Mar 23, 2022 · Medium-carbon steel .5% C) is used for gears, shafts, connecting rods, seamless tubing, etc. and is sometimes called machinery steel. High-carbon steel (> 0.5% C) is used for springs, knives and handtools, taps and milling cutters, wire-drawing dies, etc. and is sometimes called tool or spring steel. A simple AISI 4-digit numbering system ...
Get Price