Propiedades
General
Mecánica
| Property | Temperature | Value | Comment |
|---|---|---|---|
Alargamiento A2 | 23.0 °C | 40 % Show Supplier Material materials with Alargamiento A2 of 40 % | min. |
Creep strength 10^4 cycles | 500.0 °C | 500 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 500 MPa | at 10000h |
550.0 °C | 380 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 380 MPa | at 10000h | |
600.0 °C | 310 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 310 MPa | at 10000h | |
650.0 °C | 230 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 230 MPa | at 10000h | |
700.0 °C | 145 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 145 MPa | at 10000h | |
750.0 °C | 85 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 85 MPa | at 10000h | |
800.0 °C | 50 MPa Show Supplier Material materials with Creep strength 10^4 cycles of 50 MPa | at 10000h | |
Creep strength 10^5 cycles | 500.0 °C | 405 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 405 MPa | at 100000h |
550.0 °C | 325 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 325 MPa | at 100000h | |
600.0 °C | 230 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 230 MPa | at 100000h | |
650.0 °C | 155 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 155 MPa | at 100000h | |
700.0 °C | 95 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 95 MPa | at 100000h | |
750.0 °C | 50 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 50 MPa | at 100000h | |
800.0 °C | 25 MPa Show Supplier Material materials with Creep strength 10^5 cycles of 25 MPa | at 100000h | |
Dureza Vickers | 23.0 °C | 185 [-] Show Supplier Material materials with Dureza Vickers of 185 [-] | |
Elongación | 23.0 °C | 40 % Show Supplier Material materials with Elongación of 40 % | min. |
Límite elástico Rp 0,2 | 20.0 °C | 310 MPa Show Supplier Material materials with Límite elástico Rp 0,2 of 310 MPa | min. |
100.0 °C | 250 MPa Show Supplier Material materials with Límite elástico Rp 0,2 of 250 MPa | min. | |
200.0 °C | 225 MPa Show Supplier Material materials with Límite elástico Rp 0,2 of 225 MPa | min. | |
300.0 °C | 210 MPa Show Supplier Material materials with Límite elástico Rp 0,2 of 210 MPa | min. | |
400.0 °C | 200 MPa Show Supplier Material materials with Límite elástico Rp 0,2 of 200 MPa | min. | |
500.0 °C | 195 MPa Show Supplier Material materials with Límite elástico Rp 0,2 of 195 MPa | min. | |
600.0 °C | 180 MPa Show Supplier Material materials with Límite elástico Rp 0,2 of 180 MPa | min. | |
700.0 °C | 180 MPa Show Supplier Material materials with Límite elástico Rp 0,2 of 180 MPa | min. | |
800.0 °C | 180 MPa Show Supplier Material materials with Límite elástico Rp 0,2 of 180 MPa | min. | |
Límite elástico Rp0.1 | 20.0 °C | 355 MPa Show Supplier Material materials with Límite elástico Rp0.1 of 355 MPa | min. |
100.0 °C | 315 MPa Show Supplier Material materials with Límite elástico Rp0.1 of 315 MPa | min. | |
200.0 °C | 255 MPa Show Supplier Material materials with Límite elástico Rp0.1 of 255 MPa | min. | |
300.0 °C | 240 MPa Show Supplier Material materials with Límite elástico Rp0.1 of 240 MPa | min. | |
400.0 °C | 225 MPa Show Supplier Material materials with Límite elástico Rp0.1 of 225 MPa | min. | |
500.0 °C | 215 MPa Show Supplier Material materials with Límite elástico Rp0.1 of 215 MPa | min. | |
600.0 °C | 205 MPa Show Supplier Material materials with Límite elástico Rp0.1 of 205 MPa | min. | |
700.0 °C | 195 MPa Show Supplier Material materials with Límite elástico Rp0.1 of 195 MPa | min. | |
800.0 °C | 195 MPa Show Supplier Material materials with Límite elástico Rp0.1 of 195 MPa | min. | |
Módulo elástico | 20.0 °C | 197 GPa Show Supplier Material materials with Módulo elástico of 197 GPa | |
100.0 °C | 191 GPa Show Supplier Material materials with Módulo elástico of 191 GPa | ||
200.0 °C | 183 GPa Show Supplier Material materials with Módulo elástico of 183 GPa | ||
300.0 °C | 175 GPa Show Supplier Material materials with Módulo elástico of 175 GPa | ||
400.0 °C | 168 GPa Show Supplier Material materials with Módulo elástico of 168 GPa | ||
500.0 °C | 160 GPa Show Supplier Material materials with Módulo elástico of 160 GPa | ||
600.0 °C | 153 GPa Show Supplier Material materials with Módulo elástico of 153 GPa | ||
700.0 °C | 145 GPa Show Supplier Material materials with Módulo elástico of 145 GPa | ||
800.0 °C | 137 GPa Show Supplier Material materials with Módulo elástico of 137 GPa | ||
Resistencia a la tracción | 20.0 °C | 680 MPa Show Supplier Material materials with Resistencia a la tracción of 680 MPa | min. |
