Visión general
HDC Manufacturing is your eminent hub for tailored fabrication of metallic components, boasting a wealth of ten years’ proficiency. Our avant-garde production facilities showcase cutting-edge 4-axis and 5-axis machining centers, complemented by sophisticated scrutiny apparatus like Coordinate Measuring Machines (CMMs). HDC Manufacturing takes great pride in an array of machining alternatives, encompassing Mecanizado CNC, fundición, forjar, Corte por láser, y estampado de metal.
Delving into the realm of 42CrMo4 Steel Machining, HDC Manufacturing emerges as a steadfast ally laden with abundant expertise. Our adept team harnesses the most recent technologies and refined methodologies, ensuring the zenith in processing 42CrMo4 steel. Whether entailing intricate detailing or robust structural elements, HDC Manufacturing stands primed to dispense precision and eminence in 42CrMo4 steel machining.
Unveil the myriad prospects with HDC Manufacturing as your entrusted collaborator in the realm of 42CrMo4 steel machining. Our unwavering dedication to excellence, fortified by years of industry acumen, guarantees that your custom metal components align with the utmost standards. Connect with HDC Manufacturing today and let us be your preeminent choice for all facets of 42CrMo4 steel machining.
¿Qué es el acero 42CrMo4?
42CrMo4 steel is one of the frequently used alloy steels that is characterized by its high strength, great toughness, and good hardenability. It is certainly a chromium-molybdenum one that is characterized by the European standard EN 10083-3. The “42” stands for the approximate carbon content which is 0.42% (carbon), while CrMo means chromium (Cr) and molybdenum (Mo) are added as alloying components. This steel is in demand where elevated tensile strength is required, such as in gears, shafts, axles, connecting rods, heavy duty machinery components, and so forth. 42CrMo4 steel could be thermally processed to achieve desired mechanical properties, which would include increased hardness and wear resistance. It is normal to supply it in the quenched and tempered condition that produces a hardened microstructure that meets the extreme demands for various applications in cars, aircraft, and manufacturing fields.
What are the Other Names for 42CrMo4 Steel?
The 42CrMo4 steel known for its high strength, toughness, and hardenability bears as many names as international standards and industrial practice have. Refereed to as 1.7225 steel in the European Union, commercially referred to as SCM440 steel in Japan, it is an engineering structural steel. In the United States, the steel is sometimes referred to as 4140 steel, even though it does not entirely correspond in composition, it possesses similar properties and applications. In the end, all trade names are a reference to the same Cr-Mo steel alloy widely used in industries that demand robust materials for such applications as gears, shafts, axles, and heavy duty components of machinery.
Las limitaciones del acero 42CrMo4
Although boasting some outstanding mechanical attributes, 42CrMo4 steel has weak points that also need to be considered. Weldability can be difficult because of its high hardenability, and thus a need for preheating and post-weld heat treatments to avoid crack formation. Machining might also have some problems, especially in the hardened condition, since the adjustment of suitable parameters and tool materials would need to be carefully made. On the other hand, the steel cost can be high compared to low-alloy steel alternatives because of the alloying of chromium and molybdenum. Compared to plain carbon steels, 42CrMo4 provides a reasonable corrosion resistance, but the corrosion resistance still does not compete with stainless steels or other special alloys. Such limitations put into relief the fact that strict application requirements should be taken into account and that untrimmed components made of 42CrMo4 steel must be used properly for the best performance of these components.
