A. ωC=0.01% ωCr=18% ωNi=9% ωTi≤2.5%

B. ωC=0.1% ωCr=1.8% ωNi=9% ωTi≤0.5%

C. ωC=0.1% ωCr=18% ωNi=9% ωTi≤1.5%

D. ωC=1% ωCr=1.8% ωNi=0.9% ωTi≤1.5%