牌號 | 25CrMo4 |
歐標鋼號 | 1.7218 |
對應(yīng)標準 | EN 10269-2013
規(guī)定高溫和/或低溫性能的緊固件用鋼和鎳合金 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |
歸類 | 合金鋼 |
性能 | 淬透性 |
標簽 | 調(diào)質(zhì)型鋼 |
密度 | 7.85 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 | ||
25CrMo4 | 1.7218 | +QT | d≤60 | 40 | 40 | 45 | 50 | 60 | |||||||||||
60<d≤100 | 40 | 40 | 50 | 60 |
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 | ||
25CrMo4 | 1.7218 | +QT | d≤100 | 435 | 428 | 420 | 412 | 392 | 363 | 333 | 304 | 275 | 235 | |||
100<d≤150 | 414 | 403 | 393 | 382 | 372 | 344 | 324 | 294 | 265 | 226 |
Material designation | Heat-treatment symbol | Normalizing,quenching or solution annealing temperature °C | Type of cooling | Tempering or precipitation treatment (and time) °C | |
Name | Number | ||||
25CrMo4 | 1.7218 | +QT | 840 to 880 | o,w | 540 to 680 |
Material designation | Temperature °C | Strength for 1%(plastic) creep strain | Creep rupture strength for | ||||
Name | Number | 10000h MPa | 100000h MPa | 10000h MPa | 100000h MPa | 200000h MPa | |
25CrMo4 | 1.7218 | 420 | 274 | 221 | 387 | 308 | |
430 | 258 | 203 | 364 | 281 | |||
440 | 242 | 186 | 338 | 253 | |||
450 | 226 | 171 | 311 | 226 | |||
460 | 210 | 155 | 283 | 200 | |||
470 | 195 | 141 | 255 | 178 | |||
480 | 180 | 127 | 226 | 157 | |||
490 | 163 | 112 | 200 | 136 | |||
500 | 147 | 98 | 176 | 118 | |||
510 | 130 | 83 | 153 | 100 | |||
520 | 115 | 69 | 133 | 82 | |||
530 | 98 | 54 | 114 | 66 | |||
540 | 81 | 39 | 95 | 51 | |||
550 | 64 | 25 | 79 | 36 |