About  Resistance Heating Wire:
We are the greatest professional manufacturer of resistance heating alloy in China, specializing in Ferro-Chrome (Fe-Cr-AL) wire, Nickel-Chrome (Nichrome) wire, Copper Nickel (Constantan) wire, Stainless steel wire and related products in alloys tailored to meet specific customer requirements

Size details

basic parameters:

basic parameters	Kanthall APMTM	Kanthall
		A-1	AF	D
The highestcontinuous working temperature	1425	1400	1300	1300
The nominal chemical composition,% Cr	22	22	22	22
AI	5.8	5.8	5.3	4.8
Fe	ingredients	ingredients	ingredients	ingredients
Ni	-	-	-	-
The resistivity in 20ºC,Ωmm-2mm-1	1.45	1.45	1.39	1.35
density,g/cm3	7.1	7.1	7.15	7.25
Thermal expansion coefficientK-1 20-750ºC	14×10-6	14×10-6	14×10-6	14×10-6
20-1000ºC	15×10-6	15×10-6	15×10-6	15×10-6
The thermal conductivity 20ºC,Wm-1K-1	13	13	13	13
Specific heat capacity 20ºC,KJkg-1K-1	0.46	0.46	0.46	0.46
Melting pointºC	1500	1500	1500	1500
Probably mechanical characteristics
Tensile strength,N mm-2	680	680	680	650
The yield strength,N mm-2	470	475	475	450
Hardness,Hv	230	230	230	230
Breaking elongation,%	20	18	18	18
900ºCTensile strength,N mm-2	40	34	37	34
Creep strength     800ºC	11	6	8	6
1000ºC	3.4	1	1.5	1
Magnetic	magnetic(In the temperature600ºC)
Emissivity, the oxidation conditions	0.7	0.7	0.7	0.7

Specification:

Alloy Type	Diameter	Resistivity	Tensile	Elongation(%)	Bending	Max.Continuous	Working Life
	(mm)	(μΩm)(20°C)	Strength		Times	Service	(hours)
			(N/mm²)			Temperature(°C)
Cr20Ni80	<0.50	1.09±0.05	850-950	>20	>9	1200	>20000
	0.50-3.0	1.13±0.05	850-950	>20	>9	1200	>20000
	>3.0	1.14±0.05	850-950	>20	>9	1200	>20000
Cr30Ni70	<0.50	1.18±0.05	850-950	>20	>9	1250	>20000
	≥0.50	1.20±0.05	850-950	>20	>9	1250	>20000
Cr15Ni60	<0.50	1.12±0.05	850-950	>20	>9	1125	>20000
	≥0.50	1.15±0.05	850-950	>20	>9	1125	>20000
Cr20Ni35	<0.50	1.04±0.05	850-950	>20	>9	1100	>18000
	≥0.50	1.06±0.05	850-950	>20	>9	1100	>18000
1Cr13Al4	0.03-12.0	1.25±0.08	588-735	>16	>6	950	>10000
0Cr15Al5		1.25±0.08	588-735	>16	>6	1000	>10000
0Cr25Al5		1.42±0.07	634-784	>12	>5	1300	>8000
0Cr23Al5		1.35±0.06	634-784	>12	>5	1250	>8000
0Cr21Al6		1.42±0.07	634-784	>12	>5	1300	>8000
1Cr20Al3		1.23±0.06	634-784	>12	>5	1100	>8000
0Cr21Al6Nb		1.45±0.07	634-784	>12	>5	1350	>8000
0Cr27Al7Mo2	0.03-12.0	1.53±0.07	686-784	>12	>5	1400	>8000

 Advantage:
Nickelchromium alloy with high and stable resistance, corrosion resistance, surface oxidation resistance is good, a better under high temperature and seismic strength, good ductility, good workability and weldability.