4130 & 4140

[sheepherder]

Originally Posted by G.T.

I don't think steels like we have now were readily available in 1900 thru WW1...and I'll stick to my guns on the 1018 until some one can prove different...

Gerry, the Germans built battleships & submarines from 1900 until WW I !!! Of course they had premium steel!!! Krupp steel!!!

Here's a test...Go down to the local hardware store and get some grade 5 bolts (they have three hash marks on the head)...Heat them up and try to 'straw' them...Next, heat them to cherry red and quench them in oil...See if you can still cut them with a hacksaw...

Coat hangers are 1010/1020 steel...