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[Spridgets] Steel grades

To: spridgets@autox.team.net
Subject: [Spridgets] Steel grades
From: dwoerpel@wi.net
Date: Mon, 12 Nov 2012 19:59:47 -0600 (CST)
Delivered-to: mharc@autox.team.net
Delivered-to: spridgets@autox.team.net
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OK, metallurgists.  I'm looking at a set of jack stands and the pins
are made of #20 steel.  What does that mean?  I've determined
it's probably a China grading but haven't been able to find anything (that
I could understand).  How does the numbering system show strength,
etc.?

Just curious,
Dave W.
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