51CrV4 1.8159 50CV4 - NF EN 10083-3-2006

Grade	51CrV4
	1.8159
Old Grade
Corresponding Standard	NF EN 10083-3-2006 Tempered alloy structural steel
Classification	Alloy Steel

51CrV4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S ^①	Cr	V
Minimum Value	0.47	-	0.7	-	-	0.9	0.1
Maximum Value	0.55	0.4	1.1	0.025	0.025	1.2	0.25

51CrV4 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
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:	Processed to a Certain Shearability (+S)					①
Steel:	Softening Annealing (+A)					≤248

Approximate Comparison Table Structural Alloy Steel

China	Japan	United States	International Organization for Standardization	Germany	France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
50CrVA	SUP10	6150	51CrV4	50CrV4	50CrV4 50CV4 51CrV4	51CrV4	1.8159	50KHGFA	2230	735A50 735A51

51CrV4 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!