This website describes stainless steel seamless pipe (tube) in China.Wenzhou Nanlong Import&Export Trading CO.,LTD.(China).About the procedure for manfacture,it is as follow:Round Bar-Inspection-Cut-Centering-Strip-Heating-Pickling-Inspection of size-Perforation-Inspection of surface-Lubricating-Cold Drawing(Cold-Rolling)-Pickling/Passivating-Cut-Straightening-Annealing-Degreasing-Last Inspection-Marking-Packing-Delivery.We guarantee the quality of product.After finishing the heating procedure,high accuracy, excellent brightness, no oxidization is showing on the outer and inner.stainless steel, titanium,Hastelloy(C-276,B-2,C-22,C-2000,G-30),Mone(400,500)l,Inconel(800,600)and zirconium. However,we chose the materials:austenitic stainless steel (AISI 304 / S30300,304L /S30403,310S/ S31008,316 / S3160,316L / S31603,317 / S31700,317L / S31703,321 / S32100,347 / S34700;SUS304,304L,310S,316,316L,317,317L,321,347,904L(UB6);duplex stainless steel:(UNS) 2507,2520,2520,2205,S31803;Ferritic Stainless Steel(AISI 410S,409,430,430Ti,439,434,436,444),Martensite stainless steel(410,420...).The industrial standards of the stainless steel pipe(welded and seamless one) ,there are :GB/T12771-2000,GB/T12770-2002,HB20537,ASTM A213/A213-99a,ASTM312/A312M-00b,ASTM A269-00,ASTM A511-9,JISG3463,JIS3446,JIS3448,JIS3459,DIN2462,DIN17458,GB/T14975-2002,GB/T14976-2002,GB13296-94,GB9948-88,GB5310-95,GB2270-80,ASTMA213/A213-99a,ASTM312/A321M-00b,ASTMA269-00,ASTMA511-96,JISG3463,JIS3446,JIS3448,JIS3459,DIN2462,DIN17458(stainless steel pipe) |
