SAE/AISI 1151 Carbon Steel (UNS G11510)
SAE/AISI 1151 is a medium carbon steel alloy valued for its balance of strength, toughness, and wear resistance. It is frequently used in applications requiring moderate mechanical performance, such as automotive components and structural elements.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | 98.28% | 98.82% |
| Carbon | 0.48% | 0.55% |
| Manganese | 0.70% | 1.00% |
| Phosphorous | —— | 0.04% |
| Sulfur | 0.08% | 0.13% |
The following table provides a list of SAE/AISI 1151 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) | ≥ 634 MPa |
| Tensile Strength (Yield) | ≥ 348 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 | ≥ 35% |
| Poisson’s Ratio (ν) | 0.27 - 0.30 |
| Brinell Hardness | ≥ 187 |
| 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 | 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 1151 Carbon Steel
| Advantages | Disadvantages |
|---|---|
| Good machinability | Low strength |
| Good weldability | Low toughness |
| Relatively inexpensive | Susceptible to corrosion |
Applications of 1151 Carbon Steel
SAE/AISI 1151 is a versatile carbon steel used across industries for components requiring strength and durability, including:
- Structural components: Often used to make structural elements such as beams, columns, and plates, as well as machine parts like gears, shafts, and bearings.
- Fasteners: A common material for manufacturing bolts, nuts, and screws, and also used in wire and fencing applications.
- Tools: Utilized in producing tools such as saw blades, drills, and wrenches.
- Machinery: Employed in the construction of engines, pumps, and conveyors.
- Automotive parts: Used in the fabrication of axles, gears, pistons, and other vehicle components.