International term: C20

APPLICATIONS:
AISI / SAE 1020 grade is a general purpose carbon steel suitable for surface hardening. It may, as required, be case hardened, welded and machined. Cold forming may be carried out, preferably from a spheroidized structure.
This grade of steel is used for forged motor shafts, hydraulic shafts and pump shafts, as well as machinery parts.


MACHINABILITY
For parts with a diameter less than 2” (50mm) this grade has been found on occasion to show best machinability when normalized. Parts over 2” (50mm) diameter might be machined following forging or rolling.

WELDABILITY
This grade of steel may be welded by all normal methods: low-carbon electrodes are recommended.
Low-hydrogen electrodes are recommended together with preheat at 300 – 500 º F (150 – 260 º C.) to be maintained during welding, Cool slowly and stress relieve where possible.

Chemical composition:

Production:
Round and Flat
Size according to customer's requirement