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:Duplex Steel Tubes,Austenitic-Ferritic Steel Tubes,Stainless Steel Welded Tubes / Pipes
Torich International Co.,Ltd--The Steel Tube Maker Duplex Steel Tubes,Austenitic-Ferritic Steel Tubes,Stainless Steel Welded Tubes / Pipes
Home > Products > Duplex Stainless Steel Pipes > Austenitic-Ferritic Grade Stainless Steel Welded Tubes

Austenitic-Ferritic Grade Stainless Steel Welded Tubes

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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: 45 Days

Basic Info

Model No.: GB/T 21832

Type: Welded

Certification: API, CE, BSI, UL

Application: Fluid Pipe

Section Shape: Round

Surface Treatment: Oiled

Usage: Pipeline Transport

Technique: Cold Drawn

Material: Stainless Steel, 329J3L 1.4462

OD: 4-1200mm

WT: 0.3-200mm

Length: Max 12000mm

Product Name: GB/T 21832 Austenitic-Ferritic (duplex)

Additional Info

Packaging: Anti Rust Oil Protection, in seaworthy packing material, in hexagonal bundles or in wooden box

Productivity: 40000 ton per year

Brand: TORICH

Transportation: Ocean,Land,Air

Place of Origin: Zhejiang,China

Supply Ability: 50000 ton per year

Certificate: ISO 9001:2008 ISO 14001:2008 TS 16949

HS Code: 7304191000

Port: Shanghai,Ningbo,Foshan

Product Description

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

Spec:
Material:329J3L 1.4462
Size Range:OD:4-1200mm
WT:0.3-200mm
General Length:3-12m
Tolerance:
According to the following tables or customers` request.


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


Recommended heat treatment system and mechanical property of steel tube

Number Steel grade

Recommended

Heat treatment system

Tensile property Hardness

Tensile strength

Rm/(N/mm²)

Specifies the non-proportional extension strength Rp0.2/MPa

Elongation

A/%

HBW HRC
No less than No more than
1 022Cr19Ni5Mo3Si2N 980℃~1040℃ Quenching 630 440 30 290 30
2 022Cr22Ni5Mo3N 1020℃~1100℃ Quenching 620 450 25 290 30
3 022Cr23Ni5Mo3N 1020℃~1100℃ Quenching 655 485 25 290 30
4 022Cr23Ni4MoCuN 925℃~1050℃ Quenching 690 450 25 290 30
5 022Cr25Ni6Mo2N 1050℃~1100℃ Quenching 600 400 25 280 -
6 022Cr25Ni7Mo3WCuN 1020℃%~1100℃ Quenching 690 450 25 290 30
7 03Cr25Ni6Mo3Cu2N ≥1040℃ Quenching 760 450 25 297 -
8 022Cr25Ni7Mo4N 1025℃~1125℃ Quenching 800 550 15 300 32
9 022Cr25Ni7Mo4WCuN 1100℃~1140℃ Quenching 750 550 25 300 -


Duplex stainless steel brand contrast table in different standards

Number China US Japan Europe
Steel grade in this standard ASTM A790-05a JIS G3463:2006 EN 10217-7:2005
1 022Cr19Ni5Mo3Si2N S31500 - -
2 022Cr22Ni5Mo3N S31803 SUS329J3LTH

X2CrNiMoN22-5-3

1.4462

3 022Cr23Ni5Mo3N S32205 - -
4 022Cr23Ni4MoCuN S32304

X2CrNiN234

1.4362

5 022Cr25Ni6Mo2N S31200 - -
6 022Cr25Ni7Mo3WCuN S31260 SUS329J4LTB -
7 03Cr25Ni6Mo3Cu2N S32550 - -
8 022Cr25Ni7Mo4N S32750 -

X2CrNiMoN25-7-4

1.4410

9 022Cr25Ni7Mo4WCuN S32760 -

X2CrNiMnCuWN25-7-4

1.4501


Producing Method:Single-sided or double-sided automatic arc welding


Technical Delivery Conditions:Pickled after heat treatment


Widely used in the field of/Application:Pressure equipment, liquid delivery and heat exchanger


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Product Categories : Duplex Stainless Steel Pipes

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  • Austenitic-Ferritic Grade Stainless Steel Welded Tubes
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  • Austenitic-Ferritic Grade Stainless Steel Welded Tubes
  • Austenitic-Ferritic Grade Stainless Steel Welded Tubes
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