Category

Last updated: China GB/T 8732-2014 Steels of Blade for Steam Turbine
Last updated: China GB/T 8732-2014 Steels of Blade for Steam Turbine.

New Garde Old Grades Chemical composition (mass fraction) / %
C Si Mn V S Ni Cr Mo W V Cu Al Ti N Nb+Tab
12Cr13* 1Cr13 0.10-0.15 ≤0.60 ≤0.60 ≤0.030 ≤0.020 ≤0.60 11.50-13.50 -   - ≤0.30 - - - -
20Cr13* 2Cr13 0.16-0.24 ≤0.60 ≤0.60 ≤0.030 ≤0.020 ≤0.60 12.00~14.00 -   - ≤0.30 - - - -
12Cr12Mo* 1Cr12Mo 0.10-0.15 ≤0.50 0.30-0.60 ≤0.030 ≤0.020 0.30-0.60 11.50-13.00 0.30-0.60 - - ≤0.30 - - - -
14Cr11MoV* 1Cr11MoV 0.11-0.18 ≤0.50 ≤0.60 ≤0.030 ≤0.020 ≤0.60 10.00-11.50 0.50-0.70 - 0.25-0.40 ≤0.30 - - - -
15Cr12WMoV* 1Cr12W1MoV 0.12-0.18 ≤0.50 0.50-0.90 ≤0.030 ≤0.020 0.40-0.80 11.00-13.00 0.50-0.70 0.70-1.10 0.15-0.30 ≤0.30   - - -
21Cr12MoV* 2Cr12MoV 0.18-0.24 0.10-0.50 0.30-0.80 ≤0.030 ≤0.020 0.30-0.80 11.00-12.50 0.80-1.20   0.25-0.35 ≤0.30 - - - -
18Cr11NiMoNbVN 2Cr11NiMoNbVN 0.15-0.20 ≤0.50 0.50-0.80 ≤0.020 <0.015 0.30-0.60 10.00-12.00 0.60-0.90 - 0.20-0.30 ≤0.10 ≤0.03 - 0.040-0.090 Nb:0.20-0.60
22Cr12NiWMoV* 2Cr12NiMo1W1V 0.20-0.25 ≤0.50 0.50-1.00 ≤0.030 ≤0.020 0.50-1.00 11.00-12.50 0.90-1.25 0.90-1.25 0.20-0.30 ≤0.30 - - ~ -
05Cr17Ni4Cu4Nb, 0Cr17Ni4Cu4Nb ≤0.055 ≤1.00 ≤0.50 ≤0.030 ≤0.020 3.80-4.50 15.00-16.00 - - - 3.00-3.70 ≤0.050 ≤0.050 ≤0.050 0.15-0.35
14Cr12Ni2WMoV 1Cr12Ni2WIMo1V 0.11-0.16 0.10-0.35 0.40-0.80 ≤0.025 ≤0.020 2.20-2.50 10.50-12.50 1.00-1.40 1.00-1.40 0.15-0.35 - ≤0.05   - -
14Cr12Ni3Mo2VN 1Cr12Ni3Mo2VN 0.10-0,17 ≤0.30 0.50-0.90 ≤0.020 ≤0.015 2.00-3.00 11.00-12.75 1.50-2.00 - 0.25-0.40 ≤0.15 ≤0.04 ≤0.02 0.010-0.050 -
14CrUW2MoNiVNbN 1Cr11MoNiW2VNbN 0.12-0.16 ≤0.15 0.30-0.70 ≤0.01S ≤0.015 0.35-0.6i5 10.00-11.00 0.35-0.50 1.50-1.90 0.14-0.20 ≤0.10 - - 0.040-0.080 0.05-0.11