S32304 S31803 S32550 S32750 S32760 S32205 S31500 A790 (Super) Duplex Stainless Steel Pipe Tubing Material

Description: (Super) Duplex Stainless Steel. Standard: ASTM A789: Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service ASTM A790: Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe ...... Features: 1.Excellent general and local corrosion resistance,...
Product description

S32304 S31803 S32550 S32750 S32760 S32205 S31500 A790 (Super) Duplex Stainless Steel Pipe Tubing Material

Description:(Super) Duplex Stainless Steel.

Standard:

ASTM A789: Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

ASTM A790: Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe

......

Features:

1.Excellent general and local corrosion resistance, especially stress corrosion, pitting       corrosion, crevice corrosion, corrosion fatigue and abrasion & corrosion.

2.Good weldability

3.Good comprehensive mechanical properties

4.Excellent intergranular corrosion resistance

5.High cost-effectiveness, long life time

Main steel grades: S31803, S32250, S32750, S32760, S31500, S32304, S32550

Specifications: O.D.: 6.0∼1200mm; W.T.: 1∼150mm; L: 5.8m; 11.8m; 12m or above. Modified specifications according to customer requirements.

Technology: Hot Rolled, Cold Drawn & Cold Rolled.

Chemical Composition and Mechanical Properties:

UNS

Chemical composition(%)

Mechanical properties

C≤

Cr

Ni

Mo

Cu

N

Tensile

strength ≥ksi(MPa)

Yield

strength ≥ksi(MPa)

Elongation of the gauge2in or

50mm,≥%

S31500

0.03

18.0-19.0

4.50-5.25

2.5-3.0

...

0.05-0.10

92(630)

64(440)

30

S32304

0.03

21.5-24.5

3.0-5.5

0.05-0.60

0.05-0.60

0.05-0.20

87(600)

65(450)

25

S31803

0.03

21.0-23.0

4.5-6.5

2.5-3.5

...

0.08-0.20

90(620)

58(400)

25

S32205

0.03

22.0-23.0

4.5-6.5

3.0-3.5

...

0.14-0.20

95(655)

65(450)

25

S32550

0.04

24.0-27.0

4.5-6.5

2.9-3.9

1.5-2.5

0.10-0.25

110(760)

70(485)

15

S32750

0.03

24.0-26.0

6.0-8.0

3.0-5.0

≤0.5

0.24-0.32

116(800)

80(550)

15

S32760

0.05

24.0-26.0

6.0-8.0

3.0-4.0

0.5-1.0

0.20-0.30

109(750)

80(550)

25

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