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Circle, rod KHN65MV - ЭП567

Circle, rod KHN65MV - ЭП567

General characteristics

The circle of KHN65MV alloy has high strength and reliability. Along with similar chromium-Nickel products, it is intended to produce parts which are operated at high temperature (but not more than 850ºС) in aggressive chemical environments. Nickel and chromium in the composition give the parts made of this alloy of high corrosion resistance, providing increased reliability of the equipment. Such properties of the rod as malleability and ductility — provide processing advantages. Its main drawback — the instability in the atmosphere sulfur compounds.

Chem.the composition of the steel is regulated by GOST 5632−72. Steel is smelted in open electric arc furnaces, which ensures a minimum content of harmful impurities. The high cost of steel is associated with the high cost of the main components — Nickel.

Chemical composition KHN65MV
Ni Mo Cr W Fe Mn Si With P S
59,8−67,5 15−17 14,5−16,5 3−4,5 to 1 to 1 to 0.15 0,03 0,015 0,012

Properties

The surface of the circle is not susceptible to oxidation during long-term operation and high temperature. A circle of plastic and is resistant to an oxidizing atmosphere, to an atmosphere of ammonia and nitrogen. The coefficient of linear expansion = 13.7 per (1/deg K). Density of 8.9 g/cm3. The mechanical properties of the rod are temperature dependent. Up to t º 800ºС the resistance of the load will be maximum. Coefficient of thermal conductivity in the range in the range 20 — 100 º C = 0,126 • 102 W/(m • K).

Welding

Produced using TIG or arc welding. For TIG welding the filler material used wire KHN65MV and KHN65MVU. For arc welding use electrodes OzL-21. Welded connections are not prone to hot and cold cracking and resistant to intergranular corrosion.

Technological processing

Alloy KHN65MV available hot and cold deformation almost all known methods. When hot deformation temperature range is 1220 — 950ºС. Annealing of the rod occurs at a temperature of 1070±20 ° C with subsequent cooling in air or in water. Machining due to the high tendency of the metal to work hardening is performed at low speeds with the mandatory use of the tool, which is equipped with plates of high speed steel.

Use

The successful combination of alloy components allows you to use the circle KHN65MV in various fields of industry. The chemical stability and strength, it is widely used in the petrochemical industry, in the manufacture of prefabricated parts and welded structures for the production of ammonia. Round KHN65MV can reliably and durably work at temperatures up to 850 °C under load. A circle is used in the production of equipment for the metallurgical complex and details of furnaces for heat treatment.

Buy at best price

The company «AVEK global» sells heat-resistant round KHN65MV on favorable terms. Price due to the technological features of production without additional costs. The warehouse contains the widest choice of products for large-scale production. We offer attractive terms and conditions for retail customers. On the company’s site displays the full information about goods. All products are certified. The timing of orders is minimal. For wholesale orders the company provides a substantial discount.