S20c Mild Carbon Alloy Steel Round Bar Rod
The material composition of the S20c mild carbon alloy steel round bar rod includes a maximum carbon content of 0.22%, a maximum of 0.15% silicon, 0.60-0.90% manganese, and a maximum of 0.040% phosphorus. It also has a maximum of 0.050% sulfur.
The S20c round bar rod is durable, easy to form, and machine. It is available in various sizes and lengths, making it easy to manipulate according to specific requirements. It is also cost-effective, making it an ideal choice for applications where cost is an essential consideration.
S20c Mild Carbon Alloy Steel Round Bar Rod is a high quality steel product with the following specifications:
1. Diameter range: 5mm-250mm
2. Length range: any length
3. Chemical composition: Carbon content is 0.18% to 0.23%, manganese content is 0.60% to 0.90%, sulfur content is up to 0.050%, phosphorus content is up to 0.050%
4. Mechanical properties: good strength and toughness, easy processing, easy welding, easy cutting
1.AISI 1020 steel Supply Form & Size
| Form of Supply | Size(mm) | Length(mm) |
| Round bar | Φ6-Φ1,000 | 3,000-10,000 |
| Square bar | 100x100-600x600 | 3,000-6,000 |
| Plate/Sheet | Thickness :20-400 Width:80-1,000 |
2,000-6,000 |
| Flat bar/Blcoks | Thickness :120-800 Width:120-1,500 |
2,000-6,000 |
2.Surface Finish&Tolerance
| Surface Finish | Black-Forged | Black-Rolled | Turned | Grinding | Polished | Peeled | Cold Drawn |
| Tolerance | (0，+5mm) | (0，+1mm) | (0，+3mm) | Best h9 | Best h11 | Best H11 | Best H11 |
3.Chemical Composition&Related Specifications
| Grade | C | Si | Mn | P | S |
| 1020 | 0.17-0.23 | ≤ 0.4 | 0.30-0.60 | ≤ 0.04 | ≤ 0.05 |
| Germany | UK | China | Japan |
| C22/1.0402 | EN3/070M20 | 20# | S20C |
4.Mechanical Property
| properties | Metric | Imperial |
| Tensile strength | 420 MPa | 60900 psi |
| Yield strength | 350 MPa | 50800 psi |
| Modulus of elasticity | 205 GPa | 29700 ksi |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Poisson’s ratio | 0.29 | 0.29 |
| Elongation at break (in 50 mm) | 0.15 | 0.15 |
| Hardness, Brinell | 121 | 121 |
| Hardness, Knoop (converted from Brinell hardness) | 140 | 140 |
| Hardness, Rockwell B (converted from Brinell hardness) | 68 | 68 |
| Hardness, Vickers (converted from Brinell hardness) | 126 | 126 |
| Machinability (based on AISI 1212 steel. as 100 machinability) | 65 | 65 |
5.AISI 1020 steel Forging
Forging temperature:950-1200℃,air cooling after forging.
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