Table 4.1. Bending Guide for Copper Tube

Nominal Standard Size, in	Tube Type	Temper	Minimum Bend, Radius*, in
1⁄4	K,L	Annealed	3⁄4
3⁄8	K,L	Annealed	11⁄2
	K,L,M	Drawn	13⁄4
1⁄2	K,L	Annealed	21⁄4
	K,L,M	Drawn	21⁄2
3⁄4	K,L	Annealed	3
	K,L	Drawn	3
1	K,L	Annealed	4
11⁄4	K,L	Annealed	9

* The radii stated are the minimums for mechanical bending equipment only.