Grade 34CrMoS4
European Standard Steel Grade 1.7226
Corresponding Standard EN 10083-3-2006
Classification Alloy Steel
34CrMoS4 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo
Minimum Value 0.3 - 0.6 - 0.02 0.9 0.15
Maximum Value 0.37 0.4 0.9 0.025 0.04 1.2 0.3
• Elements not quoted in this table shall not be intentionally added to the steel without the agreement of the purchaser, other than for the purpose of finishing the heat and for boron to have its effect on the hardenability. All reasonable precautions shall be taken to prevent the addition of such elements from scrap or other material used in the manufacture which affect the hardenability, mechanical properties and applicability.
Approximate Comparison Table Alloy Steel for Quenching and Tempering
United States International Organization for Standardization Germany France European Standard
ASTM ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade
4135 34CrMoS4 34CrMoS4 1.7226 34CD4u 34CrMoS4 1.7226

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