG SUNJIN METALEX ASTM A213 TP304L 22

2009. 01. QAFCO-FACIATIES KORINOX ASME SA249 TP316L 120.3

2009. 01. JUBAIL EXPORT REFINERY KORINOX ASTM A249 TP304 35.2

2009. 03. GP PROJECT TSM TECH ASTM A249 TP304 19.2

2009. 03. JMC SUNGDONG STAINLESS ASTM A249 TP304 6

2009. 03. GRAND STEAM CONDENSER TSM TECH ASTM A249 TP304 7

2009. 04. CHILE ANGAMOD HFO SUCTION HEATER KPHE ASTM A688 TP304 2.5

2009. 05. BANG GWANG IND. SUNGDONG STAINLESS ASTM A249 TP304L 130

2009. 06. K2 PROJECT TSM TECH ASTM A249 TP316L 10.5

2009. 07. KAVIAN PROJECT FATEH SANAT KIMIA ASTM A213 TP316L 101.3





2009.12. AERO FEEZE SYSTEM NEXGEN METAL INC. ASTM A249 TP304L 70.6

2010. 05. NATIONAL IRANIAN OIL COMPANY TASHA MFG. ASTM A249 TP316L 27.7

2010. 07. PATKOL SUNJIN METALEX ASTM A249 TP304 136

2010. 07. AERO FEEZE SYSTEM NEXGEN METAL INC. ASTM A249 TP304L 52.3

2010. 11. HACCOGEN MACKAY SUGAR PLANT TSM TECH ASME SA249 TP304 12

2010. 11. CARTAGENA REFINERY EXPANSION REFICAR/CBI /INTERCOL S.A.

ASME SA249 TP317L/304 188.7

2011. 01. - ABAN AIR COOLER CO. ASTM A213 TP316L 269.8

2011. 01. GASTECH PROJECT TASHA MANUFACTURING ASME SA213 TP316L 42.3

2011. 09. DAELIM / POCHEON LNG TSM TECH CO.,LTD. ASME SA249 TP304 205.8

2011. 12. HYUNDAI ENGINEERING / UCHI2 TSM TECH CO.,LTD. ASME SA249 TP316L 64.7

2012. 01. TPSC KERAMASAN TSM TECH CO.,LTD. ASME SA249 TP316L 10.8




2012.01 TOSHIBA / EASAR SALAYA TSM TECH CO., LTD. ASME SA688 TP304 1.4

2012.01 WESTINGHOUSE / AP1000 ME2A SCANA2&3 & VOGTLE 3&4 TSM TECH CO., LTD. ASME SA688 TP304 16.5

Thank You.

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