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| 非合金铸钢 (【技】指使用状态为铸造组织的非合金钢。以碳为主要合金元素并含有少量硅、锰等元素。含碳量小于0.2%为低碳非合金铸钢，含碳量为0.2% ~ 0.5%的为中碳非合金铸钢，含碳量大于0.5%的为高碳非合金铸钢。随着铸钢中含碳量的增加，铸钢的强度增大、硬度提高、韧性变坏。在重型机械中用于制造承受大负荷的零件，例如轧钢机机架，水压机底座等；在铁路车辆方面用于制造受力大而又承受冲击的零件。) | |||
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