Nichrome and fechral
Nichrome — brings together a group of alloys based on nickel and chromium doped silicon, manganese and iron. Due to the high resistance Nichrome is relevant for the production of heating elements of household appliances and industrial flame furnaces. It is designed for operating temperatures of the order of 1100 — 1200 ° C. A significant proportion of the nickel alloy gives the ability to dissolve other metals without loss of ductility and corrosion resistance in hot liquid and gaseous media. Chromium enhances heat resistance, hardness and corrosion resistance of nickel alloys. Nichrome famous combination of high strength, heat resistance and ductility. Slight thermal creep coefficient allows the wire minimum diameter slightly larger thickness of a human hair. Nichrome strip may be 0.1 mm thick with a width of 6 — 250 mm.
Nichrome has a good combination of heat resistance and high electrical resistance. The minimum coefficient of thermal expansion enables the wire does not sag at significant temperatures. Surface oxides of chromium and nickel alloy impart excellent corrosion resistance, it can be used in harsh environments. It has good processability. Plasticity allows you to roll the thinnest wire and tape in a cold state. Heat resistance helps to maintain the fragments of nickel alloys mechanical loads without deforming or breaking.
Fechral is also used for the manufacture of heating elements of household appliances and industrial furnace flame, but due to lack of nickel it is cheaper and therefore more attractive to a buyer. The alloy composition includes up to 15% chromium, 5.5% aluminum, about 1% silicon and manganese. Balance is iron. It is quite hard and brittle alloy that responds poorly to treatment. The electrical resistance of 1.2−1.3 Omxmm² / m — one of the highest among metals. Specific gravity (7.1 — 7.3 kg / m³) depends on the percentage of cells in the composition. Maximum operating temperature of ≤1400 ° C.
It is an alloy based on iron, chromium and aluminum alloy includes nearly a quarter of chromium, but is only 0.6% of expensive nickel. A small amount of nickel makes fechral cheaper and more attractive to the consumer. Maximum operating temperature 1≤400 ° C. Wire Manufacturing normalizes GOST 12 766.1−90. With the increase in the diameter of the wire increases the operating temperature limit.
Manufacture of elements of the electric heating of industrial furnaces, as well as start-up and braking resistors rolling mechanisms. H27YU5T alloy heating elements relevant for industrial and muffle furnaces with maximum temperature of ≤1350 ° C. H23YU5T Alloy today displaces from the sector, such as the brand and H15YU5 H27YU5T. For the same price H23YU5T surpasses analogues in performance indicators.
All products are certified. The technical documentation includes data on the chemical composition, limiting the percentage of impurities; mechanical properties of products. We can buy in bulk a variety of semi-finished products for large-scale productions. We also offer good conditions for retail customers. You will be satisfied with the level of service and speed of service.
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Nickel alloys, sold by the company «Electrovek-steel» company meet state quality standards. We supply metal standard and custom sizes in the shortest possible time from the stores located in the territory of Russia and Ukraine. High quality, reasonable prices and a wide selection of products define the face of our company. As our regular customer, you can count on a discount system of discounts. Cooperation with us will help you to implement any engineering plans. We are waiting for your orders at evek.org site.