42CrMoS4 1.7227 42CD4U - NF EN 10083-3-2006

Grade	42CrMoS4
	1.7227
Old Grade
Corresponding Standard	NF EN 10083-3-2006 Tempered alloy structural steel
Classification	Alloy Steel

42CrMoS4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S ^①	Cr	Mo
Minimum Value	0.38	-	0.6	-	0.02	0.9	0.15
Maximum Value	0.45	0.4	0.9	0.025	0.04	1.2	0.3

42CrMoS4 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	≥10	≥40	HRC ① ≥53
Steel: 16mm ≤ d ≤ 40mm; 8mm ≤ t ≤ 20mm	Quenching + Tempering (+QT)	1000~1200	≥750	≥11	≥45	HRC ① ≥53	≥35
Steel: 40mm ≤ d ≤ 100mm; 20mm ≤ t ≤ 60mm	Quenching + Tempering (+QT)	900~1100	≥650	≥12	≥50	HRC ① ≥53	≥35
Steel: 100mm ≤ d ≤ 160mm; 60mm ≤ t ≤ 100mm	Quenching + Tempering (+QT)	800~950	≥550	≥13	≥50	HRC ① ≥53	≥35
Steel: 160mm ≤ d ≤ 250mm; 100mm ≤ t ≤ 160mm	Quenching + Tempering (+QT)	750~900	≥500	≥14	≥55	HRC ① ≥53	≥35
Steel:	Processed to a Certain Shearability (+S)					② ≤255
Steel:	Softening Annealing (+A)					≤241

42CrMoS4 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"!