1.Welded Stainless Steel Pipes 2.Size: 18-426*2-10 ... ,304L, 316, 316L, 310 4.Standard: ASTM A269 1. Welded Stainless Steel Pipes 2. Size: 18-426*2-10*Length3 ... , Shipbuilding, Military Use, Chemical, Industry Instruments , Automobile Exhaust Tube, Fencing, Railing, Safe Door/ Window, Gate Fitting, Inside Staircase, Balcony, ... 30%≥35%≥35%Hardness (HV)<253<253<200<200 Welded Stainless Steel Pipes