Welcome to HDC Manufacturing, the steadfast ally in the bespoke fabrication of metallic components, boasting a reservoir of industry acumen spanning more than a decade. Nestled within our state-of-the-art facilities, adorned with avant-garde apparatus such as 4-axis and 5-axis machining centers, alongside meticulous inspection instruments like coordinate measuring machines, HDC Manufacturing proudly claims its stature as a preeminent purveyor of personalized metal resolutions.
The linchpin of our prowess resides in 4140 Steel Machining. Armed with a proficient cohort and advanced CNC machining prowess, HDC Manufacturing pledges the zenith of quality and precision in each endeavor. Be it intricate constituents or robust fragments, HDC Manufacturing’s unwavering allegiance to excellence ensures an apogee of outcomes when interfacing with 4140 Steel.
Embark upon an odyssey through the plethora of machining alternatives HDC Manufacturing proffers, spanning the gamut from CNC machining to casting, forging, laser incision, and metal stamping. Our pliable capabilities stand poised to attend to a myriad of requirements, delivering bespoke resolutions attuned to the distinctive needs of your undertakings. Select HDC Manufacturing for your metallic craftsmanship requisites, where erudition and ingenuity converge, breathing life into your visionary aspirations.
¿Qué es el acero 4140?
The 4140 steel is a low alloy steel part enriched by chromium, molybdenum and manganese, known for its distinctive quality of high toughness, high torsional strength and good fatigue strength. This composite structure provides with excellent toughness, strength, and wear resistance. The process of heat treatment, annealing and tempering, strengthens the steel for a specific use. 4140 steel’s robustness and durability make it a good choice for producing such components as gears, axles, and bolts where it is widely used across many industries like oil and gas, agriculture, defense and automotive for its ability to stay in good condition even under difficult conditions.
¿Cómo se nombra el acero 4140 según qué regla?
El acero 4140 se designa según el sistema de clasificación de acero AISI/SAE, donde el primer dígito (4) denota una aleación de molibdeno, el segundo dígito (1) indica elementos de aleación adicionales como cromo y molibdeno, y los dos dígitos finales (40) especifican el contenido de carbono del acero como aproximadamente 0,40%. Esta nomenclatura proporciona una referencia rápida a la composición química y las propiedades del acero, destacando el uso de molibdeno para mejorar la resistencia, la tenacidad y la resistencia al desgaste, y facilitando su identificación para aplicaciones que requieren materiales robustos.
Composición química del acero 4140
El acero 4140 se clasifica como un acero de bajo carbono y baja aleación con buena resistencia al impacto, resistencia al desgaste, templabilidad, tenacidad estructural, fuerza y leve resistencia a la corrosión. Si bien es pobre en soldabilidad, debe calentarse a más de 800 °C si se forja. El 4140 es versátil, como acero para herramientas natural, definitivamente se usa para herramientas y partes de máquinas industriales sujetas a grandes cargas, como cigüeñales, ejes traseros, clips de resorte, colectores, engranajes, direccion etc.
| Componente | Peso % |
| Carbono (C) | 0,38 – 0,43 |
| Hierro (Fe) | 96.785 – 97.77 |
| Cromo (Cr) | 0,75 – 1,00 |
| Manganeso (Mn) | 0,60 – 0,90 |
| Molibdeno (Mo) | 0,15 – 0,25 |
| Fósforo (P) | 0,0 – 0,035 |
| Silicio (Si) | 0,15 – 0,30 |
| Azufre (S) | 0,0 – 0,04 |
La influencia de la composición química en las propiedades del acero 4140
One of the essential factors that determine the mechanical properties of the 4140 steel, with about 0.40% carbon, 0.80-1.10% chromium, 0.15-0.25% molybdenum and 0.75-1.0% manganese, is its chemical composition. Carbon gives a combination of strength and ductility, chromium adds additional strength, hardness, tensile strength, and corrosion resistance, molybdenum gives tensile strength at high temperatures as well as resistance to wear and tear, and manganese improves hardenability and imparts resistance cracking. Having such a unique alloy composition, the 4140 steel gains high strength, toughness, wear resistance, and the ability to undergo heat treatment and to be used in the applications which are not damaging and in which performance under stress is crucial, such as gears, axles, and shafts.
