Mechanical These fittings are designed for use by technically trained personnel only. Specialized knowledge and training in the use of these valves and fittings is necessary because misapplication of this product could result in injury or death. Material - Forgings Component parts of Brass Alloy 377 are forged under pressure of approximately 25,000 pounds per square inch. This process of forging produces a part resistant to mechanical shock and vibration, with high impact strength. Material - Extrusions Component parts of Brass Alloy 360 or 345 are extruded through dies under pressure of approximately 80,000 pounds per square inch.
Extrusions are dense and nonporous.
The advantages of brass include its excellent electrical conductivity, ductility, thermoconductivity, corrosive resistance, joining, plating, polishing and finishing characteristics. Brass is non-sparking and is outstanding in machineability. Nominal pipe sizes do not agree with either the inside or outside diameter, or thread sizes. A dash number is always the numerator of an inch over 16th.