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 | 250 mm Show Supplier Material materials with Durchmesser of 250 mm | max. |
Mechanisch
| Property | Temperature | Value | Comment |
|---|---|---|---|
Charpy impact energy, V-notch | 80 J Show Supplier Material materials with Charpy impact energy, V-notch of 80 J | ||
Dehnung | 14 % Show Supplier Material materials with Dehnung of 14 % | A5 | Transverse | |
16 % Show Supplier Material materials with Dehnung of 16 % | A5 | ||
Elastizitätsmodul | 20 °C | 200 GPa Show Supplier Material materials with Elastizitätsmodul of 200 GPa | |
100 °C | 195 GPa Show Supplier Material materials with Elastizitätsmodul of 195 GPa | ||
200 °C | 185 GPa Show Supplier Material materials with Elastizitätsmodul of 185 GPa | ||
300 °C | 175 GPa Show Supplier Material materials with Elastizitätsmodul of 175 GPa | ||
400 °C | 170 GPa Show Supplier Material materials with Elastizitätsmodul of 170 GPa | ||
Härte, Brinell | 320 [-] Show Supplier Material materials with Härte, Brinell of 320 [-] | annealed | |
Streckgrenze | 20 °C | 700 MPa Show Supplier Material materials with Streckgrenze of 700 MPa | RP02 |
100 °C | 660 MPa Show Supplier Material materials with Streckgrenze of 660 MPa | RP02 | |
150 °C | 640 MPa Show Supplier Material materials with Streckgrenze of 640 MPa | RP02 | |
200 °C | 620 MPa Show Supplier Material materials with Streckgrenze of 620 MPa | 600 | |
300 °C | 580 MPa Show Supplier Material materials with Streckgrenze of 580 MPa | RP02 | |
Zugfestigkeit | 900 - 1100 MPa Show Supplier Material materials with Zugfestigkeit of 900 - 1100 MPa |
Thermisch
| Property | Temperature | Value | Comment |
|---|---|---|---|
Koeffizient der thermischen Ausdehnung | 100 °C | 1.08e-05 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.08e-05 1/K | for 20°C to the mentioned temperature |
200 °C | 1.08e-05 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.08e-05 1/K | for 20°C to the mentioned temperature | |
300 °C | 1.12e-05 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.12e-05 1/K | for 20°C to the mentioned temperature | |
400 °C | 1.16e-05 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 1.16e-05 1/K | for 20°C to the mentioned temperature | |
Spezifische Wärmekapazität | 430 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 430 J/(kg·K) | ||
Wärmeleitfähigkeit | 15 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 15 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 | 0.06 % Show Supplier Material materials with Kohlenstoff of 0.06 % |
Mangan | 1.5 % Show Supplier Material materials with Mangan of 1.5 % |
Molybdän | 0.8 - 1.5 % Show Supplier Material materials with Molybdän of 0.8 - 1.5 % |
Nickel | 4 - 6 % Show Supplier Material materials with Nickel of 4 - 6 % |
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 | 0.7 % Show Supplier Material materials with Silizium of 0.7 % |
Stickstoff | 0.02 % Show Supplier Material materials with Stickstoff of 0.02 % |
Technological properties
| Property | ||
|---|---|---|
| Application areas | Chemical industry, Ship Building, Mechanical Engineering, Aviation and Aerospace industry | |
| Corrosion properties | Good - Due to its higher alloy content, 1.4418 is more resistant to corrosion than 1.4057 and the addition of molybdenum allows limited exposure to marine environments. As a result of its chemical composition and microstructure, 1.4418 is extremely resistant to intergranular corrosion, corrosion fatigue and stress corrosion cracking. PRE = 17.95 – 22.27 high corrosion resistance against weak acids and alkalis, oxidizing acids such as nitric and media containing weak chlorides. | |
| General machinability | Poor - The machinability of this grade of stainless steel is directly related to its hardness. 1.4418 machines similar to carbon steels of the same hardness. Although it must be realised that the machining parameters will vary depending on the heat treated condition and hardness of the steel. | |
| Heat Treatment | 1.4418 can be soft annealed by holding at a temperature of approximately 600 °C (but not in excess of 625 °C), followed by slow cooling in air. 1.4418 can be hardened by holding at a temperature between 1000 °C – 1050 °C followed by cooling in air, oil or polymer. Tempering 550-620°C in water, air | |
| Hot forming | It is formable at 900-1150°C | |
| Processing history | Quenched and tempered QT 900 | |
| Welding | Good - 1.4418 is readily weldable using all standard welding techniques. Care must however be taken to ensure that hydrogen or carbon containing gasses are not used when welding under shielded gas. Pre-heating of the work piece to a temperature between 100 °C and 200 °C is recommended. After welding, the weldment should either be annealed or tempered, as described before. If a filler material is required, then either a matching filler or Novonit® 4430 should be used. | |