... , 304,304L, 316, 316L, 310 4.Standard: ASTM A269 1. Seamless Stainless Steel Pipes2. Size: 18-426*2-10*Length3. Grade: 201, 304 ... , Architectural Decoration, Shipbuilding, Military Use, Chemical, Industry Instruments , Automobile Exhaust Tube, Fencing, Railing, Safe Door/ Window, Gate Fitting, Inside Staircase, Balcony ... ≥30%≥30%≥35%≥35%Hardness (HV)<253<253<200<200 Seamless Stainless Steel Pipes