Grade Q420D
China ISC L04204
Corresponding Standard GB /T 16270-1996
High-Strength Structural Steel Plates and Strips:Products Supplied in The Heat-Treated or Controlled Rolled Condition
Classification Alloy Steel
Q420D Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo Ti V Nb
Minimum Value - - 1 - - - - - - - -
Maximum Value 0.18 0.55 1.6 0.03 0.03 0.3 0.7 0.2 0.2 0.1 0.06
Approximate Comparison Table Structural, Pressure Vessel and Engineering Steels
China Japan United States International Organization for Standardization Germany France European Standard Russia
GB JIS ASTM ISO DIN EN/DIN NF EN/NF EN Numerical Grade GOST
Q420D SM490A
SM490C
A255Gr.D
A633E
E420 StE420 E420R S420N
FeE420KGN
1.8902 16G2AF
Q420D Corresponding Standards(Same grade name, different standards)

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