Stellite12 Cobalt Alloy Sheet – Premium Cobalt Based Alloy from China Manufacturer

The Stellite12 Cobalt Alloy Sheet is a premium cobalt-based alloy designed for exceptional wear and corrosion resistance. Known for its durability, this cobalt chromium alloy is ideal for demanding industrial applications, offering superior performance in high-temperature and abrasive environments. Its unique cobalt alloy composition ensures reliability across various industries.

Price: Contact Us for a Custom Quote

For detailed pricing and quotes on Stellite12 Cobalt Alloy Sheet, please contact our sales team. Pricing terms are flexible based on order volume and customization requirements.

Specifications

Thickness: 0.5 mm – 10 mm
Width: Up to 1000 mm
Length: Customizable, up to 3000 mm
Surface Treatment: Polished, annealed, or as-rolled
Standards: ASTM, ASME, or custom specifications

Key Features (Advantages)

Outstanding wear and abrasion resistance
High corrosion resistance in harsh environments
Excellent performance at elevated temperatures
Versatile for various fabrication processes
Long service life, reducing maintenance costs

Applications of Stellite12 Cobalt Alloy Sheet

The Stellite12 Cobalt Alloy Sheet is widely used in industries such as:

Aerospace: Turbine blades and engine components
Oil and Gas: Valve seats and pump components
Power Generation: Wear-resistant linings
Medical: Orthopedic implants due to cobalt chrome biocompatibility
Chemical Processing: Corrosion-resistant equipment

Chemical Composition

Element	Percentage (%)
Cobalt (Co)	Balance
Chromium (Cr)	28.0 - 32.0
Tungsten (W)	7.0 - 9.0
Carbon (C)	1.1 - 1.7
Nickel (Ni)	≤ 3.0
Iron (Fe)	≤ 3.0

Mechanical Properties

Property	Value
Tensile Strength	950 MPa (min)
Yield Strength	600 MPa (min)
Elongation	10% (min)
Hardness	40 - 48 HRC

Chemical Properties

The Stellite12 Cobalt Alloy Sheet exhibits excellent resistance to acids (e.g., sulfuric and hydrochloric) and alkalis, making it suitable for chemical processing environments. However, it is not recommended for prolonged exposure to highly oxidizing acids like nitric acid. Ensure compliance with environmental regulations regarding cobalt usage in sensitive applications.

Things to Note (Limitations)

High-Temperature Limits: Prolonged exposure above 800°C may reduce mechanical properties.
Brittleness: High carbon content may cause brittleness in certain forming processes.
Cost: Higher cobalt alloy price compared to stainless steel alternatives.

Corrosion Data for Stellite12 Cobalt Alloy Sheet

Environment	Corrosion Resistance
Atmospheric	Excellent
Mild Chemical (e.g., dilute acids)	Very Good
Seawater	Good
Oxidizing Acids	Moderate

Best Welding and Manufacturing Practices

Recommended welding methods for Stellite12 Cobalt Alloy Sheet include:

TIG (Tungsten Inert Gas) welding
Plasma Arc welding
Shielded Metal Arc welding (with precautions)

Fabrication techniques include cutting, forming, and machining. Preheating and post-weld heat treatment are advised to minimize cracking. Use high-speed steel or carbide tools for machining.

What Customers Say About

Frequently Asked Questions

Q: How does Stellite12 differ from other cobalt-based alloys?

A: Stellite12 offers a balanced combination of wear and corrosion resistance, with a higher carbon content than Stellite 6, making it ideal for abrasive environments.

Q: What industries use Stellite12 Cobalt Alloy Sheet?

A: It’s widely used in aerospace, oil and gas, power generation, chemical processing, and medical industries.

Q: Is it suitable for high-temperature applications?

A: It performs well up to 800°C but may lose hardness beyond this threshold.

Q: How does it compare to stainless steel?

A: Stellite12 outperforms stainless steel in wear and corrosion resistance but is more expensive.

Q: What surface finishes are available?

A: Options include 2B, No.1, polished, and brushed finishes, customizable to project needs.