Cr20Ni80 80Ni20Cr/NiCr8020 Ultimate Solution for Electric Heating and Chemical Processing in Extreme Temperatures

MOQ:	5kg
Standard Packaging:	Packed with waterproof paper or weave bag, into pallets or wooden case. Special packaging requirements can also be accommodated.
Delivery Period:	3 days
Payment Method:	T/T, D/P
Supply Capacity:	30 Tons per day

Electric Furnaces: Cr20Ni80 is commonly used in electric furnace heating elements due to its ability to withstand high temperatures (up to 1100°C or more) without degrading.

Industrial Ovens: It's used in industrial ovens for heat treatment processes because of its excellent resistance to thermal fatigue and oxidation at elevated temperatures.

Toasters and Electric Stoves: Small consumer appliances like toasters and electric stoves often use heating coils made from Cr20Ni80 for efficient heat generation.

Resistor Wires and Heating Coils

Resistance Wires: Cr20Ni80 is used in resistance wires for heating elements in electric heaters, hair dryers, and other appliances.

Heater Coils: The alloy’s high electrical resistivity and ability to retain its strength at high temperatures make it ideal for use in heater coils for industrial processes and scientific equipment.

Aerospace and Aircraft Applications

Jet Engine Components: Due to its heat resistance and oxidation resistance, Cr20Ni80 is used in components of jet engines and other aerospace applications that must endure extreme temperatures and corrosive environments.

Exhaust Systems: It is sometimes used in aircraft exhaust systems, where high temperatures and corrosive gases are present.

Chemical Processing Industry

Heat Exchangers: Cr20Ni80 is used in heat exchangers and other equipment in chemical processing plants because of its resistance to corrosion and ability to operate in high-temperature, aggressive environments.

Furnace Linings: The alloy is used in linings for industrial furnaces, where high heat and corrosive elements are a concern.

Electrical and Electronics

Thermocouples: In some thermocouple designs, Cr20Ni80 is used for its stable and repeatable thermoelectric properties, especially in high-temperature measurements.

Resistors in Circuits: The alloy’s high resistivity makes it suitable for use in resistors, particularly for those used in power electronics.

Heating Systems in Laboratory Equipment

Laboratory Heaters: Cr20Ni80 is often used in laboratory equipment, such as heating elements in controlled laboratory environments, where precise temperature control is necessary.

Automotive Industry

Exhaust Systems and Catalysts: In some applications, Cr20Ni80 is used for automotive components, such as exhaust manifolds and catalytic converter parts, which must resist high temperatures and corrosive exhaust gases.

Food Industry

Baking and Roasting: Cr20Ni80 is used in commercial baking and roasting ovens, where high temperatures and moisture resistance are essential for continuous operation.

Power Generation

Power Plant Heaters: It is used in boilers and other heat exchangers in power plants, particularly in situations involving high-pressure steam and heat transfer systems.

Corrosion-Resistant Equipment

Marine and Offshore Applications: Due to its corrosion resistance, it is also sometimes used in marine or offshore oil and gas equipment that is exposed to seawater and harsh environmental conditions.

These applications highlight the alloy’s versatility, particularly in environments that involve high heat, oxidation, and corrosion, making Cr20Ni80 a key material in many industries.

Electric Furnaces: Cr20Ni80 is commonly used in electric furnace heating elements due to its ability to withstand high temperatures (up to 1100°C or more) without degrading.

Industrial Ovens: It's used in industrial ovens for heat treatment processes because of its excellent resistance to thermal fatigue and oxidation at elevated temperatures.

Toasters and Electric Stoves: Small consumer appliances like toasters and electric stoves often use heating coils made from Cr20Ni80 for efficient heat generation.

Resistor Wires and Heating Coils

Resistance Wires: Cr20Ni80 is used in resistance wires for heating elements in electric heaters, hair dryers, and other appliances.

Aerospace and Aircraft Applications

Exhaust Systems: It is sometimes used in aircraft exhaust systems, where high temperatures and corrosive gases are present.

Chemical Processing Industry

Furnace Linings: The alloy is used in linings for industrial furnaces, where high heat and corrosive elements are a concern.

Electrical and Electronics

Thermocouples: In some thermocouple designs, Cr20Ni80 is used for its stable and repeatable thermoelectric properties, especially in high-temperature measurements.

Resistors in Circuits: The alloy’s high resistivity makes it suitable for use in resistors, particularly for those used in power electronics.

Heating Systems in Laboratory Equipment

Laboratory Heaters: Cr20Ni80 is often used in laboratory equipment, such as heating elements in controlled laboratory environments, where precise temperature control is necessary.

Automotive Industry

Food Industry

Baking and Roasting: Cr20Ni80 is used in commercial baking and roasting ovens, where high temperatures and moisture resistance are essential for continuous operation.

