GE POWER NB 00141 Steel bars, Creep resistant, St12T, X22CrMoV12-1, Rp0.2 700 MPa min high alloy steel bars.
Material properties requirements
Limiting composition in mass % shall be as defined in Table 1. Table 1: Limiting chemical composition
Mechanical property requirements at 23°C ± 5°C shall be as defined in Table 2. Table 2: Limiting mechanical properties
Specific process requirements
Performance Heat treatment Table 3: Heat treatment cycle