Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C
Si
Mn
Cr
Mo
V
0.35–0.42
0.80–1.20
0.30–0.50
4.75–5.50
1.20–1.50
0.85–1.15
Mechanical Properties
Hardness HRC (hardened)
42–54
Hardness HB (annealed)
≤235
Hot Strength
Excellent to 600°C
Typical Available Sizes
Round Bar
16mm–400mm dia
Flat Bar
20×10mm–400×150mm
Square Bar
20mm–300mm
Sizes are indicative. Contact seller for exact availability.