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Jiangsu Jinguan Special Steel Pipe Co.Ltd
Email:jinguansteel@aliyun.com
Mobile:+8615852819134
Tel: +86-510-83586478
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S32304 S31803 S32550 S32750 S32760 S32205 S31500 A790 (Super) Duplex Stainless Steel Pipe Tubing Material
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 |
