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- Carbon Steel 12L14
Carbon Steel 12L14

Tipo de material
Metal
Nome do material
Carbon Steel 12L14
Nomes alternativos
G12144 | 1.0718
Compatibilidade de processos
Fresagem CNC, Torneamento CNC
Carbon Steel 12L14 em Maquinação CNC

Carbon Steel 12L14 is a type of carbon steel with improved machinability. It is also known as "Free Machining Steel” and the fastest machining bar product.
12L14 is used in high-volume part machining. It belongs to the '12xx' category, indicating re-sulfurized and re-phosphorized steels. The "12" in the name indicates that it contains approximately 0.12% carbon, and the "L14" indicates the addition of lead for enhanced machinability. We offer 12L14 bars in rounds, hexagons, and squares. Variations like 12L14+Te (with added tellurium) and 12L14+Se (with added selenium) are rare and require high volumes for production. These variants can boost parts production by at least 25% compared to conventional leaded steel.
It is flexible and easy to work with, as it can be bent, riveted, or crimped. However, its enhanced ductility and machinability make it slightly weaker than similar carbon steel alloys. This type of steel is commonly used in high-speed screw machine products and other machinery requiring rapid operations. Heat treatment is not recommended for 12L14 because of its low carbon and machining additives. Welding is possible, but it is also not generally recommended due to the presence of lead, which can cause issues with weld quality. Welding may also release toxic fumes from the lead content.
Tabela de propriedades of Carbon Steel 12L14
PROPRIEDADES MECÂNICAS | |
---|---|
Resistência à tração final | 540 MPa(78,000 psi) |
Resistência ao escoamento | 415 MPa(60,000 psi) |
Módulo de Young (Elasticidade) | 190 GPa(28 x 10^6 psi) |
Alongamento na rutura | 10% |
Propriedades físicas | |
Resistência à corrosão | Resistência limitada à corrosão, suscetível de enferrujar |
Magnetismo | Geralmente magnético |
Resistência aos raios UV | Resistência limitada aos raios UV |
Soldabilidade | Good weldability, but precautions needed due to lead content |
Propriedades térmicas | |
Temperatura máxima de serviço | Cerca de 250°C (482°F) |
Coeficiente de expansão térmica | 11,7 x 10^-6/°C(20-100°C) |
Condutividade térmica | 43 W/(m·K) |
Propriedades eléctricas | |
Resistividade eléctrica | 2,15 x 10^-7 ohm-metro |
Segurança ESD | Carbon Steel 12L14 is a conductor, so ESD safety is generally good |
Conhecimentos básicos of Carbon Steel 12L14
What is Carbon Steel 12L14?
Carbon Steel 12L14 is a type of carbon steel that contains lead as an additive. The addition of lead makes the steel more machinable and improves its cutting ability. 12L14 has a machinability rating of 190, achieved by distributing lead particles throughout the steel.
12L14 steel is heat-resistant and has limited corrosion resistance. This steel remains strong at high temperatures and is weldable. Its low carbon content makes welding easy without extra treatment, but its lead content requires precautions.
Advantages of Carbon Steel 12L14
Excelente maquinabilidade
Designed for high-speed machining
Contains lead for improved chip formation and lubrication
Promotes precision and consistency in dimensions
Cost-effective in terms of machining time and tool life
Provides a smooth and aesthetically pleasing surface finish
Weldable with proper precautions
Suitable for cold forming
Applications of Carbon Steel 12L14
Fasteners (screws, bolts, nuts)
Automotive components (bushings, spacers, fittings)
Shafts and couplings
Electronic components (connectors, fasteners)
Instrumentation parts (screws, gears, housings)
Firearms components (non-critical areas)
Agricultural machinery components
Fittings and flanges
Carbon Steel 12L14 FAQs sobre a compra
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