Select-Arc Inc. (www.select-arc.com) has introduced a metal-cored, stainless steel electrode designed for difficultto-weld metals, especially in automotive exhaust applications. The company says its SelectAlloy 307C electrode is designed for difficult-to-weld and dissimilar steels, including austenitic stainless to ferritic stainless or carbon steel, ferritic to ferritic stainless and other dissimilar metals found in automotive exhaust systems. The weld deposit is nearly all austenitic, and is resistant to hot cracking because of the presence of as much as 8 percent manganese.