{"id":8581,"date":"2025-04-14T15:16:41","date_gmt":"2025-04-14T15:16:41","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&p=8581"},"modified":"2026-07-07T08:32:44","modified_gmt":"2026-07-07T08:32:44","slug":"alliage-daluminium-4811","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/fr\/produit\/alliage-daluminium-4811\/","title":{"rendered":"Alliage d'aluminium 4811"},"content":{"rendered":"

What Is 4811 Aluminum Alloy?<\/h2>\n

4811 aluminum alloy is a copper-bearing casting alloy characterized by high strength and good corrosion resistance. Unlike heat-treatable grades, 4811 achieves its mechanical properties through alloy content \u2014 primarily copper, zinc, and silicon \u2014 rather than precipitation hardening. This gives the alloy excellent foundry characteristics: good fluidity for filling complex mold geometries, low shrinkage tendency, and reliable machinability after casting.<\/p>\n

Because 4811 is a casting alloy, it is not supplied in standard wrought forms such as sheet, plate, or tube. Instead, it is typically delivered as casting ingot, billet for foundry remelting, or drawn into wire and filler rod for brazing and welding applications. Buyers sourcing 4811 should confirm casting process compatibility and required mechanical targets with their foundry or Linsy’s technical team before placing an order.<\/p>\n

Available 4811 Aluminum Products<\/h2>\n

Linsy supplies 4811 aluminum in casting and filler product forms. Dimensions and specifications can be tailored to your project requirements.<\/p>\n

4811 Aluminum Casting Ingot & Billet<\/h3>\n\n\n\n\n\n\n
Formulaire<\/th>\n\u00c9tat<\/th>\nDiameter \/ Size (mm)<\/th>\nLongueur (mm)<\/th>\n<\/tr>\n<\/thead>\n
4811 Casting Ingot<\/td>\nF, as-cast<\/td>\nCustom<\/td>\nCustom<\/td>\n<\/tr>\n
4811 Billet<\/td>\nF, as-cast<\/td>\n80 \u2013 300<\/td>\n500 \u2013 6000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

4811 Aluminum Wire & Brazing Filler<\/h3>\n\n\n\n\n\n
Formulaire<\/th>\n\u00c9tat<\/th>\nDiam\u00e8tre (mm)<\/th>\nLongueur<\/th>\n<\/tr>\n<\/thead>\n
4811 Wire \/ Filler Rod<\/td>\nO, drawn<\/td>\n1.0 \u2013 10.0<\/td>\nCoil or cut length<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Custom sizes, lengths, and packaging formats are available. Contact Linsy with your specification for a tailored quote.<\/p>\n

4811 Specifications & Equivalent Designations<\/h2>\n

4811 aluminum alloy is referenced under multiple national and international designation systems. Equivalent grades and applicable standards are listed below. Buyers should verify which standard their project requires before ordering.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Designation System<\/th>\nEquivalent Grade<\/th>\n<\/tr>\n<\/thead>\n
Association de l'aluminium (AA)<\/td>\nNeeds verification \u2014 4811 may not be a registered AA wrought designation<\/td>\n<\/tr>\n
UNS<\/td>\nNeeds verification<\/td>\n<\/tr>\n
EN \/ EN AW<\/td>\nNeeds verification<\/td>\n<\/tr>\n
DIN<\/td>\nNeeds verification<\/td>\n<\/tr>\n
GB \/ GB\/T<\/td>\nNeeds verification<\/td>\n<\/tr>\n
JIS<\/td>\nNeeds verification<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Note: The designation “4811” does not appear in widely referenced international wrought alloy registries (AA Teal Sheets, UNS). It may originate from a national standard, an older designation system, or an in-house classification. Linsy recommends confirming the required standard and equivalent grade with your engineering team before purchase. The equivalent table above will be updated once authoritative references are confirmed.<\/em><\/p>\n

Chemical Composition of 4811 Aluminum<\/h2>\n

The typical chemical composition of 4811 aluminum alloy, as described by the source material, is summarized below. Precise composition limits should be confirmed against the relevant standard or specification before ordering.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
\u00c9l\u00e9ment<\/th>\nNominal Range (%)<\/th>\nNote<\/th>\n<\/tr>\n<\/thead>\n
Cu (Copper)<\/td>\nPrimary alloying element<\/td>\nNeeds verification against standard<\/td>\n<\/tr>\n
Zn (Zinc)<\/td>\nSignificant<\/td>\nNeeds verification against standard<\/td>\n<\/tr>\n
Si (Silicon)<\/td>\nSignificant<\/td>\nNeeds verification against standard<\/td>\n<\/tr>\n
Fe (Iron)<\/td>\n≤ 0.5 (typical)<\/td>\nNeeds verification<\/td>\n<\/tr>\n
Mn (Manganese)<\/td>\n≤ 0.3 (typical)<\/td>\nNeeds verification<\/td>\n<\/tr>\n
Autres (chacun)<\/td>\n≤ 0.05 (typical)<\/td>\nNeeds verification<\/td>\n<\/tr>\n
Al (Aluminum)<\/td>\n\u00c9quilibre<\/td>\n—<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Exact composition limits require verification against the applicable national or international standard. The values above reflect the alloy’s described character as a copper-bearing casting alloy and should not be used as specification limits until confirmed.<\/em><\/p>\n

