AS LARGE DIAMETER STAINLESS STEEL PIPES/TUBES MANUFACTUER/SUPPLIER  WE CAN SUPPLY MANY GRADES OF THEM,INCULDING METERIAL 304/304L 321 316/316L 310S 317L 316TI 347H,  DUPLEX STAINLESS STEEL S31803/2205 S32750/2507 ,UNS N08904/1.4539/904L LARGE DIAMTER STAINLESS PIPES/TUBES, FIRSTLY, LET ME INTRODUCE 304 LARGE DIAMETER STAINLESS STEEL PIPES/TUBES FOR YOUR REFERENCE.

 edit lock 304 large diameter stainless steel pipe/tube in the air or chemical corrosion resistant to corrosion medium of a kind of high alloy steel, the surface of 304 stainless steel pipe/tube is a beautiful and corrosion resistant performance is good, need not after surface treatment, such as color of plating and the surface of the stainless steel inherent performance, used in a variety of steel one. 

    304 large diameter stainless steel pipe/tube containing nickel chrome 9% 19%, stainless steel, heat-resistant steel Often referred to as stainless steel. On behalf of the performance of 13 chrome steel, 18-8 chrome-nickel steel high alloy steel. From the perspective of metallography analysis, because the stainless steel containing chromium and make the surface form very thin chromium film, the film is isolated from intrusion in the steel corrosion of oxygen. In order to keep inherent corrosion resistance of stainless steel, steel must contain more than 12% of chromium. 304 is a kind of common stainless steel, it is widely used to make for a good comprehensive performance, corrosion resistance and formability of equipment and parts. 304 stainless steel is according to the United States ASTM standards to produce a brand of stainless steel. 304 is equivalent to our country 0 cr19ni9 (0 cr18ni9) stainless steel. 304 19% chromium and nickel 19%. 304 is the most widely used stainless steel, heat-resistant steel. Used in food production equipment, wast, general chemical equipment, nuclear power, etc. 304 stainless steel chemical composition specification C, Si, Mn, P S Cr Ni (Ni) Mo SUS304 acuities were 0.08, 1.00, 2.00, 0.05 or less or less or less acuities were 0.03, 0.03 to 18.00 ~ 10.50-8.25