Grade 20CrA
Corresponding Standard GJB 2151-1994
Specification for cold-rolled alloy structure steel sheets for aerospace
Classification Alloy Steel
20CrA Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu
Minimum Value 0.18 0.17 0.5 - - 0.7 - -
Maximum Value 0.24 0.37 0.8 0.025 0.025 1 0.3 0.25
20CrA Mechanical Properties
form Heat Treatment or Condition
Tensile Strength
σb
Mpa
Elongation or Extension Rate
δ
%
Cold rolled steel plate Delivery Condition 390~590 ≥18
20CrA Corresponding Standards(Same grade name, different standards)

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