{"id":7501,"date":"2022-09-08T14:38:28","date_gmt":"2022-09-08T14:38:28","guid":{"rendered":"https:\/\/hdcmfg.com\/?p=7501"},"modified":"2026-03-13T06:56:09","modified_gmt":"2026-03-13T06:56:09","slug":"4140-mecanizado-de-acero","status":"publish","type":"post","link":"https:\/\/hdcmfg.com\/es\/blogs\/4140-steel-machining\/","title":{"rendered":"Acero 4140: composici\u00f3n, caracter\u00edsticas, m\u00e9todos de procesamiento y campos de aplicaci\u00f3n"},"content":{"rendered":"

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.<\/p>\n

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\u2019s unwavering allegiance to excellence ensures an apogee of outcomes when interfacing with 4140 Steel.<\/p>\n

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.<\/p>\n

\"4140<\/p>\n

\u00bfQu\u00e9 es el acero 4140?<\/h2>\n

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.\u00a0This composite structure provides with excellent toughness, strength, and wear resistance.\u00a0The process of heat treatment, annealing and tempering, strengthens the steel for a specific use.\u00a04140 steel\u2019s 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.<\/p>\n

\u00bfC\u00f3mo se nombra el acero 4140 seg\u00fan qu\u00e9 regla?<\/h2>\n

\"4140<\/p>\n

El acero 4140 se designa seg\u00fan el sistema de clasificaci\u00f3n de acero AISI\/SAE, donde el primer d\u00edgito (4) denota una aleaci\u00f3n de molibdeno, el segundo d\u00edgito (1) indica elementos de aleaci\u00f3n adicionales como cromo y molibdeno, y los dos d\u00edgitos finales (40) especifican el contenido de carbono del acero como aproximadamente 0,40%. Esta nomenclatura proporciona una referencia r\u00e1pida a la composici\u00f3n qu\u00edmica y las propiedades del acero, destacando el uso de molibdeno para mejorar la resistencia, la tenacidad y la resistencia al desgaste, y facilitando su identificaci\u00f3n para aplicaciones que requieren materiales robustos.<\/p>\n

Composici\u00f3n qu\u00edmica del acero 4140<\/h2>\n

El acero 4140 se clasifica como un acero de bajo carbono y baja aleaci\u00f3n con buena resistencia al impacto, resistencia al desgaste, templabilidad, tenacidad estructural, fuerza y leve resistencia a la corrosi\u00f3n. Si bien es pobre en soldabilidad, debe calentarse a m\u00e1s de 800 \u00b0C si se forja. El 4140 es vers\u00e1til, como acero para herramientas natural, definitivamente se usa para herramientas y partes de m\u00e1quinas industriales sujetas a grandes cargas, como cig\u00fce\u00f1ales, ejes traseros, clips de resorte, colectores, engranajes,\u00a0direccion<\/a>\u00a0etc.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Componente<\/strong><\/td>\nPeso %<\/strong><\/td>\n<\/tr>\n
Carbono (C)<\/td>\n0,38 \u2013 0,43<\/td>\n<\/tr>\n
Hierro (Fe)<\/td>\n96.785 \u2013 97.77<\/td>\n<\/tr>\n
Cromo (Cr)<\/td>\n0,75 \u2013 1,00<\/td>\n<\/tr>\n
Manganeso (Mn)<\/td>\n0,60 \u2013 0,90<\/td>\n<\/tr>\n
Molibdeno (Mo)<\/td>\n0,15 \u2013 0,25<\/td>\n<\/tr>\n
F\u00f3sforo (P)<\/td>\n0,0 \u2013 0,035<\/td>\n<\/tr>\n
Silicio (Si)<\/td>\n0,15 \u2013 0,30<\/td>\n<\/tr>\n
Azufre (S)<\/td>\n0,0 \u2013 0,04<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

La influencia de la composici\u00f3n qu\u00edmica en las propiedades del acero 4140<\/h2>\n

\"4140<\/p>\n

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.\u00a0Carbon 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.\u00a0Having 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.<\/p>\n

