On Sat, 11 Mar 2006 12:32:54 -0700, Trevor Jones
wrote:


Gauge blocks ARE available in different materials these days. Ceramic
and carbide are out there as well as plain old steel. The new materials
are a bit less heat affected and not subject to corrosion, but are more
expensive, too.

Cheers
Trevor Jones

Of course, the crazy thing is that steel may often be the best choice...
because the most common materials used are steels, gauge blocks that have
similar coefficients of thermal expansion (is. steel) reduce the need to take
measurements at a specific temperature.


Mark Rand
RTFM