Eigenschaften
Allgemein
Mechanisch
| Property | Temperature | Value | Comment |
|---|---|---|---|
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 | |
Dehnung | 23.0 °C | 40 % Show Supplier Material materials with Dehnung of 40 % | min. |
Elastizitätsmodul | 20.0 °C | 197 GPa Show Supplier Material materials with Elastizitätsmodul of 197 GPa | |
100.0 °C | 191 GPa Show Supplier Material materials with Elastizitätsmodul of 191 GPa | ||
200.0 °C | 183 GPa Show Supplier Material materials with Elastizitätsmodul of 183 GPa | ||
300.0 °C | 175 GPa Show Supplier Material materials with Elastizitätsmodul of 175 GPa | ||
400.0 °C | 168 GPa Show Supplier Material materials with Elastizitätsmodul of 168 GPa | ||
500.0 °C | 160 GPa Show Supplier Material materials with Elastizitätsmodul of 160 GPa | ||
600.0 °C | 153 GPa Show Supplier Material materials with Elastizitätsmodul of 153 GPa | ||
700.0 °C | 145 GPa Show Supplier Material materials with Elastizitätsmodul of 145 GPa | ||
800.0 °C | 137 GPa Show Supplier Material materials with Elastizitätsmodul of 137 GPa | ||
Härte, Vickers | 23.0 °C | 185 [-] Show Supplier Material materials with Härte, Vickers of 185 [-] | |
Streckgrenze Rp 0,2 | 20.0 °C | 310 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 310 MPa | min. |
100.0 °C | 250 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 250 MPa | min. | |
200.0 °C | 225 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 225 MPa | min. | |
300.0 °C | 210 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 210 MPa | min. | |
400.0 °C | 200 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 200 MPa | min. | |
500.0 °C | 195 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 195 MPa | min. | |
600.0 °C | 180 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 180 MPa | min. | |
700.0 °C | 180 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 180 MPa | min. | |
800.0 °C | 180 MPa Show Supplier Material materials with Streckgrenze Rp 0,2 of 180 MPa | min. | |
Streckgrenze Rp0,1 | 20.0 °C | 355 MPa Show Supplier Material materials with Streckgrenze Rp0,1 of 355 MPa | min. |
100.0 °C | 315 MPa Show Supplier Material materials with Streckgrenze Rp0,1 of 315 MPa | min. | |
200.0 °C | 255 MPa Show Supplier Material materials with Streckgrenze Rp0,1 of 255 MPa | min. | |
300.0 °C | 240 MPa Show Supplier Material materials with Streckgrenze Rp0,1 of 240 MPa | min. | |
400.0 °C | 225 MPa Show Supplier Material materials with Streckgrenze Rp0,1 of 225 MPa | min. | |
500.0 °C | 215 MPa Show Supplier Material materials with Streckgrenze Rp0,1 of 215 MPa | min. | |
600.0 °C | 205 MPa Show Supplier Material materials with Streckgrenze Rp0,1 of 205 MPa | min. | |
700.0 °C | 195 MPa Show Supplier Material materials with Streckgrenze Rp0,1 of 195 MPa | min. | |
800.0 °C | 195 MPa Show Supplier Material materials with Streckgrenze Rp0,1 of 195 MPa | min. | |
Verlängerung A2 | 23.0 °C | 40 % Show Supplier Material materials with Verlängerung A2 of 40 % | min. |
Zugfestigkeit | 20.0 °C | 680 MPa Show Supplier Material materials with Zugfestigkeit of 680 MPa | min. |
100.0 °C | 625 MPa Show Supplier Material materials with Zugfestigkeit of 625 MPa | min. | |
200.0 °C | 575 MPa Show Supplier Material materials with Zugfestigkeit of 575 MPa | min. | |
300.0 °C | 560 MPa Show Supplier Material materials with Zugfestigkeit of 560 MPa | min. | |
400.0 °C | 550 MPa Show Supplier Material materials with Zugfestigkeit of 550 MPa | min. | |
500.0 °C | 535 MPa Show Supplier Material materials with Zugfestigkeit of 535 MPa | min. | |
600.0 °C | 500 MPa Show Supplier Material materials with Zugfestigkeit of 500 MPa | min. | |
700.0 °C | 455 MPa Show Supplier Material materials with Zugfestigkeit of 455 MPa | min. | |
800.0 °C | 355 MPa Show Supplier Material materials with Zugfestigkeit of 355 MPa | min. | |
Thermisch
| Property | Temperature | Value | Comment |
|---|---|---|---|
