Sep 22, 2010
1. When the product is corrosive to the piping system. Products containing chlorides and other salts can attack the tubing and fittings used to transport the products throughout a plant. Systems fabricated from 304 or 316 stainless steel can become leaky after prolonged contact with salty food and beverages, e.g. sports drinks and soy sauces. If the product is...
Aug 13, 2010
Question: Which welding filler wire should we use when TIG welding AL-6XN tubing and fittings? Answer: Use C-22 weld insert rings. Do not attempt to apply filler wire manually. What’s the difference between filler wire and insert rings? Why does it matter? Literature from Allegheny Ludlum recommends using filler wire. As stated on...
Jul 16, 2010
True or False: I don’t need to buy weld insert rings with AL-6XN tubing and fittings. I can make field welds that look fine without using weld rings. I hope you answered “False.” Although AL-6XN can be field welded without using filler material, it’s risky business to put those welds into corrosive service.