Mechanical Properties by Condition<\/h2>\n

Because 4811 is a non-heat-treatable casting alloy, mechanical properties depend primarily on casting method, solidification conditions, and alloy content rather than temper designation. Typical property ranges for as-cast 4811 are shown below. Actual values vary with casting process (sand cast, die cast, investment cast) and should be confirmed for each application.<\/p>\n\n\n\n\n\n
\u00c9tat<\/th>\nUltimate Tensile Strength (MPa)<\/th>\nLimite d'\u00e9lasticit\u00e9 (MPa)<\/th>\n\u00c9longation (%)<\/th>\nUtilisation typique<\/th>\n<\/tr>\n<\/thead>\n
As-cast (F)<\/td>\nNeeds verification<\/td>\nNeeds verification<\/td>\nNeeds verification<\/td>\nStructural castings, marine hardware<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Specific mechanical property values for 4811 require verification from authoritative datasheets or testing. Contact Linsy’s technical team for available test data or to arrange SGS testing on your order.<\/em><\/p>\n

Condition & Temper Selection Guide<\/h2>\n

4811 aluminum is a non-heat-treatable casting alloy. It does not respond to precipitation hardening (T-type tempers) or strain hardening (H-type tempers). The applicable conditions are:<\/p>\n\n\n\n\n\n\n
\u00c9tat<\/th>\nDescription<\/th>\nMeilleur pour<\/th>\n<\/tr>\n<\/thead>\n
F (as-fabricated \/ as-cast)<\/td>\nNo additional thermal or mechanical treatment after casting<\/td>\nGeneral casting applications where moderate strength is sufficient<\/td>\n<\/tr>\n
O (recuit)<\/td>\nAnnealed for maximum ductility and uniformity<\/td>\nApplications requiring improved ductility or stress relief<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Important:<\/strong> The original page listed “T6” and “H14” as available tempers for 4811. These temper designations apply to wrought heat-treatable and strain-hardened alloys respectively, and are not applicable to a non-heat-treatable casting alloy. They have been removed from the specification tables above. If your project requires specific temper treatment, consult Linsy’s engineering team to confirm alloy and process compatibility.<\/p>\n

Key Characteristics of 4811 Aluminum<\/h2>\n

High Strength in As-Cast Condition<\/h3>\n

4811 achieves meaningful tensile strength directly through its alloy content \u2014 primarily copper and zinc \u2014 without requiring post-casting heat treatment. This makes it suitable for structural castings where additional processing steps are impractical.<\/p>\n

Bonne r\u00e9sistance \u00e0 la corrosion<\/h3>\n

The copper-bearing composition of 4811 provides corrosion resistance that is adequate for many marine and industrial environments, though it is generally lower than dedicated marine-grade alloys such as 5083 or 5052. For critical marine applications, verify specific corrosion performance data with Linsy or request SGS testing.<\/p>\n

Excellent Foundry Properties<\/h3>\n

4811 exhibits good fluidity during casting, enabling it to fill complex mold geometries reliably. Low shrinkage and good feeding characteristics reduce the risk of porosity and incomplete fill in intricate castings.<\/p>\n

Bonne usinabilit\u00e9<\/h3>\n

After casting, 4811 can be machined with standard tooling. The alloy’s copper content supports clean chip formation and reasonable tool life, making post-cast machining operations efficient for precision features.<\/p>\n

Formabilit\u00e9 et soudabilit\u00e9<\/h3>\n

4811 is primarily a casting alloy and is not formed by rolling or extrusion into wrought shapes. For welding and brazing applications, 4811 is commonly drawn into wire or filler rod. Direct welding of 4811 castings should be evaluated carefully \u2014 the copper and zinc content can increase crack sensitivity in the weld heat-affected zone. Consult your welding engineer or Linsy’s processing team for specific joint and process recommendations.<\/p>\n

