Cr20Ni35

Alloy Category: High Electrical Resistance Alloy Base Material Shape: Wire (Round/Flat Wire) Alloy Series: Nickel-Chromium Alloy Implementation Standard: GB/T1234-2012 Certification: ISO9001:2015

Category：

Nickel-chromium series

Keywords：High resistance electric heating alloy | Corrosion-resistant alloy | Thermal spraying materials

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Cr20Ni35

Alloys, due to their excellent physical and chemical properties, are widely used in equipment and materials in various high-temperature and corrosive environments. The following are the application fields and special requirements of Cr20Ni35 alloy.

Electric heating heaters and heating elements: Due to the excellent oxidation resistance and corrosion resistance of Cr20Ni35 alloy, it is widely used in the manufacture of high-temperature heaters and heating elements, such as ovens, electric furnaces, electric heating tubes, and electric heaters. These devices usually operate at high temperatures and require excellent oxidation resistance and corrosion resistance.

Oxidation resistance

Alloys, due to their excellent physical and chemical properties, are widely used in equipment and materials in various high-temperature and corrosive environments.

Corrosion resistance

It can work stably for a long time in acidic, alkaline, and high-temperature environments, and has excellent corrosion resistance.

Corrosion-resistant materials: Cr20Ni35 alloy is also used as a corrosion-resistant material in the fields of marine engineering, chemical industry, and medicine. In these applications, Cr20Ni35 alloy can work stably for a long time in acidic, alkaline, and high-temperature environments, and has excellent corrosion resistance.

Chemical composition

Alloy grade	Chemical composition (mass fraction)/%
	C	P	S	Mn	Si	Cr	Ni	Al	Fe	Others
	No more than
Cr20Ni35	0.08	0.020	0.015	1.00	1.00～3.00	18.0～21.0	34.0～37.0	-	Remainder	—

Physical properties

Alloy grade	Maximum element operating temperature ℃	Melting point (approximate) ℃	Density g/cm³	Resistivity (20 ℃) μΩ ·m	Specific heat capacity J/(g·K	Thermal conductivity (20 ℃) W/(m·K)	Average linear expansion coefficient α (20℃~1000 ℃) 10-*/K	Structure	Magnetic
Cr20Ni35	1100	1390	7.90	1.04	0.50	13	19.0	Austenite	Non-magnetic

Mechanical properties

Alloy grade	Alloy state	Tensile strength Rm/MPa not less than	Elongation A/% not less than
			All wires with diameter >3.00 mm and nickel-chromium strips with thickness >0.200 mm	All wires with diameter 0.10 mm～3.00 mm and iron-chromium-aluminum strips with thickness >0.200 mm
Cr20Ni35	Solid solution	600	25	20

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