Eigenschaften
Allgemein
| Property | Value |
|---|---|
Dichte | 7.8 g/cm³ Show Supplier Material materials with Dichte of 7.8 g/cm³ |
Abmessung
| Property | Value | Comment |
|---|---|---|
Durchmesser | 160 mm Show Supplier Material materials with Durchmesser of 160 mm | max. |
Mechanisch
| Property | Temperature | Value | Comment |
|---|---|---|---|
Charpy impact energy, V-notch | 100 J Show Supplier Material materials with Charpy impact energy, V-notch of 100 J | ||
Dehnung | 25 % Show Supplier Material materials with Dehnung of 25 % | A5 | |
Elastizitätsmodul | 20 °C | 200 GPa Show Supplier Material materials with Elastizitätsmodul of 200 GPa | |
100 °C | 194 GPa Show Supplier Material materials with Elastizitätsmodul of 194 GPa | ||
200 °C | 186 GPa Show Supplier Material materials with Elastizitätsmodul of 186 GPa | ||
300 °C | 180 GPa Show Supplier Material materials with Elastizitätsmodul of 180 GPa | ||
Härte, Brinell | 270 [-] Show Supplier Material materials with Härte, Brinell of 270 [-] | ||
Härte, Rockwell C | 25 [-] Show Supplier Material materials with Härte, Rockwell C of 25 [-] | ||
Streckgrenze | 20 °C | 450 MPa Show Supplier Material materials with Streckgrenze of 450 MPa | RP02 |
150 °C | 360 MPa Show Supplier Material materials with Streckgrenze of 360 MPa | RP02 | |
200 °C | 315 MPa Show Supplier Material materials with Streckgrenze of 315 MPa | RP02 | |
250 °C | 300 MPa Show Supplier Material materials with Streckgrenze of 300 MPa | RP02 | |
Zugfestigkeit | 650 - 880 MPa Show Supplier Material materials with Zugfestigkeit of 650 - 880 MPa |
Thermisch
| Property | Temperature | Value | Comment |
|---|---|---|---|
Koeffizient der thermischen Ausdehnung | 100 °C | 1.3e-05 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.3e-05 1/K | for 20°C to the mentioned temperature |
200 °C | 1.35e-05 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.35e-05 1/K | for 20°C to the mentioned temperature | |
300 °C | 1.4e-05 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.4e-05 1/K | for 20°C to the mentioned temperature | |
Spezifische Wärmekapazität | 500 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 500 J/(kg·K) | ||
Wärmeleitfähigkeit | 15 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 15 W/(m·K) |
Elektrisch
| Property | Value |
|---|---|
spezifischer Widerstand | 7.8e-07 Ω·m Show Supplier Material materials with spezifischer Widerstand of 7.8e-07 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Chrom | 21 - 23 % Show Supplier Material materials with Chrom of 21 - 23 % |
Eisen | Balance |
Kohlenstoff | 0.03 % Show Supplier Material materials with Kohlenstoff of 0.03 % |
Mangan | 2 % Show Supplier Material materials with Mangan of 2 % |
Molybdän | 2.5 - 3.5 % Show Supplier Material materials with Molybdän of 2.5 - 3.5 % |
Nickel | 4.5 - 6.5 % Show Supplier Material materials with Nickel of 4.5 - 6.5 % |
Phosphor | 0.035 % Show Supplier Material materials with Phosphor of 0.035 % |
Schwefel | 0.015 % Show Supplier Material materials with Schwefel of 0.015 % |
Silizium | 1 % Show Supplier Material materials with Silizium of 1 % |
Stickstoff | 0.1 - 0.22 % Show Supplier Material materials with Stickstoff of 0.1 - 0.22 % |
Technological properties
| Property | ||
|---|---|---|
| Application areas | Construction industry, Chemical industry, Petro-chemical industry, Electronic equipment, Food and Beverage industries, Mechanical engineering, Off-shore structures and Ship building | |
| Corrosion properties | Excellent - Superb corrosion resistance in chloride containing and acid environments, especially in phosphoric and organic acids. Corrosion resistance is superior to that of 1.4404. As a result of the duplex structure 1.4462 exhibits superior corrosion resistance to the austenitic grades in that it is not susceptible to intergranular corrosion and also in that this grade of steel is exceptionally resistant to stress corrosion cracking. This stainless steel is also resistant to pitting corrosion, which together with its resistance to stress corrosion cracking accounts for its extensive use in offshore applications. PRE = 30.85 – 38.07 | |
| General machinability | Poor - Like all duplex stainless steels, 1.4462 is only machinable with some difficulty. The factors responsible for this are the high strength and duplex structure. The optimal cutting/machining parameters lie within a much narrower band than is the case with the austenitic grades. Coated hard metal cutting/machining tools or the use of Cermets are recommended for the machining of 1.4462. | |
| Heat Treatment | Optimal corrosion and mechanical properties can be obtained by solution annealing the steel at temperatures between 1050 °C und 1100 °C followed by rapid cooling in air or water. | |
| Hot forming | It is formable at 950-1200°C | |
| Processing history | Solution Annealed | |
| Welding | Good - Like all duplex stainless steels, care must be taken when welding 1.4462. The optimal enveope of welding parameters is small and as such deviations outside these optimal limits could lead to poor welds. Within the prescribed welding parameters, weldability is good. The use of slightly higher heat inputs (1 – 3 kJ/mm), during welding is preferable since this results in a better phase distribution in the weld zone, which in turn results in improved mechanical properties of the weldment. | |