For quenching and tempering steel. #900 is especially suited for oil hardening followed by relatively high draw, since no washing is required between quench and draw. #900 is less hygroscopic than #800 and can be used at higher temperatures. Formulated per MIL-S-10699-B, Class 5 Information provided by Heatbath Corporation - Park Metallurgical. Heatbath/Park has been acquired by DuBois Chemicals. |