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Duplex & Super Duplex SS Tube Your Position:HOME - Duplex & Super Duplex SS Tube

Duplex & Super Duplex SS Tube
Published:2013-03-14   Clicks:(2559)


Detail:
As the duplex and super duplex stainless steel has both the advantages of ferritic stainless steel and the austenitic stainless steel, they are widely used to produce heat transferring tubing for petrochemical industry, sea water treatment… in aggressive acidic, chloride containing environments. FH Tube supply customer duplex/super duplex tubes with high quality. Typical Grade and Composition: UNS S31803, S32205, S32750, S32760…
Applications: Heater, Heat Exchanger, Condenser, Instrumentation, Pipe lines…
Available Specifications:
ASTM/ASME A/SA789
Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
ASTM/ASME A/SA790
Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe

Chemical Content of Typical Duplex Stainless Steel

 

 

 

 

 

 

 

 

 Grade

C

Mn

P

S

Si

Cr

Ni

Mo

UNS S32101

0.03 max.

2.0 max.

0.03 max.

0.030 max.

1.0 max.

20.0-23.0

1.0-3.0

0.6 max.

N: 0.05-0.17, Cu: 1.0 max.

UNS S32304

0.03 max.

2.5 max.

0.04 max.

0.040 max.

1.0 max.

21.5-24.5

3.0-5.5

0.05-0.6

N: 0.05-0.20, Cu: 0.05-0.6

UNS S31803

0.03 max.

2.0 max.

0.03 max.

0.020 max.

1.0 max.

21.0-23.0

4.5-6.5

2.5-3.5

N: 0.08-0.20

UNS S32205

0.03 max.

2.0 max.

0.03 max.

0.020 max.

1.0 max.

22.0-23.0

4.5-6.5

3.0-3.5

N: 0.14-0.20

UNS S32750

0.03 max.

1.2 max.

0.035 max.

0.020 max.

0.8 max.

24.0-26.0

6.0-8.0

3.0-5.0

N: 0.14-0.20, Cu: 0.5 max.


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