Grade SM55
Corresponding Standard YB /T 107-2013
Hot-rolled steel plates for plastic mould
Classification Carbon Steel
SM55 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu More
Minimum Value 0.52 0.17 0.5 - - - - - Ni+Cr≤0.35%
Maximum Value 0.58 0.37 0.8 0.025 0.025 0.2 0.2 0.3
Approximate Comparison Table Plastic Mold Steel
China Japan United States International Organization for Standardization Germany Sweden
YB GB ISC JIS ASTM/AISI ISO DIN EN/DIN W-Nr. SS
SM55 SM55 T10550 S55C 1055 C55E4 C55E 1.1203 1665
SM55 Corresponding Standards(Same grade name, different standards)

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