Propiedades mec\u00e1nicas del acero 4140<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Propiedades mec\u00e1nicas<\/strong><\/td>\nM\u00e9trico<\/strong><\/td>\ningl\u00e9s<\/strong><\/td>\n<\/tr>\n
Resistencia a la tracci\u00f3n<\/td>\n1020 MPa<\/td>\n148000psi<\/td>\n<\/tr>\n
Resistencia a la tracci\u00f3n<\/td>\n655 MPa<\/td>\n95000psi<\/td>\n<\/tr>\n
Alargamiento a la rotura<\/td>\n17.7 %<\/td>\n17.7 %<\/td>\n<\/tr>\n
Reducci\u00f3n del \u00e1rea<\/td>\n46.8 %<\/td>\n46.8 %<\/td>\n<\/tr>\n
Dureza, Brinell<\/td>\n302<\/td>\n302<\/td>\n<\/tr>\n
Dureza, Nudo<\/td>\n328<\/td>\n328<\/td>\n<\/tr>\n
Dureza, Rockwell B<\/td>\n99<\/td>\n99<\/td>\n<\/tr>\n
Dureza, Rockwell C<\/td>\n32<\/td>\n32<\/td>\n<\/tr>\n
Dureza, Vickers<\/td>\n319<\/td>\n319<\/td>\n<\/tr>\n
M\u00f3dulo de elasticidad<\/td>\n205 GPa<\/td>\n29700 ksi<\/td>\n<\/tr>\n
M\u00f3dulo de volumen<\/td>\n160 GPa<\/td>\n23200 ksi<\/td>\n<\/tr>\n
M\u00f3dulo de corte<\/td>\n80,0 GPa<\/td>\n11600 ksi<\/td>\n<\/tr>\n
El coeficiente de Poisson<\/td>\n0.29<\/td>\n0.29<\/td>\n<\/tr>\n
maquinabilidad<\/td>\n65 %<\/td>\n65 %<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Propiedades f\u00edsicas del acero 4140<\/h2>\n

\"4140<\/p>\n\n\n\n\n\n\n\n
Propiedades f\u00edsicas<\/strong><\/td>\nValor<\/strong><\/td>\n<\/tr>\n
Densidad<\/td>\n7,85 g\/cc<\/td>\n<\/tr>\n
Punto de fusion<\/td>\n2580-2650 \u00b0F<\/td>\n<\/tr>\n
Calor especifico<\/td>\n1,13 x 10^-1 BTU\/lb-\u00b0F<\/td>\n<\/tr>\n
Conductividad t\u00e9rmica<\/td>\n296 BTU-in\/hr-ft^2-\u00b0F<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Materiales equivalentes Acero 4140<\/h2>\n\n\n\n\n\n
UE<\/strong><\/td>\nEE.UU<\/strong><\/td>\nAlemania<\/strong><\/td>\nFrancia<\/strong><\/td>\nItalia<\/strong><\/td>\nEspa\u00f1a<\/strong><\/td>\nEnterrar<\/strong><\/td>\n<\/tr>\n
ES<\/td>\n\u2013<\/td>\nDIN,WNr<\/td>\nAFNOR<\/td>\nUNI<\/td>\nUNE<\/td>\nYO ASI<\/td>\n<\/tr>\n
42CrMoS4 (1.7227)<\/td>\n4140<\/td>\n42CrMoS4<\/td>\n42CD4u<\/td>\n42CrMo4<\/td>\n40CrMo41<\/td>\n42CrMoS4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

El precio del acero 4140<\/h2>\n

\"4140<\/p>\n

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.\u00a0It depends on the steel\u2019s form (e.g., bars, plates, and sheets), size, and other operations such as heat treatment and so on.\u00a0Because 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.\u00a0Steel is priced per pound or per metric ton primarily, and cost reductions could be possible on per-unit basis for large volume purchases.\u00a0Furthermore, passing through the retailers may include shipping, handling, and other fees.<\/p>\n

\u00bfQu\u00e9 limitaciones tiene el acero 4140?<\/h2>\n

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.<\/p>\n

\"4140<\/p>\n

M\u00e9todos de procesamiento comunes utilizados para el acero 4140<\/h2>\n

The properties of 4140 steel will be improved by different methods of processing it to suit various applications.\u00a0By 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).\u00a0Normalization adds refinement to the grain structure, and thus improving toughness and uniformity come together.\u00a0Hardening, which is the process of heating and quenching followed by tempering, increases durability and resistance to wear but decreases the toughness to avoid brittleness.\u00a0Instead, the carburizing process hardens the surface for parts, where the core must be tough and outside parts must be hard.\u00a0Though fairly tough, 4140 can be machined using proper tools and conditions.\u00a0The 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.<\/p>\n

