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Views: 0 Author: Site Editor Publish Time: 2022-09-30 Origin: Site
Chromium alloy has high strength and corrosion resistance, with iron and nickel alloy commonly known as stainless steel.
Nickel chromium is two kinds of metal elements, both of which can be alloy with iron, aluminum, silicon, carbon, sulfur and other impurities into nickel chromium wire.
Nickel chromium wire has high resistivity and heat resistance, is the electric heating element of electric stove, electric iron, electric iron and so on.
High resistance electric heating alloy (high nickel and iron chromium aluminum), high temperature alloy, precision alloy, heat resistant alloy, special alloy, stainless steel are common and commonly used nickel-chromium alloy.
Grade | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
Melting Point ℃ | 1400 | 1380 | 1390 | 1390 | 1390 |
Density g/cm3 | 8.40 | 8.10 | 8.20 | 7.90 | 7.90 |
Resistance μΩ·m 20℃ | 1.09±0.05 | 1.18±0.05 | 1.11±0.05 | 1.04±0.05 | 1.04±0.05 |
Extend Rate % | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 |
Specific heat Capacity J/g·℃ | 0.440 | 0.461 | 0.494 | 0.500 | 0.500 |
Cr20Ni80, Cr30Ni70, Cr15Ni60, 2035D, Cr20Ni35, Cr25Ni20
Simple classification Nickel chromium wire can be divided into nickel chromium round wire, nickel chromium flat wire, nickel chromium belt, etc.
Corrosion resistance of nickel chromium alloy, low price, is the most porcelain dental crown made in China, medical nickel chromium alloy, mainly nickel, chromium and other small amount of harmless metal elements on human body composition, the adverse effect of nickel chromium alloy on human body is mainly caused by nickel.
Can be used as a laboratory resistor.
Traffic police use alcohol detectors in which the color of the substance is dichromate acid, alcohol can act with it to make it color.
It can be used AS a cutting tool to form anti-corrosion alloy layer on the surface of steel and iron by means of plating, deposition and high temperature diffusion. Potassium dichromate and sodium dichromate are strong oxidants in organic synthesis and petroleum industry. Chromium yellow, chromium orange and chromium green can be used as inorganic pigments.
Nickel-chromium alloy in the vacuum coating industry is also widely used, can be made into a certain proportion of alloy target material, do magnetron sputtering coating raw materials.
High resistance electric heating alloy (high nickel and iron chromium aluminum), high temperature alloy, precision alloy, heat resistant alloy, special alloy, stainless steel are common and commonly used nickel-chromium alloy.
High intensity at high temperature
After long-term use and then cooled down, the material will not become brittle
The emissivity of the fully oxidized Ni-Cr alloy is higher than that of Fe-Cr aluminum alloy
There is no magnetic
In addition to sulfur gas, it has good corrosion resistance
Nickel chromium wire and iron chromium aluminum wire are known as electric heating wire, because they are electric resistance alloy, used as electric heating element, or heating element, also known as resistance wire, because it is often used as a resistance element.
Nickel chromium wire has high resistivity, good surface oxidation resistance, high temperature level, and has high strength at high temperature, good processing performance and weldability, can be widely used in metallurgy, household appliances, machinery manufacturing and other heating elements and electrical resistance materials in the electrical industry. Long service life, but because of nickel, so the price is relatively high.
Electric furnace wire is the most widely used, the largest amount of heating material. Its disadvantage is that the working state of its own at a very high temperature (hot state), in the air is prone to oxidation reaction and burn off, from the electric heating energy conversion analysis, due to the production of part of visible light and energy loss, electric furnace wire is often used in spiral state, power will produce inductive effect. It is expensive because it contains nickel.
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