ZG230-450就是铸造碳钢,230是指这种铸钢件的屈服强度为230Mpa,450是指这种材质的抗拉强度为450Mpa。ZG代表铸钢的拼音缩写.
化学成分=组成元素比例(%):碳C:0.22~0.29;锰Mn:0.5~0.8;磷P:≤0.035;硫S:≤0.035;硅Si:0.17~0.37工艺性能
冶 炼
一般用电炉冶炼,冶炼容易掌握
铸 造
ZG25铸造性能较好,熔点较高,实际流动性较差,易氧化,铸造缩尺约1.5%~2.0%,凝固收缩约4.2%,浇注温度约1500~1550℃。
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