牌號 | 20Mn5 |
1.1133 | |
對應(yīng)標準 | 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 | ||
20Mn5 | 1.1133 | +N | d≤60 | 306 | 283 | 260 | 237 | 213 | 192 | 182 | 173 | - | - | - | - | - |
+N | 60<d≤150 | 304 | 278 | 251 | 229 | 213 | 192 | 182 | 173 | - | - | - | - | - |
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 | ||
20Mn5 | 1.1133 | +N | d≤60 | - | - | - | - | - | - | - | - | - | - | - | 27 | 31 | 47 | 55 | 55 |
+N | 60<d≤150 | - | - | - | - | - | - | - | - | - | - | - | - | - | 40 | 55 | 55 |
Material designation | Heat treatment condition | Normalizing,quenching or solution annealing temperature °C | Type of cooling① | Tempering or precipitation treatment (and time) °C | |
Name | Number | ||||
20Mn5 | 1.1133 | +N | 880 to 920 | a | - |
◎ 根據(jù)原件相關(guān)規(guī)定浅蚪,如果允許矯直后消除應(yīng)力藕帜,應(yīng)選擇消除應(yīng)力的溫度,以獲得規(guī)定的性能惜傲。 | |||||
① a=air; o=oil; w=water |
Designation | Temperature | Strength for 1% (plastic) creep strain ① | Creep rupture strength for ② | ||||
Name | Number | °C | 10000h | 100000h | 10000h | 100000h | 200000h |
20Mn5 | 1.1133 | 380 | - | - | 291 | 227 | (206) |
390 | - | - | 266 | 203 | (181) | ||
400 | - | - | 243 | 179 | (157) | ||
410 | - | - | 221 | 157 | (135) | ||
420 | - | - | 200 | 136 | (115) | ||
430 | - | - | 180 | 117 | (97) | ||
440 | - | - | 161 | 100 | (82) | ||
450 | - | - | 143 | 85 | (70) | ||
460 | - | - | 126 | 73 | (60) | ||
470 | - | - | 110 | 63 | (52) | ||
480 | - | - | 96 | 55 | (44) | ||
490 | - | - | 84 | (47) | (37) | ||
500 | - | - | 74 | (41) | - |
◎ The values given in this table are the mean values of the scatter band so far obtained, which will be checked from time to time as further test results become available and if necessary corrected. ◎ * and () indicate values of extended stress extrapolation or time extrapolation, respectively. ① This is the stress relative to the initial cross- section leadina to a permanent elongation of 1 % after 10000 h and 100000 h. ② This is the stress relative to the initial cross- section leading to fracture after 10000 h, 100000 h and 200000 h. |