| Performance data Application temperature: <650 ° C Scaling temperature: 850 ° C |
| According to GOST 5949 Note. The norms of mechanical properties apply to samples taken from steel with a diameter or thickness of up to 60 mm. |
| For steel with a diameter or thickness of st. 60 to 100mm, a reduction in elongation of 1abs.% Is allowed, |
| relative narrowing by 5abs.% and impact strength by 4.9 J / cm2 at a rate of less than 78.4 J / cm2 and by 9.8 J / cm2 at a rate of 78.4 J / cm2 or more. |
| For steel with a diameter or thickness of st. 100 to 150mm, a reduction in elongation of 3abs.% Is allowed, |
| a relative narrowing of 10 abs.% and impact strength of 9.8 J / cm2 at a rate of less than 78.4 J / cm2 and at 14.7 J / cm2 at a rate of 78.4 J / cm2 or more. |
| High tempering 810 - 830 ° С, air cooling |
| Yield strength:> 315 MPa Tensile strength:> 710 MPa Elongation:> 20% Elongation:> 35% |
| By agreement M1 (tests at elevated temperature) Note By agreement |
| As agreed M2 (long-term strength test) Note Annealing 810 - 830 ° C, air cooling |
| As agreed M2 (test for long-term strength) Temperature: 600 ° C; Tensile strength per 100h:> 275 MPa |
| Annealing or tempering Hardness HB: 197 - 285 |
| Reference data Note Quenching (normalization) 1175 ° С, cooling in water Vacation 750 ° С, 5 h, cooling in air |
| Reference data Temperature: 600 ° C; Long-term tensile strength for 10,000 hours:> 177 MPa Long-term tensile strength for 100,000 hours:> 147 MPa |
| Reference data Temperature: 600 ° C The creep limit corresponding to 1% of the total deformation for 1000 h:> 177 MPa The creep limit corresponding to 1% of the total deformation for 100 000 h:> 78 MPa |
| Reference data Temperature: 700 ° C; Long-term tensile strength for 10,000 h:> 22 MPa Creep limit corresponding to 1% of the total deformation for 1000 h:> 36 MPa Creep limit corresponding to 1% of the total deformation for 100,000 h:> 15 MPa |
| Calculated Properties Density: 8.13 g / cm3 |
| Note Austenitic steel Heat resistant steel |