Is the steel sheet or strip steel billet used, because of its different uns s32750 sheet welding process is divided into furnace welded pipe, welded (erw) tube and automatic arc welding tube. Because of its welding form of different can be divided into straight seam welded pipe and spiral welded pipe. Because of its shape is divided into circular welded pipe and alien (square, flat, etc) welded pipe. Welded pipe because of its material and use different and divided into the following several varieties:
GB/T3091-1993 (low pressure fluid conveying with galvanized welded steel pipe). Mainly used for conveying water, gas and heating hot water or steam, air, oil and other general low pressure fluid tube and other purposes. It represents material level Q235A steel.
GB/T3092-1993 (low pressure fluid conveying with galvanized welded steel pipe). Mainly used for conveying water, gas and heating hot water or steam, air, oil and other general low pressure fluid tube and other purposes. It represents material for: Q235A steel.
GB/T14291-1992 (mine fluid conveying welded steel pipe). Mainly x56 line pipe used for mine pressure, drainage, wind shaft gas with straight seam welded steel pipe. It represents material Q235A, B grade steel. GB/T14980-1994 (low pressure fluid conveying with large diameter welded steel pipe). Mainly used for conveying water, sewage, gas, low pressure fluid such as air, steam heating and other USES. It represents material level Q235A steel.
GB/T12770-1991 (mechanical structure with stainless steel welded steel tube). Mainly used in machinery, automobile, bicycle, furniture, hotel and restaurant decoration and other mechanical parts and components. Its representative 0 cr13 material, 1 cr17, 00 cr18ni9 cr19ni11, 1, 0 cr18ni11nb, etc.
GB/T12771-1991 (fluid conveying with stainless steel welded steel tube). Mainly used for low pressure corrosive medium. On behalf of the material to 0 cr19ni9 cr13, 0, 00 cr19ni11, 00 cr18ni11nb cr17, 0, 0017 cr17ni14mo2, etc.
No matter for what kind of product, production process is always the most important, a good production technology can make the product become more outstanding and perfect, 304 stainless steel plate in the same way, and above the production and processing of the 304 series stainless steel plate and this very much and stringent requirements.
First is a sign of it on their own technology, for its product, if 321 stainless steel sheet it doesn't have a good production process, it will be the first to make it on its own appearance, even if the user is using it. It USES its performance, but it usually in their appearance is very important, so that when users are using natural is an important performance.
For stainless steel tube production process, often because of the strength of the manufacturer is different, so it's own production process there is a big drop, so in general, as long as they are big manufacturer, they often have their own product. It will make it to achieve a very high production process, of course, it is in their own material performance, if it is not in their own production and not high material, its natural products can not allow the user to achieve very good satisfaction.