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Metals/Experts

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Peter Coombs

Available
Anything at all to do with the working of precious metals. This includes most aspects of the jewellery and metalsmithing industry.

Gary J. Reed

U.S.
Available
Any question about welding cast iron by any means and all alternatives to welding including metal stitching which is the way it is done by professionals who have common knowledge of the realities of repairing cracks and other damage. I can provide anyone with the best method to choose for any situation. I can also answer any questions about repairing damaged threaded bolt holes for any application using thread repair inserts.

Richard VanLieshout

U.S.
Available
Answer questions about chemical and metals manufacturing especially related to alkali metals such as sodium potassium lithium and alloys of these such ad NaK (sodium potassium alloy)

Rich Fercy

U.S.
Available
Specializing in industrial, construction and wear resistant steels. Also extensive background in stainless and nickel based steels. Welding problems except code issues.

Recent Answers

2012-03-08 the strength of thin steel sheets:

Hello Eddie    Thank you for the drawing - it helped with the answer, or perhaps more questions.    There are several type of stainless steels, although the most common will contain 18% Chromium and 8%

2012-01-30 Behaviour of metal during chemical etching:

Hello again.  Probably not perfectly round, as etching at length usually results in a loss of control...it will round up a bit, but at some stage it will probably undercut....  Best I can suggest is try

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