Steel Products

STEEL ROUND BAR

CHEMICAL COMPOSITION AND MECHANICAL PROPERTIES 1

GRADE	EQUIVALENT TO			CHEMICAL COMPOSITION %						MECHANICAL PROPERTIES MIN
	AISI	JIS	DIN	C	Si	Mn	Cr	Mo	V	б b N/mm2	б s N/mm2	δ %	ψ %	AK J
20Mn2	1320	SMn 420	20 Mn5	0.17-0.24	0.17-0.37	1.40-1.80	---	---	---	785	590	10	40	47
30Mn2	1330	---	30 Mn5	0.27-0.34	0.17-0.37	1.40-1.80	---	---	---	785	635	12	45	63
27SiMn	---	---	---	0.24-0.32	1.10-1.40	1.10-1.40	---	---	---	980	835	12	40	39
20Cr	5120	SCr415	20Cr4	0.18-0.24	0.17-0.37	0.50-0.80	0.70-1.00	---	---	835	540	10	40	47
40Cr	5140	SCr440	41Cr4	0.37-0.44	01.7-0.37	0.50-0.80	0.80-1.10	---	---	980	785	9	45	47
20CrMo	4119	SCM420	22CrMo4	0.17-0.24	0.17-0.37	0.40-0.70	0.80-1.10	0.15-0.25	---	885	685	12	50	78
35CrMo	4135	SCM435	34CrMo4	0.32-0.40	0.17-0.37	0.40-0.70	0.80-1.10	0.15-0.25	---	980	835	12	45	63
42CrMo	4142	SCM440	42CrMo4	0.38-0.45	0.17-0.37	0.50-0.80	0.90-1.20	0.15-0.25	---	1080	930	12	45	63
35CrMoV	---	---	---	0.30-0.38	0.17-0.37	0.40-0.70	1.00-1.30	0.20-0.30	0.10-0.20	1080	930	10	50	71
15CrMn	6150	---	50CrV4	0.12-0.18	0.17-0.37	1.10-1.40	0.47-0.70	---	---	785	590	12	50	47
20CrMnSi	---	---	---	0.17-0.23	0.90-1.20	0.80-1.10	0.80-1.10	---	---	785	635	12	45	55
20CrMnMo	---	---	---	0.17-0.23	0.17-0.37	0.90-1.20	1.10-1.40	0.20-0.30	---	1175	885	10	45	55

CHEMICAL COMPOSITION AND MECHANICAL PROPERTIES 2

GRADE	EQUIVALENT TO			CHEMICALE COMPOSITION								MECHANICAL PROPERTIES MIN
	AISI	JIS	DIN	C	Si	Mn	P	S	Ni	Cr	Cu	б b N/mm2	б s N/mm2	δ %	ψ %	AK J
							MAX
10	1010	S10C	CK10	0.07-0.14	0.17-0.37	0.35-0.65	0.035	0.035	0.25	0.15	0.25	335	205	31	55	---
15	1015	S15C	CK15	0.12-0.19	0.17-0.37	0.35-0.65	0.035	0.035	0.25	0.25	0.25	375	225	27	55	---
20	1020	S20C	CK22	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	0.25	0.25	0.25	410	245	25	55	---
25	1025	S25C	1C25	0.22-0.30	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	450	275	23	50	71
30	1030	S30C	1C30	0.27-0.35	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	490	295	21	50	63
35	1035	S35C	1C35	0.32-0.40	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	530	315	20	45	55
40	1040	S40C	1C40	0.37-0.45	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	570	335	19	45	47
45	1045	S45C	1C45	0.42-0.50	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	600	355	16	40	39
50	1050	S50C	1C50	0.47-0.55	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	630	375	14	40	31
55	1055	S55C	1C55	0.52-0.60	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	645	380	13	35	---
60	1060	S58C	1C60	0.57-0.65	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	675	400	12	35	---
65	1065	SWRH67A	CK67	0.62-0.70	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	695	410	10	30	---
70	1070	SWRH72A	CK67	0.67-0.75	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	715	420	9	30	---
75	1075	SWRH77A	C75	0.72-0.80	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	1080	880	7	30	---
80	1080	SWRH82A	D85-2	0.77-0.85	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	1080	930	6	30	---
85	1084	SWRS82A	CK85	0.82-0.90	0.17-0.37	0.50-0.80	0.035	0.035	0.25	0.25	0.25	1130	980	6	30	---
40Mn	1043	SWRH42B	2C40	0.37-0.45	0.17-0.37	0.70-1.00	0.035	0.035	0.25	0.25	0.25	590	355	17	45	47
45Mn	1046	SWRH47B	2C45	0.42-0.50	0.17-0.37	0.70-1.00	0.035	0.035	0.25	0.25	0.25	620	375	15	40	39