Alloy steels

Alloy steels for machine structural use.

Cr

SCr415

SCr420

SCr430

SCr435

SCr440

SCr445

Cr-M0

SCM415

SCM420

SCM435

SCM430

Ni-Cr-Mo

SNCM220

SNCM439

Crv

35CrV

40CrV

Bv

50BV30

Application sectors

Classification	Grade	CHEMICAL COMPOSITION(%)
		C	Si	Mn	P	S	Ni	Cr	Mo	V
					Max.	Max.	Max.			Max.
Cr Steel	SCr415H	0.13~0.18	0.15~0.35	0.60~0.85	0.03	0.03	-	0.90~1.20	-	-
	SCr420H	0.17~0.23
	SCr430H	0.28~0.33
	SCr435H	0.33~0.38
	SCr440H	0.38~0.43
Cr-Mo Steel	SCM415H	0.12~0.18	0.15~0.35	0.55~0.90	0.03	0.03		0.85~1.25	0.15~0.35
	SCM420H	0.17~0.23
	SCM435H	0.32~0.39
	SCM440H	0.37~0.44
Ni-Cr-Mo Steel	SNCM220	0.17~0.23	0.15~0.35	0.60~0.90	0.03	0.03	0.40~0.70	0.40~0.65	0.15~0.30
	SNCM439	0.36~0.43					1.60~2.00	0.60~1.00
Cr-V Steel	35 CrV	0.32~0.38	0.15~0.30	0.50~0.90	0.035	0.040	-	0.50~0.70	-	0.10~0.17
	40 CrV	0.38~0.43						0.50~0.90		0.10~0.20
BV Steel	50BV30	0.27~0.33	0.10,max	0.70~1.00	0.03	0.035		0.30~0.50		0.10~0.15

High quality

Application sectors

Bicycle parts, automobile parts, sports equipment parts, hand tools.