Minerals and Metals in Ancient India v1.c27.s2.t2.37

v1.c27.s2.t2.37

Wranglén (1970: 767) concluded by saying that the rate of rusting of one and the same steel varies as 1 to 100, or more in different climates, different unalloyed or low-alloyed steels, exposed in the same location, show much smaller variations, perhaps as 1 to 5 or as 1 to 10 at the most. We are not sure whether the ratio in the second case (1:5 to 1:10) observed for short periods may or may not increase over a much longer period for corrosion.