engleski

Prospects for the use of economically alloyed nickel-free stainless steels

Tests of mechanical properties showed that steel with 0, 08 % C, 1, 5 % Mn, 0, 38 % Si, 13, 30 % Cr is very hard and strong and at the same time is very plastic and possesses high impact elasticity both after casting and hot deformation. The increase of ferrite content from 3-5 to 50 % in the structure of cast steel ХІЗ with a change in its chemical composition reduces its strength at room temperature and 900 ° С. Hot deformation is likely to result in increasing strength and plasticity of the tested steel without preliminary heat treatment. Depending on the content of C, Mn and Si, the metal of the tested steels is resistant to humidity as well as artificial industrial and salt mist atmospheres. Therefore, it is possible to be employed under such conditions instead of austenite chromium- nickel steels grade 18-10.

nickel-free stainless steels ; mechanical properties

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