Chemical composition:
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（Super) Duplex (Ferritic / Austenitic ) Steel Seamless Pipe and Tube |
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A790/A790M: Standard Specification for Seamless And Welded Ferritic / Austenitic Stainless Steel Pipe. |
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A789/A789M: Standard Specification for Seamless and Welded Ferritic/ Austenitic Stainless Steel Tubing for General Service. |
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Material |
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
N |
Cu |
Others |
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S31803 |
0.030 |
2.00 |
0.030 |
0.020 |
1.00 |
4.5-6.5 |
21.0-23.0 |
2.5-3.5 |
0.08-0.20 |
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1.4462 |
0.030 |
2.00 |
0.035 |
0.015 |
1.00 |
4.5-6.5 |
21.0-23.0 |
2.5-3.5 |
0.10-0.22 |
- |
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Mechanical Properties: MaterialTensile Strength,Min PSI (MPa)Yield Strength (0.2% offset) Min(Mpa)Elongation in 2 in. or 50mm or 4D,Min.,%S3180390000 (620)65000 (450)25
A: New designation established in accordance with Practice E 527 and SAE J1086. |
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B: % Cr + 3.3 X% Mo + 16 X % N. |
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Material Including: F51,UNS S31803, F60,UNS S32205,SAF2205;F61,UNS S32550;F50, UNS S31200;F53,UNS S32750; F55, UNS S32760;F59,UNS S32520,329,UNS S32900;F52, |
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UNS S32950;F57,UNS S39277;S31260;S32001;S32304;S39274;S32906,S32003;F54,UNS S32740 |
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Other Standard DIN17458, EN10216-5 / ISO 1127 , GOST, JIS are available. |
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