Propiedades
General
| Property | Value |
|---|---|
Densidad | 7.8 g/cm³ Show Supplier Material materials with Densidad of 7.8 g/cm³ |
Mecánica
| Property | Value | Comment |
|---|---|---|
Elongación | 55.0 - 70.0 % Show Supplier Material materials with Elongación of 55.0 - 70.0 % | min. |
Estricción | 65.0 - 80.0 % Show Supplier Material materials with Estricción of 65.0 - 80.0 % | |
Módulo elástico | 200 GPa Show Supplier Material materials with Módulo elástico of 200 GPa | |
Resistencia a la tracción | 680.0 - 750.0 MPa Show Supplier Material materials with Resistencia a la tracción of 680.0 - 750.0 MPa |
Aplicaciones térmicas
| Property | Temperature | Value | Comment |
|---|---|---|---|
Calor específico | 500 J/(kg·K) Show Supplier Material materials with Calor específico of 500 J/(kg·K) | ||
Coeficiente de dilatación térmica | 0.0000165 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 0.0000165 1/K | 20 to 100°C | |
0.000018 1/K Show Supplier Material materials with Coeficiente de dilatación térmica of 0.000018 1/K | 20 to 300°C | ||
Conductividad térmica | 20 °C | 12 W/(m·K) Show Supplier Material materials with Conductividad térmica of 12 W/(m·K) | |
100 °C | 14 W/(m·K) Show Supplier Material materials with Conductividad térmica of 14 W/(m·K) | ||
200 °C | 16 W/(m·K) Show Supplier Material materials with Conductividad térmica of 16 W/(m·K) | ||
300 °C | 18 W/(m·K) Show Supplier Material materials with Conductividad térmica of 18 W/(m·K) |
Eléctrico
| Property | Value |
|---|---|
Resistividad eléctrica | 7.3e-07 Ω·m Show Supplier Material materials with Resistividad eléctrica of 7.3e-07 Ω·m |
Magnético
| Property | Value | Comment |
|---|---|---|
Permeabilidad magnética relativa | 1.005 [-] Show Supplier Material materials with Permeabilidad magnética relativa of 1.005 [-] | max. |
Chemical properties
| Property | Value | Comment |
|---|---|---|
Azufre | 0.015 Show Supplier Material materials with Azufre of 0.015 | max. |
Carbono | 0.05 - 0.1 % Show Supplier Material materials with Carbono of 0.05 - 0.1 % | |
Cromo | 17.5 - 18.5 % Show Supplier Material materials with Cromo of 17.5 - 18.5 % | |
Fósforo | 0.03 Show Supplier Material materials with Fósforo of 0.03 | max. |
Manganeso | 9.0 - 10.0 % Show Supplier Material materials with Manganeso of 9.0 - 10.0 % | |
Nitrógeno | 0.25 - 0.32 % Show Supplier Material materials with Nitrógeno of 0.25 - 0.32 % | |
Níquel | 5.0 - 6.0 % Show Supplier Material materials with Níquel of 5.0 - 6.0 % | |
Silicona | 0.30000000000000004 - 0.6000000000000001 % Show Supplier Material materials with Silicona of 0.30000000000000004 - 0.6000000000000001 % |
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 | |