Power Generation

Power Plant Heaters: It is used in boilers and other heat exchangers in power plants, particularly in situations involving high-pressure steam and heat transfer systems.

Corrosion-Resistant Equipment

These applications highlight the alloy’s versatility, particularly in environments that involve high heat, oxidation, and corrosion, making Cr20Ni80 a key material in many industries.

Chemical Composition Wt.% Cr20Ni80	%	Ni	Fe	C	Si	Mn	P	S	Cr	Al
	Min				0.75				20
	Max	Rest	1	0.08	1.6	0.6	0.02	0.015	23	0.5

GB	JIS	ASTM	DIN EN/DIN	GOST
Cr20Ni80	NCHW-1 NCHR-1	80Ni20Cr	NiCr8020	Х20Н80-Н

Type Performance		Cr30Ni70	Cr15Ni60	Cr20Ni35	Cr20Ni80	Cr20Ni30	Cr25Ni20
Main Chemical composition	Ni	Rest	55.0-61.0	34.0-37.0	Rest	30.0-34.0	19.0-22.0
	Cr	28.0-31.0	15.0-18.0	18.0-21.0	20.0-23.0	18.0-21.0	24.0-26.0
	Fe	≤ 1.0	Rest	Rest	≤ 1.0	Rest	Rest
Max. continuous service temp. of element (℃)		1250	1150	1100	1200	1100	1050
Resistivity at 20 ℃(μΩm)		1.18±0.05	1.12±0.05	1.04±0.05	1.09±0.05	1.06±0.05	0.95±0.05
Density(g/cm3)		8.10	8.20	7.90	8.40	7.90	7.15
Thermal condyctivity (KJ/m·h·℃)		45.2	45.2	43.8	60.3	43.8	43.8
Coefficient of lines expansion (α×10-6/℃)		17.0	17.0	19.0	18.0	19.0	19.0
Melting point (approx.)(℃)		1380	1390	1390	1400	1390	1400
Elonation at rupture(%)		＞20	＞20	＞20	＞20	＞20	＞20
Micrographic structure		Austenite	Austenite	Austenite	Austenite	Austenite	Austenite
Magnetic properties		Non-magnetic	Low-magnetic	Low-magnetic	Non-magnetic	Low-magnetic	Non-magnetic
Note:The various grades of electric resistance alloy material are blended with the amountof rare earth, titanium and other trace elements, to improve the processing performance andextend the period of the uselife.

Dia. (mm)	Cross-sectional area (mm²)	Weight/Meter (g/m)	Resistance/Meter at 20 ℃ (Ω/m)	Dia. (mm)	Cross-sectional area (mm²)	Weight/Meter (g/m)	Resistance/Meter at 20 ℃ (Ω/m)
0.018	0.000255	0.002117	3410-4610	0.25	0.04909	0.4074	20.88-23.54
0.020	0.000314	0.002606	2940-3740	0.28	0.06158	0.5111	16.64-18.76
0.022	0.000380	0.003154	2440-3100	0.30	0.07069	0.5867	14.49-16.35
0.025	0.000491	0.004075	1880-2400	0.32	0.07548	0.6265	12.74-14.36
0.028	0.000616	0.005113	1530-1870	0.33	0.08553	0.7099	12.20-13.40
0.030	0.000707	0.005868	1338-1696	0.38	0.1134	0.9412	9.13-10.09
0.032	0.000804	0.006673	1180-1440	0.40	0.1257	1.0433	8.24-9.108
0.035	0.000962	0.007985	981-1200	0.41	0.132	1.0956	7.68-8.89
0.040	0.001257	0.01043	780.7-954.1	0.45	0.159	1.3197	6.51-7.196
0.045	0.00159	0.0132	594-726	0.50	0.1963	1.6293	5.273-5.829
0.050	0.001963	0.01629	499.6-610.6	0.55	0.2376	1.9721	4.518-4.994
0.055	0.00238	0.01975	407-477	0.60	0.2827	2.3464	3.797-4.197
0.063	0.00312	0.02590	321.41-377.31	0.65	0.3318	2.7539	3.235-3.575
0.070	0.00385	0.03196	260.5-305.9	0.70	0.3848	3.1938	2.789-3.083
0.080	0.005027	0.04172	199.5-234.1	0.75	0.4418	3.6669	2.43-2.686
0.090	0.006362	0.0528	157.6-185.0	0.80	0.5027	4.1724	2.136-2.36
0.100	0.007854	0.0652	127.7-149.9	0.85	0.5674	4.7094	1.891-2.091
0.110	0.009852	0.08177	105.5-123.9	0.90	0.6362	5.2805	1.687-1.865
0.120	0.01227	0.1018	88.67-104.1	0.95	0.7088	5.883	1.46-1.62
0.140	0.01539	0.1277	65.85-75.77	1.00	0.7854	6.5188	1.367-1.511
0.150	0.01767	0.1467	56.75-66.63	1.10	0.9503	7.8875	1.13-1.26
0.160	0.02011	0.01669	50.42-58.00	1.12	0.9852	8.1772	1.05-1.17
0.170	0.022700	0.1884	44.18-51.86	1.18	1.0936	9.0769	0.95-1.05
0.180	0.02545	0.2112	40.26-45.40	1.20	1.313	10.8979	0.79-0.87
0.190	0.02835	0.2353	35.37-41.53	1.30	1.327	11.0141	0.78-0.86
0.200	0.03142	0.2608	32.62-36.78	1.40	1.539	12.7737	0.70-0.77
0.212	0.035300	0.2930	28.41-33.35	1.50	1.767	14.6661	0.60-0.67
0.220	0.03801	0.3155	26.65-30.39	1.60	2.011	16.8924	0.52-0.58