Applications courantes<\/h2>\n\n\n\n\n\n\n\n\n
Industry \/ Area<\/th>\nApplications typiques<\/th>\nWhy 4811 Is Used<\/th>\n<\/tr>\n<\/thead>\n
Casting & Foundry<\/td>\nComplex structural castings, marine hardware, pump bodies, valve components<\/td>\nGood fluidity fills intricate molds; as-cast strength eliminates need for heat treatment<\/td>\n<\/tr>\n
Welding & Brazing Filler<\/td>\nFiller wire and rod for brazing aluminum assemblies, heat exchanger joints<\/td>\nAlloy composition matches parent metal chemistry for sound brazed joints<\/td>\n<\/tr>\n
Syst\u00e8mes d'\u00e9changeurs de chaleur<\/td>\nBrazed heat exchanger fins, tube-to-header joints<\/td>\nGood brazing flow characteristics and compatible melting range<\/td>\n<\/tr>\n
General Industrial<\/td>\nMachined cast brackets, housings, gear blanks<\/td>\nAs-cast strength plus good machinability for post-cast finishing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Remarques concernant le traitement et la finition de surface<\/h2>\n

Processing options for 4811 aluminum depend on the product form and end-use requirements:<\/p>\n

    \n
  • Casting:<\/strong> 4811 is designed for foundry use. It can be sand cast, die cast, or investment cast. Casting parameters (pouring temperature, mold preheat, solidification rate) should be optimized for the specific part geometry.<\/li>\n
  • Usinage :<\/strong> Post-cast machining with standard CNC or manual tooling is practical. Copper content supports clean chip formation. Coolant is recommended for prolonged machining runs.<\/li>\n
  • Brazing:<\/strong> 4811 wire and filler rod are used in aluminum brazing operations. Ensure parent metal compatibility and proper joint clearances (typically 0.05 \u2013 0.20 mm) for capillary flow.<\/li>\n
  • Welding caution:<\/strong> Direct welding of 4811 castings carries risk of hot cracking and porosity due to the alloy’s copper and zinc content. Evaluate weldability with your welding engineer before committing to a welded design. Alternative joining methods (brazing, mechanical fastening) may be more reliable.<\/li>\n
  • Surface finishing:<\/strong> Cast surfaces can be polished, shot-blasted, or chemically cleaned. Anodizing of copper-bearing alloys produces darker tones compared to pure aluminum and may not achieve uniform decorative finishes. Functional anodizing for corrosion protection is feasible.<\/li>\n<\/ul>\n

    Documents relatifs \u00e0 la qualit\u00e9 et contr\u00f4le qualit\u00e9<\/h2>\n

    Linsy provides quality and traceability support for every 4811 aluminum order:<\/p>\n

      \n
    • MTC (Material Test Certificate):<\/strong> Issued with every order, covering chemical composition and mechanical properties as applicable.<\/li>\n
    • SGS test reports:<\/strong> Available on request for additional third-party verification, including chemical composition analysis, mechanical testing, and dimensional inspection. Additional testing cost applies.<\/li>\n
    • Dimensional inspection:<\/strong> Casting ingot and billet dimensions verified against order specifications before shipment.<\/li>\n
    • Management certifications:<\/strong> Linsy operates under ISO 9001, ISO 14001, and ISO 45001 management system standards.<\/li>\n<\/ul>\n

      Why Choose Linsy for 4811 Aluminum<\/h2>\n

      Linsy Aluminum is a Shenzhen-based aluminum factory with more than 20 years of industry experience. We supply 4811 aluminum casting ingot, billet, wire, and brazing filler to customers in foundry, heat exchanger manufacturing, and general industrial applications.<\/p>\n

      Our supply model combines inventory availability for common specifications with low-MOQ custom production for non-stock items. Typical custom lead times range from 10 to 60 days, depending on alloy, dimensions, and processing requirements. Every order includes an MTC report for quality traceability, and SGS testing is available on request.<\/p>\n

      For buyers sourcing harder-to-find casting alloys or needing both material supply and downstream processing coordination, Linsy offers a flexible and practical sourcing option across 1000\u20138000 series aluminum alloys.<\/p>\n

      Ressources connexes<\/h2>\n

      No dedicated blog articles for 4811 aluminum are currently published on the Linsy site. As supporting content becomes available, this section will link to relevant casting guides, brazing tutorials, and alloy comparison pages. For immediate technical questions, contact Linsy’s engineering team directly.<\/p>\n

      4811 Aluminum FAQ<\/h2>\n

      What is 4811 aluminum alloy?<\/h3>\n

      4811 aluminum is a copper-bearing casting alloy known for its high as-cast strength, good corrosion resistance, and excellent foundry properties. It is not heat-treatable and achieves its mechanical properties through alloy content (primarily copper, zinc, and silicon).<\/p>\n

