Our 17-7 PH precipitation-hardened Spring Temper Wire (ASTM 313 Chemistry Only) is furnished cold drawn in Condition C (AMS 5678), cleaned and straightened. Its elastic properties permit reforming into a specific shape and it can be formed into springs or into required patterns as in the case of diagnostic catheters. This is accomplished by taking the formed cold drawn wire (Condition C) and aging it at 900F (482C) for one hour (to Condition CH900). 17-7 Spring Wire provides good corrosion resistance, excellent fatigue properties and minimum distortion during heat treatment. In addition, the material retains its load bearing properties with little or no relaxation up to 850 degrees F. Furnished in "gun barrel straight lengths. Compatible with tube gauges 25-26.