15-5ph: H900 or H925

15-5ph: H900 or H925
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Posted by: wolf1_o ^®

03/02/2006, 02:27:37

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Hi.
I'm debating wether to use the H900 cond. or H925 cond. for an high RPM rotating spindle.
The spinlde utilizes very accurate small bearings and oil seal as well, so it must be hardened to an high RC. (some recomend even 55 RC..)
I think about using the H900 Cond.:higher hardness (40-48), better uts and ys...(maybe the fatigue will be a bit lower, but not for sure...)
Maybe someone in here had some Exp. with this metal and the H900/925 cond and can recommend?
Thanks!

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