Bare Aluminum Welding Rod matches most types of sheet and cast aluminum. Designed for use with torch flame or inert gas welding process. When used with torch flames, recommend use Forney 37025 Alum-a-flux. Gray color coded. Forney Industries is one of America"s longest operating family-owned metal working product companies. Founded in 1932, Forney offers more than 5,000 products for the hardware, automotive, farm and ranch and do-it-yourself markets. For more information. If you"ve got metal working questions, we"ve got answers. We"re committed to your success regardless of location size or needs . 3/32-Inch (2.38mm) x 36-Inches (91.44mm) rods. 1 3/4-Pound (.79 Kg) tube of rod. Tensile Strength is 27,000 PSI. Melting Point: 1,155⁰ F (624⁰ C). Claims for warranty must be made within 90 days of the date of purchase. Proof of purchase required.