Propiedades mecánicas del acero 4140
| Propiedades mecánicas | Métrico | inglés |
| Resistencia a la tracción | 1020 MPa | 148000psi |
| Resistencia a la tracción | 655 MPa | 95000psi |
| Alargamiento a la rotura | 17.7 % | 17.7 % |
| Reducción del área | 46.8 % | 46.8 % |
| Dureza, Brinell | 302 | 302 |
| Dureza, Nudo | 328 | 328 |
| Dureza, Rockwell B | 99 | 99 |
| Dureza, Rockwell C | 32 | 32 |
| Dureza, Vickers | 319 | 319 |
| Módulo de elasticidad | 205 GPa | 29700 ksi |
| Módulo de volumen | 160 GPa | 23200 ksi |
| Módulo de corte | 80,0 GPa | 11600 ksi |
| El coeficiente de Poisson | 0.29 | 0.29 |
| maquinabilidad | 65 % | 65 % |
Propiedades físicas del acero 4140
| Propiedades físicas | Valor | |
| Densidad | 7,85 g/cc | |
| Punto de fusion | 2580-2650 °F | |
| Calor especifico | 1,13 x 10^-1 BTU/lb-°F | |
| Conductividad térmica | 296 BTU-in/hr-ft^2-°F | |
Materiales equivalentes Acero 4140
| UE | EE.UU | Alemania | Francia | Italia | España | Enterrar |
| ES | – | DIN,WNr | AFNOR | UNI | UNE | YO ASI |
| 42CrMoS4 (1.7227) | 4140 | 42CrMoS4 | 42CD4u | 42CrMo4 | 40CrMo41 | 42CrMoS4 |
El precio del acero 4140
The price of 4140 steel is somewhat volatile to changes that are brought about by factors that include market demand, raw material costs, supply levels, and overall economy. It depends on the steel’s form (e.g., bars, plates, and sheets), size, and other operations such as heat treatment and so on. Because the prices are variable, at any given time, for the most correct and the latest pricing, it is advised to contact steel suppliers or study recent market reports directly. Steel is priced per pound or per metric ton primarily, and cost reductions could be possible on per-unit basis for large volume purchases. Furthermore, passing through the retailers may include shipping, handling, and other fees.
¿Qué limitaciones tiene el acero 4140?
4140 steel, despite its multiple advantages in strength, toughness, and versatility facing the limits such as the reduced weldability requesting special welding procedures to stop cracking, lower corrosion resistance compared to the stainless steels hence protective coatings are required, and the technical problems in machining behaviour due to its hardness which causes a rise in manufacturing costs. Also, its alloying elements add, not only the material but also the processing expenses, thus making it more pricey than the simplest carbon steels. Furthermore, thicker sections are tougher to treat for homogenous properties and, thus, may crack if not tempered properly. Moreover, some specific sizes of 4140 steel are not readily available making customized options time-consuming and costly, leading to delays and extra expenses. Weighing these factors against the benefits is a big decision that is made for each given application.
Métodos de procesamiento comunes utilizados para el acero 4140
The properties of 4140 steel will be improved by different methods of processing it to suit various applications. By forging the steel the structure is strengthened and made tougher, while annealing is done to lower hardness and remove internal stresses which makes the steel more easy to work with (more workable). Normalization adds refinement to the grain structure, and thus improving toughness and uniformity come together. Hardening, which is the process of heating and quenching followed by tempering, increases durability and resistance to wear but decreases the toughness to avoid brittleness. Instead, the carburizing process hardens the surface for parts, where the core must be tough and outside parts must be hard. Though fairly tough, 4140 can be machined using proper tools and conditions. The process collectively makes 4140 steel customizable, thus it meets the expected performance of specific applications, such as the required mechanical strength, toughness and wear resistance.
Aplicaciones del acero 4140
4140 Steel encuentra diversas aplicaciones en diversas industrias:
- Industria automotriz: Utilizado para la elaboración Espaciadores y adaptadores de ruedas, Tuercas de rueda, Guardias de bloque, Tapas de válvulas, y Perillas de cambio.
- Sector Aeroespacial: Esencial en la producción de Colectores de escape, Impulsores, Accesorios de tuberia, y Cuerpos de válvulas.
- Fabricación de equipos médicos: Empleado en la creación de componentes críticos como Tornillos médicos, Componentes de precisión, y Carcasas de fuente de alimentación para sensores médicos.
- Fabricación personalizada: Utilizado para Bisagras soldadas y Bisagras de bala en la fabricación de productos personalizados.
- Partes de motocicleta: Aplicado en la fabricación de Piñones, Abrazaderas triples, Ruedas, Cubos de rueda, Protectores de radiador, Aceleradores de giro, y estribos.
- Componentes del remolque: Integral a la producción de Cadenas de seguridad, Cerraduras de paleta, Acopladores, Bolas de enganche, Ganchos de clavija, y Gatos de remolque.
- Accesorios para bicicletas: Encontrado en Potencias de bicicleta, Platos, Bujes de bicicleta, Pedales de bicicleta, y platos y bielas.
- Componentes del kart: Esencial para la elaboración Piñones, espaciadores, Cubos de rueda, Aspectos, y Volantes.
