SAE/AISI 1070 Carbon Steel (UNS G10700)
SAE/AISI 1070 is a medium-carbon steel alloy valued for its strength, hardness, and cost-effectiveness. It offers a balanced combination of mechanical properties and machinability, making it suitable for applications requiring wear resistance and durability across industrial and commercial sectors.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | 98.26% | 98.75% |
| Carbon | 0.65% | 0.75% |
| Manganese | 0.60% | 0.90% |
| Phosphorous | —— | 0.04% |
| Sulfur | —— | 0.05% |
The following table provides a list of SAE/AISI 1070 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) | 640 MPa |
| Tensile Strength (Yield) | 495 MPa |
| Young’s Modulus (E) | 190 - 210 GPa |
| Bulk Modulus (K) | 140 GPa |
| Shear Modulus (G) | 80 GPa |
| Elongation at Break | 10% |
| Poisson’s Ratio (ν) | 0.27 - 0.30 |
| Brinell Hardness | 192 |
| Thermal Properties | Metric |
| Thermal Conductivity | 50 W/m·K |
| Specific Heat Capacity (Cp) | 470 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 1.18×10-5 1/°C |
| Electrical Properties | Metric |
| Electrical Conductivity | 5.8×106 S/m |
| Electrical Resistivity | 1.7×10-7 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 1070 Carbon Steel
| Advantages | Disadvantages |
|---|---|
| High strength | Low toughness |
| Good wear resistance | Limited corrosion resistance |
| Cost-effective | Difficult to weld |
Applications of 1070 Carbon Steel
Due to its high carbon content and strong mechanical performance, SAE/AISI 1070 is used in a range of demanding applications, including:
- Springs: Widely used in the manufacturing of coil springs, leaf springs, and mechanical springs.
- Cutting Tools: Employed in the production of cutting tools like knives, blades, and cutting implements.
- Automotive Components: Certain components benefit from the strength and toughness offered by this steel.
- Agricultural Equipment: Utilized in manufacturing equipment such as plows, harrows, and tillage tools.
- Musical Instruments: Used in select instrument parts requiring high tensile strength and flexibility.
- Industrial Equipment: Applied in machinery where strength and durability are critical.
- Hand Tools: Common in tools such as wrenches, hammers, chisels, and screwdrivers.