ASTM A573 Grade 70 is categorized as Carbon Steel. It is composed of (in weight percentage) 0.28% Carbon (C), 0.85-1.20% Manganese (Mn), 0.04%(max) Phosphorus (P), 0.05%(max) Sulfur (S), 0.15-0.30% Silicon (Si), and the base metal Iron (Fe). Another common designation of ASTM A573 Grade 70 carbon steel is UNS K02701.
Steel is the common name for a large family of iron alloys. Steels can either be cast directly to shape, or into ingots that are reheated and hot-worked into a wrought shape by forging, extrusion, rolling, or other processes. Wrought steels are the most common engineering material used, and come in a variety of forms with different finishes and properties. Carbon steel alloying elements do not exceed these limits: 1% carbon, 0.6% copper, 1.65% manganese, 0.4% phosphorus, 0.6% silicon, and 0.05% sulfur.
The typical elastic modulus of carbon steels at room temperature (25°C) ranges from 190 to 210 GPa. The typical density of carbon steels is about 7.85 g/cm3. The typical tensile strength varies between 276 and 1882 MPa. The wide range of ultimate tensile strength is largely due to different heat treatment conditions.
| Category | Steel |
| Class | Carbon steel |
| Designations | United States: UNS K02701 |
| Element | Weight % |
| C | 0.28 |
| Mn | 0.85-1.20 |
| P | 0.04 (max) |
| S | 0.05 (max) |
| Si | 0.15-0.30 |
| |
| Properties | Conditions |
| T (°C) | Treatment |
| Density (×1000 kg/m3) | 7.7-8.03 | 25 | |
| Poisson's Ratio | 0.27-0.30 | 25 | |
| Elastic Modulus (GPa) | 190-210 | 25 | |
| Tensile Strength (Mpa) | 485-620 | 25 | |
| Yield Strength (Mpa) | 290 |
| Elongation (%) | 18, 8 |
| Reduction in Area (%) | |
supptheocont-mi Keith Hunt https://wakelet.com/wake/OBfBF8sWd-SIxZbKdVHwJ
pecmamava