SAE/AISI 1141 Carbon Steel (UNS G11410)
SAE/AISI 1141 steel exhibits good strength and wear resistance, making it suitable for various applications such as shafts, bolts, studs, gears, and other components that require moderate strength and machinability.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | 97.73% | 98.20% |
| Carbon | 0.37% | 0.45% |
| Manganese | 1.35% | 1.65% |
| Phosphorous | 0.04% | |
| Sulfur | 0.08% | 0.13% |
The following table provides a list of SAE/AISI 1141 properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 7850 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 675 MPa |
| Tensile Strength (Yield) | 360 MPa |
| Young’s Modulus (E) | 190 - 210 GPa |
| Bulk Modulus (K) | 140 GPa |
| Shear Modulus (G) | 80 GPa |
| Elongation at Break | 22% |
| Reduction of Area | 38% |
| 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) | 1.2×10-5 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 1141 Carbon Steel
| Advantages | Disadvantages |
|---|---|
| Excellent Machinability | Reduced Toughness |
| Cost-Effective | Limited Hardenability |
| Good Wear Resistance | Lower Corrosion Resistance |
Applications of 1141 Carbon Steel
AISI 1141 carbon steel finds applications in various industries where a combination of strength, machinability, and cost-effectiveness is required. Here are some common applications of 1141 carbon steel:
- Machined Components: Due to its excellent machinability, 1141 carbon steel is widely used for manufacturing machined components.
- Fasteners: 1141 carbon steel is often utilized for the production of fasteners such as screws, nuts, and bolts.
- Couplings and Fittings: The good machinability and moderate strength of 1141 carbon steel make it suitable for manufacturing couplings, fittings, and connectors used in mechanical systems and pipelines.
- Hydraulic and Pneumatic Components: Components in hydraulic and pneumatic systems, such as fittings, connectors, and hydraulic cylinder parts, can be made from 1141 carbon steel due to its machinability and strength characteristics.
- Gears and Sprockets: 1141 carbon steel’s wear resistance and moderate strength make it suitable for manufacturing gears, sprockets, and other power transmission components.
- Automotive Parts: Certain automotive components, including axles, crankshafts, and camshafts, can be made from 1141 carbon steel due to its machinability and sufficient strength for these applications.
- Tooling and Dies: 1141 carbon steel may be used in the production of tooling and dies for stamping, forging, or forming processes where wear resistance, machinability, and moderate strength are important factors.