High-Performance Nickel-Chromium-Cobalt Alloy from SIZEN: Built for Durability
At SIZEN, we are dedicated to delivering high-performance materials that meet the most demanding industrial standards. With years of expertise in alloy manufacturing, we pride ourselves on offering innovative solutions that ensure exceptional quality, reliability, and customer satisfaction. Our commitment to excellence has made us a trusted supplier in the alloy industry.
Our nickel-chromium-cobalt alloy combines strength and durability, making it a top choice for industries requiring materials that can withstand extreme conditions. Manufactured using advanced processes, this alloy offers superior resistance to corrosion, heat, and wear. With SIZEN, you can count on high-quality products designed to meet the toughest challenges.
Specifications of Our Nickel-Chromium-Cobalt Alloy
Chemical Composition of Nickel-Chromium-Cobalt Alloy
| Element | Content (%) |
|---|---|
| Nickel | Balance. |
| Chromium | 18.00-21.00 |
| Cobalt | 15.00--21.00 |
| Manganese | 1.00 max. |
| Silicon | 1.00 max. |
| Carbon | 0.13 max. |
| Copper | 0.20 max. |
| Iron | 1.50 max. |
| Titanium | 2.00----3.00 |
| Aluminum | 1.00---2.00 |
| Boron | 0.02 max. |
| Sulfur | 0.015 max. |
| Lead | 0.002 max. |
| Zirconium | 0.15 max. |
Forms of Nickel-Chromium-Cobalt Alloy
| Shape | ||||||
|---|---|---|---|---|---|---|
| Bar/Rod | Pipe/Tube | Coil/Strip | Plate/Sheet | Wire | Fitting (Flange, Elbow, Tee...) | Customize |
Mechanical properties
| Condition | Approximate Tensile Strength | Approximate Operating Temperature | ||
|---|---|---|---|---|
| N/mm² | ksi | °C | °F | |
| Annealing | 800 – 1000 | 116 – 145 | ||
| Annealing and Aging Treatment | 1200 – 1400 | 174 – 203 | 550 | 1020 |
| Elastic Tempering | 1300 – 1500 | 189 – 218 | ||
| Elastic Tempering + Aging Treatment | 1500 – 1800 | 218 – 261 | 350 | 660 |
| The above-mentioned tensile strength is a typical value. If you need a different value, please email for details. | ||||
Tensile Properties
| Heat treatment 8 h/1080°C(1975°F)/AC + 16 h/700°C(1290°F)/AC | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Temperature | 0.1% Proof Stress | 0.2% Proof Stress | Tensile Strength | Elongation on 5.65 | Reduction of Area, | ||||
| °C | °F | MPa | 10³ ksi | MPa | 10³ ksi | MPa | 10³ksi | √So,% | 0 |
| 20 | 68 | 729 | 106 | 752 | 109 | 1175 | 170 | 30 | 47 |
| 100 | 212 | 723 | 105 | 742 | 108 | 1148 | 167 | 27 | 46 |
| 200 | 392 | 689 | 100 | 708 | 103 | 1111 | 161 | 28 | 46 |
| 300 | 572 | 664 | 96 | 681 | 99 | 1087 | 158 | 29 | 48 |
| 400 | 752 | 661 | 96 | 678 | 98 | 1081 | 157 | 32 | 49 |
| 500 | 932 | 657 | 95 | 672 | 98 | 1038 | 151 | 31 | 49 |
| 600 | 1112 | 657 | 95 | 675 | 98 | 1027 | 149 | 26 | 47 |
| 700 | 1292 | 621 | 90 | 640 | 93 | 899 | 130 | 18 | 28 |
| 800 | 1472 | 510 | 74 | 532 | 77 | 657 | 95 | 18 | 26 |
| 900 | 1652 | 288 | 42 | 306 | 44 | 349 | 51 | 30 | 51 |
| 1000 | 1832 | 45 | 7 | 48 | 7 | 76 | 11 | 130 | 99 |
Why Choose SIZEN Nickel-Chromium-Cobalt Alloy
Strict quality control ensures consistent and reliable alloy performance.
