Company Details
  • Torich International Co.,Ltd--The Steel Tube Maker

  •  [Zhejiang,China]
  • Business Type:Distributor/Wholesaler , Manufacturer , Service , Trade Company
  • Main Mark: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
  • Exporter:31% - 40%
  • Certs:GB, ISO9001, ISO14001
  • Description:GB/T14976 Stainless Steel Pipes,Steel Pipes for Fliuid Transport,Seamless Stainless Steel Pipe
Torich International Co.,Ltd--The Steel Tube Maker GB/T14976 Stainless Steel Pipes,Steel Pipes for Fliuid Transport,Seamless Stainless Steel Pipe
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Seamless Stainless Steel pipes for fliuid transport

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    Incoterm: FOB,CFR,CIF,FCA,CPT
    Min. Order: 0.5 Ton
    Delivery Time: 35 Days

Basic Info

Model No.: GB/T14976

Type: Seamless

Certification: API, CE, BSI, UL

Application: Fluid Pipe

Section Shape: Round

Surface Treatment: Polished

Usage: Construction & Decoration

Technique: Hot Rolled

Material: Stainless Steel, 200 Series/300 Series/400series

Product Name: ASTM A269 A312 Seamless Stainless Steel Pipes For Fliuid Transport

Shape: Round Section

Grade: 201/202/304 /304L/316/316L321/310s/410/420/430/440/439ect

Surface: Pickling

Finish: Heat Treatment

Length: Customers' Request

OD: 3-420mm

Additional Info

Packaging: packing in wooden boxes or in hexagonal bundles

Productivity: 20000 Tons per Year

Brand: Torich

Transportation: Ocean,Land,Air

Place of Origin: Zhejiang, China (Mainland)

Supply Ability: 60000 Ton per year

Certificate: ISO9001:2008 ISO14001:2008, TS16949, CE PED, TUV, API

HS Code: 7306301100

Port: Shanghai,Ningbo

Product Description

China Stainless Steel Tube manufacturers, our Stainless Steel Exhaust Tube, Welded Steel Tube, Round Stainless Steel Pipe, Polish Stainless Steel Tube, Stainless Coiled Tube, Duplex Stainless Steel Tube are good in quality and competitive in price.


Product Name:TORICH GB/T14976 ASTM A269 A312 Seamless Stainless Steel pipes for fliuid transport

Standard: GB/T14976 ASTM A269 A312

OD: 3-420mm

WT: 0.5-50mm

Length: 1-12m or according to customers' actual application and production.

Application:for fliuid transport

Steel Grade:201/202/304 /304L/316/316L321/310s/410/420/430/440/439ect

Technology:Cold Rolled Hot Rolled Cold Drawn

Characteristic:

Good concentricity

Good surface quality

Good OD and ID tolerance

High Precision

Stable quality

Smooth Roughness

TORICH QUALITY ASSURANCE

Table 1 The Tolerance of Outer Diameter and Wall Thickness Unit:mm

Hot rolling(extrusion,expansion) steel tube

Cold drawn(rolling)steel tube

Diamension

Tolerance

Diamension

Tolerance

Ordinary Grade PA

High Grade PC

Ordinary Grade PA

High Grade PC

Nominal Outer Diameter

D

68~159

±1.25%D

±1%D

Nominal Outer Diameter

D

6~10

±0.20

±0.15

10~30

±0.30

±0.20

30~50

±0.40

±0.30

50~219

±0.85%D

±0.75%D

159

±1.5%D

219

±0.9%D

±0.8%D

Nominal Wall Thickness

S

15

+15%S

-12.5%S

±12.5%S

Nominal Wall Thickness

S

3

±12%S

±10%S

15

+20%S

-15%S

3

+12.5%S

-10%S

±10%S

Table2 The Tolerance of Minimum Wall Thickness Unit:mm

Manufacturing Method

Diamension

Tolerance

Ordinary Grade PA

High Grade PC

Hot rolling(extrusion,expansion) steel tube

W-H

Smin15

+25%Smin

0

+22.5%Smin

0

Smin15

+32.5%Smin

0

Cold drawn(rolling)steel tube

W-C

All Wall Tickness

+22%Smin

0

+20%Smin

0


Table 3 Grade and Chemical Component

No.

GB/T 20878

Grade

Chemical Component(Quality Fraction)/%

No.