Aplicaciones del acero 4140<\/h2>\n

\"4140<\/p>\n

4140 Steel encuentra diversas aplicaciones en diversas industrias:<\/p>\n

    \n
  1. Industria automotriz:<\/strong>\u00a0Utilizado para la elaboraci\u00f3n\u00a0Espaciadores y adaptadores de ruedas<\/a>,\u00a0Tuercas de rueda<\/a>,\u00a0Guardias de bloque<\/a>,\u00a0Tapas de v\u00e1lvulas<\/a>, y\u00a0Perillas de cambio<\/a>.<\/li>\n
  2. Sector Aeroespacial:<\/strong>\u00a0Esencial en la producci\u00f3n de\u00a0Colectores de escape<\/a>,\u00a0Impulsores<\/a>,\u00a0Accesorios de tuberia<\/a>, y\u00a0Cuerpos de v\u00e1lvulas<\/a>.<\/li>\n
  3. Fabricaci\u00f3n de equipos m\u00e9dicos:<\/strong>\u00a0Empleado en la creaci\u00f3n de componentes cr\u00edticos como\u00a0Tornillos m\u00e9dicos<\/a>,\u00a0Componentes de precisi\u00f3n<\/a>, y\u00a0Carcasas de fuente de alimentaci\u00f3n para sensores m\u00e9dicos<\/a>.<\/li>\n
  4. Fabricaci\u00f3n personalizada:<\/strong>\u00a0Utilizado para\u00a0Bisagras soldadas<\/a>\u00a0y\u00a0Bisagras de bala<\/a>\u00a0en la fabricaci\u00f3n de productos personalizados.<\/li>\n
  5. Partes de motocicleta:<\/strong>\u00a0Aplicado en la fabricaci\u00f3n de\u00a0Pi\u00f1ones<\/a>,\u00a0Abrazaderas triples<\/a>,\u00a0Ruedas<\/a>,\u00a0Cubos de rueda<\/a>,\u00a0Protectores de radiador<\/a>,\u00a0Aceleradores de giro<\/a>, y\u00a0estribos<\/a>.<\/li>\n
  6. Componentes del remolque:<\/strong>\u00a0Integral a la producci\u00f3n de\u00a0Cadenas de seguridad<\/a>,\u00a0Cerraduras de paleta<\/a>,\u00a0Acopladores<\/a>,\u00a0Bolas de enganche<\/a>,\u00a0Ganchos de clavija<\/a>, y\u00a0Gatos de remolque<\/a>.<\/li>\n
  7. Accesorios para bicicletas:<\/strong>\u00a0Encontrado en\u00a0Potencias de bicicleta<\/a>,\u00a0Platos<\/a>,\u00a0Bujes de bicicleta<\/a>,\u00a0Pedales de bicicleta<\/a>, y\u00a0platos y bielas<\/a>.<\/li>\n
  8. Componentes del kart:<\/strong>\u00a0Esencial para la elaboraci\u00f3n\u00a0Pi\u00f1ones<\/a>,\u00a0espaciadores<\/a>,\u00a0Cubos de rueda<\/a>,\u00a0Aspectos<\/a>, y\u00a0Volantes<\/a>.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"

    El acero 4140 es una pieza de acero de baja aleaci\u00f3n enriquecida con cromo, molibdeno y manganeso, conocida por su calidad distintiva de alta tenacidad, alta resistencia a la torsi\u00f3n y buena resistencia a la fatiga. Esta estructura compuesta proporciona excelente tenacidad, resistencia y resistencia al desgaste.<\/p>","protected":false},"author":1,"featured_media":7490,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"4140 Steel: Composition, Characteristics, Processing Methods, and Application Fields - HDC Manufacturing","_seopress_titles_desc":"HDC is a professional custom metal parts supplier. We offer a variety of material options, including titanium alloys, stainless steel, copper, aluminum alloys, plastics, etc., to best meet your material requirements.","_seopress_robots_index":"","site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"disabled","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[343],"class_list":["post-7501","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs","tag-acf-temp"],"acf":[],"_links":{"self":[{"href":"https:\/\/hdcmfg.com\/es\/wp-json\/wp\/v2\/posts\/7501","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hdcmfg.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hdcmfg.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hdcmfg.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hdcmfg.com\/es\/wp-json\/wp\/v2\/comments?post=7501"}],"version-history":[{"count":10,"href":"https:\/\/hdcmfg.com\/es\/wp-json\/wp\/v2\/posts\/7501\/revisions"}],"predecessor-version":[{"id":107007,"href":"https:\/\/hdcmfg.com\/es\/wp-json\/wp\/v2\/posts\/7501\/revisions\/107007"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hdcmfg.com\/es\/wp-json\/wp\/v2\/media\/7490"}],"wp:attachment":[{"href":"https:\/\/hdcmfg.com\/es\/wp-json\/wp\/v2\/media?parent=7501"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hdcmfg.com\/es\/wp-json\/wp\/v2\/categories?post=7501"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hdcmfg.com\/es\/wp-json\/wp\/v2\/tags?post=7501"}],"curies":[{"name":"Gracias","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}