When selecting the ideal pipe fittings for your specific end-use application, it is essential to consider their strength. Various factors can impact this property, including yield strength, ultimate strength, shear strength and fatigue strength. The alloy 6063 is an extremely popular choice for extrusions and is commonly known as "architectural aluminium." It makes a versatile extrusion material choice by combining magnesium for increased strength while decreasing melting temperature and good corrosion resistance and weldability properties.