Excerpt from The Scientific Steel Worker: A Practical Manual for Steel Workers and Blacksmiths All steel workers should be able to judge steel as to quality and the amount of carbon it contains. It is just as essential that a steel worker should be a judge of steel as it is that a wood worker should be a judge of wood. One grade of steel is not fit for all purposes any more than one kind of wood is suitable for all pur poses. The more carbon steel contains the harder it is. Ordinary tool steel contains from fifty to one hundred and fifty points of carbon. One point is equal to one hundredth of one per cent; one hundred points is equal to one per cent. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.