本文目录一览:
- 1、钢材Q235与Q275什么区别
- 2、Q275是什么材料,主要用于做什么
- 3、q275是什么材料
钢材Q235与Q275什么区别
一、屈服极限不一样:Q235的屈服极限为235MPa;Q275的屈服极限为275MPa。都是普通碳素结构钢,Q代表的是这种材质的屈服极限,后面的数字,就是指这种材质的屈服值。
二、含碳量和抗拉强度不一样:Q235含碳量0.14-0.22%,抗拉强度375-500; Q275含碳量<0.37%,抗拉强度410-560。Q275的含碳量一般大于Q235含碳量,抗拉强度也大些。
三、适用性不一样:Q235应用于建筑及工程结构,例如 *** 钢筋或建造厂房房架、高压输电铁塔、车辆、锅炉、容器、船舶等。Q275用于制造要求强度较高的零件,如齿轮、轴、链轮、螺母、农机用型钢、输送链和链节。
扩展资料
一、由Q+数字+质量等级符号+脱氧 *** 符号组成。它的钢号冠以”Q“,代表钢材的屈服点,后面的数字表示屈服点数值,单位是MPa例如Q235表示屈服应力(σs)为235 MPa的碳素结构钢。必要时钢号后面可标出表示质量等级和脱氧 *** 的符号。
二、Q235用途:
1、大量应用于建筑及工程结构。用以 *** 钢筋或建造厂房房架、高压输电铁塔、桥梁、车辆、锅炉、容器、船舶等,也大量用作对性能要求不太高的机械零件。C、D级钢还可作某些专业用钢使用。
2、可用于各种模具把手以及其他不重要的模具零件。
3、采用Q235钢做冲头材料,经淬火后不回火直接使用,硬度为36~40HRC,解决了冲头在使用中碎裂的现象。
参考资料:百度百科-Q235
Q275是什么材料,主要用于做什么
一、Q275是一种碳素结构钢材料。
二、主要成分:
(质量分数)(%)
C:≤0.37
Mn:≤1.5
Si:≤0.35
S:≤0.050(A级)
P:≤0.035
三、用途:
用于制造要求强度较高的零件,如齿轮、轴、链轮、键、螺栓、螺母、农机用型钢、输送链和链节。
主要用于建筑桥梁工程上 *** 比较重要的机械构件,可代替优质碳素钢材使用,其中Q215B相当10-15号.Q235B相当15-20号钢,Q255B相当25-30号钢,Q275B相当35-40号钢
q275是什么材料
Q275是一种普通碳素结构钢材料,比常用的Q235钢有较高的强度、较好的塑性和切削加工性能,一定的焊接性能,主要用于建筑桥梁工程上 *** 比较重要的机械构件,也可用于制造要求强度较高的零件,如齿轮、轴、链轮、键、螺栓、螺母、农机用型钢、输送链和链节等。Q275可代替优质碳素钢材使用。
Q275
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