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.
Beschikbare formulieren: casting ingot / billet / wire / brazing filler
Veelvoorkomende temperamenten: F / O / as-cast
Ondersteuning bij de verwerking: casting / machining / brazing / welding filler
Kwaliteitsdocumenten: MTC report with every order, SGS test reports available on request
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 — primarily copper, zinc, and silicon — 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.
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.
Linsy supplies 4811 aluminum in casting and filler product forms. Dimensions and specifications can be tailored to your project requirements.
| Formulier | Toestand | Diameter / Size (mm) | Lengte (mm) |
|---|---|---|---|
| 4811 Casting Ingot | F, as-cast | Custom | Custom |
| 4811 Billet | F, as-cast | 80 – 300 | 500 – 6000 |
| Formulier | Toestand | Diameter (mm) | Lengte |
|---|---|---|---|
| 4811 Wire / Filler Rod | O, drawn | 1.0 – 10.0 | Coil or cut length |
Custom sizes, lengths, and packaging formats are available. Contact Linsy with your specification for a tailored quote.
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.
| Designation System | Equivalent Grade |
|---|---|
| Aluminiumvereniging (AA) | Needs verification — 4811 may not be a registered AA wrought designation |
| UNS | Needs verification |
| EN / EN AW | Needs verification |
| DIN | Needs verification |
| GB / GB/T | Needs verification |
| JIS | Needs verification |
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.
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.
| Element | Nominal Range (%) | Note |
|---|---|---|
| Cu (Copper) | Primary alloying element | Needs verification against standard |
| Zn (Zinc) | Significant | Needs verification against standard |
| Si (Silicon) | Significant | Needs verification against standard |
| Fe (Iron) | ≤ 0.5 (typical) | Needs verification |
| Mn (Manganese) | ≤ 0.3 (typical) | Needs verification |
| Overige (per stuk) | ≤ 0.05 (typical) | Needs verification |
| Al (Aluminum) | Saldo | — |
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.
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.
| Toestand | Ultimate Tensile Strength (MPa) | Opbrengststerkte (MPa) | Rek (%) | Typisch gebruik |
|---|---|---|---|---|
| As-cast (F) | Needs verification | Needs verification | Needs verification | Structural castings, marine hardware |
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.
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:
| Toestand | Beschrijving | Beste voor |
|---|---|---|
| F (as-fabricated / as-cast) | No additional thermal or mechanical treatment after casting | General casting applications where moderate strength is sufficient |
| O (gegloeid) | Annealed for maximum ductility and uniformity | Applications requiring improved ductility or stress relief |
Important: 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.
4811 achieves meaningful tensile strength directly through its alloy content — primarily copper and zinc — without requiring post-casting heat treatment. This makes it suitable for structural castings where additional processing steps are impractical.
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.
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.
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.
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 — 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.
| Industry / Area | Typische toepassingen | Why 4811 Is Used |
|---|---|---|
| Casting & Foundry | Complex structural castings, marine hardware, pump bodies, valve components | Good fluidity fills intricate molds; as-cast strength eliminates need for heat treatment |
| Welding & Brazing Filler | Filler wire and rod for brazing aluminum assemblies, heat exchanger joints | Alloy composition matches parent metal chemistry for sound brazed joints |
| Warmtewisselaarsystemen | Brazed heat exchanger fins, tube-to-header joints | Good brazing flow characteristics and compatible melting range |
| General Industrial | Machined cast brackets, housings, gear blanks | As-cast strength plus good machinability for post-cast finishing |
Processing options for 4811 aluminum depend on the product form and end-use requirements:
Linsy provides quality and traceability support for every 4811 aluminum order:
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.
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.
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 1000–8000 series aluminum alloys.
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.
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).
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.
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.
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.
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.
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.
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.
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.
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.
Linsy accepts T/T (bank transfer), L/C (letter of credit), and other methods by agreement. Payment terms are discussed during order confirmation.
Sample availability depends on the alloy and product form. Contact Linsy to check current sample options for 4811 aluminum.
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.
Linsy Voordelen
Linsy Aluminum is een toonaangevende leverancier van aluminiumverwerkingsproducten en levert aan diverse industrieën, waaronder de ruimtevaart, algemene machinebouw, automobielindustrie, scheepvaart, scheepsbouw en andere gespecialiseerde industriële toepassingen.
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