Alloy 5556 was first utilized in 1956. It develops the highest as-welded strengths in fillet welds, nearly double that of 4043.

The 5XXX series of alloys offer an excellent combination of corrosion resistance, strength, toughness, workability, and weldability. As a result, they are used in a wide variety of applications. A characteristic of this series of alloys, however, is their susceptibility to stress corrosion cracking when the weld pool chemistry is greater than 3% Mg and there is exposure to prolonged temperatures in excess of 150° F. Special alloys and tempers are often required to overcome this problem.

AlcoTec products ALMIGWELD® welding wire in over twenty different alloys and a variety of package sizes. Specialty items, as well as the industry standards are available. AlcoTec proudly advertises "If you can't get it from AlcoTec, you probably can't get it." AlcoTec offers the highest quality products available, product diversity, product availability, competitive pricing and technical assistance.

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