100.0 °C | 625 MPa Show Supplier Material materials with Resistencia a la tracción of 625 MPa | min. | |
200.0 °C | 575 MPa Show Supplier Material materials with Resistencia a la tracción of 575 MPa | min. | |
300.0 °C | 560 MPa Show Supplier Material materials with Resistencia a la tracción of 560 MPa | min. | |
400.0 °C | 550 MPa Show Supplier Material materials with Resistencia a la tracción of 550 MPa | min. | |
500.0 °C | 535 MPa Show Supplier Material materials with Resistencia a la tracción of 535 MPa | min. | |
600.0 °C | 500 MPa Show Supplier Material materials with Resistencia a la tracción of 500 MPa | min. | |
700.0 °C | 455 MPa Show Supplier Material materials with Resistencia a la tracción of 455 MPa | min. | |
800.0 °C | 355 MPa Show Supplier Material materials with Resistencia a la tracción of 355 MPa | min. | |
Aplicaciones térmicas
| Property | Temperature | Value | Comment |
|---|---|---|---|
Calor específico | 20.0 °C | 470 J/(kg·K) Show Supplier Material materials with Calor específico of 470 J/(kg·K) | |
100.0 °C | 485 J/(kg·K) Show Supplier Material materials with Calor específico of 485 J/(kg·K) | ||
200.0 °C | 500 J/(kg·K) Show Supplier Material materials with Calor específico of 500 J/(kg·K) | ||
300.0 °C | 520 J/(kg·K) Show Supplier Material materials with Calor específico of 520 J/(kg·K) | ||
400.0 °C | 535 J/(kg·K) Show Supplier Material materials with Calor específico of 535 J/(kg·K) | ||
500.0 °C | 555 J/(kg·K) Show Supplier Material materials with Calor específico of 555 J/(kg·K) | ||
600.0 °C | 570 J/(kg·K) Show Supplier Material materials with Calor específico of 570 J/(kg·K) | ||
700.0 °C | 585 J/(kg·K) Show Supplier Material materials with Calor específico of 585 J/(kg·K) | ||
800.0 °C | 605 J/(kg·K) Show Supplier Material materials with Calor específico of 605 J/(kg·K) | ||
900.0 °C | 620 J/(kg·K) Show Supplier Material materials with Calor específico of 620 J/(kg·K) | ||
1000.0 °C | 640 J/(kg·K) Show Supplier Material materials with Calor específico of 640 J/(kg·K) | ||
1100.0 °C | 665 J/(kg·K) Show Supplier Material materials with Calor específico of 665 J/(kg·K) | ||
Coeficiente de dilatación térmica | 100.0 °C | 1.45E-5 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 1.45E-5 1/K | for 30°C to the mentioned temperature |
200.0 °C | 1.5E-5 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 1.5E-5 1/K | for 30°C to the mentioned temperature | |
300.0 °C | 1.6E-5 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 1.6E-5 1/K | for 30°C to the mentioned temperature | |
400.0 °C | 1.6E-5 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 1.6E-5 1/K | for 30°C to the mentioned temperature | |
500.0 °C | 1.65E-5 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 1.65E-5 1/K | for 30°C to the mentioned temperature | |
600.0 °C | 1.65E-5 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 1.65E-5 1/K | for 30°C to the mentioned temperature | |
700.0 °C | 1.7E-5 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 1.7E-5 1/K | for 30°C to the mentioned temperature | |
800.0 °C | 1.7E-5 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 1.7E-5 1/K | for 30°C to the mentioned temperature | |
900.0 °C | 1.75E-5 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 1.75E-5 1/K | for 30°C to the mentioned temperature | |
1000.0 °C | 1.8E-5 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 1.8E-5 1/K | for 30°C to the mentioned temperature | |
1100.0 °C | 1.85E-5 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 1.85E-5 1/K | for 30°C to the mentioned temperature | |
Conductividad térmica | 20.0 °C | 12 W/(m·K) Show Supplier Material materials with Conductividad térmica of 12 W/(m·K) | |
100.0 °C | 13 W/(m·K) Show Supplier Material materials with Conductividad térmica of 13 W/(m·K) | ||
200.0 °C | 15 W/(m·K) Show Supplier Material materials with Conductividad térmica of 15 W/(m·K) | ||
300.0 °C | 16 W/(m·K) Show Supplier Material materials with Conductividad térmica of 16 W/(m·K) | ||
400.0 °C | 18 W/(m·K) Show Supplier Material materials with Conductividad térmica of 18 W/(m·K) | ||
500.0 °C | 20 W/(m·K) Show Supplier Material materials with Conductividad térmica of 20 W/(m·K) | ||
600.0 °C | 22 W/(m·K) Show Supplier Material materials with Conductividad térmica of 22 W/(m·K) | ||
700.0 °C | 23 W/(m·K) Show Supplier Material materials with Conductividad térmica of 23 W/(m·K) | ||
800.0 °C | 25 W/(m·K) Show Supplier Material materials with Conductividad térmica of 25 W/(m·K) | ||
900.0 °C | 27 W/(m·K) Show Supplier Material materials with Conductividad térmica of 27 W/(m·K) | ||
1000.0 °C | 28 W/(m·K) Show Supplier Material materials with Conductividad térmica of 28 W/(m·K) | ||
