本文目录一览:
- 1、Q215是什么材料
- 2、q215与q215a有什么区别?
- 3、q215是什么材质的钢材
Q215是什么材料
Q215焊管是一种碳素结构钢。
其中Q--屈服,215--为该牌号最小屈服点(σs)值。
此类钢一般由转炉或平炉冶炼,其主要原料为铁水。废钢,钢中硫、磷含量高于优质碳素结构钢,一般硫≤0.050%,磷≤0.045%。
由原料带入钢中的其他合金元素含量,如铬、镍、铜一般不超过0.30%,按成分和性能要求,此类钢的牌号由Q195,Q215A、B,Q235A、B、C、D,Q255A、B,Q275等钢级表示。
扩展资料:
Q215的力学性能:
屈服强度(N/mm2)
≥215(a≦16mm),≥205(a16-40mm)
≥195(a40-60mm),≥185(a60-100mm)
≥175(a100-150mm),≥165(a150-200mm)
抗拉强度(σb/MPa):大于355
伸长率(δ5/%):大于13%
≥31(a≤40mm),≥30(a40-60mm)
≥29(a60-100mm),≥27(a100-150mm)
≥26(a150-200mm)
其中
a
为钢材厚度或直径。
参考资料来源:百度百科-Q215
q215与q215a有什么区别?
q215包含q215a。
q215--质量等级符号·脱氧 *** 符号。
质量等级分a,b,c,d,e,依次以a级质量较差,e级质量更高。脱氧 *** 符号为f,b,z和tz,分别表示沸腾钢、半镇静钢、镇静钢和特殊镇静钢。a指不做冲击,b在20度以上,c在0度以上,d-20度以上、e-40度以上,a到e所不同的,指的是它们性能中冲击温度的不同。
所以q215a表示不作冲击的。
Q215A级,是不作冲击韧性试验要求;Q215B级,是作常温(20℃)冲击韧性试验;Q215C级,是作0℃冲击韧性试验;Q215D级,是作-20℃冲击韧性试验;Q215E,是作-40℃冲击韧性试验。冲击韧性试验采用夏比V形缺口试件。冲击韧性指标为Akv。对上述B、C、D级钢在其各自不同温度要求下,都要求达到Akv≥27J。在不同的冲击温度,冲击的数值也有所不同。
q215是什么材质的钢材
Q215属于低碳结构钢。
Q215钢材具有:塑性好,有一定强度,用于制造受力不大的零部件。如:螺钉、螺母、垫圈等、冲压结构件、桥梁、建筑钢结构件等。
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