| Products according to GOST 20072 Hot-rolled and forged products Heat-treated products Hardness HB: <269 Imprint diameter:> 3.7 mm |
| Oil quenching and tempering Note For bars with a diameter or thickness over 90 mm to 150 mm, a reduction in elongation of 2 abs.% Is allowed, |
| relative narrowing by 5 abs.% and impact strength by 10 rel.%. For bars with a diameter or thickness of 151 mm and above, a reduction in elongation of 3 abs.% Is allowed, |
| relative narrowing by 10 abs.% and impact strength by 15 rel.% |
| In steel of the highest quality category, the temporary tensile strength is limited: the minimum allowable value should correspond to the indicated values, and the maximum should not be more than the minimum by 196 N / mm2 |
| Diameter: <90 mm; Yield strength:> 735 MPa Tensile strength:> 880 MPa Elongation:> 12% Elongation:> 40% |
| According to customer demand Diameter: <90 mm; Impact strength KCU at 20 ° C:> 59 J / cm2 |
| Temperature: 550 ° C; Tensile strength per 100h:> 343 MPa |
| Values of creep and long-term strength Temperature: 500 ° C; Long-term tensile strength for 10,000 hours:> 333 MPa Long-term tensile strength for 100,000 hours:> 294 MPa |
| Values of creep and long-term strength Temperature: 500 ° C; Creep limit corresponding to 1% of the total deformation per 100,000 h:> 147 MPa Creep limit corresponding to 1% of the total deformation for 10,000 h:> 177 MPa |
| Values of creep and long-term strength Temperature: 550 ° C; Long-term strength for 10,000 hours:> 196 MPa Long-term strength for 100,000 hours:> 157 MPa |
| Values of creep and long-term strength Temperature: 550 ° C; Creep limit corresponding to 1% of the total deformation per 100,000 h:> 98 MPa Creep limit corresponding to 1% of the total deformation for 10,000 h:> 127 MPa |
| Creep and long-term strength values Temperature: 580 ° С; Long-term tensile strength for 10,000 h:> 137 MPa Long-term tensile strength for 100,000 h:> 98 MPa Creep strength corresponding to 1% of the total deformation for 100,000 h:> 49 MPa |
| Forgings according to OST 108.958.04-85 Strength category KP67 Longitudinal samples Thickness: <200 mm; Yield strength:> 655 MPa; Temporary resistance:> 785 MPa. |
| Forgings according to OST 108.958.04-85 Strength category KP67 Longitudinal samples Thickness: <200 mm; Relative elongation:> 13% Hardness HB: 241 - 302 Impact strength KCU at 20 ° C:> 49 J / cm2 Relative narrowing:> 40% |
| Forgings according to OST 108.958.04-85 Strength category KP67 After heat treatment Thickness: <200 mm; HRC Hardness: 293 - 331 |
| Forgings according to OST 108.958.04-85 Strength category KP67 After heat treatment Thickness: 200 - 300 mm; HRCE Hardness: 241 - 302 |
| According to TU 3600-010-88626180-2012 Strength class K42 Yield strength:> 245 MPa Tensile strength:> 412 MPa Elongation:> 21% |
| Strength class K46 Yield strength:> 274 MPa Tensile strength:> 451 MPa Elongation:> 21% |
| Strength grade K48 Yield strength:> 305 MPa Tensile strength:> 471 MPa Elongation:> 21% |
| Strength class K50 Yield strength:> 324 MPa Tensile strength:> 490 MPa Elongation:> 20% |
| Strength class K52 Yield strength:> 353 MPa Tensile strength:> 510 MPa Elongation:> 20% |
| Strength class K54 Yield strength:> 373 MPa Tensile strength:> 530 MPa Elongation:> 20% |
| Strength class K56 Yield strength:> 392 MPa Tensile strength:> 549 MPa Elongation:> 19% |
| Strength class K60 Yield strength:> 441 MPa Tensile strength:> 589 MPa Elongation:> 19% |
| Impact test Base metal Wall thickness: <12 mm; KCU impact strength at -60 ° C:> 34.3 J / cm2 KCU impact strength at 20 ° C:> 53.9 J / cm2 KCU impact strength at -40 ° C:> 39.2 J / cm2 |
| Impact Testing Base Metal Wall Thickness: 12 - 25 mm; KCU impact strength at -60 ° C:> 39.2 J / cm2 KCU impact strength at 20 ° C:> 58.8 J / cm2 KCU impact strength at -40 ° C:> 49 J / cm2 |
| Impact test Base metal Wall thickness:> 25 mm; KCU impact strength at -60 ° C:> 39.2 J / cm2 KCU impact strength at 20 ° C:> 63.7 J / cm2 KCU impact strength at -40 ° C:> 58.8 J / cm2 |
| Weldability KCU impact strength at -60 ° C:> 39.2 J / cm2 KCU impact strength at 20 ° C:> 58.8 J / cm2 KCU impact strength at -40 ° C:> 49 J / cm2 |
| According to TU 3600-010-78786272-2007 Yield strength:> 589 MPa Tensile strength:> 716 MPa Elongation:> 9% Impact strength KCU at 20 ° C:> 50 J / cm2 Relative narrowing:> 30% |
| Weldability By NAKS Group: M03 (W03) |
| Operational characteristics According to GOST R 54803-2011 Forgings Application temperature: -40 - 510 ° C |
| Performance characteristics According to STO 00220227-006-2010 Application temperature: -50 - 510 ° C |
| Physical properties Elastic modulus (Young's modulus): 204 GPa Density: 7.79 g / cm3 Linear expansion coefficient: 9.8 - 15.0 (10 ^ 6) / ° С Thermal conductivity at 300 ° C: 29.26 W / m * K |
| Physical properties Thermal conductivity at 200 ° C: 30.932 W / m * K Thermal conductivity at 100 ° C: 31.768 W / m * K Thermal conductivity at 400 ° C: 28 W / m * K Thermal conductivity at 500 ° C: 27.17 W / m * K |
| Physical properties Thermal conductivity at 600 ° C: 25.916 W / m * K Thermal conductivity at 700 ° C: 25.08 W / m * K |
| According to TU 14-3R-251-2007 Longitudinal samples Yield strength:> 490 MPa Tensile strength:> 784 MPa Elongation:> 14% |
| According to TU 14-3R-251-2007 Longitudinal samples Hardness HB: 241 - 285 Impact strength KCU at 20 ° C:> 59 J / cm2 |
| According to TU 14-3R-251-2007 Transverse samples Yield strength:> 490 MPa Tensile strength:> 784 MPa Elongation:> 12% |
| According to TU 14-3R-251-2007 Transverse samples Hardness HB: 241 - 285 Impact strength KCU at 20 ° C:> 49 J / cm2 |