ASTM A403 WP304 pipe fittings mean the pipe fittings which material is Wrought Austenitic Stainless grade A403 WP304,they are used for the pressure piping systems of moderate and high temperature
services.ASTM A403 is the standard of pipe fittings material,it indicates the materials properties of different kinds of stainless steel,WP304 is one of the steel grade in this standard.304 a kind of common
stainless steel,it is widely used to make for the manufacture of equipment and parts which needs good comprehensive performance,corrosion resistance and formability
The regular products of A403 WP304 pipe fittings are elbows,tees,reducers,caps,cross.There are seamless and ERW A403 WP304 pipe fittings,the seamless A403 WP304 pipe fittings means the fittings are
made from the seamless steel pipes,ERW means the fittings are made from ERW steel pipes.Welded A403 WP304 pipe fittings mean the large sizes fittings which are pieces welded from steel plates.