21НКМТ - ВЭС130 sheet, round, wire
Binarna structural corrosion-resistant Maraging steel brand 21НКМТ-VI is smelted in an open induction furnace. Made in accordance with the technical specifications 14−1-5366−98. Annealing at t° 880 °C gives the strength of steel σ0,2 ≥ 850 N/mm2, σв ≥ 900. Quenching in air at 880 °C and subsequent aging at 600 °C for two hours is achieved strength σ0,2 ≥ 950 N/mm2, σв ≥ 1100. Used in the production of elastic and sensitive elements, which have complex shapes, as well as gyroscopes, gimbals, rotors. The chemical composition of the alloy 21НКМТ-VI, in percent
|8,5−9,5||≤0,03||≤0,2||≤0.3 mm||4.5 to 5.5||≤0,1||DOS.||20,5−21,5||≤0,1||≤0,01||≤0,01||Calc. 0,01||0,6−0,9|
Brand 21НКМТ-VI has high reliability, resistance to intergranular corrosion and stress corrosion cracking in chloride environments and alkalis. Thanks to the balanced characteristics concerning heat resistance and heat resistance, this steel is especially popular. When choosing heat-resistant steel, if not burdened working conditions, it is possible to change this brand to another, with lower carbon content.
Trade terms of brand 21НКМТ-VI made using metal stamping under a predetermined shape. These circles can be used in the form of forgings, ie intermediate preform for different products. Rolled seamless pipe — seamless and can be made by welding — welded. Profile of pipes under the order can be very different.
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