60Mn high-quality carbon structural steel has slightly higher strength, hardness, elasticity and hardenability, good machinability in the annealed state, and poor cold deformation plasticity and weldability. It is sensitive to overheating and tends to be brittle to tempering. Suitable for large-size spiral springs, leaf springs, various round flat springs, spring rings, cold drawn steel wires and springs.
Mechanical properties:
Tensile strength σb (MPa): ≥695
Yield strength σs (MPa): ≥410
Elongation δ5/(%): ≥11
Reduction of area ψ/(%): ≥35
Hardness of steel in delivery state HBS 10/3000: unheated steel ≤269 annealed steel ≤229
Recommended heat treatment/℃ Normalizing 810
Sample size: sample blank size/mm: 25