牌號 | Z53CMNNb21-09-02Az |
對應(yīng)標(biāo)準(zhǔn) | NF A 35-579-1991
閥門用鋼 Iron and steel. Stell for valves. Types. |
歸類 | 合金鋼 |
Reference heat treatment condition | Tensile strength at: N/mm2 | |||
500°C | 600°C | 700°C | 800°C | |
+QT | 680 | 610 | 480 | 340 |