Unified Digital Code

C

Si

Mn

P

S

Ni

Cr

Mo

Cu

N

Others

1

13

S30210

12Cr18Ni9

0.15

1.00

2.00

0.035

0.030

8.00~10.00

17.00~19.00

-

-

0.10

-

2

17

S30408

06Cr19Ni10

0.08

1.00

2.00

0.035

0.030

8.00~11.00

18.00~20.00

-

-

-

-

3

18

S30403

022Cr19Ni10

0.030

1.00

2.00

0.035

0.030

8.00~12.00

18.00~20.00

-

-

-

-

4

23

S30458

06Cr19Ni10N

0.08

1.00

2.00

0.035

0.030

8.00~11.00

18.00~20.00

-

-

0.10~0.16

-

5

24

S30478

06Cr19Ni9NbN

0.030

1.00

2.50

0.035

0.030

7.50~10.50

18.00~20.00

-

-

0.15~0.30

Nb:0.15

6

25

S30453

022Cr19Ni10N

0.08

1.00

2.00

0.035

0.030

8.00~11.00

18.00~20.00

-

-

0.10~0.16

-

7

32

S30908

06Cr23Ni13

0.030

1.00

2.00

0.035

0.030

12.00~15.00

22.00~24.00

-

-

-

-

8

35

S31008

06Cr25Ni20

0.08

1.50

2.00

0.035

0.030

19.00~22.00

24.0~26.00

-

-

-

-

9

38

S31608

06Cr17Ni12Mo2

0.08

1.00

2.00

0.035

0.030

10.00~14.00

16.00~18.00

2.00~3.00

-

-

-

10

39

S31603

022Cr17Ni12Mo2

0.030

1.00

2.00

0.035

0.030

10.00~14.00

16.00~18.00

2.00~3.00

-

-

-

11

40

S31609

07Cr17Ni12Mo2

0.04~0.10

1.00

2.00

0.035

0.030

10.00~14.00

16.00~18.00

2.00~3.00

-

-

-

12

41

S31668

06Cr17Ni12Mo2Ti

0.08

1.00

2.00

0.035

0.030

10.00~14.00

16.00~18.00

2.00~3.00

-

-

Ti:5C~0.70


Table 4 Recommended Heat Treatment System.Steel Tube Mechanical Properties and Density

Organization type

No.

GB/T 20878

Grade

Recommended Heat Treatment System

Mechanical Properties

Density

ρ/(kg/dm2)

No.

Unified digital code

Tensile strength

Rm/MPa

Specified plastic elongation strength

Rp0.2/MPa

Percentage elongation after fracture

A/%

Not less than

Austenitic

1

13

S30210

12Cr18Ni9

1010~1150,cold or otherwise

520

205

35

7.93

2

17

S30408

06Cr19Ni10

1010~1150,cold or otherwise

520

205

35

7.93

3

18

S30403

022Cr19Ni10

1010~1150,cold or otherwise

480

175

35

7.90

4

23

S30458

06Cr19Ni10N

1010~1150,cold or otherwise

550

275

35

7.93

5

24

S30478

06Cr19Ni9NbN

1010~1150,cold or otherwise

685

345

35

7.98

6

25

S30453

022Cr19Ni10N

1010~1150,cold or otherwise

550

245

40

7.93

7

32

S30908

06Cr23Ni13

1010~1150,cold or otherwise

520

205

40

7.98

8

35

S31008

06Cr25Ni20

1010~1150,cold or otherwise

520

205

40

7.98

9

38

S31608

06Cr17Ni12Mo2

1010~1150,cold or otherwise

520

205

35

8.00

10

39

S31603

022Cr17Ni12Mo2

1010~1150,cold or otherwise

480

175

35

8.00

11

40

S31609

07Cr17Ni12Mo2

1040,cold or otherwise

515

205

35

7.98

12

41

S31668

06Cr17Ni12Mo2Ti

1000~1100,cold or otherwise

530

205

35

7.90

Table 5 Steel tube Inspection Item.Test Method and Sampling Quantity

No.

Inspection Item

Sampling Quantity

Sampling Method

Test Method

1

Chemical Component

Take a sample of each furance

GB/T 20066

GB/T 223.GB/T 11170.GB/T20123.GB/T 20124

2

Tensile Test

Take a sample between two steel tubes of each batch

GB/T 2975

GB/T 228.1

3

Flattening Test

Take a sample between two steel tubes of each batch

GB/T 246

GB/T 246

4

Flaring Test

Take a sample between two steel tubes of each batch

GB/T 242

GB/T 242

5

Hydraulic Test

Each piece

-

GB/T 241

6

Ultrasonic Test

Each piece

-

GB/T 5777-2008

7

Eddy Test

Each piece

-

GB/T 7735-2004

8

Intercrystalline corrosion test

Take a sample between two steel tubes of each batch

GB/T 4334-2008

GB/T 4334-2008

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  • Seamless Stainless Steel pipes for fliuid transport
  • Seamless Stainless Steel pipes for fliuid transport
  • Seamless Stainless Steel pipes for fliuid transport
  • Seamless Stainless Steel pipes for fliuid transport
  • Seamless Stainless Steel pipes for fliuid transport
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