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q420是什么材质的钢材
更新时间： 2020-12-07 11:33:07  

低合金高强度结构钢。q420是一种低合金高强度结构钢。行业人士都清楚钢的牌号是由代表屈服强度的汉语拼音字母来表示的，其中q420是指屈服强度在420Mpa，它的执行标准是GB1591-2008，它的化学成分主要是C≤0.20，Si ≤0.50，Mn ≤1.70，P ≤0.035，S≤0.035，Nb≤0.07，V≤0.20，Ti≤0.20，Cr≤0.30，Ni≤0.80，Cu≤0.30，N≤0.015，Mo≤0.20。q420拥有良好的力学性能及焊接性，并且冷热加工性能也很不错，总体上提高和改善了钢的强韧性。

关键词： q420 什么 材质 钢材

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