Alloy HN65MV buy
Stainless steel nickel-based alloys have raised a modern industry to the next level. High technology, durability and corrosion resistance make them indispensable in many modern industries.
Chemical composition HN65MV, GOST 5632- - — — 72
Alloy HN65MV smelted in furnaces, induction type.
Physical properties HN65MV at t 20 ° C
- Tensile strength: 900 N / mm²;
- yield strength: 400 N / mm²;
- Reduction: 35%.
- elongation at break — 40%;
- density of 8.9 g / cm³;
- • thermal conductivity of 0.126 10² W / (m • K);
- resistivity 1.7 ohm mm 2 / m;
- the specific heat of 386 J / (kg • K);
- modulus of elasticity is 20 • 10 -4 N / mm² at 20 ° C.
Alloy according to GOST 5632- - — — 72, has a high resistance to corrosion, resists intergranular corrosion after provoke leave for 30 minutes at 800 ° C tº. This fact has been confirmed by tests in boiling 30% H 2 SO 4 th solution for 48 hours.
HN65MV alloy is easily deformed. The temperature range of the hot plastic deformation is from 1220 to 950ºS. The hardening is carried out at 20 ° C + 1070 tº cooled in water or air. When machining, because of the high propensity of the material to the work hardening, work is carried out at low speeds of cutting using carbide or high speed steel. To weld arc or argon-arc method. As filler material for argon arc welding wire used HN65MV or HN65MVU. For arc welding electrodes are used RLA-21. The welded joints are resistant to intergranular corrosion, not prone to the appearance of hot and cold cracks.
Production of welded parts and parts for use in radioactive areas. Welded chemical equipment operating in harsh, chemical or petrochemical industry or the pulp and paper industry. In the construction of tubular furnaces for production of ammonia, ethylene, hydrogen, carbon disulfide, this alloy is used as the cladding layer in the manufacture of two-layer hot-corrosion-resistant sheets and pipes. Permissible operating temperature is from -70 to + 500 ° C at pressures up to 5.0 N / mm².
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