Composición química del acero 42CrMo4
42CrMo4 steel is a strong, hardenable heat-treatable steel with good machinability, strength, wear resistance, toughness, and poor weldability, recognized as an excellent alternative to expensive alloys, like chrome-nickel and chrome-nickel-molybdenum steels. It is commonly used for parts of automotive, armament, mechanical engineering, and more required to be worn, bent, and load. 
| Componente | Peso % |
| Carbono (C) | 0,38 – 0,45 |
| Cromo (Cr) | 0,90 – 1,20 |
| Manganeso (Mn) | 0,60 – 0,90 |
| Molibdeno (Mo) | 0,15 – 0,30 |
| Fósforo (P) | 0,0 – 0,025 |
| Silicio (Si) | 0,0 – 0,40 |
| Azufre (S) | 0,0 – 0,035 |
| Hierro (Fe) | Balance |
La influencia de la composición química en las propiedades del acero 42CrMo4
The mechanical performance of 42CrMo4 steel is characterized by its chemical composition which mainly contains chromium and molybdenum for yield strength and hardenability. Controlled carbon content provides balance for both the strength and the ductility, while manganese helps in developing the toughness. Silicon enables us to make grains more refined and is also helpful in oxidation resistance. The levels of phosphorus and sulfur are minimised so that nobody would face brittleness and problems with machinability. The optimal composition design that this steel exhibits guarantees it is usable in diverse settings hence the preference for it in sectors like automotive manufacturing and machine building.
Propiedades mecánicas del acero 42CrMo4
| Diámetro, dmm | ≤ 16 | 16-40 | 40-100 | 100-160 | 160-250 |
| Espesor, t mm | < 8 | 8-20 | 20-60 | 60-100 | 100-160 |
| Límite elástico, Mpa | ≥900 | ≥750 | ≥650 | ≥550 | ≥500 |
| Resistencia a la tracción, Mpa | 1100-1300 | 1000-1200 | 900-1100 | 800-950 | 750-900 |
| Elongación, % | ≥10 | ≥11 | ≥12 | ≥13 | ≥14 |
| Reduction of area,% | ≥40 | ≥45 | ≥50 | ≥50 | ≥55 |
| impacto | ≥30 | ≥35 | ≥35 | ≥35 | ≥35 |
Propiedades físicas del acero 42CrMo4
| Propiedades físicas | Métrico | inglés | Comentarios |
| Densidad | 7,80 g/cc | 0,282 libras/pulgada² | |
| Módulo de elasticidad | 210 GPa | 20500 ksi | |
| Módulo de corte | 80,0 GPa | 11600 ksi | |
| El coeficiente de Poisson | 0.3 | 0.3 | |
| Propiedades electricas | |||
| Resistividad electrica | 0,0000200 – 0,0000250 ohmios-cm | Acero típico | |
| Propiedades termales | |||
| Capacidad calorífica específica | 0.460 – 0.490 J/g-°C | 0.110 – 0.115 BTU/lb-°F | 50,0 – 100 °C/122 – 212 °F |
| Conductividad térmica | 40.0 – 45.0 W/m-K | 278 – 312 BTU-pulgadas/hora-pie²-°F | Acero típico |
Materiales equivalentes de acero 42CrMo4
| UE | ES | 42CrMo4 | |
| EE.UU | – | 4140 4142 | |
| Alemania | DIN, WNr | 42CrMo4 | |
| Japón | JIS | SCM440H | |
| Francia | AFNOR | 42CD4 | |
| Inglaterra | licenciatura | 708M40 CFS11 | |
| Italia | UNI | 42CrMo4 | |
| España | UNE | 40CrMo4 F1252 | |
| Porcelana | ES | 42CrMo | |
| Suecia | SS | 2244 | |
| Finlandia | SFS | 42CrMo4 | |
| Rusia | GOST | 35KHM 38KHM | |
| Enterrar | YO ASI | 42CrMo4 | |
Composición química de 42CrMo VS 4140 VS 42CrMo4 (1.7225)
| Composición química % | |||||||||
| País | Estándar | Grado de acero (número de material) | C | Si | Minnesota | PAGS | S | cr | Mes |
| Porcelana | GB/T 3077 | 42CrMo | 0,38 a 0,45 | 0,17 a 0,37 | 0,50 a 0,80 | ≤ 0,030 | ≤ 0,030 | 0,90 a 1,20 | 0,15 a 0,25 |
| EE.UU | SAE, AISI; ASTM A29/A29M | SAE 4140 | 0,38 a 0,43 | 0,15 a 0,35 | 0,75 a 1,00 | ≤ 0,035 | ≤ 0,040 | 0,80 a 1,10 | 0,15 a 0,25 |
