牌号 | 42CrMo4 |
1.7225 | |
对应标准 | NF EN 10269-1999
用于高温或低温条件下的紧固件用钢及镍合金 |
归类 | 合金钢 |
标签 | 淬火回火钢 |
Material designation | Heat treatment condition | Diameter d mm | Minimum 0.2%-proof strength Rp0.2 in MPa at a temperature (in°C) of: | |||||||||||||
Name | Number | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 550 | 600 | 650 | ||
42CrMo4 | 1.7225 | +QT | d≤60 | 720 | 702 | 677 | 640 | 602 | 562 | 518 | 475 | 420 | 375 | - | - | - |
Material designation | Heat treatment condition | Diameter d mm | Minimum fracture energy in shock bending (in J) (ISO-V specimens) at a temperature (in ℃) of: | ||||||||||||||||
Name | Number | -270 | -196 | -160 | -140 | -120 | -110 | -100 | -90 | -80 | -70 | -60 | -50 | -40 | -20 | 0 | +20 | ||
42CrMo4 | 1.7225 | +QT | d≤60 | - | - | - | - | - | - | 27 | - | - | - | - | - | 40 | - | - | 50 |
Material designation | Heat treatment condition | Normalizing,quenching or solution annealing temperature °C | Type of cooling① | Tempering or precipitation treatment (and time) °C | |
Name | Number | ||||
42CrMo4 | 1.7225 | +QT | 820 to 860 | o,w | 540 to 680 |
◎ 根据原件相关规定,如果允许矫直后消除应力,应选择消除应力的温度,以获得规定的性能。 | |||||
① a=air; o=oil; w=water |