A622 Type A

2023-05-17 17:44:51 來源：鋼鐵之家閱讀量：0

牌號	A622 Type A
對應標準	ASTM A622/A622M-1997 熱軋?zhí)妓乩武?DS)、薄板和帶材 Drawing Steel (DS), Sheet and Strip, Carbon, Hot-Rolled
歸類	碳鋼

A622 Type A 化學元素成分含量(%)

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.

碳當量計算

A622 Type A 機械性能

屈服點 σ_s Mpa	斷后伸長率或延伸率 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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A622 Type A