What is the maximum temperature that plasma spray coatings can handle?

Depending on the coating material, it can withstand up to 1200°C surface exposure.

Can plasma coating be done on aluminium or stainless steel?

Yes. We coat a wide variety of base metals, including MS, SS, aluminium, and titanium.

How thick is a typical plasma spray coating?

Coating thickness ranges from 0.1 mm to 2 mm, depending on application and part geometry.

Do you offer coating removal and re-coating services?

Absolutely. We provide stripping, recoating, and dimensional restoration services for used parts.

Do you handle single-part or bulk coating jobs?

Yes, from one-off components to high-volume batches—we deliver both with equal care.

Which base materials can you coat?

Mild steel, stainless steel, aluminium, titanium, and more. As long as the part can tolerate light grit blasting.

Do you offer post-coating machining?

Yes. We provide full post-coating services like grinding, lapping, and polishing.

Tungsten Carbide Coating in India | Hard Chrome Replacement

Q: What hardness does tungsten carbide coating achieve?

Tungsten carbide coatings usually have a hardness of 1000–1400 HV (Vickers hardness). These coatings are known for excellent wear, abrasion, and corrosion resistance in tough industrial settings.

Q: Can worn industrial rolls and shafts be recoated with tungsten carbide?

Yes, worn industrial rolls and shafts can be, and frequently are, recoated with tungsten carbide to restore their original dimensions and enhance their wear resistance. This process is a cost-effective alternative to replacing expensive machinery components, often providing a harder, more durable surface than the original.

Q: Is tungsten carbide coating suitable for components exposed to chemical environments?

Yes, tungsten carbide coatings provide good resistance to mild chemical attack and oxidation in addition to exceptional wear and abrasion resistance. For highly aggressive chemical environments, the choice of binder (cobalt vs. nickel-based) significantly affects corrosion performance and should be selected based on the specific chemicals and temperatures involved.

Q: What is the typical surface finish achievable after tungsten carbide coating?

Post-coating, tungsten carbide surfaces can be ground and finished to achieve roughness values as low as Ra 0.1 µm, making them suitable for precision applications such as pump plungers, printing rolls, and measuring equipment. The final surface finish depends on the post-coating grinding process and the component's functional requirements.

Engineered Protection, Every Time. No Jargon, Just Results That Matter.

Plasma Spray Processors delivers tungsten carbide coating services in Mumbai and pan-India, applying WC-Co, WC-CoCr, and WC-Ni grades via HVOF and plasma spray processes. Our coatings achieve 62–72 HRC hardness with less than 1% porosity, providing outstanding wear, erosion, and corrosion resistance for industrial components in steel mills, oil & gas, aerospace, and power generation. We have coated over 2,000 rolls and offer recoating of worn parts within 4–7 days.

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Why Tungsten Carbide Coating?

High Hardness (up to 72 HRC)

Tackle abrasive, sliding, and impact wear scenarios with a surface engineered for durability.

Superior Wear & Erosion Resistance

Proven performance for Rotary Shafts, Rollers, Pump Sleeves, and Plungers facing abrasive slurries or particles.

Corrosion Resistance

Maintains integrity under chemical, salt, and moisture attack.

Thermal Stability (up to 500°C for WC-CoCr grades)

Ideal for environments where productivity demands high-temperature operation.

Coating Materials We Use

We use premium-grade tungsten carbide and alloy-based materials to deliver exceptional hardness, wear resistance, and corrosion protection for industrial applications.

Sr No.	Material	Property	Applications
1	Tungsten Carbide-Cobalt (WC-Co)	Outstanding wear and erosion resistance with high hardness	Pump sleeves, turbine shafts, mechanical seals
2	Tungsten Carbide-Cobalt-Chromium (WC-Co-Cr)	Excellent wear and corrosion resistance for severe operating environments	Hydraulic rods, valves, compressor rotors
3	Tungsten Carbide-Nickel (WC-Ni)	Improved corrosion protection with moderate wear resistance	Paper rolls, piston rods, and chemical equipment
4	Chromium Carbide-Nickel Chromium (Cr₃C₂-NiCr)	High-temperature oxidation and corrosion resistance	Boiler tubes, aerospace parts, and engine components
5	Nickel-Based Alloys (NiCr, Inconel)	Exceptional thermal stability and chemical resistance	Gas turbines, exhaust systems, and process valves
6	Cobalt-Based Alloys (Stellite Series)	Excellent galling, wear, and corrosion resistance	Cutting tools, bearing surfaces, and valve seats

