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51CrV4 ISO 683-2-2016 heat-treatable steel wire

51CrV4 ISO 683-2-2016 heat-treatable steel wire

Material designation	51CrV4
Correspondence standard	ISO 683-2-2016 Heat-treated steels, alloy steels and free-cutting steels Alloy steels for quenching and tempering
classify	alloy steel

51CrV4 Chemical Element Content (%):

Component	C	Si	Mn	P	S	Cr	Cu	V
Minimum value	0.47	0.1	0.6	-	-	0.8	-	0.1
Maximum	0.55	0.4	1	0.025	0.025	1.1	0.4	0.25

51CrV4 Mechanical properties:

Diameter/thickness d/t Mm	Heat treatment or condition	Tensile strength σb Mpa	Yield point σs Mpa	Elongation or elongation after breaking δ %	Shrinkage of section ψ %	hardness HBW	Shock absorption energy KV2 J
Bar, flat, forgings; d≤16 or t≤8	quenching and tempering	1100~1300	≥900	≥9	≥40
Bar, flat, forgings; 16 < d≤40 or 8 < t≤20	quenching and tempering	1000~1200	≥800	≥10	≥45		≥30
Bar, flat, forgings; 40 < d≤100 or 20 < t≤60	quenching and tempering	900~1100	≥700	≥12	≥50		≥30
Bar, flat, forgings; 100 < d≤160 or 60 < t≤100	quenching and tempering	850~1000	≥650	≥13	≥50		≥30
Bar, flat, forgings; 160 < d≤250 or 100 < t≤160	quenching and tempering	800~950	≥600	≥13	≥50		≥30
Bar, flat, forgings, semi-finished, wire rod	Softening annealing (+A)					≤248

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