Difficult operating conditions in modern industry requires extensive use of heat-resistant steels based on nickel-chromium alloy alloys such as HN60VT. Manufacturing, mechanical and physical properties HN60VT tape (sometimes refer to such an alloy VZH98, EI868, HN60VT-W or HN60VT-VD) regulates GOST 5632−72.
|to 63.2||to 26.5||13−16||to 4||0.3−0.7||0.8||0.5||0.5||0.1||0.05||0,013||0,013|
The alloy is melted by means of open electric furnaces using a plasma-arc remelting and has the following technology options: HN60VT-P-W HN60VT, HN60VT-HP and others. Accordingly, in the technical literature of other countries can meet the following notation EI868-II, III-EI868, EI868-VD and so on. D. According to the normative and technical documentation, HN60VT tape manufactured according to TU 14−1-927−74. Tape thickness varies from do0,5 0.3 mm, and the width is 100 mm.
As with all heat-resistant alloyed steel, alloy HN60VT is poorly machined. As a cutting material is necessary to use a plate of dvuhkarbidnyh hard metal (group TTC). As the coolant is recommended UNIZOR-80. But the tape has good weldability and does not require preheating and subsequent heat treatment. Details for the manufacture of cold-rolled strip which was used HN60VT quenched at temperatures from 1150 to 1200 ° C with cooling by water bath or in air. The procedure of heat treatment time intervals and temperature is regulated by CT CKBA 016−2005. Tensile strength of this tape is not more than 980 MPa and elongation at break of the level of less than 30%. With increasing temperature, both values are reduced. If the temperature in which the work of this alloy reaches 1100 ° C in parts, it begins the process of intensive formation of scale.
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|hail||MPa||1 / Grad||W / (m · deg)||g / cm 3|
Production of sheet metal parts of aircraft engines and internal combustion engines that operate at temperatures up to 1000 ° C. This may be piston rings, turbine blades, afterburners and m. P.
All submitted articles HN60VT brand certified. The technical documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products. We can buy in bulk, any semi-finished products for large-scale productions. We also offer optimal conditions for retail customers. High level of service and efficiency of service are the face of our company.
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