Innovative processes deliver alloys that exceed industry standards.
Flexible options tailored to fit your specific needs perfectly.
Trusted worldwide for dependable, high-quality alloy products.
Timely delivery ensured by streamlined production and logistics.
5 MAIN REASONS TO CHOOSE US
1
Unmatched Quality Assurance
Each alloy is meticulously manufactured under stringent quality control to ensure consistent performance and reliability.
2
Advanced Manufacturing Expertise
Our team leverages state-of-the-art technology and extensive industry experience to produce alloys that exceed expectations.
3
Customizable Solutions
We offer flexible options tailored to meet specific requirements, ensuring a perfect fit for your unique needs.
4
Global Reputation for Excellence
Our alloys are trusted by clients worldwide, reflecting our commitment to delivering dependable and superior products.
5
Efficient Supply Chain Management
With streamlined production and delivery processes, we ensure timely supply to meet your project schedules seamlessly.
Characteristics of Nickel-Chromium-Cobalt Alloy
Exceptional Oxidation Resistance
The alloy forms dense oxide layers like Cr₂O₃ and Al₂O₃ at high temperatures, shielding the material from further oxidation. This property ensures durability in extreme environments such as turbine blades and combustion chambers, even under prolonged exposure above 1000°C.
Superior Corrosion Resistance
The high chromium and nickel content protect against acid, chloride, and sulfur-rich environments. This makes the alloy ideal for harsh conditions, such as those in petrochemical processing and marine engineering, where it resists corrosive agents effectively.
Outstanding Resistance to Carbide and Sulfide Attack
With enhanced resistance to carburization and sulfidation, the alloy withstands aggressive chemical attacks in combustion or hydrocarbon-rich environments, preserving its structural stability and extending the lifespan of high-temperature components.
Excellent High-Temperature Mechanical Properties
This alloy retains impressive strength, creep resistance, and stability at elevated temperatures, making it indispensable for manufacturing components exposed to extreme heat, such as aerospace and power-generation equipment.
Enhanced Toughness
Its high fracture toughness ensures resistance to mechanical stresses like impacts and vibrations, maintaining material integrity under dynamic loads, crucial for reliability in critical applications like engines and turbines.
Ease of Machinability
The alloy's machinability allows for precise shaping of complex parts without compromising its integrity. This feature reduces production time and costs, making it suitable for advanced designs in demanding industries.
Diverse Applications
Aerospace Industry
Nickel-chromium-cobalt alloy plays a crucial role in the aerospace sector, particularly in jet engine components such as turbine blades, combustion chambers, and nozzles. These parts operate in extreme conditions, often exceeding 1000°C. The alloy's outstanding oxidation resistance ensures that protective oxide films form on its surface, preventing damage from high-temperature exposure. Its high creep resistance further enhances its durability, maintaining structural integrity under prolonged stress at elevated temperatures. These properties make the alloy indispensable for ensuring the reliability and safety of modern aircraft engines.
Energy Sector
In the energy sector, nickel-chromium-cobalt alloy is a preferred material for gas turbines and nuclear reactors. Gas turbines rely on this alloy for components like turbine vanes and combustor liners, where its resistance to oxidation and corrosion extends equipment life even under high-temperature, high-pressure conditions. In nuclear reactors, the alloy's superior radiation resistance and chemical stability ensure its performance in extreme environments, including exposure to radioactive gases and high thermal loads. These features contribute to improved operational safety and reduced maintenance needs.
Chemical Industry
Chemical processing environments are often harsh, involving corrosive gases, liquids, and high temperatures. Nickel-chromium-cobalt alloy is widely used in heat exchangers, reaction vessels, and piping systems where resistance to acids, alkalis, and sulfur-rich compounds is critical. Its ability to form stable oxide layers protects against corrosion and extends the lifespan of equipment. Additionally, its resistance to sulfidation in high-temperature chemical reactions makes it an ideal material for reactors handling sulfur-containing feedstocks.