1100.0 °C | 30 W/(m·K) Show Supplier Material materials with Conductividad térmica of 30 W/(m·K) | ||
Temperatura máx. de funcionamiento | 750 °C Show Supplier Material materials with Temperatura máx. de funcionamiento of 750 °C | ||
Eléctrico
| Property | Temperature | Value |
|---|---|---|
Resistividad eléctrica | 20.0 °C | 9.8E-7 Ω·m Show Supplier Material materials with Resistividad eléctrica of 9.8E-7 Ω·m |
Chemical properties
| Property | Value | Comment | |
|---|---|---|---|
Azufre | 0.015 % Show Supplier Material materials with Azufre of 0.015 % | max. | |
Carbono | 0.1 % Show Supplier Material materials with Carbono of 0.1 % | max. | |
Cobalto | 1.5 % Show Supplier Material materials with Cobalto of 1.5 % | ||
Cobre | 3 % Show Supplier Material materials with Cobre of 3 % | ||
Cromo | 22.5 % Show Supplier Material materials with Cromo of 22.5 % | ||
Fósforo | 0.03 % Show Supplier Material materials with Fósforo of 0.03 % | max. | |
Hierro | Balance | ||
Manganeso | 0.5 % Show Supplier Material materials with Manganeso of 0.5 % | ||
Niobio | 0.5 % Show Supplier Material materials with Niobio of 0.5 % | ||
Nitrógeno | 0.23 % Show Supplier Material materials with Nitrógeno of 0.23 % | ||
Níquel | 25 % Show Supplier Material materials with Níquel of 25 % | ||
Silicona | 0.2 % Show Supplier Material materials with Silicona of 0.2 % | ||
Wolframio | 3.6 % Show Supplier Material materials with Wolframio of 3.6 % | ||
Technological properties
| Property | ||
|---|---|---|
| Application areas | The high creep strength of Sanicro® 25 combined with its good corrosion resistance makes it an extremely suitable option for use in superheaters and reheaters in advanced coal fired power boilers. Use in high temperature applications in other types of steam boilers employing different fuel types is also possible. The material has been specifically developed for use at material temperatures up to around 700°C (1300°F). | |
| Certifications | Approvals: | |
| Cold Forming | Cold-bending should be followed by solution annealing if the cold deformation is >20% or the R/D ratio is ≤2.5, if the service temperature is in the creep range. For best corrosion properties at high temperatures it is recommended that solution annealing should be performed, even at lower degrees of cold forming. See also the Heat treatment section. | |
| Corrosion properties | Hot corrosion: Sanicro® 25 has very good resistance to hot corrosion in a coal ash environment. Oxidation tests in air, performed as both isothermal tests at 650°C (1202°F) and 750°C (1382°F) for 1000, 2000 and 3000 hours and discontinuous tests with cooling to room temperature after 24, 50, 100, 200, 500, 1000, 1500, 2000 and 3000 hours, show a very low mass rate change. Oxidation tests in aqueous steam at 600°C (1112°F) and 700°C (1292°F) for 500 and 1000 hours respectively, showed that Sanicro® 25 has very good oxidation resistance. | |
| Heat Treatment | Tubes are delivered in the heat treated condition. If additional heat treatment is needed due to further processing, the following is recommended. Solution annealing: 1180-1250°C (2155-2280°F) and quenched. Contact Sandvik for advice regarding further heat treatment issues. | |
| Hot forming | The material can be bent at high as well as at low temperatures. Recommended temperature range for hot bending is 850-1250°C (1560-2280°F). Following hot bending, solution annealing is needed, unless the bending has been performed at controlled temperatures between 1180°C and 1250°C (2155°F and 2280°F). | |
| Other | Forms of supply: Sanicro® 25 is supplied as cold pilgered solution annealed and white-pickled seamless tubes, in common reheater and superheater boiler tube dimensions. The VdTÜV-material datasheet 555, 23.10.2018, applies for outside diameter 25 mm to 114.3 mm and wall thickness 4.5 mm -12.5 mm. | |
| Welding | The weldability of Sanicro® 25 is good. Suitable methods of fusion welding are manual metal-arc welding (MMA/SMAW) and gas-shielded arc welding, with the TIG/GTAW method as first choice. In common with all fully austenitic stainless steels, Sanicro® 25 has low thermal conductivity and high thermal expansion. Welding plans should therefore be carefully selected in advance, so that distortions of the welded joint are minimized. If residual stresses are a concern, solution annealing can be performed after welding. For Sanicro® 25, heat-input of <1.0 kJ/mm and interpass temperature of <100°C (210°F) are recommended. A string bead welding technique should be used. Recommended filler metals:
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