Eigenschaften
Allgemein
| Property | Value |
|---|---|
Dichte | 7.8 g/cm³ Show Supplier Material materials with Dichte of 7.8 g/cm³ |
Mechanisch
| Property | Value | Comment |
|---|---|---|
Dehnung | 55.0 - 70.0 % Show Supplier Material materials with Dehnung of 55.0 - 70.0 % | min. |
Elastizitätsmodul | 200 GPa Show Supplier Material materials with Elastizitätsmodul of 200 GPa | |
Flächenreduzierung | 65.0 - 80.0 % Show Supplier Material materials with Flächenreduzierung of 65.0 - 80.0 % | |
Zugfestigkeit | 680.0 - 750.0 MPa Show Supplier Material materials with Zugfestigkeit of 680.0 - 750.0 MPa |
Thermisch
| Property | Temperature | Value | Comment |
|---|---|---|---|
Koeffizient der thermischen Ausdehnung | 0.0000165 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 0.0000165 1/K | 20 to 100°C | |
0.000018 1/K Show Supplier Material materials with Koeffizient der thermischen Ausdehnung of 0.000018 1/K | 20 to 300°C | ||
Spezifische Wärmekapazität | 500 J/(kg·K) Show Supplier Material materials with Spezifische Wärmekapazität of 500 J/(kg·K) | ||
Wärmeleitfähigkeit | 20 °C | 12 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 12 W/(m·K) | |
100 °C | 14 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 14 W/(m·K) | ||
200 °C | 16 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 16 W/(m·K) | ||
300 °C | 18 W/(m·K) Show Supplier Material materials with Wärmeleitfähigkeit of 18 W/(m·K) |
Elektrisch
| Property | Value |
|---|---|
spezifischer Widerstand | 7.3e-07 Ω·m Show Supplier Material materials with spezifischer Widerstand of 7.3e-07 Ω·m |
Magnetisch
| Property | Value | Comment |
|---|---|---|
Relative magnetische Permeabilität | 1.005 [-] Show Supplier Material materials with Relative magnetische Permeabilität of 1.005 [-] | max. |
Chemical properties
| Property | Value | Comment |
|---|---|---|
Chrom | 17.5 - 18.5 % Show Supplier Material materials with Chrom of 17.5 - 18.5 % | |
Kohlenstoff | 0.05 - 0.1 % Show Supplier Material materials with Kohlenstoff of 0.05 - 0.1 % | |
Mangan | 9.0 - 10.0 % Show Supplier Material materials with Mangan of 9.0 - 10.0 % | |
Nickel | 5.0 - 6.0 % Show Supplier Material materials with Nickel of 5.0 - 6.0 % | |
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 | 0.30000000000000004 - 0.6000000000000001 % Show Supplier Material materials with Silizium of 0.30000000000000004 - 0.6000000000000001 % | |
Stickstoff | 0.25 - 0.32 % Show Supplier Material materials with Stickstoff of 0.25 - 0.32 % |
Technological properties
| Property | ||
|---|---|---|
| Application areas | ||
| Cold Forming | Drawing like other austenitic steels, drawing UGI® 202N is not difficult. It strain hardens rapidly with reduction of section but its natural ductility allows to go above 80% of section reduction. The ratio between yield strength and tensile strength after cold work hardening is around 0.9. Mechanical characteristics reached after a high section reduction are significantly higher than those obtained in annealed condition. These high mechanical characteristics make UGI® 202N most adequate for amagnetic springs. Table below gives indicative mechanical characteristics. For diameter below 0.5 mm and above 6.0 mm contact the supplier. | |
| Corrosion properties | UGI® 202N provides a good corrosion resistance in mildly aggressive environments. UGI® 202N is recommended for medium with limited concentration in chlorinated components. High surface hardness in the work-hardened condition and very good corrosion-abrasion properties have led to its use in water and coal filtration industries. The figure below shows the corrosion behavior of UGI® 202N after an abrasion-corrosion test. This test quantifies the rate of weight loss of specimens in an sulfuric acid solution with projection of silicon carbide particles. The solution of H₂SO₄ is at pH=3 and SiC particles (diameter 105 µm and concentration 50 g/l) are projected at a speed of 10 m/s. Grade UGI® 202N appears very good, outperforming AISI 304 and even AISI 316L (see figure on the right side of the material page). | |
| Heat Treatment | Mechanical characteristics of spring wire can be increased by approximathy 250 MPa (depending on diameters) with a thermal treatment applied to springs. Static furnace treatment: T° of treatment, 350/450 °C depending on batch size. Recommanded duration, 0.5 to 1 hour Continuous furnace treatment: T° of treatment, 25 °C more than with static furnace treatment. Minimum duration, 3 minutes | |
| Hot forming | UGI® 202N has good forging properties. Forging temperatures should be in the range of 900°C to 1100°C. After forging, cooling should be quick in order to avoid sensitivation by chromium carbide formation and potential corrosion at grain boundaries. | |
| Other | Available products: Other formats: contact the supplier | |