宝山钢铁股份有限公司(简称“宝钢股份”)是中国最大、最现代化的钢铁联合企业。宝钢股份以其诚信、人才、创新、管理、技术诸方面综合...
| 牌号 | 20Mn5 |
| 欧标钢号 | 1.1133 |
| 对应标准 | EN 10269-2013
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 |
| 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 | ||
| 20Mn5 | 1.1133 | +N | d≤60 | 27 | 31 | 47 | 55 | 55 | |||||||||||
60| | | | | | | | | | | | | | 40 | 55 | 55 | | |||
| 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| 304 | 278 | 251 | 229 | 213 | 192 | 182 | 173 | | | | | | | |||
| 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 | |