52CrMoV4 1.7701 - DIN EN 10089-2003

Grade	52CrMoV4
Germany W-Nr.	1.7701
Corresponding Standard	DIN EN 10089-2003 Hot-rolled steels for quenched and tempered springs Technical delivery conditions
Classification	Spring Steel
Properties	Strength Elasticity Fatigue Resistance Quench Hardness

52CrMoV4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo	V	More
Minimum Value	0.48	-	0.7	-	-	0.9	0.15	0.1	Cu+10Sn ±0.60
Maximum Value	0.56	0.4	1.1	0.025	0.025	1.2	0.3	0.2	Cu+10Sn ±0.60

52CrMoV4 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
Bar, rod	Quenching and Tempering (+QT)	1450~1750	≥1300	≥6	≥35	-	KU ≥10
Bar, rod	Cold Shearing Treatment (+S)	-	-	-	-	≤280	-
Bar, rod	Softening Annealing (+A)	-	-	-	-	≤248	-
Bar, rod	Spheroidizing Annealing (+AC)	-	-	-	-	≤230	-

New and Old Grade Replacement List

1 Approximate Comparison Table Spring Steel

China		Taiwan, China	Japan	South Korea	United States		International Organization for Standardization	Germany		France	United Kingdom
GB	ISC	CNS	JIS	KS	AISI	UNS	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	BS EN/BS
55CrMnMoA	A34603	SUP13	SUP13	SPS9	4160	G41600	60CrMo3-3	≈51CrMoV4	1.7701	≈51CDV4	705H60

2 Approximate Comparison Table Structural Alloy Steel

52CrMoV4 Corresponding Standards(Same grade name, different standards)

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