Grade 38Cr2
1.7003
Old Grade
Corresponding Standard NF EN 10083-3-2006
Tempered alloy structural steel
Classification Alloy Steel
38Cr2 Chemical Element Composition Content (%)
Component C Si Mn P S Cr
Minimum Value 0.35 - 0.5 - - 0.4
Maximum Value 0.42 0.4 0.8 0.025 0.035 0.6
38Cr2 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) 800~950 ≥550 ≥14 ≥35
Steel: 16mm ≤ d ≤ 40mm; 8mm ≤ t ≤ 20mm Quenching + Tempering (+QT) 700~850 ≥450 ≥15 ≥40 ≥35
Steel: 40mm ≤ d ≤ 100mm; 20mm ≤ t ≤ 60mm Quenching + Tempering (+QT) 600~750 ≥350 ≥17 ≥45 ≥35
Steel: Processed to a Certain Shearability (+S) ≤255
Steel: Softening Annealing (+A) ≤207

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