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  • 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,Welded Tubes,Austenitic Ferritic Grade Stainless Steel Welded Tubes and Pipes
Torich International Co.,Ltd--The Steel Tube Maker Stainless Steel Tubes,Welded Tubes,Austenitic Ferritic Grade Stainless Steel Welded Tubes and Pipes
Home > Products > Stainless Steel Tube > TORICH GB/T 21832 Austenitic-Ferritic(duplex) Grade Stainless Steel Welded Tubes And Pipes

TORICH GB/T 21832 Austenitic-Ferritic(duplex) Grade Stainless Steel Welded Tubes And Pipes

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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: 1 Ton
    Delivery Time: 30 Days

Basic Info

Model No.: GB/T 21832, ASTM A789M, ASTM A790M, ASTM A928M

Additional Info

Packaging: stainless steel tubes packed in wooden boxes or hexagonal bundles in seaworthy packing.

Productivity: 20000 tons/year

Brand: TORICH

Transportation: Ocean,Land,Air

Place of Origin: China (Zhejiang)

Certificate: ISO9001,ISO14001,TS16949

Port: Shanghai,Ningbo

Product Description

TORICH GB/T 21832 Austenitic-Ferritic(duplex) Grade Stainless Steel Welded Tubes And Pipes

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.

Standard: GB/T 21832, ASTM A789M, ASTM A790M, ASTM A928M

Material: 022Cr19Ni5Mo3Si2N, 022Cr22Ni5Mo3N, 022Cr23Ni5Mo3N, 022Cr23Ni4MoCuN, 022Cr25Ni6Mo2N, 022Cr25Ni7Mo3WCuN, 03Cr25Ni6Mo3Cu2N, 022Cr25Ni7Mo4N,022Cr25Ni7Mo4WCuN

Bending: The bending degree of the steel pipe should not be more than 1.5 mm/m.


Out-of-roundness:The out-of-roundness of the steel pipe should not exceed the allowable deviation of the outer diameter.


Duplex stainless steel:

Duplex stainless steel (DSS), refers to the Ferrite and Austenite each accounted for about 50%, generally less of it also needs to reach 30% of stainless steel. When the Carbon content is low, Cr content is in 18%~28% and Ni content is in 3%~10%. Some steel also contain alloy elements such as Mo, Cu, Nb, Ti, N and so on.

This kind of steel has the characteristics of Austenite and Ferritic, compared with ferrite, it has higher plasticity and toughness, and the no room temperature brittleness, intergranular corrosion resistance and welding performance are improved significantly. Meanwhile, it also maintains the 475℃ brittleness,high thermal conductivity and superplasticity characteristic of Ferritic stainless steel. Compared with Austenitic stainless steel, it has high strength, and the intergranular corrosion resistance and chloride resistant stress corrosion are obviously improved. Duplex stainless steel has excellent corrosion resistance and it is also a kind of nickel - saving stainless steel.


Mechanical Property

No.

Unified digital code

Steel

Grade

Recommended heat treatment system

Tensile property

Hardness

Tensile strength

Rm/(N/mm2)

Non proportional extension strength

Rp0.2/(N/mm2)

Elongation

HBW

HRC

1

S21953

022Cr19Ni5Mo3Si2N

980℃~1040℃

Rapid cooling

630

440

30

290

30

2

S22253

022Cr22Ni5Mo3N

1020℃~1100℃

Rapid cooling

620

450

25

290

30

3

S22053

022Cr23Ni5Mo3N

1020℃~1100℃

Rapid cooling

655

485

25

290

30

4

S23043

022Cr23Ni4MoCuN

925℃~1050℃

Rapid cooling

D≤25mm

690

450

25

-

-

Rapid cooling

D>25mm

600

400

25

290

30

5

S22553

022Cr25Ni6Mo2N

1050℃~1100℃

Rapid cooling

690

450

25

280

-

6

S22583

022Cr25Ni7Mo3WCuN

1020℃~1100℃

Rapid cooling

690

450

25

290

30

7

S25554

03Cr25Ni6Mo3Cu2N

≥1040℃

Rapid cooling

760

550

15

297

31

8

S25073

022Cr25Ni7Mo4N

1025℃~1125℃

Rapid cooling

800

500

15

300

32

9

S27603

022Cr25Ni7Mo4WCuN

1100℃~1140℃

Rapid cooling

750

550

25

300

-

No hardness required of the steel grade, only have to provide the measured data, not as the delivery conditions


Steel Grade Reference Table

No.

China

USA

Japan

Europe

Unified digital code

Steel Gade

ASTM A790-05a

JIS G3463.2005

EN 10217-7.2005

1

S21953

022Cr19Ni5Mo3Si2N

S31500

-

-

2

S22253

022Cr22Ni5Mo3N

S31803

SUS329J3LTB

X2CrNiMoN22-5-3

1.4462

3

S22053

022Cr23Ni5Mo3N

S32205

-

-

4

S23043

022Cr23Ni4MoCuN

S32304

-

X2CrNiN23-4

1.4362

5

S22553

022Cr25Ni6Mo2N

S31200

-

-

6

S22583

022Cr25Ni7Mo3WCuN

S31260

SUS329J4LTB

-

7

S25554

03Cr25Ni6Mo3Cu2N

S32550

-

-

8

S25073

022Cr25Ni7Mo4N

S32750

-

X2CrNiMoN25-7-4

1.4410

9

S27603

022Cr25Ni7Mo4WCuN

S32760

-

X2CrNiMoCuWN25-7-4

1.4501


Stainless Steel Tube,Stainless Steel Exhaust Tube,Welded Steel Tube,Round Stainless Steel Pipe,Polish Stainless Steel Tube,Stainless Coiled Tube,Duplex Stainless Steel Tube


Stainless Steel Tube,Stainless Steel Exhaust Tube,Welded Steel Tube,Round Stainless Steel Pipe,Polish Stainless Steel Tube,Stainless Coiled Tube,Duplex Stainless Steel Tube

TORICH GB/T 21832 Austenitic-Ferritic(duplex) Grade Stainless Steel Welded Tubes And Pipes

Looking for ideal Stainless Steel Tubes Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Welded Tubes are quality guaranteed. We are China Origin Factory of Austenitic Ferritic Grade Stainless Steel Welded Tubes and Pipes. If you have any question, please feel free to contact us.

Product Categories : Stainless Steel Tube

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  • TORICH GB/T 21832 Austenitic-Ferritic(duplex) Grade Stainless Steel Welded Tubes And Pipes
  • TORICH GB/T 21832 Austenitic-Ferritic(duplex) Grade Stainless Steel Welded Tubes And Pipes
  • TORICH GB/T 21832 Austenitic-Ferritic(duplex) Grade Stainless Steel Welded Tubes And Pipes
  • TORICH GB/T 21832 Austenitic-Ferritic(duplex) Grade Stainless Steel Welded Tubes And Pipes
  • TORICH GB/T 21832 Austenitic-Ferritic(duplex) Grade Stainless Steel Welded Tubes And Pipes
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