| UE | EN 10083-3 | 42CrMo4 (1,7225) | 0,38 a 0,45 | ≤ 0,40 | 0,60 a 0,90 | ≤ 0,025 | ≤ 0,035 | 0,90 a 1,20 | 0,15 a 0,30 |
| UE | EN 10083-3 | 42CrMoS4 (1.7227) | 0,38 a 0,45 | ≤ 0,40 | 0,60 a 0,90 | ≤ 0,025 | 0,020 a 0,040 | 0,90 a 1,20 | 0,15 a 0,30 |
Métodos de procesamiento adecuados para acero 42CrMo4
42CrMo4 steel can be machined, subjected to heat treatment, welded, forged, and given surface treatments to get the desirable properties. The machinability of a material allows techniques like drilling and milling to be mostly used. Heat treatment, such as quenching and tempering, is advantageously used to improve the mechanical properties. Welding requres care to avoid cracking. According to the heat, treating strengthens the steel’s microstructure and thus increases its strength and toughness. Shot blasting is a surface treatment that helps to avoid corrosion. Hence, these techniques offer great flexibility in producing components for various industries such as automotive, aerospace, machine, and construction businesses.
Aplicaciones del acero 42CrMo4(1.7225)
- Automotor:
- Adaptador de rueda, Guardia de bloque, Tapa de la válvula, Varilla graduada, y Palanca de cambios mecanizados en acero 42CrMo4 proporcionan componentes duraderos y de alta resistencia para mejorar el rendimiento, la personalización y la confiabilidad del vehículo.
- Aeroespacial:
- Colector de escape, Impulso, Instalación de tuberías, y Cuerpo de la válvula mecanizados con precisión con acero 42CrMo4 contribuyen a crear sistemas aeroespaciales livianos, resistentes al calor y de alto rendimiento, lo que garantiza una funcionalidad y seguridad óptimas.
- Médico:
- Tornillos médicos, Componentes de precisión médica, y Carcasa de la fuente de alimentación del sensor médico fabricados con acero 42CrMo4 ofrecen precisión, solidez y resistencia a la corrosión para aplicaciones médicas críticas, mejorando la estabilidad del implante y la protección del sensor.
- Productos de consumo personalizados:
- Bisagras soldadas, Bisagras para piano, Bisagras de bala, Piezas de bicicleta de montaña personalizadas, y Piezas de BMX personalizadas mecanizados a partir de acero 42CrMo4 brindan soluciones robustas y personalizadas para productos de consumo, garantizando longevidad y confiabilidad.
- Motocicleta:
- Piñones, Ruedas de palanquilla, Cubos de rueda, estribos, y Radiador del mercado de accesorios fabricados con acero 42CrMo4 brindan durabilidad, resistencia y resistencia al calor para motocicletas de alto rendimiento, mejorando tanto la estética como la funcionalidad.
- Remolque:
- los Kit de reparación de acoplador, Pestillo con pasador de resorte, Acoplador, bola de enganche, Gancho de clavija, Gato de remolque, y Rampa de remolque fabricados con acero 42CrMo4 garantizan conexiones de remolque, reparación y capacidades de carga confiables y seguras para un remolque eficiente.
- Bicicleta:
- Potencias de bicicleta, Platos, Bujes de bicicleta, Pedales de bicicleta, y platos y bielas mecanizados a partir de acero 42CrMo4 ofrecen componentes livianos, duraderos y de alto rendimiento para bicicletas, lo que mejora la experiencia y el rendimiento del ciclista.
- Kart:
- Piñones, Arandelas y espaciadores, Bujes de rueda, Aspectos, Volantes, y llantas de rueda fabricados con acero 42CrMo4 contribuyen a la precisión, resistencia y durabilidad de los componentes del kart, garantizando un rendimiento y seguridad óptimos en la pista de carreras.
