SAE
Steel Number
15B25
Brand/Supplier
South Korea -> POSCO
Classification Alloy Steel
Chemical Element Composition Content (%)
Component C Si Mn P S B
Minimum Value 0.23 0.15 0.8 - - 0.0005
Maximum Value 0.29 0.35 1.1 0.04 0.05 -
Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States International Organization for Standardization European Standard
YB GB JIS ASTM ISO EN
QML25MnB ML25MnB SWRCHB526 15B25 23MnB4 23MnB4

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