1020/1.0402

AISI 1020 carbon steel is a low carbon steel which has at least 0.17%C and 0.3%Mn. It has a good combination of strength and ductility and can be carburized,but due to its low carbon content, it is difficult to induction hardening or flame hardening. Due to lack of alloying elements, it is not suitable for nitriding.AISI 1020 steel can be easily machined,and can be welded easily using all of the traditional methods.

Chemical Composition

GRADE	C	Si	Mn	P	S
1020	0.18-0.23	0.15-0.35	0.30-0.60	≤ 0.040	≤ 0.050

Mechanical Property

Diameter mm	Tensile Strength Mpa	Yield Strength Mpa	Elongation %	Reduction of area %	Condition
≤ 16	500 – 650	≥ 340	≥20	≥50	Quenched and tempered
>16 – 40	470 – 620	≥290	≥22	≥50
≤ 16	≥430	≥240	≥24		Normalised
>16 – 100	≥410	≥3210	≥25

Forging

Forging temperature:950-1200℃,air cooling after forging.

Heat Treatment

Heat Treatment Process	Temperature Range	Cooling Method
Normalising	880-920°C	Air cooling
Soft annealing	680-710°C	Furnace cooling
Hardening	860-900°C	Water quench
Tempering	550-660°C	Air cooling

APPLICATIONHEAT TREATMENT

AISI 1020 steel can be largely utilized in all industrial sectors in order to enhance weldability or machinability properties. It is used in a variety of applications due to its cold drawn or turned and polished finish property.

AISI 1020 steel is also  used in case hardened condition,and it finds use in the following components:

• axles
• general engineering parts and components
• machinery parts
• shafts
• camshafts
• gudgon pins
• ratchets
• light duty gears
• worm gears
• spindles
• cold headed bolts
• automotive components