Equivalent Materials
- AISI 1020 (domestic)
- S20C (Japanese JIS G4051)
- 1.0402 C22 (German DIN standards)
These alternatives show similar carbon content, tensile strength, and comparable responses to heat treatment and quenching processes.
Characteristics
1020 steel exhibits versatile properties including robust strength and ductility. The material is readily weldable by all standard methods and can be forged at temperatures between 2300-1800 deg F. Advantages include high tensile strength for load-bearing structures, corrosion and heat resistance, and recyclability. Disadvantages include rust susceptibility when exposed to moisture.
Uses
Common applications include cold-headed bolts and simple structural components where good ductility and weldability are required and heavy-duty strength is not critical.
Mechanical Properties
| Grade | Condition | Ultimate Strength (ksi/MPa) | Yield Strength (ksi/MPa) | Elongation % | Rockwell B |
|---|---|---|---|---|---|
| 1020 | HR (Hot Rolled) | 50/345 | 32/221 | 25 | 55 |
| 1020 | CW (Cold Worked) | 70/483 | 60/414 | 5 | 75 |
| 1020 | SR (Stress Relieved) | 65/448 | 50/345 | 10 | 72 |
| 1020 | A (Annealed) | 48/331 | 28/193 | 30 | 50 |
| 1020 | N (Normalized) | 55/379 | 34/234 | 22 | 60 |
Chemical Composition
| Grade | Carbon | Manganese | Phosphorus (max) | Sulfur (max) |
|---|---|---|---|---|
| 1020 | 0.18-0.23 | 0.30-0.60 | 0.040 | 0.050 |
