Instrument tubes for petrochemical industry: 304/304L, 316L, ASTM A269/A249, commonly used outer diameter sizes include 1/4 ". 3/8", 1/2: ", 7/16", 3/4 ", 1" ", thickness 0.035", 0.049 ", 0065", length 10 ', 20', coil length 150 ', 300', 500 ', 1000', 2000 ', 5000' Some coils can be packaged in rolls.