| Performance data Application temperature: <780 ° C Scaling temperature: 950 ° 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. |
| Annealing 900 - 950 ° С, cooling with a furnace Quenching 1000 - 1020 ° С in oil Tempering 600 - 700 ° С in air |
| According to GOST 5949 Yield strength:> 590 MPa Tensile strength:> 740 MPa Elongation:> 15% |
| GOST 5949 Impact strength KCU at 20 ° C:> 59 J / cm2 Relative narrowing:> 45% |
| According to GOST 5949 Annealing or tempering Hardness HB: <229 |
| According to GOST 5949 As agreed M1 (tests at elevated temperature) Note By agreement |
| According to GOST 5949 Reference data Note Quenching (normalization) 1000 ° С, oil cooling Vacation 680 ° С, 10 h, air cooling |
| According to GOST 5949 Temperature: 550 ° C; Long-term tensile strength for 10,000 h:> 235 MPa Long-term tensile strength for 100,000 h:> 196 MPa Creep strength corresponding to 1% of the total deformation per 100,000 h:> 98 MPa |
| According to GOST 5949 Temperature: 565 ° C; Long-term tensile strength for 10,000 h:> 216 MPa Long-term tensile strength for 100,000 h:> 167 MPa Creep strength corresponding to 1% of the total deformation per 100,000 h:> 88 MPa |
| According to GOST 5949 Temperature: 580 ° C; Long-term tensile strength for 10,000 h:> 157 MPa Long-term tensile strength for 100,000 h:> 137 MPa Creep strength corresponding to 1% of the total deformation per 100,000 h:> 69 MPa |
| Calculated Properties Density: 7.88 g / cm3 |
| Note Martensitic Ferritic Steel Heat Resistant Steel |