Round KHN78T - ЭИ435
Stainless steel bar KHN78T high heat resistance is a complex mixture of nine main elements. Plasticity and viscosity of the composition owe 78% of the Nickel is much easier to rent and weldability of the metal. Brand KHN78T may be referred to as ЭИ435. Foreign analogs: 2.4951NiCr20Ti (Germany), GH3030 (China). Nickel base provides a high plasticity. This greatly facilitates cold rolled. The main alloying elements forms a surface oxide film which protects the wire from corrosion and is easily restored, if damaged. At t° 1100 °C the surface oxidation rate is 2 mm per 10 years. Chromium improves the chemical resistance, heat resistance, and the titanium wire attached to the structural uniformity and strength.
|70,003-to 80.85||19−22||to 6||0,15−0,35||to 0.8||to 0.7||to 0.12||0,015||0,012|
Such expensive elements such as Cr, Ni, Ti increase the cost of the circle. But high strength and durability of alloy KHN78T, the possibility of recycling material — translates the high cost of the circle is practically in the long-term investment. The disadvantages include the instability in a sulphurous environment, visausa embrittlement.
Properties at 20°C
Limit short-term strength of 880 MPa and reduced at 1100 °C up to 40 MPa. Yield strength not exceeding 300 MPa, the lowest value is 98 MPa at t° 800 °C, after which the rate begins to increase. To 1100 °C it increases to 105 MPa. Elongation at break to 40%. At 900 °C recorded the maximum elongation of 90%. The specific weight of 8.38 g/cm3; modulus of elasticity of the 1st kind of 2.19 MPa; coefficient of linear expansion is 12.2 [1/Deg]; the heat Capacity to 14.6 W/(m·deg).
|t°||E 10— 5||a 10 6||Heat||Density|
|600||1.84||14.7||24.8||8 and 18|
Heat resistance and a high specific resistance of 1.1 Омхмм2/m, allows you to use the range for heating elements, designed for continuous operation at t° up to 1100 °C. Very often it is used in the manufacture of welded structures operating in aggressive environments in the chemical, pulp and paper, oil refining and gas industry. Without it, hard to do in the manufacture of paint products, fertilizers. KHN78T electrodes used for welding Nickel-chromium alloys and metal constructions from carbon steel. Dignity circle KHN78T allow it to be used in the manufacture of welded structures operating at temperatures up to 1100 °C It is indispensable in the manufacture of combustion chambers of a jet turbine works reliably under the action of huge loads. The circle made plugs, bolts, various threaded connections, studs, nuts, high corrosion resistance and high wear resistance. Expands the scope of the circle and the fact that he has great weldability.
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In stock, LLC «Electrocentury-steel» a wide range of brand products KHN78T standard and non-standard parameters. All the products are certified. In the technical documentation included data on chemical composition, limiting the percentage of impurities; mechanical qualities of the products. We can buy in bulk any semi-finished products for large-scale production. We also offer optimal conditions for retail customers. A high level of service and speed of service are the face of our company.
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Predostavlyaem for the implementation of an unlimited range of chromium-Nickel alloys of the highest quality at a competitive price. If you are not sure, it offers experienced managers who are always on call and ready to provide advice. Making an order from us, You will get certified products that comply with Russian and international quality standards in the shortest possible time. If You value your time, get in touch today with our branch offices in Russia or Ukraine, or make an order through the Internet.