Circle of stainless steel HN77TYUR (old marking EI437) belongs to the category of increased heat resistance. The composition range is regulated by GOST 5632- - — — 72. The generally accepted international counterparts of this alloy are steel Incoloy, Inconel and Hastalloy. Part of the titanium alloy strengthens and improves the technical characteristics, giving strength and range of homogeneous structure. Chromium and nickel form a surface oxide film, which protects against corrosion and the circle is easily restored by mechanical or chemical damage.
|70 to 77.4||19−22||2.4−2.8||06−1,0||1||0.6||0.4||0.07||0.02||0,015||0.01||0.01||0,007|
Tempering is carried out at 1090−1120 ° C, cooled in air or water. Aging takes place at t ° 700−750 ° C from 12 to 16 hours. Weldability limited. For lasting weld required preheating up to 200 — 300 ° C with a final annealing after the welding.
|t °||E 10 — 5||a June 10||Heat capacity||Density|
|hail||MPa||1 / Grad||W / (m · deg)||g / cm 3|
The circle is resistant to atmospheric and soil corrosion, durable, reliable and durable, it has a minimal tendency to brittle fracture at low temperatures. Designed for long operated at t ° up to 750 ° C, characterized by high resistance to nitric acid, sulfuric acid, corrosive environments of industrial gases. Resistant to hot condensate, to meet the stringent sanitary requirements.
Such expensive metals such as chromium, nickel, molybdenum, titanium in the steel HN75MBTYU, affect its cost. But the high strength and durability of the pipe, the possibility of recycling material — reduces the high cost of practically in long-term investments.
Due to the strength, elasticity, ability to resist corrosion, circle HN77TYUR applied very widely. It — mechanical engineering, energy, automotive, gas, oil refining, chemical industry, construction. Of the range of items produced ICE combustors and turbines — like moving (rotating), and fixed (static). This heat-resistant nickel circle, thanks to technology and corrosion resistance (in a vacuum, sea water vapor in the air) in the conditions of extreme temperature changes, the most in demand in the forefront of modern industry.
Buy at the best price
In stock «Electrovek-steel» company offers a wide range of products of alloy HN77TYUR standard and custom settings. Prices are due to the technological features of production without including additional costs. All products are certified. We easily purchase wholesale products needed for large-scale projects, we also offer favorable conditions for retail customers. The products are manufactured in strict compliance with the requirements of the technological process that guarantees the highest quality, it is kept under cover or indoors to protect from any damage. Terms of realization of orders are minimal. Wholesale customers receive discounts.