Huh...didn't know rebar came in different grades, nor that it's *meant* to
have carbon and hardness in it... All I knew was pretty much from a past
thread here including similarly disparaging comments about A36. ;-)

Tim

--
"I have misplaced my pants." - Homer Simpson | Electronics,
- - - - - - - - - - - - - - - - - - - - - - --+ Metalcasting
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"Tim Williams" wrote in message
...
In case anyone was wondering, rebar is indeed any composition. Tonight I
was forging on some and out of curiosity, cheezily heat treated one end
(brought it to orange heat, quenched, reheated for a little longer than it
took the water to boil off to sorta temper). Took a strike with the
hammer
and sure enough it broke. Spark test reveals something like 1040 but it
must have some other alloying elements since it bears some resemblence to
higher alloy steel (wrench stock for instance).

So yes, it's real crappy material. On the other hand. It can be
hardened.
What a scary thought, toolbits forged from rebar. Hmmmm. But
still........

Tim

--
"I have misplaced my pants." - Homer Simpson | Electronics,
- - - - - - - - - - - - - - - - - - - - - - --+ Metalcasting
and Games: http://webpages.charter.net/dawill/tmoranwms