STEEL GRADES


Grade	C	Si	Mn	P	S	Mo	Cr	Nb	V	Ni
HG60	≤0.18	0.15~0.40	1.00~1.70	≤0.030	≤0.025	–	–	0.02~0.06	0.03~0.08	–
HG70	≤0.12	0.15~0.35	≤2.00	≤0.030	≤0.015	0.10~0.50	≤0.50	0.03~0.08	–	–
HG785	≤0.15	0.15~0.35	0.80~1.50	≤0.030	≤0.015	0.10~0.50	0.40~0.80	0.02~0.06	–	≤0.80
HG980	≤0.16	0.15~0.45	≤2.00	≤0.030	≤0.015	–	–	Nb+V+Ti≤0.10		–

Grade	Thick mm	Property				180 Bend	Impact test
		Ret		Rm	A50		Degree			AKA
		MPa		MPa	%		℃			J
HG60	10~25	≥450	570~720		≥19	d=3a	20	longitudinal		≥47
HG70	10~50	≥590	685~830		≥17	d=3a	-20	longitudinal		≥47
HG70	50~60	≥570	670~830		≥15	d=3a	-20	longitudinal		≥47
HG785D	10~60	≥685	≥785		≥15	d=3a	-40	longitudinal		≥47
HG785E	10~60	≥685	≥785		≥15	d=3a	-40	longitudinal		≥47
HG980C	12~28	≥880	980~1150		≥15	d=3a	0	longitudinal		≥47
HG980C	28~50	≥850	980~1150		≥15	d=3a	0	longitudinal		≥47
HG980D	12~28	≥880	980~1150		≥15	d=3a	-20	longitudinal		≥35
HG980D	28~50	≥850	980~1150		≥15	d=3a	-20	longitudinal		≥35
HG980E	12~28	≥880	980~1150		≥15	d=4a	-20	longitudinal		≥35
HG980E	28~50	≥850	980~1150		≥15	d=4a	-20	longitudinal		≥35

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