35Mn High Strength Steel

The strength and hardenability of 35Mn steel plate is higher than that of 30Mn, and the plasticity during cold deformation is medium and good machinability, but the weldability is poor. It should be used after quenching and tempering. Suitable for rotating shafts. Bolts. Nuts, screws, etc, mandrel. Gear.

Chemical composition of 35Mn high manganese steel:

C: 0.32 ~ 0.40 Si: 0.17 ~ 0.37 Mn: 0.70 ~ 1.00S: ≤0.035

P: ≤ 0.035Cr: ≤ 0.25Ni: ≤ 0.30Cu: ≤0.25

Mechanical properties of 35Mn high manganese steel:

Tensile strength σ B (MPa) : ≥560(57)

Yield strength σ S (MPa) : ≥335(34)

Elongation δ5 (%) : ≥18

Section shrinkage ψ (%) : ≥45

Impact energy Akv (J) : ≥55

Impact toughness value α kV (J/cm2) : ≥69(7)

Hardness: no heat treatment ≤229HB; Annealing steel 197 hb or less

Sample size: The sample size is 25mm

Specifications for heat treatment of 35Mn high manganese steel:

1. Heat treatment specifications and metallographic organization:

Specification for heat treatment: normalizing,870℃; Quenching, 850 ℃; Tempering, 600 ℃.

2. delivery state: no heat treatment or heat treatment (annealing, normalizing or high temperature tempering) state of delivery. Delivery under heat treatment shall be indicated in the contract; otherwise, delivery without heat treatment shall be considered.

35Mn High Strength Steel