Review Article

Physical Metallurgy of Modern Creep-Resistant Steel for Steam Power Plants: Microstructure and Phase Transformations

Table 5

Nominal chemical compositions (wt%) of ferritic steels.

SteelsCSiMnCrMoWCoVNbBNOthers

2Cr
 T220.120.30.452.251.0
 HCM2S0.060.200.452.250.11.600.250.050.003

9Cr
 T90.120.600.459.001.0
 HCM9M0.070.300.459.002.0
 T910.100.400.459.001.00.200.080.05
 NF6160.070.060.459.000.51.800.200.050.0040.06
 Tempaloy F-90.060.500.609.001.00.250.400.005
 EM120.100.400.109.002.00.300.40

12Cr
 HT910.200.400.6012.01.00.250.5Ni
 HT90.200.400.6012.01.00.50.250.5Ni
 HCM120.100.300.5512.01.01.00.250.050.03
 HCM12A0.110.100.6012.00.42.00.200.050.0030.061.0Cu
 NF120.080.200.5011.00.22.62.50.200.070.0040.05
 SAVE120.100.300.2011.03.03.00.200.070.040.07Ta
0.04Nd