Aço carbono 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.
Composição química
| GRADE | C | Si | Mn | P | S |
| 1020 | 0.18-0.23 | 0.15-0.35 | 0.30-0.60 | ≤ 0.040 | ≤ 0.050 |
Propriedade mecânica
| 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 |
Forjamento
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 |
| Têmpera | 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
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