51CrV4 EN ISO 683-2-2018 Oil hardened steel wire


Material designation51CrV4
Correspondence standardEN ISO 683-2-2018
Heat-treatable steels,alloy steels and free-cutting steels--Part 2:Alloy steels for quenching and tempering
ClassifyAlloy steel


51CrV4 Chemical Element Content (%)

ComponentCSiMnPSCrCuV
Minimum value0.470.10.6--0.8--
Maximum value0.550.410.0250.0251.10.40.4

51CrV4 Mechanical properties

ConditionsHeat treatment or conditionTensile strength
σb
Mpa
Yield point
σs
Mpa
Elongation or elongation after breaking
δ
%
reduction of area
ψ
%
hardness
HBW
Shock absorption energy
KV2
J
Bar, flat, forgings;
d≤16 or t≤8
Quenching and tempering (+QT)1100~1300≥900≥9≥40--
Bar, flat, forgings;
16 < d≤40 or 8 < t≤20
Quenching and tempering (+QT)1000~1200≥800≥10≥45-≥30
Bar, flat, forgings;
40 < d≤100 or 20 < t≤60
Quenching and tempering (+QT)900~1100≥700≥12≥50-≥30
Bar, flat, forgings;
100 < d≤160 or 60 < t≤100
Quenching and tempering (+QT)850~1000≥650≥13≥50-≥30
Bar, flat, forgings;
160 < d≤250 or 100 < t≤160
Quenching and tempering (+QT)800~950≥600≥13≥50-≥30
Bar, flat, forgings, semi-finished, wire rodSoftening annealing (+A)----≤248-


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