astm a269 tubing specifications  

GB/T24593  ASTM A249 welding thin stainless steel tube 300 series ，436 ，445，S31803, S32205 food grade decorative sanitary seamless steel pipe Produt Description Stainless steel pipe is a hollow strip of round steel, which is widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial pipelines and mechanical structural components. In addition, when the bending and torsional strength are the same, the weight is light, so it is also widely used in the manufacture of mechanical parts and engineering structures. Also used as furniture and kitchenware.