Hard Face Welding

Discover Innovative Hard Face Welding Services

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.

Plasma Transferred Arc (PTA) Welding

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.

Benefits of Hard Face Welding:

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.

Advantages of Powder Arc Welding:

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.

Applications:

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

Common Alloys:

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

We’d Love to Hear from You

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.