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:Stainless Steel Tubes,Seamless Stainless Steel Tubes For Structure,GB/T14975 Stainless Steel Tubes For Structure
Torich International Co.,Ltd--The Steel Tube Maker Stainless Steel Tubes,Seamless Stainless Steel Tubes For Structure,GB/T14975 Stainless Steel Tubes For Structure
Home > Products > Stainless Steel Tube > GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure

GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure

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    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Incoterm: FOB,CFR,CIF,FCA,CPT
    Min. Order: 5 Ton
    Delivery Time: 35 Days

Basic Info

Model No.: GB/T14975

Type: Seamless

Certification: API, CE, BSI, UL

Application: Structure Pipe

Section Shape: Round

Surface Treatment: Varnishing

Usage: Construction & Decoration

Technique: Hot Rolled, Cold Rolled Hot Rolled Cold Drawn

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

Product Name: Torich GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure

Shape: Round

Surface: Pickling

Finish: Heat Treatment

OD: 3-420mm

WT: 0.5-50mm

Length: 1-12mm

Additional Info

Packaging: In bundles with seaworthy packing

Productivity: 50000tons/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

HS Code: 7306309000

Port: Shanghai,Ningbo

Product Description

Product Name:Torich GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure

Standard:GB/T14975

Size Range: OD: 3-420mm WT: 0.5-50mm Length: 1-12mm or according to customers' actual application and production.

Application:For Structural purposes

Steel Grade:

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 Nominal Outer Diameter and Wall Thickness Unit:mm

Hot Roll(Extrusion.Expansion)Steel Tube

Cold Drawn(Roll) Steel Tube

Diamension

Tolerance

Diamension

Tolerance

Ordinary Level PA

High Level PC

Ordinary Level PA

High Level PC

Nominal Outer Diameter

D

76.1

±1.25%D

±0.60

Nominal Outer Diameter

D

12.7

±0.30

±0.10

76.1~139.7

±0.80

12.7~38.1

±0.30

±0.15

139.7~273.1

±1.5%D

±1.20

38.1~88.9

±0.40

±0.30

88.9~139.7

±0.9%D

±0.40

273.1~323.9

±1.60

139.7~203.2

±0.80

203.2~219.1

±1.10

323.9

±0.6%D

219.1~323.9

±1.60

323.9

±0.5%D

Nominal Wall Thinckness

S

All Wall Thickness

+15%S

-12.52%S

±12.5%S

Nominal Wall Thinckness

S

All Wall Thickness

+12.5%S

-10%S

±10%S

Table 2 Tolerance of Minimum Wall Thickness Unit:mm

Production Method

Diamension

Tolerance

Ordinary Level PA

High Level PC

Hot Roll(Extrusion.Expansion)Steel Tube

W-H

Smin15

+27.5% Smin

0

+25% Smin

0

Smin15

+35% Smin

0

Cold Drawn(Roll) Steel Tube

W-C

All Wall Thickness

+22% S

0

+20% S

0


Table 3 Grade and Chemical Component

No.

Unified Digital Code

Grade

Chemical Component(Quality Fraction)/%

C

Si

Mn

P

S

Ni

Cr

Mo

Cu

N

1

S30210

12Cr18Ni9

0.15

1.00

2.00

0.040

0.030

8.00~10.00

17.00~19.00

-

-

0.10

2

S30408

06Cr19Ni10

0.08

1.00

2.00

0.040

0.030

8.00~11.00

18.00~20.00

-

-

-

3

S30403

022Cr19Ni10

0.030

1.00

2.00

0.040

0.030

8.00~12.00

18.00~20.00

-

-

-

4

S30458

06Cr19Ni10N

0.08

1.00

2.00

0.040

0.030

8.00~11.00

18.00~20.00

-

-

0.10~0.16

5

S30478

06Cr19Ni9NbN

0.08

1.00

2.50

0.040

0.030

7.50~10.50

18.00~20.00

-

-

0.15~0.30

6

S30453

022Cr19Ni10N

0.030

1.00

2.00

0.040

0.030

8.00~11.00

18.00~20.00

-

-

0.10~0.16

7

S30908

06Cr23Ni13

0.08

1.00

2.00

0.040

0.030

12.00~15.00

22.00~24.00

-

-

-

8

S31008

06Cr25Ni20

0.08

1.50

2.00

0.040

0.030

19.00~22.00

24.00~26.00

-

-

-

9

S31252

015Cr20Ni18Mo6CuN

0.02

0.80

1.00

0.030

0.010

17.50~18.50

19.50~20.50

6.00~6.50

0.50~1.00

0.18~0.22

10

S31608

06Cr17Ni12Mo2

0.08

1.00

2.00

0.040

0.030

10.00~14.00

16.00~18.00

2.00~3.00

-

-

11

S31603

022Cr17Ni12Mo2

0.030

1.00

2.00

0.040

0.030

10.00~14.00

16.00~18.00

2.00~3.00

-

-


Table 4 Mechnical Properties

No.

Serial number

Steel

Grade

Mechnical Properties

Hardness

tensile strength

Rm/MPa

elongation strength

Rp0.2/MPa

elongation after fracture

A/%

HBW/HV/HRB

1

S30210

12Cr18Ni9

520

205

35

192HbW/200HV/90HRB

2

S30438

06Cr19Ni10

520

205

35

192HbW/200HV/90HRB

3

S30403

022Cr19Ni10

480

175

35

192HbW/200HV/90HRB

4

S30458

06Cr19Ni10N

550

275

35

192HbW/200HV/90HRB

5

S30478

06Cr19Ni9NbN

685

345

35

-

6

S30453

022Cr19Ni10N

550

245

40

192HbW/200HV/90HRB

7

S30908

06Cr23Ni13

520

205

40

192HbW/200HV/90HRB

8

S31008

06Cr25Ni20

520

205

40

192HbW/200HV/90HRB

9

S31252

015Cr20Ni18Mo6CuN

655

310

35

220HbW/230HV/96HRB

10

S31608

06Cr17Ni12Mo2

520

205

35

192HbW/200HV/90HRB

11

S31603

022Cr17Ni12Mo2

480

175

35

192HbW/200HV/90HRB

12

S31609

07Cr17Ni12Mo2Ti

515

205

35

192HbW/200HV/90HRB

13

S31668

06Cr17Ni12Mo2N

530

205

35

192HbW/200HV/90HRB

14

S31653

022Cr17Ni12Mo2N

550

245

40

192HbW/200HV/90HRB

15

S31658

06Cr17Ni12Mo2N

550

275

35

192HbW/200HV/90HRB

16

S31688

06Cr18Ni12Mo2Cu2

520

205

35

-

17

S31683

022Cr18Ni14Mo2Cu2

480

180

35

-

18

S31782

015Cr21Ni26Mo5Cu2

490

215

35

192HbW/200HV/90HRB

Table 5 Testing items and sampling quantity of steel tubes

Number

Testing items

Sampling quantity

1

Chemical composition

1 sample from each furnace

2

Tensile test

1 sample from each of two steel tubes on each batch

3

Hardness test

1 sample from each of two steel tubes on each batch

4

Ultrasonic testing

ALL

5

Hydraulic test

ALL

6

Flattening test

1 sample from each of two steel tubes on each batch

7

Expansion test

1 sample from each of two steel tubes on each batch

8

Eddy current testing

ALL

9

Intergranular corrosion test

1 sample from each of two steel tubes on each batch






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  • GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure
  • GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure
  • GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure
  • GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure
  • GB/T14975 304/316 Seamless Stainless Steel Tubes For Structure
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