Cr20Ni80 (executive standard GB / t1234-2012)
Chemical composition of Cr20Ni80:
*37329 | % | *38124; | *30967 | *30827; | *38221; | *38109 | *30899 | *38192; | *30789 | 38081; |
Cr20Ni80. | (a) | 20 | td> | td> | 20313; | 0.75 | td> | |||
(c) | 23 | 0.020 | 0.015 | 37327; | 0.50 | 08 | 0.60 | 1.6 | 1.0 |
Physical properties of Cr20Ni80:
density | 8.4 g/cm3 | resistivity(20℃) | 1.09 μΩ·m |
1374-1420℃ | thermal conductivity | 15 W/(m·K) |
Mechanical properties of Cr20Ni80 alloy in solution state at room temperature:
Alloy state | tensile strengthσb (Mpa) | Elongatio nA5 % |
Cr20Ni80 | ≥650 | ≥25 |
This alloy has the following properties:
80ni-20cr has high content of nickel and chromium and low content of iron. It has good oxidation resistance, thermal strength and low positive temperature coefficient below 1000 ℃. At room temperature, it has high plasticity, cold stamping and welding properties. The alloy is single-phase austenite after solution treatment, and its structure is stable in use.
Metallographic structure of Cr20Ni80:
Cr20Ni80 alloy is single-phase austenite structure
Cr20Ni80 is applied in the following fields:
1. As a heating element, it is mainly used for periodic heat treatment furnace with temperature below 1000 ℃, such as carburizing furnace, bell jar furnace, ammonia decomposition furnace, etc
2. Electric heating wire for high-grade electric heating pipe and high-grade household electric heater
3. Resistance tape for high quality resistance box
4. It can also be used as high-quality heat-resistant steel structure parts, such as high-temperature mesh belt, burning frame, etc
Products of our company:
Wire, wire, flat strip forming, furnace bar, strip, forging bar, hot rolling bar, cold and hot plate, tube, machining finished product
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