Stainless steel, chromium-nickel, medium carbon, 20Х25Н19С2 (15H25N19S2L)
Austenitic steel
For the manufacture of parts operating at high temperatures in a heavily loaded state: retorts for annealing, parts of furnaces and boxes for cementation.
Austenitic steel
For the manufacture of parts operating at high temperatures in a heavily loaded state: retorts for annealing, parts of furnaces and boxes for cementation.
Standard | Fe, % | Si, % | Mn, % | Cr, % | Ni, % | P, % | C, % | S, % |
---|---|---|---|---|---|---|---|---|
Standard | Fe, % | Si, % | Mn, % | Cr, % | Ni, % | P, % | C, % | S, % |
GOST 977-88 | 47.935–56.5 | 2–3 | 0.5–1.5 | 23–27 | 18–20 | < 0.035 | < 0.2 | < 0.03 |
Rolling | Standard | Size, mm | Tension | Classifiers | \sigma _{U}, MPa | \sigma_{P}, MPa | \epsilon_L, % | \psi, % | Treatment |
---|---|---|---|---|---|---|---|---|---|
Rolling | Standard | Size, mm | Tension | Classifiers | \sigma _{U}, MPa | \sigma_{P}, MPa | \epsilon_L, % | \psi, % | Treatment |
Castings | GOST 977-88 | < 100 | 491 | 245 | 25 | 28 | Hardening 1100 ° C |
Rolling | Standard | Classifiers | Value, HBW |
---|---|---|---|
Rolling | Standard | Classifiers | Value, HBW |
Castings | GOST 977-88 | 220–240 |
Germany |
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Germany |
1.4848 (GX40CrNiSi25-20) |
Standard | Description |
---|---|
Standard | Description |
GOST 977-88 |
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 |
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 |
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