牌號 | 42CrMo4 |
1.7225 | |
對應(yīng)標(biāo)準(zhǔn) | NF EN 10269-1999
用于高溫或低溫條件下的緊固件用鋼及鎳合金 |
歸類 | 合金鋼 |
標(biāo)簽 | 淬火回火鋼 |
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 |
◎ 根據(jù)原件相關(guān)規(guī)定蜡豹,如果允許矯直后消除應(yīng)力蛙陆,應(yīng)選擇消除應(yīng)力的溫度,以獲得規(guī)定的性能嗅呻。 | |||||
① a=air; o=oil; w=water |