加磷高强度冷连轧钢牌号B180P2

牌号	化学成分（熔炼分析） % （质量分数）
	C	Mn	P	S	Alt
B180P2	≤0.08	≤0.08	≤0.12	≤0.025	≥0.015
B220P2	≤0.10	≤1.00	≤0.12	≤0.025	≥0.015
HC180P	≤0.05	≤0.60	≤0.08	≤0.025	≥0.015
HC220P	≤0.07	≤0.70	≤0.08	≤0.025	≥0.015
HC260P	≤0.08	≤0.70	≤0.10	≤0.025	≥0.015
HC300P	≤0.10	≤0.70	≤0.12	≤0.025	≥0.015
号	拉伸试验			r90 d	n90
	屈服强度a	抗拉强度	断后伸长率b，c	不小于	不小于
	MPa	MPa	A80mm
			% 不小于
B180P2	180～280	340	30	-	-
B220P2	220～320	380	28	-	-
HC180P	180～230	280～360	34	1.6	0.17
HC220P	220～270	320～400	32	1.3	0.16
HC260P	260～320	360～440	29	-	-
HC300P	300～360	400～480	26	-	-

20190711150326705

20190711150431943

20190711150110716

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