Graphite for Powder Metallurgy

Graphite for Powder Metallurgy: Key Properties and Industrial Applications

What is Powder Metallurgy?

Powder metallurgy (PM) is a manufacturing process that uses metal powders—including graphite—to produce solid components through compaction and sintering. This method is widely used in the automotive, aerospace, medical, and tooling industries for its efficiency, minimal material waste, and high precision.

In PM, graphite plays both a functional and technical role, acting as a lubricant, sintering aid, and property modifier.

Functions of Graphite in PM

1. Internal Lubricant

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• Reduces friction during compaction

• Enhances mold filling

• Minimizes die wear

  
  

2. Sintering Aid

• Promotes diffusion bonding between metal particles

• Improves consistency of sintered structures

  
  

3. Property Enhancer

• Boosts thermal and electrical conductivity

• Adds self-lubricating properties to final components

Recommended Graphite Types

Natural Flake Graphite

• Suitable for standard PM applications

• Purity: 85–99.9%

• Common sizes: -200 mesh, -325 mesh

Microcrystalline (Amorphous) Graphite

• Cost-effective with good lubricity

• Used in friction components

Synthetic Graphite

• High purity and uniform particle size

• Ideal for high-spec technical parts

Optimal Particle Sizes

Typical Applications

• Automotive sintered parts (gears, bushings)

• Self-lubricating bearings

• Cutting tools

• Brake pads

• Sintering electrodes

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Why Choose Our Graphite?

• Stable carbon content, low moisture

• Homogeneous particle distribution

• Easy to mix with other metal powders

• Technical customization available

  
  

At Graphitezone.com, we offer technical support, free samples, and global shipping for both natural and synthetic graphite.

Contact Us

Looking for reliable graphite for powder metallurgy? Our team is ready to recommend the right grade for your production process.