Tape CrN60VT - EI868
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| XH60VT | EI868 | Delivery from the stock, in stock | |||
| KhN60VT-p | EI868 | Delivery from the stock, in stock |
Relevance
Severe operating conditions in modern industry require wide use of heat-resistant steels based on alloyed chromium-nickel alloys such as CrN60VT. Production, mechanical and physical properties of tape CrN60VT (sometimes this alloy is designated as VZH98, EI868, CrN60VT-SH or CrN60VT-VD) regulates
Chemical composition:
| Ni | Cr | W | Fe | Ti | Si | Mn | Al | С | Ca | P | S |
|---|---|---|---|---|---|---|---|---|---|---|---|
| up to 63.2 | up to 26.5 | 13-16 | up to 4 | 0,3-0,7 | up to 0.8 | up to 0.5 | up to 0.5 | up to 0.1 | up to 0.05 | 0,013 | 0,013 |
Production
The alloy is melted by means of open electric furnaces using plasma-arc remelting technology and has the following variants: CrN60VT-P, CrN60VT-SH, CrN60VT-VD and others. Correspondingly in the technical literature of other countries may meet the following designations EI868-P, EI868-SH, EI868-VD
Processing
Like all heat-resistant alloy steels, alloy CrN60VT is poorly machinable. Two-carbide carbide plates (of the TTK group) must be used as cutting material. As a cooling lubricant UNIZOR-80 is recommended. But the strip has good weldability and does not require pre-heating, as well as subsequent heat treatment. Parts, for the manufacture of which used a cold-rolled strip CrN60VT are subjected to hardening at temperatures from 1150 to 1200ºС with cooling under a water shower or in the air. The procedure of heat treatment, time intervals and temperature conditions are regulated by ST CKBA 016-2005. Tensile strength of such tapes does not exceed 980 MPa and elongation at break is less than 30%. With increasing temperature both indicators decrease. If the temperature in which parts of this alloy work reaches 1100ºС, the process of intense scale formation begins.
| t° | E 10- 5 | a 10 6 | Heat capacity | Density |
|---|---|---|---|---|
| Grad | MPa | 1/Grad | W/(m-grad) | g/cm3 |
| 20 | 1.9 | 29,6 | 8,8 | |
| 200 | 13,2 | 11,7 | 8,7 | |
| 400 | 14,1 | 16.3 | 8,66 | |
| 600 | 15.1 | 21.3 | 8,58 | |
| 800 | 1,12 | 16 | 25.5 | 8,49 |
Application
Production of sheet parts for aircraft and internal combustion engines that operate at temperatures up to 1000ºC. These can be piston rings, turbine blades, afterburner blades
Delivery
All the presented products of CrN60VT grade are certified. The technical documentation includes data on the chemical composition, the limiting percentage of impurities; mechanical properties of the 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 offers its customers an unlimited choice of metal products of the highest quality at a competitive price. If you have difficulty in choosing, experienced managers who are always available and ready to provide advice are at your service. Order with us and you will receive certified products that meet international quality standards in the shortest possible time. If you value your time, contact our nearest office today, or order online.