Grade 5145
Corresponding Standard ASTM A519/A519M-2024
Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing
Classification Alloy Steel
5145 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni * Cu * Mo *
Minimum Value 0.43 0.15 0.7 - - 0.7 - - -
Maximum Value 0.48 0.35 0.9 0.04 0.04 0.9 0.25 0.35 0.1
1 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States
GB JIS ASTM
ML45Cr SCr445 5145
2 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States
YB GB JIS ASTM
QML45Cr ML45Cr SCr445 5145

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