On Thu, 13 May 2004 15:08:06 -0700, "Rich S."
wrote:

wrote in message
.. .

Brazing high strength alloy steel components of automotive bodies is
STRICTLY FORBIDDEN.

A. By whom?

A - by the auto manufacturers, the autobody trade, and anyone alse
involved in the inspection/qualification of auto body repairs in
Canada and the USA.

B. Where?

B ANY structural body part. - which is generally where HSA steel is used

C. For what use?

C - for onhighway use.

A. They are not my King, nor my God and I care not what they may FORBID.

B. Weren't we talking about the use of this steel in experimental airplanes?
(Actually, by "where" I meant "where in the world is such brazing "STRICTLY
FORBIDDEN" - which you answered in "A".)

C. I assume you mean in production automobiles. Unless you can tell me what
law pertains to the brazing of "high strength alloy steel components of
automotive bodies", I'm afraid I can lend little credence to your statement.
I really don't give a rat's ass what the "auto manufacturers, the autobody
trade, and anyone alse involved in the inspection/qualification of auto body
repairs in Canada and the USA." have proclaimed.


You may not give a rat's ass, but the high strength alloy steel sure
does. It is a HEAT TREATED steel, and it looses a very large
percentage of it's strength when heated to red hot - which is a
definite requirement for brazing.

Come to think of it, I have never heard of anyone involved in the
inspection/qualification of auto body repairs. Is there such a governmental
body in Canada?


Keep the useless government out of it.
Trade groups like the SCRS, ASTM, APMA, ASE.AAC, ABPA, ASBE, and ACA,
along with the NHTSA all have something to say about it.

Specifically, look at:
http://www.autosteel.org/pdfs/ahss_r...ase2_study.pdf

This is LOW ALLOY steel - as compared to 4130,
I would not want to see it used, particularly by amatures, in
construction of aircraft with welding, or worse yet, brazing, involved
in the construction.
Rich S.