32C4 - NF A 35-557-1983

Grade	32C4
Corresponding Standard	NF A 35-557-1983 Iron And Steel — Heat Treatable Steels for Externally Threaded, High Performance Fasteners for Engineering Purposes.
Classification	Alloy Steel
Properties	Strength

32C4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr
Minimum Value	0.3	0.1	0.6	-	-	0.9
Maximum Value	0.35	0.4	0.9	0.035	0.035	1.2

32C4 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW	Impact Energy Absorption KV2 J
Bar, Coil; d=2016	Oil Quenching	-	-	-	HRC42	-
Bars, coils; d = 13	Oil Quenching	-	-	-	HRC45	-
Bar, Coil; d≤13	Quenching and Tempering	955~1155	≥735	≥10	-	Charpy U Notch ≥45
Bar, Coil; 13<d≤20	Quenching and Tempering	920~1070	≥710	≥12	-	≥45

1 Approximate Comparison Table Structural Alloy Steel

2 Approximate Comparison Table Structural Alloy Steel

Japan	International Organization for Standardization	Germany	France	European Standard		Russia	United Kingdom
JIS	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	BS EN/BS
SCr430H	34Cr4	34Cr4	32C4	34Cr4	1.7033	30KH 35KH	530H32 530M32

32C4 Corresponding Standards(Same grade name, different standards)

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