Q. Which material is most suitable for mechanical shafts?

Answer

Plain carbon steel is adequate for use in ninety percent of all applications. The necessary characteristics include a high level of durability as well as economic efficiency. The carbon steel designated as En 8 or ASTM 1040 is the one that is most often used. This kind of steel has extremely low levels of both phosphorus and sulphur, and it only has 0.4% carbon in it. This allows one to harden it, which ultimately results in increased strength. These are offered as drawn bars or ground bars as ready-to-use products that may be purchased off the shelf or at the counter.