Originally Posted By: ellenbr
I think the Izhevsky "Four Ring" steel had a failure limit at 50 kg/mm and an elastic limit of 80 kg/mm.

Vice versa, Raimey. 50A elastic limit 55 kg/sq.mm and failure limit 80 kg/sq.mm.
Elastic limit means force, when steel begins to stretch out. Failure limit, when steel breaks.


Geno.