      Is 4811 aluminum the same as 4343 aluminum?<\/h3>\n

      No. 4343 (AlSi7.5) is a silicon-based wrought filler alloy used for welding and brazing. 4811 is a copper-bearing casting alloy with different composition, properties, and application scope. The two alloys should not be confused or substituted for each other.<\/p>\n

      Can 4811 aluminum be heat treated?<\/h3>\n

      No. 4811 is a non-heat-treatable alloy. It does not respond to precipitation hardening (T-type tempers) or strain hardening (H-type tempers). Mechanical properties depend on casting method and alloy content, not post-casting thermal treatment.<\/p>\n

      What tempers are available for 4811 aluminum?<\/h3>\n

      4811 is supplied in F (as-fabricated \/ as-cast) or O (annealed) condition only. Temper designations such as T6 or H14 are not applicable to this casting alloy.<\/p>\n

      What product forms does Linsy supply for 4811?<\/h3>\n

      Linsy supplies 4811 aluminum as casting ingot, billet for foundry remelting, and wire \/ filler rod for brazing applications. 4811 is a casting alloy and is not available in standard wrought forms such as sheet, plate, or tube.<\/p>\n

      Is 4811 aluminum weldable?<\/h3>\n

      Direct welding of 4811 castings carries risk of hot cracking and porosity due to copper and zinc content. Brazing with compatible filler wire is generally more reliable. Evaluate weldability with your welding engineer for specific joint designs.<\/p>\n

      Does Linsy provide MTC for 4811 aluminum orders?<\/h3>\n

      Yes. An MTC (Material Test Certificate) is issued with every order, covering chemical composition and applicable mechanical properties. SGS test reports are also available on request for additional third-party verification.<\/p>\n

      What is the lead time for custom 4811 aluminum orders?<\/h3>\n

      Typical custom lead times range from 10 to 60 days, depending on alloy grade, dimensions, casting method, and processing requirements. Contact Linsy for a specific delivery estimate based on your order specifications.<\/p>\n

      FAQ g\u00e9n\u00e9rale sur les commandes<\/h2>\n

      Quelle est la quantit\u00e9 minimale de commande (MOQ) ?<\/h3>\n

      Linsy supports low-MOQ custom production for non-stock items. MOQ varies by product form, alloy, and processing complexity. Contact us with your specification for a tailored MOQ and pricing.<\/p>\n

      What payment methods are accepted?<\/h3>\n

      Linsy accepts T\/T (bank transfer), L\/C (letter of credit), and other methods by agreement. Payment terms are discussed during order confirmation.<\/p>\n

      Can I request a sample before placing a bulk order?<\/h3>\n

      Sample availability depends on the alloy and product form. Contact Linsy to check current sample options for 4811 aluminum.<\/p>\n

      Which countries does Linsy ship to?<\/h3>\n

      Linsy ships to customers worldwide, including Europe, Southeast Asia, the Middle East, South America, and other regions. Shipping logistics and lead times vary by destination.<\/p>","protected":false},"excerpt":{"rendered":"

      4811 aluminum alloy is a copper-bearing casting alloy known for its high strength and good corrosion resistance. It is not heat-treatable but achieves mechanical strength through its alloy content, primarily consisting of copper, zinc, and silicon. The alloy offers excellent foundry properties, good fluidity for complex castings, and reliable machinability. Linsy supplies 4811 aluminum casting ingot, wire, and brazing filler in custom sizes, with MTC reports and SGS testing available on request.<\/p>\n

      \nFormulaires disponibles :<\/strong> casting ingot \/ billet \/ wire \/ brazing filler
      \nTemp\u00e9raments courants :<\/strong> F \/ O \/ as-cast
      \nAssistance technique :<\/strong> casting \/ machining \/ brazing \/ welding filler
      \nDocuments relatifs \u00e0 la qualit\u00e9 :<\/strong> Rapport MTC fourni avec chaque commande ; rapports d'essais SGS disponibles sur demande<\/p>","protected":false},"featured_media":8588,"template":"","meta":{"_seopress_titles_title":"4811 Aluminum Alloy \u2014 Casting Ingot, Wire & Brazing Filler Supplier | Linsy Aluminum","_seopress_titles_desc":"Source 4811 aluminum casting ingot, billet, wire, and brazing filler. Copper-bearing casting alloy with high as-cast strength and good corrosion resistance. ISO 9001 certified. MTC with every order. SGS testing on request. Low MOQ.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":""},"product_brand":[],"product_cat":[87],"product_tag":[],"class_list":["post-8581","product","type-product","status-publish","has-post-thumbnail","product_cat-4000-series-aluminum-alloys","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product\/8581","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/media\/8588"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/media?parent=8581"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product_brand?post=8581"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product_cat?post=8581"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product_tag?post=8581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}