Does bright mild steel rust?
Mild steel does not have a high resistance to corrosion in its untreated form, however, the corrosion resistance can be greatly improved by applying an appropriate surface protection product to the exposed parts of any project.
Supply Form & Size
| Form of Supply | Size(mm) | Length(mm) |
| Round bar | 6.0mm-1200mm | 2.5m-10m |
Chemical Composition&Related Specifications
| Grade | C | Si | Mn | P | S |
| 1020 | 0.18-0.23 | 0.17-0.37 | 0..3-0.6 | ≤0.04 | ≤0.05 |
Brand comparison table
| AISI/SAE | DIN/EN | BS | JIS/KS | China |
| 1020 | C22(1.0402),C20C(1.0411) | C22(1.0402),C20C(1.0411 | S20C | 20# |
Mechanical Property
| tensile strength σb (MPa) | ≥410(42) |
| yield strength σs (MPa | ≥245(25) |
| elongation δ5 (%) | ≥25 |
| reduction of area ψ (%) | ≥55 |
| hardness | Not heat treated,≤156HB |
| Sample siz | 25mm |

