17-7 CH 900 permeability
17-7 CH 900 permeability
(OP)
I'm designing a helical spring for a solenoid application that has very restricted space requirements. I have always used 302 stainless for these applications as even with extreme cold work the relative permeability is generally under 5. Because of the limited space for this spring, the load & stress requirements, my spring supplier is suggesting I use 17-7 in condition CH 900. The stress & load numbers certainly work out better with 17-7. I know found permeability for condition RH 950 to be 135 max, decreasing to ~50 at higher flux density. Will CH 900 be similar?





RE: 17-7 CH 900 permeability
RE: 17-7 CH 900 permeability
RE: 17-7 CH 900 permeability
I my case the inlet pressure was 1500-2000 psi and the solenoid force was 80 Newtons with a 0.5 mm stroke.