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Monday, April 14, 2014
Solders for Potable Water

It has been more than 20 years since the passage of the Federal Clean Drinking Water Act in the U.S., which limited the amount of lead (Pb) in solder used for potable water systems. Let’s look at the non-Pb-bearing alloys and the implications for proper joining, plus recommended fluxes for soldering in this application.

Wednesday, March 26, 2014
Liquidus vs. Solidus

When choosing a filler metal for brazing applications, it is important to consider melting behavior—specifically liquidus temperature. Today, we will look at the differentiation of liquidus vs. solidus, considerations for the brazing operation, and examples of appropriate filler metals for specific situations.

Thursday, March 06, 2014
Liquid Metal Embrittlement

Liquid Metal Embrittlement (LME) is a phenomenon where certain ductile metals experience a failure in a brittle mode when exposed to a liquid metal. Do you know the conditions under which LME can occur, and how to avoid it? Let’s explore the topic in today’s posting.

Friday, February 21, 2014
Brazing of Beryllium-Copper Alloys

Beryllium copper, when fully heat treated and cold worked, is the hardest and strongest of copper alloys. Beryllium-copper alloys are available in two classes: high strength and high conductivity. Let’s discuss the applications and procedures for brazing with these alloys.

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