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Round, sheet, wire, pipe 20KH3MVF (эи415, эи579)


Grade analogue W. Nr. Aisi Uns En Order
20Х3МВФ EI415 Buy from stock, view availability
~20Х3МВФ EI579 Buy from stock, view availability


Steel brand 20KH3MVF (ЭИ415) one of the hard-alloyed heat-resistant alloys which contain chromium and 2.8% to 3.3%, molybdenum — 0,35−0,5%, mn — 0,25−0,5%, vanadium-0,6−0,85%, copper and carbon — 0.2%, si-0.37%, additives of phosphorus and sulfur — hundredths of a percent. The purpose of alloying is to improve the technological properties of products: heat resistance and heat resistance, resistance to aggressive environments. Hot forming of semi-finished products starts with a temperature of 1150−1180°C and finishes around 850 °C. the Pipe is hardened at a temperature of 1200 °C in water or air. Hardening rods carried in air at a temperature of 1050−1150°C.

The percentage composition of the alloy

C Si V W Cr Cu Mn Ni Mo S P Fe
0,15−0,23 0,17−0,37 0,6−0,85 0,3−0,5 The 2.8−3.3 V ≤0,2 0,25−0,5 ≤0.3 mm 0,35−0,5 ≤0,025 ≤0,03 Basis


This steel, alloyed with chrome, molybdenum, silicon is able to withstand contact with aggressive media, because in the process of heating these substances form on the surface of the protective film of oxides. Pipe is intended for weak loads, in particular in different power plants and heating devices. Pipe and circle mark 20KH3MVF used in the manufacture of parts slot furnaces for fast firing ceramic tiles, flat household ceramics, etc. ceramic products. Wire grade 20KH3MVF used in conveyor oven grids. The pipe is in the details burners. It is demanded in the manufacture of covers electrical thermometers because it has a feature not contaminate the electrodes thermocouples and provides reliable protection when working in hazardous conditions. 20KH3MVF pipe can withstand the temperature of 1250−1300°C for a long time. Thus it is used for internal combustion engines, for parts of steam and gas turbines, jet engines, nuclear power plants as a structural material.

To buy, best price

Supplier «Auremo» offers to buy heat-resistant and stainless steel alloys on favorable terms. Always in the presence of round, sheet, wire, pipe 20KH3MVF (эи415, эи579), best price in this segment of the rental. The price is formed taking into account the world prices for metal without the inclusion of additional costs. Buy discount today.

Supplier «Auremo»

Deliveries go directly from the warehouse. It gives consumers a clear choice of product and significant savings on inventory and facilities. Product availability and prompt delivery ensure that representative offices located in Moscow, Saint-Petersburg, the cities of Eastern Europe. We invite you to partnership. We have the best ratio price-quality.