Automotive Engineering
High-performance automotive engines demand materials that can withstand extreme heat and mechanical stress. Nickel-chromium-cobalt alloy is used in turbochargers, exhaust systems, and catalytic converters, where its heat resistance and durability significantly improve engine performance. By maintaining stability at high temperatures, the alloy contributes to enhanced fuel efficiency and reduced emissions, aligning with stringent environmental regulations.
Medical Devices
The biocompatibility of nickel-chromium-cobalt alloy makes it suitable for medical applications such as surgical tools, dental implants, and prosthetics. Its corrosion resistance ensures durability when exposed to bodily fluids, while its ability to maintain mechanical integrity under repeated sterilization processes ensures long-term reliability. These properties make the alloy a trusted choice in medical equipment manufacturing.
Marine Applications
Nickel-chromium-cobalt alloy is extensively used in marine engineering, where resistance to seawater corrosion is vital. It is employed in shipbuilding for components such as propeller shafts and heat exchangers, as well as in offshore platforms and undersea exploration equipment. The alloy's ability to resist pitting and crevice corrosion under saline conditions ensures extended service life in these demanding applications.
Electronics and Electrical Equipment
In the electronics industry, nickel-chromium-cobalt alloy is used for high-temperature electrical contacts, connectors, and thermocouples. Its excellent thermal conductivity and stability under extreme temperatures make it reliable in sensitive applications, such as power distribution systems and sensors. These properties ensure consistent performance in both industrial and consumer electronics.
Additive Manufacturing
With the rise of 3D printing technologies, nickel-chromium-cobalt alloy is increasingly used to create complex geometries for high-performance components. Its superior mechanical properties and adaptability make it ideal for manufacturing prototypes and functional parts in aerospace, energy, and medical industries. The use of this alloy in additive manufacturing enables innovative designs that enhance efficiency and reduce material waste.
Frequently Asked Questions About Nickel-Chromium-Cobalt Alloy
What is nickel-chromium-cobalt alloy composed of?
Nickel-chromium-cobalt alloy is primarily composed of nickel, chromium, and cobalt, often with additional elements such as aluminum, molybdenum, and titanium to enhance specific properties like strength, oxidation resistance, and stability at high temperatures.
How is nickel-chromium-cobalt alloy manufactured?
The alloy is produced using vacuum induction melting or vacuum arc remelting to ensure a high level of purity and homogeneity. The material is then processed through forging, rolling, or casting, depending on the intended application.
Is nickel-chromium-cobalt alloy suitable for welding?
Yes, nickel-chromium-cobalt alloy is weldable, but it requires specialized techniques and filler materials to ensure the weld maintains the alloy's strength and corrosion resistance. Preheating and post-weld heat treatment may be necessary to avoid cracking.
Can nickel-chromium-cobalt alloy be recycled?
Yes, the alloy is highly recyclable. Scrap material can be melted and refined to produce new alloys, making it an environmentally sustainable option in manufacturing.
Does the alloy require special storage conditions?
Nickel-chromium-cobalt alloy does not require stringent storage conditions but should be kept in a dry environment to prevent any initial surface corrosion during long-term storage.
Are there any health hazards associated with machining the alloy?
Machining can release fine particles or fumes. Proper ventilation, protective equipment, and adherence to workplace safety guidelines are essential to mitigate any health risks.
How does nickel-chromium-cobalt alloy compare to stainless steel?
While stainless steel is versatile and cost-effective, nickel-chromium-cobalt alloy offers superior high-temperature performance, corrosion resistance, and durability, making it suitable for more demanding applications.
What surface treatments can be applied to this alloy?
Surface treatments like polishing, passivation, and coating with ceramic or PVD (Physical Vapor Deposition) layers can further enhance its properties, such as wear and corrosion resistance.
Can the alloy be joined using brazing or soldering?
Yes, the alloy can be joined using brazing or soldering, although these methods require specific fluxes and filler materials to ensure a strong, corrosion-resistant bond.
Can nickel-chromium-cobalt alloy be heat-treated to enhance properties?
Yes, the alloy can be heat-treated to optimize its mechanical properties, such as strength, hardness, and toughness, depending on its intended use.
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