SAE/AISI 1080 Carbon Steel (UNS G10800)
SAE/AISI 1080 carbon steel is a high-carbon alloy known for its excellent strength, hardness, and wear resistance. Commonly used in demanding mechanical applications, it is ideal for components such as springs, cutting tools, blades, and hand tools. Its properties can be further enhanced through heat treatment for improved performance.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | 98.0% | 99.0% |
| Carbon | 0.75% | 0.88% |
| Manganese | 0.60% | 0.90% |
| Phosphorous | —— | 0.04% |
| Sulfur | —— | 0.05% |
The following table provides a list of SAE/AISI 1080 properties in both SI and US customary/Imperial units.
Click on the button to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 7850 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 965 MPa |
| Tensile Strength (Yield) | 585 MPa |
| Young’s Modulus (E) | 190 - 210 GPa |
| Bulk Modulus (K) | 140 GPa |
| Shear Modulus (G) | 80 GPa |
| Elongation at Break | 12% |
| Reduction of Area | 17% |
| Poisson’s Ratio (ν) | 0.27 - 0.30 |
| Brinell Hardness | 293 |
| Thermal Properties | Metric |
| Thermal Conductivity | 48 W/m·K |
| Specific Heat Capacity (Cp) | 470 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 1.22×10-5 1/°C |
| Electrical Properties | Metric |
| Electrical Conductivity | 5.57×106 S/m |
| Electrical Resistivity | 1.8×10-7 Ω·m |
The values in this table are approximate and can vary depending on various factors such as the specific manufacturing process and heat treatment applied to the alloy.
Advantages & Disadvantages of 1080 Carbon Steel
| Advantages | Disadvantages |
|---|---|
| High strength | Low corrosion resistance |
| Good wear resistance | Difficult to weld |
| Good machinability | Lower toughness |
| Cost-effective |
Applications of 1080 Carbon Steel
Due to its high strength, hardness, and durability, 1080 carbon steel is widely used across various industries for mechanically demanding components, including:
- Blades and Knives: Commonly used in the manufacturing of blades for knives, cutting tools, and industrial blades. It provides good sharpness and durability.
- Springs: Utilized in the production of flat springs, coil springs, and leaf springs. Its high strength and resilience make it suitable for applications where the spring needs to withstand heavy loads or repetitive stress.
- Automotive Components: Employed in various automotive components such as coil springs, torsion bars, and suspension system parts. Its strength and toughness contribute to the overall performance and durability of these components.
- Hand Tools: Many hand tools, including hammers, chisels, punches, and wrenches, are made using this material. Its hardness and ability to retain sharp edges make it suitable for withstanding heavy use and providing effective cutting, striking, and gripping functions.
- Agricultural Equipment: Components in agricultural machinery, such as plow blades, tillage tools, and harrow teeth, are manufactured using this steel. Its wear resistance and strength help these components endure demanding field conditions.
- Fasteners: Bolts, screws, and other fasteners often utilize this alloy due to its strength and ability to withstand high stress and tension. It provides reliability and security in fastening applications.
- Industrial Equipment and Machinery: Found in various industrial equipment and machinery components, such as gears, shafts, and couplings. Its high strength and wear resistance help ensure the longevity and performance of these parts.