METAL RESISTANT TO CARBURISING Russian patent published in 2015 - IPC C22C38/58 C22C38/50 

FIELD: metallurgy.

SUBSTANCE: material contains, wt %: C: from 0.03 to 0.075, Si: from 0.6 to 2.0, Mn: from 0.05 to 2.5, P: 0.04 or less; S: 0.015 or less, Cr: over 16.0 and below 20.0, Ni: 20.0 or over, but below 30.0, Cu: from 0.5 to 10.0, Al: 0.15 or less, Ti: 0.15 or less; N: from 0.005 to 0.20, O: 0.02 or less; Fe and admixtures are the rest. Material can also contain at least one element chosen from: Co, Mo, W, Ta, B, V, Zr, Nb, Hf, Mg, Ca, Y, La, Ce and Nd.

EFFECT: material is resistant to carbonisation, dusting wear and coking, has improved weldability and creep characteristics.

5 cl, 2 tbl, 4 ex