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Grade TypeISJISBSSAE/AISIAFNORDINSISGOSTChemical Composition (%)
CMnSiSPCrVMoNi
Mild SteelIS 4030JIS G 4051 S15CBS 970 080M15SAE/AISI 1015AFNOR CC 20DIN C15SIS 14.137GOST 1414 A-200.150.50-0.050.05----
Medium Carbon SteelIS 2507JIS G 4051 S45CBS 970 080M46SAE/AISI 1045AFNOR CC 45DIN C45SIS 14.166GOST 1414 A-45E0.40–0.500.60–0.900.350.050.05----
High Carbon SteelIS 2507JIS G 4051 S55CBS 970 070M55SAE/AISI 1055AFNOR CC 55DIN C55SIS 14.1665GOST 1414 A-530.50–0.600.50–0.650.350.050.05----
High Carbon SteelIS 2507JIS G 4801 SUP 3BS 970 080A86SAE/AISI 1080AFNOR XC 80 FDIN C80W1SIS 14.177GOST 1050-600.75–0.900.60–0.900.350.050.05----
High Carbon SteelIS 2507JIS G 4801 SUP 4BS 970 080A96SAE/AISI 1095AFNOR XC 100DIN C100W1SIS 14.188GOST 1050-600.95–1.050.50–0.800.350.050.05----
Low Alloy SteelIS 2507JIS G 4801 SUP 10BS 970 735A50SAE/AISI 6150AFNOR 50CV4DIN 50CrV4SIS 14.223GOST 14959-50ChG0.45–0.550.50–0.800.500.050.050.80–1.200.15 min--
Low Alloy SteelIS 7226-BS 970 735A50SAE/AISI 50100AFNOR 100C2DIN 125Cr1SIS 14.1885-1.10–1.300.30–0.600.250.050.050.20–0.50---
Low Alloy Steel75Ni8-------0.72–0.780.30–0.500.15–0.350.0250.0250.15 max-0.10 max1.80–2.10