Ideas & Expert Advice

Tech Tips

Achieving the Correct Electrical Conductivity When Welding Copper

welding image

When welding copper in a high electrical conductivity situation, it’s best to know the physical and chemical properties so you know what’s needed in a welding alloy.



Nitrogen Purge and Brazing

Harris nitrogen regulator (part no. 3002572)

Most HVAC installation instructions require flowing nitrogen through the copper tube during brazing. This is an important step in producing a quality HVAC system.



Actual and Typical Certifications

Harris brazing rod

Harris provides online actual and typical certifications for many of our consumable products. This brief overview looks at the difference between the two types of certifications.



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Articles

Oxyfuel Brazing Primer

Oxyfuel brazing is a simple yet effective method for joining metal that produces sound, leakproof connections. Harris technical director Robert Henson and manager of special products David Gailey discuss the common brazing alloys, base metal and fitting preparation requirements, and potential pitfalls you could encounter in this popular process to ensure optimal results.



Silver's Role in Phos-Copper Brazing Filler Metals

Probably the most widely used brazing filler metal is an alloy of copper and phosphorus, often with silver added as a third element. The role of silver in these alloys is often misunderstood.



Harris sets itself apart

During an Electra Mining visit to South Africa, David Nangle, the president and CEO of The Harris Products Group, presented the success of the company's new multiple channel distribution strategy, African Fusion reports.



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Videos

Steel Cutting with Alternate Fuel

Cutting with alternate fuel image

Alternate fuels are a great alternative for cutting applications - they save you money, they cut faster, and they're safer. This video shows cutting a 2 inch steel plate using natural gas.



eco SMART Boric Acid Free Brazing Flux

ecoSMART flux image

Introducing the world's first boric acid-free smart flux. eco SMART® is a unique, patent-pending flux that is designed with color change technology that lets you know when it is time to braze. Its boric acid free environmentally friendly formula starts out as a green color that changes to clear when the flux becomes active.



How to Install a Cylinder Regulator

How to install a Regulator image

This video goes through the steps necessary to safely install a regulator onto a gas cylinder.



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