304 304l Socket Weld Pipe Fittings Stainless Steel Elbow ASTM A403

304 304L Stainless Steel Socket Weld Elbow Fittings

Technical requirements for socket elbow

1. Since most of the pipe fittings are used for welding, in order to improve the welding quality, the ends are beveled, the angle left, and the side of the belt. This requirement is also strict. The side is thick, the angle and the deviation range are all There are regulations. The surface quality and mechanical properties are basically the same as the pipe. For the convenience of welding, the steel grade of the pipe fitting and the pipe being connected is the same.
2. That is, all pipe fittings must be surface treated, and the iron oxide scale on the inner and outer surfaces is sprayed off by shot blasting, and then coated with anticorrosive paint. This is for export needs. Moreover, it is also for the convenience of transportation in the country to prevent corrosion and oxidation. This work must be done.
3. It is the requirements for packaging. For small pipe fittings, such as export, it is necessary to make wooden boxes, about 1 cubic meter, and the number of elbows in this box cannot exceed one ton. The standard allows sets, that is, large sets and small sets. But the total weight generally cannot exceed 1 ton. For large items y, single packaging is required, such as 24" is single packaging. The other is the packaging mark, which must indicate the size, steel number, batch number, manufacturer's trademark, etc.

ASTM A403 Standard Chemical Composition :