Grade 41Cr4
1.7035
Old Grade
Corresponding Standard NF EN 10083-3-2006
Tempered Alloy Structural Steel
Classification Alloy Steel
41Cr4 Chemical Element Composition Content (%)
Component C Si Mn P S Cr
Minimum Value 0.38 - 0.6 - - 0.9
Maximum Value 0.45 0.4 0.9 0.025 0.035 1.2
41Cr4 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
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) 1000~1200 ≥800 ≥11 ≥30 HRC ①
≥53
Steel: 16mm ≤ d ≤ 40mm; 8mm ≤ t ≤ 20mm Quenching + Tempering (+QT) 900~1100 ≥660 ≥12 ≥35 HRC ①
≥53
≥35
Steel: 40mm ≤ d ≤ 100mm; 20mm ≤ t ≤ 60mm Quenching + Tempering (+QT) 800~950 ≥560 ≥14 ≥40 HRC ①
≥53
≥35
Steel: Processed to a Certain Shearability (+S)
≤255
Steel: Softening Annealing (+A) ≤241
1 Approximate Comparison Table Hardenability Guaranteed Structural Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France Russia United Kingdom
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
40CrH A20405 SCr440H SCr440H SCr440H 5140H H51400 41Cr4H 41Cr4 1.7035 41Cr4 40Х 41Cr4
2 Approximate Comparison Table Hardenability Guaranteed Structural Steel
China United States International Organization for Standardization France Russia United Kingdom
GB ISC ASTM UNS ISO NF EN/NF GOST BS EN/BS
45CrH A20455 5145H H51450 ≈41Cr4H ≈41Cr4 45Х ≈41Cr4

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