CrN78T - EI435 sheet
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| ХН78Т | EI435 | 2.4630 | N06075 | NiCr20Ti | Delivery from the stock, in stock |
Characteristics
Heat-resistant CrN78T chromium-nickel steel sheet is designed for long-term operation at t° up to 1100 °C. It retains its excellent properties after many years of operation under the harshest conditions. Its specific gravity is 8.38 g/cm³. It is corrosion-resistant, ductile, very workable even in cold condition and easy to weld. It has high heat and creep resistance. Its relative elongation at break = 25%. Tensile strength 830 MPa, modulus of elasticity of the 1st kind 2.19 MPa; coefficient of thermal expansion 12.2 [1/Grad]; Heat capacity ~14.6 W/(m-grad).
| 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 |
Such expensive elements as chrome, nickel, titanium in the composition of the sheet increase its cost. However, high strength and durability of KhN78T alloy and possibility of recycling pay off this high price. The disadvantages of the sheet include embrittlement in sulfuric media.
Chemical composition (GOST 5632 - 72)
| 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 |
Application
Heat resistance, high resistance to creep and fracture at extreme temperatures allow the use of such a sheet in systems operating under pressure at t ° 1000 ° C, in jet engines, combustion chambers of internal combustion engines. Sheet CrN78T is used for the manufacture of steam and steam heating pipes, a variety of systems of ultrahigh pressure, gas and steam turbines, withstanding very high temperature and pressure. Such sheet is used in mechanical engineering, construction, nuclear and oil industries. Heat resistance and high specific resistance allows its use in electrical engineering. Expands the scope of the sheet and the fact that it is perfectly welded. Robust, reliable and durable, it has proved its worth in modern production.
| Variety | Thickness | s in | in | Heat treatment |
|---|---|---|---|---|
| Plate, |
≤ 3,9 | 860 | 35 | Hardening 980 - 1020 °C, air cooling |
| Plate, |
4 - 11 | 880 | 30 | Hardened 980 - 1020 °C, air cooled |
Delivery
All presented products of CrN78T grade are certified. Technical documentation includes data on chemical composition, limiting percentage of impurities; 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 wide range of chrome-iron-nickel alloys in stock. We deliver the products of standard, non-standard parameters according to the individual order. All products are certified. The certificate indicates the alloy grade, melting number, chemical composition, the results of additional tests. We offer a wide range of wholesale rolled products for large-scale productions. We also offer good conditions for retail buyers. Execution of orders takes minimum time. Preferential discounts are offered to our wholesale customers.