Hard Face Welding

SURFALLOY’s hard face welding uses a high-energy electric arc and constriction of inert gases to produce an ionized plasma column. Powdered metal is added to the plasma column to create a liquid puddle that metallurgically bonds to the base material. The alloy coating used in our welding process is fusion-bonded and not chemically or mechanically bonded. Discover more about our expertise in welding by viewing our previous projects.

Powder arc welding uses a high-energy electric arc and constriction of inert gases to produce an ionized plasma column. Afterward, powdered metal is added to the plasma column to create a liquid puddle that metallurgically bonds to the base material. Keep in mind that alloy coating is fusion-bonded, not chemically or mechanically bonded.

• Makes single-pass coating practical because the dilution of the coating by base materials is less than 10%.
• Results in easier and quicker finish machining. 
• Offers a wide coating range, which can be deposited from .060” to .500”.
• Provides an excellent method of applying high-quality, low-dilution coatings for a wide variety of industrial applications.

• High density.
• No porosity.
• No inclusions.
• True metallurgical bond with the base material.
• Reduced heat input prevents undesirable changes to the base material.
• Low amperage and small heat-affected zone mean distortion is minimized, and less thermal stress is induced into the base material.

• Forging Tools
• Tool and Die Resurfacing
• Glass Mold Resurfacing
• Wear Plate Overlays
• Valve Rebuilding
• Mining Equipment Resurfacing
• Mixing Blades
• Hammermills
• Fan Blades
• Scraper Blades
• Knives

• Iron-Based Alloys
• Nickel-Based Alloys
• Cobalt-Based Alloys
• Tungsten Carbide

We offer an extensive line of powders to satisfy a wide range of coating requirements, such as resistance to galling, impact, and chemical and heat corrosion. Our company also designs customized alloys to meet more specific coating needs. Contact us to get started with our coating and welding services.

Our hard face welding employs a high‑energy electric arc with inert gas constriction to form an ionized plasma column. Powdered metal is fed into that plasma to create a liquid puddle that metallurgically bonds to the base material. The alloy coating is fusion‑bonded—not chemically or mechanically attached—delivering long‑lasting protection.

This precision process is a core offering among our welding solutions in Troy, MI and complements our surface treatment services.

 

PTA (powder arc) creates the same ionized plasma column and deposits powdered metal for a true metallurgical bond. Because the coating is fusion‑bonded, PTA provides low dilution and high coating integrity—making it a go‑to technique in our surface treatment services and welding solutions in Troy, MI.

 

• Single‑pass coatings with <10% dilution
• Easier, faster finish machining
• Deposits from .060″ to .500″
• High‑quality, low‑dilution overlays for many industries

 

We use iron-based, nickel-based, and cobalt‑based alloys and tungsten carbide for forging tools, die and mold resurfacing, valve rebuilding, mining equipment overlays, blades, and wear plates. We stock extensive powders and design custom alloys to meet specific needs—part of our comprehensive surface treatment services.

 

Contact SURFALLOY to discuss specs and coating goals; our team will recommend the right PTA hard face welding approach within our welding solutions in Troy, MI.