Mác thép 90W9Cr4VMo có:

0,8%Cácbon, 9%Wonfram 4%Crom, 2% Vanadi 1% Môlipdden

0,8%Côban, 0.9%Wonfram 4%Crom, 2% Vanadi 1% Môlipdden

0,8%Cácbon, 9%Wonfram 40%Crom, 2% Vanadi 1% Môlipdden

0,9%Cácbon, 9%Wonfram 4%Crom, 1% Vanadi 1% Môlipdden