Koeffizient der thermischen Ausdehnung | 100.0 °C | 1.45E-5 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung 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 Koeffizient der thermischen Ausdehnung 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 Koeffizient der thermischen Ausdehnung 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 Koeffizient der thermischen Ausdehnung 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 Koeffizient der thermischen Ausdehnung 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 Koeffizient der thermischen Ausdehnung 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 Koeffizient der thermischen Ausdehnung 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 Koeffizient der thermischen Ausdehnung 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 Koeffizient der thermischen Ausdehnung 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 Koeffizient der thermischen Ausdehnung 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 Koeffizient der thermischen Ausdehnung of 1.85E-5 1/K | for 30°C to the mentioned temperature | |
Max. Betriebstemperatur | 750 °C Show Supplier Material materials with Max. Betriebstemperatur of 750 °C | ||
Spezifische Wärmekapazität | 20.0 °C | 470 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 470 J/(kg·K) | |
100.0 °C | 485 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 485 J/(kg·K) | ||
200.0 °C | 500 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 500 J/(kg·K) | ||
300.0 °C | 520 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 520 J/(kg·K) | ||
400.0 °C | 535 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 535 J/(kg·K) | ||
500.0 °C | 555 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 555 J/(kg·K) | ||
600.0 °C | 570 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 570 J/(kg·K) | ||
700.0 °C | 585 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 585 J/(kg·K) | ||
800.0 °C | 605 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 605 J/(kg·K) | ||
900.0 °C | 620 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 620 J/(kg·K) | ||
1000.0 °C | 640 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 640 J/(kg·K) | ||
1100.0 °C | 665 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 665 J/(kg·K) | ||
Wärmeleitfähigkeit | 20.0 °C | 12 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 12 W/(m·K) | |
100.0 °C | 13 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 13 W/(m·K) | ||
200.0 °C | 15 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 15 W/(m·K) | ||
300.0 °C | 16 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 16 W/(m·K) | ||
400.0 °C | 18 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 18 W/(m·K) | ||
500.0 °C | 20 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 20 W/(m·K) | ||
600.0 °C | 22 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 22 W/(m·K) | ||
700.0 °C | 23 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 23 W/(m·K) | ||
800.0 °C | 25 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 25 W/(m·K) | ||
900.0 °C | 27 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 27 W/(m·K) | ||
1000.0 °C | 28 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 28 W/(m·K) | ||
1100.0 °C | 30 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 30 W/(m·K) | ||
Elektrisch
| Property | Temperature | Value |
|---|---|---|
spezifischer Widerstand | 20.0 °C | 9.8E-7 Ω·m Show Supplier Material materials with spezifischer Widerstand of 9.8E-7 Ω·m |
Chemical properties
| Property | Value | Comment | |
|---|---|---|---|
Chrom | 22.5 % Show Supplier Material materials with Chrom of 22.5 % | ||
Eisen | Balance | ||
Kobalt | 1.5 % Show Supplier Material materials with Kobalt of 1.5 % | ||
Kohlenstoff | 0.1 % Show Supplier Material materials with Kohlenstoff of 0.1 % | max. | |
Kupfer | 3 % Show Supplier Material materials with Kupfer of 3 % | ||
Mangan | 0.5 % Show Supplier Material materials with Mangan of 0.5 % | ||
Nickel | 25 % Show Supplier Material materials with Nickel of 25 % | ||
Niobium | 0.5 % Show Supplier Material materials with Niobium of 0.5 % | ||
Phosphor | 0.03 % Show Supplier Material materials with Phosphor of 0.03 % | max. | |
Schwefel | 0.015 % Show Supplier Material materials with Schwefel of 0.015 % | max. | |
Silizium | 0.2 % Show Supplier Material materials with Silizium of 0.2 % | ||
Stickstoff | 0.23 % Show Supplier Material materials with Stickstoff of 0.23 % | ||
Wolfram | 3.6 % Show Supplier Material materials with Wolfram 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:
| |