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Round Austenitic - Ferritic Welded Stainless Steel Tube GB/T 21832 ASTM A789M

Basic Information
Place of Origin: CHINA, ZHEJIANG
Brand Name: TORICH
Certification: ISO9001,ISO14001,TS16949
Model Number: GB/T 21832, ASTM A789M, ASTM A790M, ASTM A928M
Minimum Order Quantity: 1 ton
Price: negotiable
Packaging Details: stainless steel tubes packed in wooden boxes or hexagonal bundles in seaworthy packing.
Delivery Time: 30-35 days
Payment Terms: D/P, L/C, D/A, T/T, Western Union, MoneyGram
Supply Ability: 20000 tons per year
Detail Information
Product Name: Austenitic-Ferritic(duplex) Stainless Steel Welded Tubes And Pipes Keyword: Austenitic Ferritic Stainless Steel Welded Tubes And Pipes
Surface: Pickling Material: 022Cr19Ni5Mo3Si2N, 022Cr22Ni5Mo3N, 022Cr23Ni5Mo3N, 022Cr23Ni4MoCuN
Shape: Round Shape OD: 20-250mm
WT: 3-50mm Length: 2-12m
Usage: Pressure Equipment, Fluid Transportation And Heat Exchanger
High Light:

stainless steel round tube

,

stainless tube steel


Product Description

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

product description

 

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

 

company introduction

 

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

 

production workshop

 

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

 

packaging shipping

 

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

 

our certificate

 

ISO

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

Contact Details
Jasmine Zhang

Phone Number : +8618067598028

WhatsApp : +8613736164628