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Soften C26000 brass

I have some small pieces of grade 260 brass (maybe C26000) with H02 temper (1/2 hard) and want to soften to OS070. Can anyone tell me what temper temperature should I use to soften those parts?

Chien Chen
- Anniston, Alabama
February 9, 2010

From the chart in Metals Handbook, Volume 2, Tenth Edition, it looks like a hour at 600 °C would get you an average grain size of 70 microns. I'd be wary, though, and would probably start at 450 °C and see how that does, and increase the temperature incrementally. You might also want to try a small piece at 600, and see what happens.

Good luck!

Lee Gearhart
metallurgist - E. Aurora, New York
February 10, 2010

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