
doi: 10.1007/bf00700577
1. We investigated new high-strength low-carbon steel of the 15Kh3G3MF type with a good combination of mechanical properties: σb = (14-13)· 108 Pa; σ0.2 = (10.7-9.8) · 108 Pa; ψ=60–57.5%; δ=14–12%;a1 = 11.3-8.7 daJ/cm2) 2. The optimal heat treatment for this steel is oil quenching from 920±10°+tempering at 200° with cooling in water or in air (σb = 17· 108 Pa, σ0.2 = 109 Pa, ψ=60%, δ=14%,a11 = 11 daJ/cm2).
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