SAE/AISI 1211 Carbon Steel (UNS G12110)
SAE/AISI 1211 is a resulfurized carbon steel that is commonly used for screw machine operations. It has good machinability and moderate strength, and is often used in applications where high strength is not required.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | 98.70% | 99.23% |
| Carbon | 0.13% | |
| Manganese | 0.60% | 0.90% |
| Phosphorous | 0.07% | 0.12% |
| Sulfur | 0.10% | 0.15% |
The following table provides a list of SAE/AISI 1211 properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 7870 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 515 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 | 10% |
| Reduction of Area | 35% |
| Poisson’s Ratio (ν) | 0.27 - 0.30 |
| Brinell Hardness | 163 |
| Thermal Properties | Metric |
| Thermal Conductivity | 52 W/m·K |
| Specific Heat Capacity (Cp) | 470 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 1.15×10-5 1/°C |
| Electrical Properties | Metric |
| Electrical Conductivity | 4.1×106 S/m |
| Electrical Resistivity | 2.4×10-7 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 1211 Carbon Steel
| Advantages | Disadvantages |
|---|---|
| Good machinability | Low strength |
| Moderate cost | Low toughness |
| Wide availability | Susceptible to corrosion |
| Good weldability |
Applications of 1211 Carbon Steel
1211 carbon steel is a versatile and affordable material that is well-suited for a variety of applications, including:
- Screw machine operations: 1211 carbon steel is commonly used in screw machine operations because it is easy to machine and has good machinability. Screw machine operations are used to produce a variety of small parts, such as screws, nuts, and bolts.
- Gear cutting: 1211 carbon steel is also used in gear cutting because it is strong and has good machinability. Gear cutting is used to produce gears, which are used in a variety of machines, such as cars, trucks, and appliances.
- Forming: 1211 carbon steel can be formed into a variety of shapes, such as tubes, pipes, and sheets. This makes it a versatile material that can be used in a variety of applications.
- Stamping: 1211 carbon steel can be stamped into a variety of shapes, such as washers, brackets, and clips. This makes it a cost-effective material that can be used to produce a variety of small parts.
- Welding: 1211 carbon steel can be welded, which makes it a versatile material that can be used in a variety of applications. Welding is a process that joins two pieces of metal together using heat.
- Machining: 1211 carbon steel is easy to machine, which makes it a cost-effective material that can be used to produce a variety of parts. Machining is a process that uses tools to remove material from a piece of metal to create a desired shape.