15X5M (H5M)
For pipes, valves, fasteners and other parts that are resistant to oxidation.
Pipes, valves, fittings and other items that are required oxidation resistance at temperatures up to 600−650 ° C .;
For pipes, valves, fasteners and other parts that are resistant to oxidation.
Pipes, valves, fittings and other items that are required oxidation resistance at temperatures up to 600−650 ° C .;
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | V, % | P, % | C, % | S, % | Mo, % | W, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | V, % | P, % | C, % | S, % | Mo, % | W, % |
| GOST 20072-74 | 91.015–95.05 | < 0.5 | < 0.5 | 4.5–6 | < 0.03 | < 0.2 | < 0.6 | < 0.05 | < 0.03 | < 0.15 | < 0.025 | 0.45–0.6 | < 0.3 |
| Temperature, °C | E\cdot 10^{9}, MPa | \alpha\cdot 10^{6}, K^{-1} | \varkappa, \frac{W}{m\cdot K} | \rho, \frac{kg}{m^3} | c\cdot 10^{-3}, \frac{J}{kg\cdot K} | R\cdot 10^{-6}, \Omega\cdot m |
|---|---|---|---|---|---|---|
| Temperature, °C | E\cdot 10^{9}, MPa | \alpha\cdot 10^{6}, K^{-1} | \varkappa, \frac{W}{m\cdot K} | \rho, \frac{kg}{m^3} | c\cdot 10^{-3}, \frac{J}{kg\cdot K} | R\cdot 10^{-6}, \Omega\cdot m |
| 20 | 211 | 7750 | 0.43 | |||
| 100 | 11.3 | 37 | 7730 | 0.483 | ||
| 200 | 11.6 | 36 | 7700 | |||
| 300 | 11.9 | 35 | 7670 | |||
| 400 | 178 | 12.2 | 34 | 7640 | ||
| 500 | 145 | 12.3 | 33 | 7610 | ||
| 600 | 102 | 12.5 | 7580 |
| Rolling | Standard | Size, mm | Tension | Classifiers | \sigma _{U}, MPa | \sigma_{P}, MPa | \epsilon_L, % | \psi, % | KCU\cdot 10^{3}, \frac{J}{m^2} | Treatment |
|---|---|---|---|---|---|---|---|---|---|---|
| Rolling | Standard | Size, mm | Tension | Classifiers | \sigma _{U}, MPa | \sigma_{P}, MPa | \epsilon_L, % | \psi, % | KCU\cdot 10^{3}, \frac{J}{m^2} | Treatment |
| Pipes are hot deformed. | GOST 550-75 | 392 | 216 | 22 | 50 | 1180 | ||||
| Rod | GOST 20072-74 | 90 | 390 | 215 | 22 | 50 | 1180 | Annealing 840-860 ° C, furnace cooled | ||
| The plates | GOST 7350-77 | 470 | 235 | 18 | Annealing 840-870 ° C, air cooling |
| Rolling | Standard | Classifiers | Value, HBW |
|---|---|---|---|
| Rolling | Standard | Classifiers | Value, HBW |
| Alloy | GOST 20072-74 | annealing, hot rolling | 217 |
| Pipes are hot deformed. | GOST 550-75 | 1700 |
| Standard | Description |
|---|---|
| Standard | Description |
| GOST 20072-74 |
| Parameter | Units of measurement | Description |
|---|---|---|
| Parameter | Units of measurement | Description |
| E\cdot 10^{9} | MPa | Elastic modulus |
| \alpha\cdot 10^{6} | K^{-1} | Coefficient of thermal (linear) expansion (range 20°C–T) |
| \varkappa | \frac{W}{m\cdot K} | Coefficient of thermal conductivity (the heat capacity of the material) |
| \rho | \frac{kg}{m^3} | The density of the material |
| c\cdot 10^{-3} | \frac{J}{kg\cdot K} | The specific heat of the material (range 20°C–T) |
| R\cdot 10^{-6} | \Omega\cdot m | Electrical resistivity |
| Parameter | Units of measurement | Description |
|---|---|---|
| Parameter | Units of measurement | Description |
| \sigma _{U} | MPa | Ultimate tensile strength |
| \sigma_{P} | MPa | Proportionality limit |
| \epsilon_L | % | Elongation at break (longitudinal) |
| \psi | % | Reduction in cross section on fracture |
| KCU\cdot 10^{3} | \frac{J}{m^2} | Impact toughness |
| Parameter | Units of measurement | Description |
|---|---|---|
| Parameter | Units of measurement | Description |
| no limits | Welding is performed without heating and without subsequent heat treatment | |
| Boundedly welded | Welding is possible with heating up to 100–120 °C and subsequent heat treatment | |
| Difficult to weld | For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing | |
| Not applicable for welded structures |