Grade 18MnB4
European Standard Steel Grade 1.5521
Corresponding Standard EN 10263-3-2001
Steel rod,bars and wire for cold heading and cold extrusion - Part 3: Technical delivery conditions for case hardening steels
Classification Alloy Steel
18MnB4 Chemical Element Composition Content (%)
Component C Si Mn P S Cu B
Minimum Value 0.16 - 0.9 - - - 0.0008
Maximum Value 0.2 0.3 1.2 0.025 0.025 0.25 0.005
Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
International Organization for Standardization European Standard
ISO EN Numerical Grade
18MnB4 18MnB4 1.5521
18MnB4 Corresponding Standards(Same grade name, different standards)

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