牌号 | X8Ni 9 |
欧标钢号 | 1.5662 |
对应标准 | EN 10269-2013
规定高温和/或低温性能的紧固件用钢和镍合金 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |
归类 | 合金钢 |
标签 | 调质钢 镍合金钢 |
密度 | 7.89 g/cm3 |
Material designation | Heat treatment condition | Diameter d mm | Minimum impact energy KV2inJ(ISO-V test piece) at a test temperature in°C of: | ||||||||||||||||
Name | Number | -270 | -196 | -160 | -140 | -120 | -110 | -100 | -90 | -80 | -70 | -60 | -50 | -40 | -20 | 0 | +20 | ||
X8Ni9 | 1.5662 | +N+NT(or +QT) | d≤75 | - | 40 | 45 | 50 | 50 | - | 60 | - | 70 | 70 | 70 | 70 | 70 | 70 | 70 | 70 |
+QT | d≤75 | - | 70 | - | - | 100 | - | 110 | - | 120 | 120 | 120 | 120 | 120 | 120 | 120 | 120 |
Material designation | Heat-treatment symbol | Normalizing,quenching or solution annealing temperature °C | Type of cooling | Tempering or precipitation treatment (and time)°C | |
Name | Number | ||||
X8Ni9 | 1.5662 | +N+N+T | 880 to 930+770 to 830 | a | 540 to 600 |
+QT | 770 to 830 | o,w | 540 to 600 |