80Ni-20Cr has high nickel and chromium content and low iron content. It has good oxidation resistance, thermal strength and low positive temperature coefficient below 1000 ℃. At normal temperature, it has high plasticity, cold stamping and welding properties. The alloy becomes single-phase austenite after solid solution treatment, and the structure is stable during use.
Metallographic structure of Cr20Ni80: Cr20Ni80 alloy has a single-phase austenite structure.
Specifications | In stock, can be customized according to customer requirements |
Form | Sheet, bar,wire |
Classification | Superalloy |
Alloy | % | Ni | Cr | S | C | Mn | Si | Al | Fe |
Cr20Ni80 | Min | Balance | 20 |
|
|
| 0.75 |
|
|
Max | Balance | 23 | 0.020 | 0.08 | 0.60 | 1.6 | 0.50 | 1.0 |
Type | Heat treatment | Temperature0/℃ | Tensile strength EbMPa2 | Elongation A/%≥ | Section shrinkage Z/%≥ |
Wire | solid solution state | 700 | 980 | 10 | - |
Density | 8.4 g/cm3 | Resistivity (20℃) | 1.09μΩ·m |
melting point | 1374-1420℃ | Thermal Conductivity | 15 W/（m·K） |
Cr20Ni80 nickel-chromium alloy wireis widely used as a high-resistance alloy for electric heating and wire-wound resistors in metallurgy, chemical industry, electrical and other industries. Cr20Ni80 alloy wire has high resistivity, good resistance to oxidation and oxidation. Corrosion resistance, good machinability and weldability, and high strength at high temperatures.
As a heating element,Cr20Ni80is mainly used in periodic heat treatment furnaces with temperatures below 1000°C, such as carburizing furnaces, bell jar furnaces, ammonia decomposition furnaces, etc.
Cr20Ni80 nickel-chromium alloy wire is used in high-end electric heating tubes and electric heating wires of high-end household electric heaters.
Cr20Ni80 nickel-chromium alloy wire can also be used as high-quality heat-resistant steel structural parts, such as high-temperature mesh belts, grills, etc.
The manufacturing process of stainless steel and alloys involves multiple steps to transform raw materials into flat,rectangular sheets or plates made of stainless steel and alloys. Here are a few key steps for stainless steel and alloys:
Molten stainless steel and alloys are cast into large ingots or billets through a casting process.
During the hot rolling process,the thickness of the steel ingot is gradually reduced and elongated to form long strips or coils.
Annealing involves heating stainless steel and alloys to a specific temperature and then slowly cooling it.
Cold rolling is carried out through rolling mills to reduce thickness to meet customer specifications.
Wuxi Walmay Metal Co,Ltd is a comprehensive processing group of Alloy Steel、Forged Parts Fitting、Titanium Alloy、Stainless Steel、Special Welding Wireseries， and more than 800 specifications.
Our group has been engaged in the domestic and global market for more than ten years with rich steel experience and can offer professional advice for customers inapplications with different materials.
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Heat treatment and annealing: Wuxi Walmay Metal can heat treat certain 400 series stainless steels.
Material Reliability Identification (PMI): Wuxi Walmay Metal can complete this testing in-house.
Ut Testing: Ultrasonic testing (UT) uses high-frequency sound energy to inspect and measure stainless steel products.
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