Investigation of the properties of heat-resisting steel 0Kh23S2Yu
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Sichromal 12 after deformation has low plastic properties and low impact toughness (less than 1 kg-m/cm2) at room temperature.
At elevated temperatures the plasticity increases sharply: at 100°C δ=20% and ψ=50%. The steel has a discrete ductile-to-brittle temperature of 150–200°C.
Increasing the plasticity of Sichromal 12 requires annealing or quenching. However, quenching is probably impossible to use for massive pieces because of the danger of cracking.
KeywordsElevated Temperature Impact Toughness Plastic Property Massive Piece
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