NiCr Alloy

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Nickel-Chrome Alloy

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NiCr Alloys (NiCr) are high-performance materials known for their excellent resistance to high temperature oxidation and corrosion and good wear resistance. Composed primarily of nickel (Ni) and chromium (Cr), with trace amounts of iron (Fe) and other elements, NiCr alloys maintain their ductility and good form stability even under extreme heat and thermal cycling conditions. These properties make them widely used in industrial heating applications, aerospace components, and high-temperature electrical resistance wires.

Available grades: Cr10Ni90, Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30

Maintains mechanical stability at high temperatures between 1100°C - 1200°C, preventing deformation and structural degradation
Forms a protective chromium oxide layer, preventing oxidation and surface degradation, making it ideal for extreme environments
Provides high electrical resistance, making it suitable for electrical heating elements and resistance wires
Ideal for applications where magnetic interference must be minimized, ensuring reliable performance in electronics and aerospace applications
Remains ductile and easy to process, even after prolonged high-temperature exposure
Withstands frequent temperature fluctuations, making it ideal for industrial heating systems and automotive exhaust applications
Due to its high durability and minimal permanent elongation, NiCr alloy components retain their structural integrity over extended use providing longer service life

Industrial & domestic heating systems: Used as heating elements in industrial and residential electric furnaces, including electric resistance wires and heating coils
Aerospace components: Applied in aircraft engine parts and aerospace structural components requiring high-temperature durability
Chemical & petrochemical processing: Resistant to corrosive environments, making it ideal for reactor vessels, pipelines, and processing equipment
Electronics & electrical engineering: Commonly used in resistors, sensors, and other precision electronic components
Automotive industry: Essential for turbochargers, exhaust systems, and other high-temperature components
Medical equipment: Utilized in dental prosthetics (e.g., porcelain-fused-to-metal crowns) and orthopedic implants due to its biocompatibility and durability
Nuclear engineering: Critical for nuclear power plant components exposed to extreme radiation and high temperatures

Product Forms

NiCr Alloy Wire

NiCr Alloy Rod

NiCr Alloy Strip

Wire 0.05-7.5
Rod 8-50
Flat Wire (0.05-0.35)*(0.5-6.0)
Strip/Foil (0.5-2.5)*(5-40)

Chemical Composition

Grades		Cr10Ni90	Cr20Ni80	Cr30Ni70	Cr15Ni60	Cr20Ni35	Cr20Ni30
Main Chemical Composition (%)	Nickel (Ni)	90	Rest	Rest	55.0-61.0	34.0-37.0	30.0-34.0
	Chromium (Cr)	10	20.0-23.0	28.0-31.0	15.0-18.0	18.0-21.0	18.0-21.0
	Iron (Fe)	--	≤1.0	≤1.0	Rest	Rest	Rest

Physical & Mechanical Properties

Grades	Cr10Ni90	Cr20Ni80	Cr30Ni70	Cr15Ni60	Cr20Ni35	Cr20Ni30
Max. Service Temperature (°C)	1300	1200	1250	1150	1100	1100
Melting Point (°C)	1400	1400	1380	1390	1390	1390
Density (g/cm³)	8.7	8.4	8.1	8.2	7.9	7.9
Resistivity at 20℃ (μΩ·m)	--	1.09±0.05	1.18±0.05	1.12±0.05	1.00±0.05	1.04±0.05
Elongation at Rupture (%)	≥20	≥20	≥20	≥20	≥20	≥20
Specific Heat (J/g.℃)	--	0.44	0.461	0.494	0.5	0.5
Thermal Conductivity (KJ/m.h.ºC)	--	60.3	45.2	45.2	43.8	43.8
Coefficient of Lines Expansion (α×10⁻⁶/20~1000ºC)	--	18	17	17	19	19
Micrographic Structure	--	Austenite	Austenite	Austenite	Austenite	Austenite
Magnetic Properties	--	Non-magnetic	Non-magnetic	Non-magnetic	Weak magnetic	Weak magnetic

Standard Compliant

Our production adheres to JIS G4313 standards, ensuring compliance with international quality benchmarks.
Equivalent overseas standards are listed for reference.

ISO 6208, 15156
ASTM B163, B166, B167, B168, B446
DIN 17742, 17750

AMS 5540, 5666
GB/T 1234, 2077, 4437

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