牌号 | 20Mn5 |
德国W-Nr. | 1.1133 |
对应标准 | DIN EN 10269-2014
规定高温和/或低温性能的紧固件用钢和镍合金 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |
归类 | 碳钢 |
性能 | 淬透性 |
标签 | 调质型钢 |
说明 | —本欧洲标准规定了非合金和合金(包括不锈钢)钢和镍合金制成的在高温和/或低温下具有指定性能的紧固件的半成品、棒材的要求。 —本标准的要求也适用于成品紧固件 —EN 10021中的一般交货技术条件也适用于按照本标准提供的产品。 |
密度 | 7.85 g/cm3 |
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 | |||||
60<d≤150 | 304 | 278 | 251 | 229 | 213 | 192 | 182 | 173 |
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 | ||
20Mn5 | 1.1133 | +N | d≤60 | 27 | 31 | 47 | 55 | 55 | |||||||||||
60<d≤150 | 40 | 55 | 55 |
Material designation | Heat-treatment symbol | Normalizing,quenching or solution annealing temperature °C | Type of cooling | Tempering or precipitation treatment (and time) °C | |
Name | Number | ||||
20Mn5 | 1.1133 | +N | 880 to 920 | a |