Eigenschaften
Allgemein
| Property | Value |
|---|---|
Dichte | 7.7 g/cm³ Show Supplier Material materials with Dichte of 7.7 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 | 15 J Show Supplier Material materials with Charpy impact energy, V-notch of 15 J | ||
Dehnung | 10 % Show Supplier Material materials with Dehnung of 10 % | A5 | |
Elastizitätsmodul | 20 °C | 215 GPa Show Supplier Material materials with Elastizitätsmodul of 215 GPa | |
100 °C | 212 GPa Show Supplier Material materials with Elastizitätsmodul of 212 GPa | ||
200 °C | 205 GPa Show Supplier Material materials with Elastizitätsmodul of 205 GPa | ||
300 °C | 200 GPa Show Supplier Material materials with Elastizitätsmodul of 200 GPa | ||
400 °C | 190 GPa Show Supplier Material materials with Elastizitätsmodul of 190 GPa | ||
Härte, Brinell | 321 [-] Show Supplier Material materials with Härte, Brinell of 321 [-] | ||
Streckgrenze | 20 °C | 700 MPa Show Supplier Material materials with Streckgrenze of 700 MPa | RP02 |
100 °C | 565 MPa Show Supplier Material materials with Streckgrenze of 565 MPa | RP02 | |
150 °C | 525 MPa Show Supplier Material materials with Streckgrenze of 525 MPa | RP02 | |
200 °C | 505 MPa Show Supplier Material materials with Streckgrenze of 505 MPa | RP02 | |
250 °C | 490 MPa Show Supplier Material materials with Streckgrenze of 490 MPa | RP02 | |
300 °C | 470 MPa Show Supplier Material materials with Streckgrenze of 470 MPa | RP02 | |
350 °C | 435 MPa Show Supplier Material materials with Streckgrenze of 435 MPa | RP02 | |
400 °C | 375 MPa Show Supplier Material materials with Streckgrenze of 375 MPa | RP02 | |
Zugfestigkeit | 900 - 1050 MPa Show Supplier Material materials with Zugfestigkeit of 900 - 1050 MPa |
Thermisch
| Property | Temperature | Value | Comment |
|---|---|---|---|
Koeffizient der thermischen Ausdehnung | 100 °C | 1e-05 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1e-05 1/K | for 20°C to the mentioned temperature |
200 °C | 1.05e-05 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.05e-05 1/K | for 20°C to the mentioned temperature | |
300 °C | 1.05e-05 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.05e-05 1/K | for 20°C to the mentioned temperature | |
400 °C | 1.05e-05 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.05e-05 1/K | for 20°C to the mentioned temperature | |
Spezifische Wärmekapazität | 460 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 460 J/(kg·K) | ||
Wärmeleitfähigkeit | 25 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 25 W/(m·K) |
Elektrisch
| Property | Value |
|---|---|
spezifischer Widerstand | 7e-07 Ω·m Show Supplier Material materials with spezifischer Widerstand of 7e-07 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Chrom | 15 - 17 % Show Supplier Material materials with Chrom of 15 - 17 % |
Eisen | Balance |
Kohlenstoff | 0.12 - 0.2 % Show Supplier Material materials with Kohlenstoff of 0.12 - 0.2 % |
Mangan | 1 % Show Supplier Material materials with Mangan of 1 % |
Nickel | 1.25 - 2.5 % Show Supplier Material materials with Nickel of 1.25 - 2.5 % |
Phosphor | 0.04 % Show Supplier Material materials with Phosphor of 0.04 % |
Schwefel | 0.03 % Show Supplier Material materials with Schwefel of 0.03 % |
Silizium | 1 % Show Supplier Material materials with Silizium of 1 % |
Technological properties
| Property | ||
|---|---|---|
| Application areas | Automotive industry, Chemical industry, Aerospace industry, Petrochemical industry, Mechanical engineering | |
| Corrosion properties | Good - The formation of chromium carbides and the associated chromium depleted regions that form around these precipitates make this grade of steel susceptible to intergranular corrosion. Surface condition plays an important role in the corrosion resistance of this steel with polished surfaces exhibiting far superior corrosion resistance compared with rougher surfaces on the same material. PRE = 17.5 – 21.26 | |
| General machinability | Poor - The machinability of this grade of stainless steel is directly related to its hardness. 1.4057 machines similar to carbon steels of the same hardness. Although it must be realised that the machining parameters will vary depending on the structure/hardness of the stee | |
| Heat Treatment | 1.4057 can be hardened by holding at a temperature between 950 °C – 1060 °C followed by cooling in air or oil. The tempering temperature is dependent on the desired strength. Since this grade of steel is susceptible to 475 °C embrittlement, care must be taken to limit exposure to the temperature range 420 °C to 520 °C, both during fabrication and service. QT900 (tempered between 600 °C and 650 °C). | |
| Hot forming | It is formable at 800-1100°C | |
| Processing history | Quenched and tempered QT 900 | |
| Welding | Good - When welding 1.4057 with a matching filler, the work piece is usually heated to a temperature of between 100 °C and 300 °C prior to welding and is tempered as soon as possible after welding to restore some ductility to the weld zone. For optimal properties, the entire work piece should be re-heat treated. When the mechanical properties are not of primary concern, then Novonit® 4430 or 4370 can be used as the filler material. When these two fillers are used, pre-heating of the work piece is not required. Care must be taken to ensure that no nitrogen or carbon containing gasses are used for the shielding gas since this can adversely affect the properties of the weldment. To ensure adequate corrosion resistance of the weldment, any spatter or heat tint must be removed. | |