China Tankii Brand Cronix 70 Strip for Corrosion Resistant Electric Heating Elements in Industrial Furnaces with Reducing Atmospheres Manufacture and Factory

Tankii Brand Cronix 70 Strip for Corrosion Resistant Electric Heating Elements in Industrial Furnaces with Reducing Atmospheres

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Cronix 70 is used for corrosion resistant electric heating elements in industrial furnaces with reducing atmospheres. Cronix 70 is highly resistant to oxidation in air. Not recommend for use in MgO sheathed heating elements, or applications using nitrogen or carburizing atmospheres.

electrical parts and electronic components.
electric heating elements (home & industrial use).
industrial furnaces up to 1250°C.
heating cables, mats and cords

Grade		Ni80Cr20	Ni70Cr30	Ni60Cr23	Ni60Cr15	Ni35Cr20	Karma	Evanohm
Nominal composition%	Ni	Bal	Bal	58.0-63.0	55.0-61.0	34.0-37.0	Bal	Bal
	Cr	20.0-23.0	28.0-31.0	21.0-25.0	15.0-18.0	18.0-21.0	19.0-21.5	19.0-21.5
	Fe	≦1.0	≦1.0	Bal	Bal	Bal	2.0-3.0	–
				Al1.0-1.7 Ti 0.3-0.5			Al2.7-3.2 Mn0.5-1.5	Al2.7-3.2 Cu2.0-3.0 Mn0.5-1.5
Max operating temp(°C)		1200	1250	1150	1150	1100	300	400
Resisivity(Ω/cmf,20℃)		1.09	1.18	1.21	1.11	1.04	1.33	1.33
Resisivity(uΩ/m,60°F)		655	704	727	668	626	800	800
Density(g/cm³)		8.4	8.1	8.4	8.2	7.9	8.1	8.1
Thermal Conductivity(KJ/m·h·℃)		60.3	45.2	45.2	45.2	43.8	46.0	46.0
Linear Expansion Coefficient(×10¯⁶/℃)20-1000℃)		18.0	17.0	17.0	17.0	19.0	-	-
Melting Point(℃)		1400	1380	1370	1390	1390	1400	1400
Hardness(Hv)		180	185	185	180	180	180	180
Tensile Strength(N/mm²)		750	875	800	750	750	780	780
Elongation(%)		≥20	≥20	≥20	≥20	≥20	10-20	10-20
Micrographic Structure		austenite	austenite	austenite	austenite	austenite	austenite	austenite
MagneticProperty		Non	Non	Non	Slightly	Non	Non	Non
Fast Life(h/℃)		≥81/1200	≥50/1250	≥81/1200	≥81/1200	≥81/1200	-	-