SAE/AISI 1034 Carbon Steel (UNS G10340)
SAE/AISI 1034 carbon steel is a medium-carbon alloy recognized for its balanced combination of strength, toughness, and wear resistance. With moderate tensile strength and good machinability, it is commonly used in the production of shafts, gears, bolts, and other mechanical components that require reliable performance and cost-effectiveness.
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| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | 98.73% | 99.18% |
| Carbon | 0.32% | 0.38% |
| Manganese | 0.50% | 0.80% |
| Phosphorous | —— | 0.04% |
| Sulfur | —— | 0.05% |
The following table provides a list of SAE/AISI 1034 properties in both SI and US customary/Imperial units.
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| Physical Properties | Metric |
|---|---|
| Density | 7870 kg/m3 |
| Mechanical Properties | Metric |
| Young’s Modulus (E) | 200 GPa |
| Bulk Modulus (K) | 140 GPa |
| Shear Modulus (G) | 80 GPa |
| Poisson’s Ratio (ν) | 0.27 - 0.30 |
| Izod Impact | 75 J |
| Thermal Properties | Metric |
| Thermal Conductivity | 51 W/m·K |
| Specific Heat Capacity (Cp) | 472 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 6.50×10-5 1/°C |
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 1034 Carbon Steel
| Advantages | Disadvantages |
|---|---|
| Good strength | Limited hardenability |
| Cost-effective | Low wear resistance |
| Good machinability | Moderate ductility |
| Good weldability | Limited corrosion resistance |
Applications of 1034 Carbon Steel
SAE/AISI 1034 carbon steel is utilized across industries that demand strength, machinability, and affordability, including:
- Shafts and axles: Its strength and hardness make it suitable for use in shafts and axles where moderate strength and good wear resistance are important.
- Gears and sprockets: The machinability allows for the production of gears and sprockets used in machinery and mechanical systems.
- Bolts and fasteners: Often used to manufacture bolts, studs, and fasteners due to its strength and ease of machining.
- Crankshafts: The strength and fatigue resistance make it suitable for manufacturing crankshafts used in automotive engines and machinery.
- Connecting rods: Used in the production of connecting rods, which connect the piston to the crankshaft in internal combustion engines.
- Machine components: Various machine parts such as bushings, couplings, and levers benefit from its machinability and moderate strength.
- Structural applications: Utilized in construction and machinery frames where moderate strength and cost-effectiveness are important.
- Tool and die components: Some components requiring moderate strength and wear resistance can be manufactured from this alloy.