3J21 Cobalt Alloy Sheet – High-Performance Cobalt Steel from China Manufacturer

The 3J21 Cobalt Alloy Sheet is a premium cobalt steel alloy designed for high-stress applications. Renowned for its exceptional strength and elasticity, this stellite alloy excels in aerospace, medical, and precision engineering. Its cobalt alloy composition ensures durability and performance in challenging environments, making it a preferred choice for cobalt alloy uses in critical components.

Price: Contact Us for a Custom Quote

For competitive pricing on 3j21 Cobalt Alloy Sheet, contact our sales team for a personalized quote. Pricing terms are tailored based on order volume and specifications. Reach out today to discuss your needs.

Specifications

Thickness: 0.1 mm to 10 mm
Width: Up to 1000 mm
Length: Customizable, up to 2000 mm
Surface Treatment: Polished, annealed, or as-rolled
Tolerance: ±0.01 mm for thickness, ±0.5 mm for width
Standards: ASTM, GB/T compliant

Key Features (Advantages)

Superior corrosion resistance, ideal for harsh environments
High tensile strength for structural integrity
Excellent wear resistance, extending product lifespan
Stable performance at elevated temperatures
Customizable dimensions for diverse applications

Applications of 3j21 Cobalt Alloy Sheet

The 3j21 Cobalt Alloy Sheet is versatile, serving industries such as:

Aerospace: Turbine blades, engine components
Medical: Surgical implants, dental tools
Industrial: Cutting tools, wear-resistant coatings
Energy: Components in nuclear and chemical reactors

Chemical Composition

Element	Percentage (%)
Cobalt (Co)	39-41
Nickel (Ni)	29-31
Iron (Fe)	Balance
Chromium (Cr)	19-21
Molybdenum (Mo)	1.5-2.5
Carbon (C)	≤0.05

Mechanical Properties

Property	Value
Tensile Strength	800-1000 MPa
Yield Strength	500-600 MPa
Elongation	20-30%
Hardness (HRC)	30-35

Chemical Properties

The 3j21 Cobalt Alloy Sheet exhibits excellent resistance to acids (e.g., sulfuric and hydrochloric) and alkalis, making it suitable for chemical processing environments. It complies with environmental regulations, with low carbon content ensuring minimal ecological impact.

Things to Note (Limitations)

While highly durable, the 3j21 Cobalt Alloy Sheet has limitations:
- May experience reduced performance above 800°C
- Not recommended for prolonged exposure to highly oxidizing acids
- Requires specialized tools for machining due to hardness

Corrosion Data for 3j21 Cobalt Alloy Sheet

Environment	Corrosion Rate (mm/year)
Atmospheric (Urban)	≤0.01
Mild Chemical (5% NaCl)	≤0.02
Sulfuric Acid (10%)	0.05-0.1

Best Welding and Manufacturing Practices

Recommended welding methods for 3j21 Cobalt Alloy Sheet include TIG and MIG welding, with proper shielding gas to prevent oxidation. Forming techniques such as cold rolling and annealing enhance workability. Precision cutting requires carbide tools due to the alloy’s hardness.

What Customers Say About

Frequently Asked Questions

Q: How does 3j21 Cobalt Alloy Sheet differ from other stellite materials?

A: The 3j21 Cobalt Alloy Sheet has a balanced cobalt-nickel composition, offering superior corrosion resistance compared to standard stellite alloys.

Q: What industries benefit most from this cobalt steel alloy?

A: Aerospace, medical, and industrial sectors leverage its strength and durability.

Q: Can it withstand high temperatures?

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

Q: What welding techniques are recommended?

A: TIG and MIG welding are ideal for maintaining the alloy’s integrity.

Q: How can I get a competitive cobalt alloy price?

A: Contact our sales team for tailored pricing based on your specifications and order volume.