A622 Type A_全球钢材百科网钢材化学成分-热处理-物理性能介绍-全球钢材百科网

A622 Type A简介

牌号	A622 Type A
对应标准	ASTM A622/A622M-1997 热轧碳素拉拔钢(DS)、薄板和带材 Drawing Steel (DS), Sheet and Strip, Carbon, Hot-Rolled
归类	碳钢

A622 Type A 化学元素成分含量(%)

成分	C	Mn	P	S	Cr ^②③	Ni ^②	Cu ^②	Mo ^②	Ti ^④	V	Nb ^④	Al
最小值	-	-	-	-	-	-	-	-	-	-	-	0.01
最大值	0.08	0.5	0.02	0.03	0.15	0.2	0.2	0.06	0.008	0.008	0.008	-

① Type A may be furnished as a vacuum degassed or chemically stabilized steel, or both, at the producer option.
② The sum of copper, nickel, chromium, and molybdenum shall not exceed 0.50 % on heat analysis. When one or more of these elements is specified, the sum does not apply; in which case, only the individual limits on the remaining elements will apply.
③ Chromium is permitted at the producer option, to 0.25 % maximum when the carbon is less than or equal to 0.05 %. In such case, the limit on the sum of the four elements in Footnote ② does not apply.
④ For carbon levels less than or equal to 0.02 %, columbium and/or titanium may be used as chemical stabilizing elements at the producer option. When such is the case, the limits above do not apply to those elements. Rather, the limit on columbium shall be 0.10% maximum and the limit on titanium shall be 0.15% maximum. 碳当量计算

A622 Type A 机械性能

屈服点 σ_s Mpa	断后伸长率或延伸率 δ %
205~310	≥28

注1：Yield strength and elongation are measured in the longitudinal direction in accordance with Specification A370.
注2：The yield strength tends to increase and the elongation tends to decrease as the sheet thickness decreases. These properties represent those typical of material in the thickness range of 2.5 to 3.5 mm.

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