Technical Highlights

1. Typical Hardness: 62 - 72 HRC (Rockwell C)
2. Bond Strength: > 70 MPa
3. Coating Thickness: 50 to 400 microns
4. Porosity: < 1% typical
5. Surface Finish: Can be ground and lapped to a mirror finish

Advanced Tungsten Carbide Coating for Extreme Durability

Industries We Serve

Steel & Rolling Mills - Sink rolls, bridle rolls, run-out table rolls
Textile - Guide, tension and calendar rollers
Oil & Gas - Pump sleeves, valve stems, plungers
Aerospace - Compressor blades, shafts, bearings
Power Generation - Boiler tubes, shaft sleeves
Automotive & Tooling - Dies, punches, forming tools

The Tungsten Carbide Coating Process

Surface Preparation

Grit-blasting to achieve proper surface roughness and maximize adhesion.

Material Selection

WC-Co, WC-CoCr, and WC-Ni grades, matched to your application’s mechanical and environmental demands.

Advanced Spraying (HVOF/Plasma Spray)

High velocity oxy-fuel or Plasma Arc Systems deliver dense, strong, low-porosity coatings.

Quality Assurance

Coating is tested for hardness, thickness, adhesion (per ASTM C 633), and finish.

Why Work With Plasma Spray Processors?

4+ Decades Serving Indian Industry

Your local partner with global standards.

Certified Technicians & ISO Processes

Every part meets or exceeds client and ASTM/ISO benchmarks.

Pickup & Delivery Logistics

Fast turnaround, minimal disruption.

Proven Results

Reference case studies and technical data available for review.

Frequently Asked Questions

What hardness does tungsten carbide coating achieve?

Tungsten carbide coatings usually have a hardness of 1000-1400 HV (Vickers hardness). These coatings are known for excellent wear, abrasion, and corrosion resistance in tough industrial settings.

Can worn industrial rolls and shafts be recoated with tungsten carbide?

Yes, worn industrial rolls and shafts can be, and frequently are, recoated with tungsten carbide to restore their original dimensions and enhance their wear resistance. This process is a cost-effective alternative to replacing expensive machinery components, often providing a harder, more durable surface than the original.

Is tungsten carbide coating suitable for components exposed to chemical environments?

Yes, tungsten carbide coatings provide good resistance to mild chemical attack and oxidation in addition to exceptional wear and abrasion resistance. For highly aggressive chemical environments, the choice of binder (cobalt vs. nickel-based) significantly affects corrosion performance and should be selected based on the specific chemicals and temperatures involved.

What is the typical surface finish achievable after tungsten carbide coating?

Post-coating, tungsten carbide surfaces can be ground and finished to achieve roughness values as low as Ra 0.1 µm, making them suitable for precision applications such as pump plungers, printing rolls, and measuring equipment. The final surface finish depends on the post-coating grinding process and the component's functional requirements.

Tungsten Carbide Coating Services in India

Engineered Protection, Every Time. No Jargon, Just Results That Matter.

Why Tungsten Carbide Coating?

High Hardness (up to 72 HRC)

Superior Wear & Erosion Resistance

Corrosion Resistance

Thermal Stability (up to 500°C for WC-CoCr grades)

Coating Materials We Use

Technical Highlights

Industries We Serve

The Tungsten Carbide Coating Process

Surface Preparation

Material Selection

Advanced Spraying (HVOF/Plasma Spray)

Quality Assurance

Why Work With Plasma Spray Processors?

4+ Decades Serving Indian Industry

Certified Technicians & ISO Processes

Pickup & Delivery Logistics

Proven Results

Frequently Asked Questions

Do Not Let Wear Win.

Areas We Serve

Get in touch with our experts today for a customized quote and consultation.

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