ASTM B600-11 Edition, “Standard Guide for Descaling and Cleaning Titanium and Titanium Alloy Surfaces,” has just been released. This new 2011 edition replaces the ASTM B600-09 which is now obsolete.
The guide covers a cleaning and descaling procedure useful to producers, users, and fabricators of titanium and titanium alloys for the removal of ordinary shop soils, oxides, and scales resulting from heat treatment operations and foreign substances present as surface contaminants.
ASTM B600 is not intended to be mandatory for removal of any of the indicated soils but rather serve as a guide when titanium and titanium alloys are being processed in the wrought, cast, or fabricated form.
It is recommended that the materials shall be subjected to soil removal prior to heat treatment or application of acid treatment. Mechanical descaling methods such as sandblasting, shot blasting, and vapor blasting may be used to remove hot work scales and lubricants from titanium surfaces.
Recommended post treatment of shot or abrasive blasted titanium surfaces may include acid pickling to ensure complete removal of surface contaminants. For chemically milled materials, salt bath conditioning may be required to remove the oxygen-contaminated layer. Acid etching treatment may be required following mechanical abrading or chemical conditioning of materials to completely clean the surface.
This new ASTM guide and all ASTM standards are available from Document Center Inc. at our website, www.document-center.com. Or contact us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com). Our staff is available from 8 am to 5 pm, Monday through Friday, California time. We have an extensive collection of obsolete ASTM revisions as well.
