国外阀门材料常用技术标准 承压零部件用奥氏体钢铸件、拉伸性能要求
CF3 J92700 | CF3A J92700 | CF8 J92600 | CF8A J92600 | CF3M J92800 | CF3MA J92800 | CF8M J92900 | CF3MN J92804 | CF8C J92710 | CF10 J92950 | CF10M J92901 | CH8 J93400 | CH10 J93401 | CH20 J93402 | CK20 J94202 | HK30 J94203 | HK40 J94204 | |
抗拉强度, 最小 ksi[MPa] | 70 [485] | 77 [530] | 70 [485] | 77 [530] | 70 [485] | 80 [550] | 70 [485] | 75 [515] | 70 [485] | 70 [485] | 70 [485] | 65 [450] | 70 [485] | 70 [485] | 65 [450] | 65 [450] | 62 [425] |
屈服强度A, 最小 ksi[MPa] | 30 [205] | 35 [240] | 30 [205] | 35 [240] | 30 [205] | 37 [255] | 30 [205] | 37 [255] | 30 [205] | 30 [205] | 30 [205] | 28 [195] | 30 [205] | 30 [205] | 28 [195] | 35 [240] | 35 [240] |
延伸率, 2英寸或 50mm标距B 最小,% | 35.0 | 35.0 | 35.0 | 35.0 | 30.0 | 30.0 | 30.0 | 35.0 | 30.0 | 35.0 | 30.0 | 30.0 | 30.0 | 30.0 | 30.0 | 10.0 | 10.0 |
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