Mechanical Tubing is cold drawn (cold finished) and possesses exceptional strength-to-weight ratios, excellent surface quality, and dimensional accuracy in a wide range of mechanical properties. We produce all carbon grades from 1012 through 1080 in rounds and in shapes.  You may order as Outside Diameter x Wall thickness, Inside Diameter x Wall thickness, Nominal Wall or Minimum Wall.  We will custom make your tubing to meet your requirement. Special tolerances are available. 4130 Aircraft Tubing is cold drawn (cold finished), stress relieved annealed and heat treated to meet the needs of the aircraft and aerospace industry. MSTube 4130 is certified to the following general specifications: A519, MIL-T-6736 B (AMS-T-6736A), AMS-6371 and AMS-6360 with decarburization levels to AMS-6371. WE MEET DFARS and DOMESTIC-ONLY REQUIREMENTS. Specification: A519 Custom Specifications Size Range: .750" thru 5" OD (19.05 mm thru 127mm OD) .083" thru .875" WALL (2.10 mm thru 22.23 mm WALL)   © Michigan Seamless Tube 2006