CrN78T-EI435 wire
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| ХН78Т | EI435 | 2.4630 | N06075 | NiCr20Ti | Delivery from the stock, in stock |
General Characteristics
High-temperature-resistant stainless wire KhN78T has a complex composition of nine basic elements. CrN78T can be referred to as EI435. Foreign analogues: 2.4951NiCr20Ti (Germany), GH3030 (China). The nickel base gives high ductility. It makes cold rolling much easier. The main alloying elements form a surface oxide film that protects the wire from corrosion and can be easily restored if damaged. At t° 1100 °C the surface oxidation rate is 0.2 mm per year. Chromium increases chemical resistance and heat resistance, while titanium gives the wire structural uniformity and strength.
The chemical composition with
| Ni | Cr | Fe | Ti | Si | Mn | С | P | S |
|---|---|---|---|---|---|---|---|---|
| 70,003-80,85 | 19-22 | up to 6 | 0,15-0,35 | up to 0.8 | up to 0.7 | up to 0.12 | 0,015 | 0,012 |
Disadvantages
Such expensive metals such as chromium, nickel, chromium, titanium in the composition of the alloy KhN78T, affect its cost. But the high strength, reliability and durability of the tape, the possibility of recycling the material - reduces the high cost in the long term investment.
Properties at 20°C
Ultimate short-term strength of 880 MPa, decreases at 1100 °C to 40 MPa. The yield strength does not exceed 300 MPa, the lowest value is 98 MPa at 800 °C, after which the index starts to increase. By 1100 °C it rises to 105 MPa. Relative elongation at break is up to 40%. At 900 °C a maximum elongation of 90% is recorded. Specific weight 8.38 g/cm³; modulus of elasticity of the 1st kind 2.19 MPa; coefficient of linear expansion 12.2 [1/Grad]; Heat capacity up to 14.6 W/(m-rad).
| t° | E 10- 5 | a 10 6 | Heat capacity | Density |
|---|---|---|---|---|
| Grad | MPa | 1/Grad | W/(m-grad) | g/cm3 |
| 20 | 2.24 | 12,6 | 8,4 | |
| 200 | 2,13 | 13 | 16,7 | 8,3 |
| 400 | 2 | 13.8 | 20.6 | 8,26 |
| 600 | 1.84 | 14.7 | 24.8 | 8,18 |
| 800 | 15.5 | 28.9 | 8,09 |
Application
Such wire in addition to high heat resistance has a significant specific resistance of 1.1 Ohm xmm2 / m, which allows its use for heating elements designed for continuous operation at t ° up to 1100 ° C - rheostats, resistors, heating elements for ovens. Very often it is used in the production of welded structures working in aggressive environments. It is in demand in chemical, pulp and paper, gas and oil refining industries. Without it it is difficult to do in aircraft construction in the manufacture of varnish and paint products, fertilizers. It is in demand for the production of details of combustion chambers and a variety of equipment for which heat resistance, reliability and durability are important. CrN78T wire is applicable for welding of chromium-nickel alloys and metal structures of carbon steel.
Supply
All the presented products of CrN78T grade are certified. The technical documentation includes data on the chemical composition, the limiting percentage of impurities, and the mechanical properties of products. From us you can buy in bulk any semi-finished products for large-scale production. We also offer optimum conditions for retail buyers. The high level of service and responsiveness of service is the face of our company.
Buy at the best price
Evek GmbH has a diverse range of chrome-iron-nickel alloys in stock. We supply certified products of domestic and foreign manufacturers. We appreciate the time of our customers, so we are always happy to provide expert help with the choice. At your service experienced managers-consultants. The quality of the products is guaranteed by the strict observance of production standards. Execution of orders takes minimal time. Wholesale customers are offered discounts.