| 牌號(hào) | 20Cr4H保證淬透性結(jié)構(gòu)鋼 | |||||
| 美國(guó)UNS | H51200 | |||||
| 對(duì)應(yīng)標(biāo)準(zhǔn) | ASTM A 304-2004 | |||||
| 須符合端部淬火硬度要求的碳鋼與合金鋼棒材規(guī)格 | ||||||
| Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenability Requirements ***BEST AVAILABLE COPY*** | ||||||
| 20Cr4H化學(xué)元素成分含量(%) | ||||||
| 成分 | C | Si | Mn | P | S | Cr |
| 最小值 | 0.17 | 0.15 | 0.6 | - | - | 0.6 |
| 最大值 | 0.23 | 0.3 | 1 | 0.025 | 0.025 | 1 |
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