1074 Spring Steels are tempered spring steels that looks and acts much like blue tempered steels.The difference being that scaleless tempered is of medium high carbon, has been tempered and has better forming qualities.

 

 

Formed Springs Requiring Heat Treatment AISI - 1074 - SAE
Normal Temp	1550° - 1650° F.
Anneal Temp	1400° - 1500° F.
Hard Temp	1475° - 1550° F.
Oil Quench	Rc 64

Rockwell Drawing Temp. * AISI - 1074 - SAE
400° F	600° F	700° F	800° F	900° F	1000° F	1100° F	1200° F
Rc 59	Rc 53	Rc 47	Rc 44	Rc 40	Rc 36	Rc 32	Rc 26

Tensile PSI Drawing Temp. * AISI - 1074 - SAE
400° F	600° F	700° F	800° F	900° F	1000° F	1100° F	1200° F
305,000	255,000	230,000	205,000	182,000	162,000	140,000	122,000

* The proper drawing range and time cycles should be determined by experiment calculated to develop those properties best suited for intended end usage.

Special Note - These temperature ranges and their resultant values are given as information only and not to be followed without experimentation. However, as these steels are held to close uniformity tolerances little difficulty should be experienced.