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Cr20Ni40 NiCr Alloy | High Temperature Electric Heating Element Material – SPARK

Cr20Ni40 NiCr Alloy | High Temperature Electric Heating Element Material – SPARK

GITANE specialize in the production of high-quality Cr20Ni40 nickel-chromium alloy, a premium material designed to meet the most demanding corrosion and high-temperature applications. With decades of experience in the alloy industry, we are committed to providing our global customers with innovative, reliable, and cost-effective solutions.

Product Introduction

As a flagship product of GITANE (Beijing Shougang Gitane New Materials Co., Ltd.), our Cr20Ni40 is distinguished by its exceptional morphological stability and weldability. While traditional alloys may struggle in fluctuating thermal cycles, Cr20Ni40 maintains its strength and structural integrity up to 1100°C. Its standout feature is its superior resistance to stress corrosion cracking and chemical attack, making it the preferred choice for chemical processing reactors, marine engines, and specialized heating systems. Whether you are operating in saltwater environments or handling acidic industrial media, the Cr20Ni40 alloy provides a durable, non-magnetic, and cost-effective thermal solution with a high emissivity of 0.88.

Product Features

Key Features

Exceptional Corrosion Resistance: Our Cr20Ni40 alloy, with its high nickel content (40%), exhibits superior resistance to atmospheric corrosion, chemical attack, and stress corrosion cracking. This makes it ideal for use in harsh environments where durability is critical.
High-Temperature Performance: Despite its lower chromium content, Cr20Ni40 maintains excellent oxidation resistance up to 1100°C , ensuring reliable performance in high-temperature applications.
Superior Mechanical Properties: The alloy offers excellent strength and ductility at both room temperature and elevated temperatures, providing reliable performance under mechanical stress.
Customization options: We can customize Cr20Ni40 alloy to meet your specific requirements, including wire, strip, components, as well as customized dimensions and surface finish.

Technical Parameters

Parameter Value
Maximum Continuous Operating Temperature (℃) 1100
Cr (%) 20
Fe (%) Balance
Ni (%) 38
Resistivity 20℃ (Ω·mm²/m) 1.04
Ct @800℃ 1.16
Ct @1000℃ 1.19
Ct @1100℃ 1.20
Density (g/cm³) 7.9
Melting Point (℃) 1390
Tensile Strength (MPa) 700
Elongation (%) 25
Tensile Strength at 900℃ (MPa) 120
Magnetism No
Emissivity 0.88
Thermal Expansion (10⁻⁶/K) 19.0

Application fields

Our Cr20Ni40 alloy is widely used in:
Chemical Processing Equipment: Used in reactors, pipes, and valves for their excellent corrosion resistance to acids, bases, and other chemicals.
Aerospace Components: Utilized in aircraft engines, turbines, and other aerospace applications requiring high-temperature resistance and corrosion protection.
Marine Equipment: Employed in marine engines, propellers, and other marine components for their resistance to saltwater corrosion.
Heating Elements: Used in electric furnaces, ovens, and heating systems where high-temperature performance and corrosion resistance are essential.

Technical Support

At GITANE (SPARK), we leverage over 50 years of metallurgical expertise to provide more than just raw materials. Our technical support team ensures your application achieves maximum efficiency:
Application-Specific Material Selection: Our engineers assist you in evaluating the compatibility of Cr20Ni40 against standard FeCrAl alloys, focusing on its superior performance in corrosive atmospheres and non-magnetic requirements.
Engineering & Custom Winding: Beyond supplying wire and strip, we offer design support for customized heating elements. Utilizing high-speed CNC automatic winding technology, we can provide pre-formed components that match your specific power capacity and dimensions.
Comprehensive Quality Documentation: Every shipment is backed by ISO9001 and ISO14001 certified testing. We provide Material Test Reports (MTR) covering:
·Precise resistivity checks (standard 1.04 Ω·mm²/m).
·Ct correction coefficients (up to 1100°C).
·High-temperature tensile strength verification (120 MPa at 900°C).
Corrosion Resistance Consultation: For clients in the chemical and marine sectors, we provide data-driven advice on the alloy’s life expectancy in saltwater, acids, and alkaline environments.

Why choose our GITANE?

Advanced Technology: We invest heavily in research and development to ensure our products meet the highest industry standards.
Quality Assurance: Our manufacturing processes are ISO9001 and ISO14001 certified, guaranteeing consistent quality.
Global Supply: We serve customers worldwide, providing timely delivery and excellent customer service.
Custom Solutions: Our team of experts can develop tailored solutions to meet your unique needs.

For more information about our Cr20Ni40 alloy or to request a quote, please contact us today. We look forward to hearing from you!

Available product specifications

Cold Drawn Wire: Φ0.01-10.00mm
Hot Rolled Rod:Thickness: Φ5.5-12.0mm
Flat Wire:·Thickness:0.05-0.35mm ·Width:0.50-4.50mm
Cold Rolled Strip:·Thickness:0.05-0.35mm ·Width:0.50-4.50mm
Hot Rolled Strip:·Thickness:4.0-6.0mm ·Width:15.0-40.0mm
Bar: Φ10.0-20.0mm

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