Stellite3 Cobalt Alloy Pipe – Top Cobalt Alloy from Premier China Factory

Stellite3 Cobalt Alloy Pipe, a high-performance chromium cobalt nickel alloy, is designed for exceptional wear and corrosion resistance. Produced by our China manufacturer, this cobalt alloy steel excels in extreme conditions, making it a top choice for industries requiring durable piping solutions. Its cobalt alloy composition delivers superior strength and longevity.

Price: Contact Us for a Custom Quote

For a customized quote on Stellite3 Cobalt Alloy Pipe, contact our sales team. Pricing is based on specifications, order quantity, and delivery terms. Our China enterprise ensures competitive rates for your needs.

Specifications

Outer Diameter: 10 mm to 300 mm
Wall Thickness: 1 mm to 30 mm
Length: Up to 12 meters (customizable)
Surface Treatment: Pickled, polished, or annealed
Standards: ASTM B619, ASME SB619

Key Features (Advantages)

Outstanding wear resistance under high mechanical stress
Excellent corrosion resistance in aggressive environments
High hardness (HRC 52-60) for extended durability
Thermal stability up to 1150°C
Flexible customization from our China factory

Applications of Stellite3 Cobalt Alloy Pipe

Stellite3 Cobalt Alloy Pipe is utilized across various cobalt alloy uses in industries such as:

Petrochemical: Piping for corrosive fluids and gases
Aerospace: Exhaust systems and turbine components
Marine: Piping for seawater exposure
Power Generation: Heat exchanger and boiler pipes
Mining: Slurry transport systems

Chemical Composition

Element	Percentage (%)
Cobalt (Co)	Balance
Chromium (Cr)	29-33
Tungsten (W)	12月14日
Carbon (C)	2.3-2.8
Nickel (Ni)	≤2.5
Iron (Fe)	≤2.0

Mechanical Properties

Property	Value
Tensile Strength	900-1050 MPa
Yield Strength	650-800 MPa
Elongation	8-12%
Hardness	HRC 52-60

Chemical Properties

Stellite3 Cobalt Alloy Pipe offers robust resistance to acids (e.g., hydrochloric and phosphoric) and alkalis, ideal for harsh chemical settings. It adheres to environmental standards, with no restricted substances in its cobalt alloy composition. However, exposure to highly concentrated oxidizing agents may necessitate protective measures.

Things to Note (Limitations)

Despite its strengths, Stellite3 Cobalt Alloy Pipe has some limitations:

Potential softening above 1150°C during prolonged exposure
Limited ductility in cryogenic conditions
High hardness requires specialized machining tools

Corrosion Data for Stellite3 Cobalt Alloy Pipe

Environment	Corrosion Rate (mm/year)
Atmospheric (Industrial)	<0.01
Seawater	0.03-0.06
10% Hydrochloric Acid	0.15-0.4
5% Phosphoric Acid	<0.08

Best Welding and Manufacturing Practices

Stellite3 Cobalt Alloy Pipe supports multiple welding methods, including:

TIG Welding: Optimal for precise, high-quality welds
Plasma Arc Welding: Effective for high-carbon alloys
Gas Metal Arc Welding: Suitable for thicker pipes

Fabrication involves hot forming at 1050-1200°C, followed by annealing to reduce stresses. Machining requires diamond or carbide tools due to the alloy’s hardness.

What Customers Say About

Frequently Asked Questions

Q: How does Stellite3 differ from other Stellite alloys?

A: Stellite3 has a higher carbon content than Stellite 6, offering greater wear resistance but lower toughness.

Q: What are the primary cobalt alloy uses for this pipe?

A: It’s ideal for petrochemical, aerospace, marine, and power generation applications.

Q: What is the difference between Stellite3 and other cobalt alloys?

A: Stellite3 has a higher carbon content, enhancing wear resistance but reducing ductility compared to alloys like Stellite6.

Q: What industries benefit most from Stellite3 Cobalt Alloy Pipe?

A: Aerospace, chemical processing, and oil & gas industries leverage its corrosion and heat resistance.

Q: What welding methods are best for Stellite3?

A: TIG and plasma arc welding provide the best results for integrity and finish.