AISI 12L14 Steel
Material Notes: AISI 12L14 Steel is categorized as a low-carbon alloy and it is known for its exceptional machinability due to the addition of lead which reduces tool wear. It has a tensile strength of 540 megapascals and a yield strength of 415 mega pascals which makes this steel a good fit for non-critical applications with low-difficulty machining requirements and moderate strength.
Applications:Â The AISI 12L14 steel is suited perfectly for precision components, automotive parts, and industrial fittings due to its excellent machinability. Its effectiveness in mass production lowers the costs and prolongs the lifespan of the tooling which makes it a dependable material for parts with strict tolerances and excellent surface finishes.
Specifications for AISI 12L14 Steel
AISI 12L14 steel is a free-machining alloy known for its excellent machinability, smooth finish, and strength. Widely used in manufacturing, it’s valued for its efficiency and versatility in industrial applications.
| Property | Metric | English | Comments |
|---|---|---|---|
| Density | 7.87 g/cc | 0.284 lb/in³ | Typical for steel. |
| Hardness, Brinell | 163 | 163 | |
| Hardness, Knoop | 184 | 184 | Converted from Brinell |
| Hardness, Rockwell B | 84 | 84 | Converted from Brinell |
| Hardness, Vickers | 170 | 170 | Converted from Brinell |
| Tensile Strength, Ultimate | 540 MPa | 78300 psi | |
| Tensile Strength, Yield | 415 MPa | 60200 psi | |
| Elongation at Break | 10% | 10% | |
| Reduction of Area | 35% | 35% | |
| Modulus of Elasticity | 200 GPa | 29000 ksi | Typical for steel |
| Bulk Modulus | 160 GPa | 23200 ksi | Typical for steel. |
| Poisson's Ratio | 0.29 | 0.29 | Typical for steel |
| Machinability | 160% | 160% | Based on 100% machinability for AISI 1212 steel. |
| Shear Modulus | 80.0 GPa | 11600 ksi | Typical for steel. |
| Electrical Resistivity | 0.0000174 ohm-cm | 0.0000174 ohm-cm | Typical steel |
| CTE, linear @ 20°C/68°F | 11.5 µm/m-°C | 6.39 µin/in-°F | Typical steel |
| CTE, linear @ 0-300°C/32-572°F | 12.2 µm/m-°C | 6.78 µin/in-°F | Typical for steel |
| CTE, linear @ 0-500°C/32-932°F | 13.9 µm/m-°C | 7.72 µin/in-°F | Typical for steel |
| Specific Heat Capacity | 0.472 J/g-°C | 0.113 BTU/lb-°F | Typical steel |
| Thermal Conductivity | 51.9 W/m-K | 360 BTU-in/hr-ft²-°F | Typical steel |
| Carbon, C | <= 0.15 % | <= 0.15 % | |
| Iron, Fe | 97.91 - 98.7 % | 97.91 - 98.7 % | As remainder |
| Lead, Pb | 0.15 - 0.35 % | 0.15 - 0.35 % | |
| Manganese, Mn | 0.85 - 1.15 % | 0.85 - 1.15 % | |
| Phosphorus, P | 0.040 - 0.090 % | 0.040 - 0.090 % | |
| Sulfur, S | 0.26 - 0.35 % | 0.26 - 0.35 % |
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