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

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

China Austenitic - Ferritic ( Duplex ) Grade Stainless Steel Welded Tubes / Pipes GB/T 21832 supplier
Austenitic - Ferritic ( Duplex ) Grade Stainless Steel Welded Tubes / Pipes GB/T 21832 supplier Austenitic - Ferritic ( Duplex ) Grade Stainless Steel Welded Tubes / Pipes GB/T 21832 supplier Austenitic - Ferritic ( Duplex ) Grade Stainless Steel Welded Tubes / Pipes GB/T 21832 supplier Austenitic - Ferritic ( Duplex ) Grade Stainless Steel Welded Tubes / Pipes GB/T 21832 supplier

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Product Details:

Place of Origin: China
Brand Name: TORICH
Certification: ISO 9001 ISO 14001 TS 16949
Model Number: GB/T 21832

Payment & Shipping Terms:

Minimum Order Quantity: 1 Ton
Price: negotiable
Packaging Details: Packing in wooden box,hexagonal bundles or other seaworthy ways.
Delivery Time: 45 days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 40000 Ton/Year
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Detailed Product Description
Product Name: Austenitic-Ferritic (duplex) Grade Stainless Steel Welded Tubes And Pipes Material: 329J3L 1.4462
Surface: Polished Application: Pressure Equipment, Liquid Delivery And Heat Exchanger
Shape: Round OD: 4-1200mm
WT: 0.3-200mm Length: 3-12m

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

Contact Details
TORICH INTERNATIONAL CO.,LTD

Contact Person: Nancy Niu

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