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The cost of welding pipe per diameter inch can vary depending on several factors, including the type of metal being welded, the welding process used, and the complexity of the project. Generally, welding prices are calculated based on the length of welds required, material costs, labor costs, and overhead expenses. It is recommended to obtain quotes from multiple welding professionals or companies to compare prices and ensure you are getting a fair estimate for your specific project.
H-O-H is the symbol formula of WATER. H2O
In electrical wiring awg ( American wire gauge) goes to 4/0 as the largest size. then it goes to 250 mcn. MCN which stands for 1,000 Circular Mils. this system uses the cross sectional area of the wire as a measurement. typical mcm wire sizes start at 250 and go to 300,350,400,500,600, etc. 250 mcm is usually good for a 200 amp service in aluminum wire in Canada per code. American standards are not as high or as good as Canadian ones. 250 MCM Welding cable is the next size larger than the standard 4/0 cables used on most standard mag particle inspection machines. Increasing the cable size will reduce the heating effect on the cables and increase the available current. welding cables is one of the more common uses for bigger sized wires. 250 MCM Cable has a cross-sectional area of .199 square inches
FP on a weld symbol stands for "Fillet weld all around." This means that a fillet weld is required to be made on all sides of the joint where the symbol is placed. The weld size, length, and other specifications should be indicated next to or below the FP symbol on the welding symbol to provide further guidance to the welder. It is important to follow the welding symbol precisely to ensure the weld meets the required specifications and standards.
Additive processes add stuff to the original piece. Think welding or adhesive bonding. Subtractive would be maybe a machining process that takes material away. Trailing zeros mean greater tolerance is required and that comes at a higher price.