RWMA Class Alloy Name Form Hardness
(HRB/ HRC)
Electrical Conductivity
 (IACS %)
Tensile Strength
(N/㎟ (Kgf/㎟))
Elongation
 (%)
Application
Class 2 CuCr Bar HRB 75< 75< 42 (412) 15< Mostly for mild steel, high tensile strength steel, and surface treated steel sheet (thin coated).
Class 2 CrZuCu Plate HRB 65< 75< 39 (382) 15<
Class 2 CrZuCu Forging HRB 65< 75< 39 (382) 15<
Class 20 CuAl₂O₃ "DHOM" Bar HRB 80< 75< 490 (50) 65< Mostly for thick coated steel.
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