Grade 20R
China ISC U50204
Corresponding Standard GB 6654-1996
Steel Plates for Pressure Vessels
Classification Carbon Steel
20R Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu
Minimum Value - 0.15 0.4 - - - - -
Maximum Value 0.2 0.3 0.9 0.035 0.03 0.3 0.3 0.3

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