Production Process

Production Process of Stainless Steel Seamless Pipe

Process Control
A: Self-inspection & Intercross Check
B: Pre-inspection for semi-finished Pipes
C: Mechanical Test after heat treatment
D: Auto Controlled Heat Treatment Furnace-stable & Pollution-prevented

Raw Material Bars - Production Process

Raw Material: Bars

 left - Production Process
Chemical Analysis - Production Process

Chemical-Analysis

left - Production Process 
Peeled Cutting - Production Process

Peeled&Cutting

        down - Production Process 
Inspection - Production Process

Inspection

  right - Production Process 
Hot Piercing - Production Process

Hot-Piercing

 right - Production Process
Heating - Production Process

Heating

 down - Production Process      

Cold Pilgering - Production ProcessCold-Pilgering

 left - Production Process
Cold Drawning - Production ProcessCold Drawning

left - Production Process 
Solution Annealed - Production Process

Solution-Annealed

         down - Production Process
Pickling - Production Process

Pickling

 right - Production Process

Pipe For Inspection - Production ProcessPipe For Inspection

 right - Production Process
Straightening - Production Process

Straightening

 down - Production Process        
Final Cutting - Production Process

Final Cutting

  Quality Control
A: Raw Material: Pipe billet after Hot Piercing

B: Inspection: Chemical Composition
; Dimension Measurement; Outer & Inside Surface Vision
 down - Production Process        
Spectrograph Testing Surface Inspection Inside Inspection OD Meansurement
 Spectrograph Testing - Production Process  Surface Inspection - Production Process  Inside Inspection - Production Process  OD Meansurement - Production Process
WT Measurement Length Measurement Hydrostatic Testing Ultrosonic Testing
 WT Measurement - Production Process  Length Measurement - Production Process  Hydrostatic Testing - Production Process  Ultrosonic Testing - Production Process
Eddycurrent Testing Intergranularcorrosion Metallographic Testing Hardness Testing
 Eddycurrent Testing - Production Process  Intergranularcorrosion - Production Process  Metallographic Testing - Production Process  Hardness Testing - Production Process
Mechanical Property Chemical Analysis Printing Marks Bundle Packing
 Mechanical Property - Production Process  Chemical Analysis 1 - Production Process  Printing Marks - Production Process  Bundle Packing - Production Process
Wooden Packing Loading    
 Wooden Packing - Production Process  Loading - Production Process    

Inspection for Finished Products
A: Dimension Measurement

B: Outer & Inner Surface Inspection
C: Chemical Composition: Chemical Ana
lysis; Portable Spectrometer

D: Mechanical Properties: Flattening, Flaring, Hardness; Tensile Strength
E: Non-destructive Test: Eddy Current Test; Ultrasonic Testing;
F: Corrosion Test: Intergranular Corrosion Test; Pit Corrosion Test

G: Hydrostatic Test

H: Grain Size Test


MATERIAL REFERENCE LIST

MATERIAL

PIPES

WROUGHT FITTINGS

FORGING

PLATE

CASTING

TRADE NAME

Stainless steel&Super Stainless

A312 TP304

A403 WP304

A182 F304

A240 gr. 304

A351 CF8

304

A312 TP304L

A403 WP304L

A182 F304L

A240 gr. 304L

A351 CF3

304L

A312 TP310S

A403 WP310S

A182 F310S

A240 gr. 310S

A351 CK20

310

A312 TP316

A403 WP316

A182 F316

A240 gr. 316

A351 CF8M

316

A312 TP316L

A403 WP316L

A182 F316L

A240 gr. 316L

A351 CF3M

316L

A312 TP316Ti

A403 WP316Ti

A182 F316Ti

A240 gr. 316Ti

 

316Ti

A312 TP317L

A403 WP317L

A182 F317L

A240 gr. 317L

A351 CG8M

317

A312 TP321

A403 WP321

A182 F321

A240 gr. 321

 

321

A312 TP347

A403 WP347

A182 F347

A240 gr. 347

A351 CF8C

347

A312 S31254

A403 S31254

A182 F44

A240 S31254

A351 CK3MCuN

254 SMO

Duplex steel

A790 S31803

A815 S31803

A182 F51

A240 S31803

A890 Gr.4A

SAF2205

A790 S32304

A815 S32304

 

A240 S33304

 

SAF2304

A790 S32750

A815 S32750

A182 F53

A240 S32750

A890 Gr 5A

SAF2507

A790 S32760

A815 S32760

A182 F55

A240 S32760

A890 Gr 6A

 

Special alloy

B677/674 N08904

B366 WP904L

B459 N08904

B649 N08904

 

904L

B729/464 N08020

B366 WP20CB

B462 N08020

B463 N08020

A351 CN7M

Alloy 20

B161 N02200

B366  WPN

B564 N02200

B162 N02208

 

Nickel 200

B161 N02201

B366  WPNL

B160 N02201

B162 N02201

 

Nickel 201

B165 N04400

B366  WPNC

B564 N04400

B127 N04400

A494 M35-1

Monel 400

B407 N08800

B366  WPNIC

B564 N08800

B409 N08800

 

Incoly 800

B423 N08825

B366  WPNICMC

B564 N08825

B424 N08825

A494 CU5MCuC

Incoly 825

B167 N06600

B366  WPNCI

B564 N06600

B168 N06600

A494 CY40

Inconel 600

B444 N06625

B366  WPNCMC

B564 N06625

B443 N06625

A494 CW6MC

Inconel 625

B622 N10276

B366 WPHC276

B564 N10276

B575 N10276

 

Hastelloy C276

B622 N06455

B366  WPHC4

B564 N06455

B575 N06455

A494 CW2M

Hastelloy C4

B622 N06022

B366  WPHC22

B564 N06022

B575 N06022

A494 CX2MW

Hastelloy C22

B622 N10665

B366  WPN\HB-2

B564 N10665

B333 N10665

A494 N7M

Hastelloy B2

Carbon steel

A106 Gr.B

S234 WPB

A105/N

A515 Gr65

A216 WCB

 

Low temp. service

A333 Gr.3

A420 WPL3

A350 LF3

A516 Gr.70

A352 gr. LC3

 

A333 Gr.6

A420 WPL6

A350 LF2

A516 Gr.65

A352 gr. LCB

 

High temp. service (Chrome-Moly Alloy)

A335 P1

A234 WP1

A182 F1

A204 gr B

A217 gr.B

 

A335 P5

A234 WP5

A182 F5

A387 gr.5

A217 gr. C5

 

A335 P9

A234 WP9

A182 F9

A387 gr.9

A217 gr.C12

 

A335 P11

A234 WP11

A 182 F11

A387 gr.11

A217 gr.WC6

 

A335 P22

A234 WP22

A182 F22

A387 gr.22

A217 gr.WC9

 

A335 P91

A234 WP91

A182 F91

A387 gr.91

A217 gr.WC12

 

Line pipe material (High Yield)

API 5L B

A234 WPB

A105/N

 

 

 

API 5L X42

A860 WPHY42

A694 F42

 

 

 

API 5L X46

A860 WPHY46

A694 F46

 

 

 

API 5L X52

A860 WPHY52

A694 F52

 

 

 

API 5L X60

A860 WPHY60

A694 F60

 

 

 

API 5L X65

A860 WPHY65

A694 F65

 

 

 

API 5L X70

A860 WPH70

A694 F70

 

 

Comments:

1–The list is for reference only. Pls make a final confirming before order.

2–If your material is not in this list, pls contact Yaang without any hesitate.

Your Name: *

Your Email: *

Subject:

Your Message: *