260 Brass Round Tube Material Brass Outside Diameter 21/32 in Inside Diameter 0.628 in Wall Thickness 0.014 in Overall Length 12 in Material Grade 260 Mechanical Finish Mill Standards ASTM B135 ASTM B587 Application Automotive HVAC Plumbing System of Measurement Inch Maximum Temperature 1 690 Degrees F Minimum Temperature 0 Degrees F Shape Round Tube