Depending upon the percentage of carbon, plain carbon steels are classified into the following category :
- Low carbon steel
- Medium carbon steel
- High carbon steel
Some of the important application of plain carbon steel is following below.
Applications of plain carbon steel :
- 7C4 used for components made by severe drawing operation such as automobile bodies and hoods.
- 10C4 used for case hardened components such as cams and cam shafts, gudgeon pin, sprocket and spindle.
- 30C8 used for cold-formed and case hardened parts such as a socket, tie road, yoke, lever and rocker arm.
- 40C8 used for transmission shaft, crank shaft, connecting road, bolts
- 45C8 used for machine tool spindle, transmission shaft, bolts and gears of large dimensions
- 50C4 used for transmission shaft,, worms, gears and cylinders.
- 55C8 used for components with moderate wear resistance such as gears, cam, sprocket, cylinder and key.
- 60C4 used for machine tool spindle, hardened bolt and pinion.
- 65C6 used to make coil and leaf spring.