51CrV4 NF EN 10083-3-2006 Tempered alloy steel wire

Material designation	51CrV4
	1.8159
Old brand	50CV4
Correspondence standard	NF EN 10083-3-2006 Tempered alloy structural steel
classify	alloy steel

51CrV4 Chemical Element Content (%)

51CrV4 Mechanical properties

Conditions	Heat treatment or condition	Tensile strength σb Mpa	Yield point σs Mpa	Elongation or elongation after breaking δ %	reduction of area ψ %	hardness HBW	Shock absorption energy KV2 J
Steel: d ≤ 16mm; t ≤ 8mm	Quenching + tempering (+QT)	1100~1300	≥900	≥9	≥40
Steel: 16mm ≤ d ≤ 40mm;8mm ≤ t ≤ 20mm	Quenching + tempering (+QT)	1000~1200	≥800	≥10	≥45		≥30
Steel: 40mm ≤ d ≤ 100mm;20mm ≤ t ≤ 60mm	Quenching + tempering (+QT)	900~1100	≥700	≥12	≥50		≥30
Steel: 100mm ≤ d ≤ 160mm;60mm ≤ t ≤ 100mm	Quenching + tempering (+QT)	850~1000	≥650	≥13	≥50		≥30
Steel: 160mm ≤ d ≤ 250mm;100mm ≤ t ≤ 160mm	Quenching + tempering (+QT)	800~950	≥600	≥13	≥50		≥30
Steel:	Processing to a certain shear (+S)					①
Steel:	Softening annealing (+A)					≤248

①When shearing is important, the steel should be delivered in a softened state.

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