Ar3


Also found in: Acronyms.

Ar3

(metallurgy)
The temperature at which austenite begins to convert to ferrite upon cooling a steel.
References in periodicals archive ?
Caption: Norinco AR3 launcher can be fitted with 300 or 370 mm rockets that can reach targets at a range of 280 km.
Considered alone, the growth in business loans (|Mathematical Expression Omitted~) and in business inventories (|Mathematical Expression Omitted~) are first- and third-order autoregressive series, AR1 and AR3, respectively, which means that current values of each are highly related to their own past value one quarter earlier and three quarters earlier, respectively, but not to earlier changes.
AR3 Trust Mortgage Pass-Through Certificates, Series 2005 - AR3, class II-A-1 Certificate.
Reline America is proud to introduce the next step in lining technology--BLUE-TEK AR3 liner.