Wires	Dia.(mm)	Tolerance
	0.018-0.025	±0.001
	0.028-0.035	±0.0015
	0.040-0.055	±0.002
	0.070	±0.0025
	0.08-0.10	±0.003
	0.11-0.14	±0.004
	0.16-0.20	±0.005
	0.22-0.25	±0.006
	0.28-0.30	±0.007
	0.32-0.40	±0.01
	0.41-0.50	±0.015
	0.55-0.80	+0.02/-0.03
	0.85-1.00	+0.02/-0.03
	1.10-1.50	±0.03
Note:special specification can be produced as per client's request.

Thickness × Width(mm)	Resistance/meter(20 ℃) (Ω/m)	Surface area/ohm (20℃) (cm²/Ω)	Weight/meter (g/m)	Surface area/meter (cm²/m)
0.09x2.5	5.27	9.84	1.72	51.8
0.08x0.2	74	0.0756	0.122	5.6
0.08x0.3	49.4	0.154	0.183	7.6
0.08x0.4	37	0.259	0.244	9.6
0.08x0.5	29.6	0.392	0.305	11.6
0.08x0.6	24.7	0.551	0.367	13.6
0.08x0.7	21.2	0.737	0.428	15.6
0.08x0.8	18.5	0.951	0.489	17.6
0.08x0.9	16.5	1.19	0.55	19.6
0.08x1.0	14.8	1.46	0.611	21.6
0.08x1.2	12.3	2.07	0.733	25.6
0.08x1.5	9.87	3.2	0.916	31.6
0.08x1.8	8.23	4.57	1.1	37.6
0.08x2.0	7.4	5.62	1.22	41.6
0.07x0.2	84.6	0.0638	0.107	5.4
0.07x0.3	56.4	0.131	0.16	7.4
0.07x0.4	42.3	0.222	0.214	9.4
0.07x0.5	33.9	0.337	0.267	11.4
0.07x0.6	28.2	0.475	0.321	13.4
0.07x0.7	24.2	0.637	0.374	15.4
0.07x0.8	21.2	0.822	0.428	17.4
0.07x0.9	18.8	1.03	0.481	19.4
0.07x1.0	16.9	1.26	0.535	21.4
0.07x1.2	14.1	1.8	0.641	25.4
0.07x1.5	11.3	2.78	0.802	31.4
0.06x0.2	98.7	0.0527	0.0916	5.2
0.06x0.3	65.8	0.109	0.137	7.2
0.06x0.4	49.4	0.186	0.183	9.2
0.06x0.5	39.5	0.284	0.229	11.2
0.06x0.6	32.9	0.401	0.275	13.2
0.06x0.7	28.2	0.539	0.321	15.2
0.06x0.8	24.7	0.697	0.367	17.5
0.06x0.9	21.9	0.875	0.412	19.2
0.06x1.0	19.7	1.07	0.458	21.2
0.06x1.2	16.5	1.53	0.55	25.2
0.05x0.2	118	0.0422	0.0764	5.00
0.05x0.3	79	0.0886	0.115	7.00
0.05x0.4	59.2	0.152	0.153	9.00
0.05x0.5	47.4	0.232	0.191	11.00
0.05x0.6	39.5	0.329	0.229	13.00
0.05x0.7	33.9	0.443	0.267	15.0
0.05x0.8	29.6	0.574	0.305	17.0
0.05x0.9	16.3	0.722	0.344	19.0
0.05x1.0	23.7	0.886	0.382	21.0
Ribbon is rolled by the wire, the actual cross-sectional area of the ribbon is smaller 8％ than calculated by the rectangular.

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