Infill plane - HR vs cold rolled
I'm wondering if there is a problem with the terminology used between the US and Aus/UK regarding mild steels. In reading Mick's section on steels in his Infill book he states:
**** Don't use cold rolled steel, it is like trying to use the most case hardened piece of reaction wood. If available your best choice in mild steel is 1018 guage plate which is precision ground thus reducing the effort required to flatten the sides and sole of the finished plane. ****
The terms 'guage plate' and also 'bright mild steel' incidently, aren't used in the USA. It's my understanding that 1018 may be cold rolled or hot rolled. In the hot rolled state it's typically called A35 and is dark in colour and tends to have rounded edges and in general is not "precision". I believe "guage plate" is the same thing as 1018 cold rolled and as such recommending *against* cold rolled and *for* guage plate is contradictory. Is there anyone out there with *real* knowledge on the subject who could clear up my confusion?
Ken