牌號 | X8Ni9 |
1.5662 | |
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 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 | ||
X18Ni9 | 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 condition | Normalizing,quenching or solution annealing temperature °C | Type of cooling① | Tempering or precipitation treatment (and time) °C | |
Name | Number | ||||
X8Ni9 | 1.5662 | +N+NT | 880 to 930 + 770 to 830 | a | 540 to 600 |
+QT | 770 to 830 | w,o | 540 to 600 |
◎ 根據(jù)原件相關(guān)規(guī)定,如果允許矯直后消除應(yīng)力属荤,應(yīng)選擇消除應(yīng)力的溫度肪误,以獲得規(guī)定的性能。 | |||||
① a=air; o=oil; w=water |