Review Article
Metallurgical and Stress State Factors Which Affect the Creep and Fracture Behavior of 9% Cr Steels
Table 2
Chemical composition of examined Grade 91 heats with controlled additions of impurity/tramp elements P, S, Cu, Sn, and Sb [
27].
| | C | Si | Mn | P | S | Cu | Ni | Cr | Mo | V | Nb | Sn | Sb | N |
| A | 0.10 | 0.42 | 0.40 | 0.012 | 0.001 | — | 0.06 | 8.53 | 1.00 | 0.21 | 0.080 | — | — | 0.054 | P1 | 0.09 | 0.30 | 0.38 | 0.006 | 0.007 | 0.01 | 0.09 | 8.63 | 0.94 | 0.24 | 0.060 | 0.003 | 0.004 | 0.031 | P2 | 0.10 | 0.30 | 0.38 | 0.021 | 0.007 | 0.01 | 0.08 | 8.66 | 0.94 | 0.23 | 0.061 | 0.003 | 0.004 | 0.032 | P3 | 0.09 | 0.31 | 0.38 | 0.030 | 0.008 | 0.01 | 0.09 | 8.64 | 0.95 | 0.24 | 0.061 | 0.003 | 0.004 | 0.033 | S1 | 0.10 | 0.31 | 0.38 | 0.010 | 0.002 | 0.01 | 0.09 | 8.61 | 0.95 | 0.24 | 0.058 | 0.003 | 0.004 | 0.032 | S2 | 0.10 | 0.30 | 0.37 | 0.010 | 0.014 | 0.01 | 0.09 | 8.64 | 0.95 | 0.24 | 0.061 | 0.003 | 0.004 | 0.033 | S3 | 0.10 | 0.30 | 0.38 | 0.009 | 0.024 | 0.01 | 0.09 | 8.62 | 0.95 | 0.24 | 0.059 | 0.003 | 0.004 | 0.034 | Cu1 | 0.10 | 0.34 | 0.39 | 0.008 | 0.008 | 0.05 | 0.09 | 8.62 | 0.89 | 0.24 | 0.062 | 0.004 | 0.005 | 0.031 | Cu2 | 0.10 | 0.34 | 0.39 | 0.009 | 0.008 | 0.15 | 0.09 | 8.58 | 0.90 | 0.24 | 0.064 | 0.005 | 0.005 | 0.031 | Cu3 | 0.10 | 0.34 | 0.39 | 0.008 | 0.008 | 0.27 | 0.09 | 8.51 | 0.90 | 0.24 | 0.063 | 0.004 | 0.005 | 0.034 | Sn1 | 0.10 | 0.33 | 0.39 | 0.008 | 0.008 | 0.01 | 0.09 | 8.63 | 0.93 | 0.24 | 0.063 | 0.011 | 0.005 | 0.033 | Sn2 | 0.10 | 0.33 | 0.39 | 0.009 | 0.008 | 0.01 | 0.09 | 8.63 | 0.93 | 0.24 | 0.063 | 0.056 | 0.005 | 0.033 | Sn3 | 0.10 | 0.33 | 0.39 | 0.008 | 0.008 | 0.01 | 0.10 | 8.64 | 0.94 | 0.24 | 0.063 | 0.110 | 0.005 | 0.037 | Sb1 | 0.10 | 0.34 | 0.38 | 0.009 | 0.007 | 0.01 | 0.09 | 8.65 | 0.92 | 0.24 | 0.056 | 0.004 | 0.011 | 0.032 | Sb2 | 0.10 | 0.34 | 0.38 | 0.009 | 0.007 | 0.01 | 0.09 | 8.73 | 0.92 | 0.24 | 0.057 | 0.004 | 0.053 | 0.032 | Sb3 | 0.10 | 0.34 | 0.38 | 0.009 | 0.008 | 0.01 | 0.09 | 8.66 | 0.91 | 0.23 | 0.056 | 0.004 | 0.110 | 0.034 |
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Note: the “A” heat is the control heat and may be identified in associated figures as “P0” or “Cu0”, and so on.
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