Why does Small Tube Products take exception to the ASTM B75 yield requirement for light annealed (050) and soft annealed (060) tempers?
Although table 1 in ASTM B75, superscript F allows for a light straightening operation, it is our opinion that superscript F is not specific in the desired procedure of straightening. If the tubing is processed with an annealing operation as the last process, the material will not meet 9,000 psi minimum. If the tubing is processed with an annealing operation followed by a rotary (or cross-roll) straightening, then the material will meet 9,000 psi minimum. Further explanation for your particular product can be provided by STP’s Quality Department.
