SAE/AISI 1117 Carbon Steel (UNS G11170)
SAE/AISI 1117 is a low-carbon steel alloy commonly used for various applications due to its outstanding machinability, weldability, and affordability. It offers excellent surface finish and formability, making it suitable for components that require precision and durability.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | 98.33% | 98.78% |
| Carbon | 0.14% | 0.20% |
| Manganese | 1.00% | 1.30% |
| Phosphorous | —— | 0.04% |
| Sulfur | 0.08 | 0.13% |
The following table provides a list of SAE/AISI 1117 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) | 475 MPa |
| Tensile Strength (Yield) | 400 MPa |
| Young’s Modulus (E) | 190 - 210 GPa |
| Bulk Modulus (K) | 140 GPa |
| Shear Modulus (G) | 80 GPa |
| Elongation at Break | 15% |
| Reduction of Area | 40% |
| Poisson’s Ratio (ν) | 0.27 - 0.30 |
| Brinell Hardness | 137 |
| Thermal Properties | Metric |
| Thermal Conductivity | 52 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 | 4.12×106 S/m |
| Electrical Resistivity | 2.43×10-7 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 1117 Carbon Steel
| Advantages | Disadvantages |
|---|---|
| Excellent machinability | Limited strength and hardness |
| Good surface finish | Reduced impact resistance |
| Cost-effective | |
| Good weldability |
Applications of 1117 Carbon Steel
SAE/AISI 1117 is utilized in various applications where its excellent machinability and weldability are valued, including:
- Machined Components: It is widely used for producing components like bushings, couplings, spindles, shafts, and fittings.
- Fasteners: It is used in the production of bolts, screws, studs, and nuts.
- Hydraulic Fittings: The alloy is suitable for manufacturing hydraulic couplings, connectors, and adapters.
- Automotive Components: It is commonly used in automotive parts such as bushings, spindles, and shafts.
- Small Machine Parts: Commonly used for gears, rollers, pins, and cams due to its ease of machining and good surface finish.
- Tooling and Fixtures: Sometimes employed for jigs, fixtures, and templates requiring good machinability.