Technical requirements for stainless steel elbows

1. Since most of the pipe fittings are used for welding, in order to improve the welding quality, the ends are turned into grooves, leaving a certain angle, with a certain side, this requirement is also strict, how thick the side, the angle and the deviation The scope is specified. Surface quality and mechanical properties are basically the same as tubes. For the convenience of welding, the steel grades of the pipe fittings and the connected pipes are the same.

2. All the pipe fittings have to undergo surface treatment, the iron oxide skin on the inner and outer surfaces is sprayed off by shot blasting, and then coated with anti-corrosion paint. This is for export needs. In addition, in China, it is also convenient for transportation to prevent rust and oxidation, all of which must be done in this regard.

3. It is the packaging requirements. For small pipe fittings, such as export, it is necessary to make a wooden box, about 1 cubic meter, which stipulates that the number of stainless steel elbows in this box should not exceed one ton. The standard allows sets, that is, large sets of small , But the total weight should generally not exceed 1 ton. For large items y, it must be packaged individually, like 24 ″, it must be packaged individually. The other is the packaging mark. The mark is to indicate the size, steel number, batch number, manufacturer's trademark, etc.