Linsy A443.0 is a general-purpose aluminum-silicon (Al-Si) casting alloy renowned for its exceptional fluidity and castability. It ensures minimal porosity and is widely used in ingot form for remelting as well as for sand and permanent-mold castings. A443.0 offers good mechanical properties and superior resistance to atmospheric corrosion, making it a reliable, cost-effective material for standard components.
Available forms: ingot / die casting / sand casting / permanent-mold casting / CNC-machined cast parts
Common tempers: F (as-cast)
Processing support: CNC machining / polishing / anodizing / heat treatment
Quality documents: MTC report with every order
Linsy A443.0 is a general-purpose aluminum-silicon (Al-Si) casting alloy renowned for its exceptional fluidity and castability. It ensures minimal porosity and is widely used in ingot form for remelting as well as for sand and permanent-mold castings. A443.0 offers good mechanical properties and superior resistance to atmospheric corrosion, making it a reliable, cost-effective material for standard components.
Linsy supplies A443.0 in the forms most useful for foundries and component buyers. Standard and custom dimensions are available; contact our team for non-listed sizes.
| Form | Typical Size / Specification | Common Use |
|---|---|---|
| Ingot | Standard ingot weights; remelt stock | Foundry remelting |
| Sand casting | Per drawing | General & decorative parts |
| Permanent-mold casting | Per drawing | Structural components |
| CNC-machined casting | Tolerances per ISO 2768 | Finished parts |
The tables below list the alloy’s common commercial and standard designations. Cross-references follow widely used naming systems; verify the exact designation required for your target market.
| System | Designation |
|---|---|
| Former / trade style | A443.0 |
| AA (Aluminum Association) | A443 |
| EN | EN AC- series (market dependent) |
| ASTM | ASTM B26 / B85 (castings), B179 (ingot) |
Composition limits below follow common casting-alloy standards. Values are weight percent, balance aluminum. Confirm exact limits against your required specification.
| Element | Content (wt.%) |
|---|---|
| Si | 4.5–6.0 |
| Fe | 0.8 max |
| Cu | 0.30 max |
| Mn | 0.50 max |
| Mg | 0.05 max |
| Zn | 0.50 max |
| Others, each | 0.05 max |
| Others, total | 0.15 max |
| Al | Remainder |
The values below are typical room-temperature properties for the indicated condition and should be confirmed against mill test data for your specific casting and heat treatment. Casting method, section thickness, and cooling rate affect results.
| Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| F (as-cast) | 155–175 | 65–80 | 5.0–8.0 |
Choose the temper based on your priority between strength, ductility, and dimensional stability:
| Temper | When to Use |
|---|---|
| F (as-cast) | As-cast, no heat treatment. Best economy and dimensional stability for die and sand castings. |
Moderate silicon gives A443.0 very good filling of sand and permanent-mold molds with low porosity.
Good atmospheric corrosion resistance suits outdoor and decorative applications.
A general-purpose composition keeps cost low for standard, non-critical components.
A443.0 is normally used as-cast (F) in sand or permanent-mold processes, or as remelt ingot. It is not heat treated. Machining and finishing follow standard aluminum practice; anodizing produces a satisfactory decorative finish thanks to the moderate silicon level.
Every A443.0 shipment is delivered with an MTC (material test certificate) covering chemical composition and mechanical properties as ordered. Dimensional inspection and third-party verification (e.g. SGS report, available on request) can be arranged. Our production system is managed under ISO 9001, ISO 14001, and ISO 45001.
Linsy operates a Shenzhen-based aluminum manufacturing facility with over 20 years of experience across the 1000–8000 series and a broad range of casting grades. We support both ingot supply and finished cast components with in-house CNC machining, polishing, and anodizing.
A356 (Al-Si-Mg) is heat treatable to much higher strength and is used for structural parts. A443.0 is a lower-cost, as-cast general-purpose alloy for non-critical and decorative components.
Yes. A443.0 is commonly supplied as remelt ingot as well as finished sand or permanent-mold castings.
For standard ingot and common sand/permanent-mold castings, typical lead time is 10–60 days depending on temper, quantity, and any required machining or surface finishing. Confirm exact timing with our sales team when requesting a quote.
Yes. Every shipment is supplied with an MTC (material test certificate / inspection report) covering chemical composition and mechanical properties as ordered.
We support custom dimensions, casting method selection, heat treatment (F, T4, T5, T6 as applicable), and downstream CNC machining, polishing, and anodizing. Share your drawing or spec and we will quote against it.
Our casting alloys are produced and inspected against widely recognized standards such as ASTM B26/B85 and EN 1706. Specific designation cross-references are listed on each product page; confirm the exact standard requirement for your market when ordering.
Use the RFQ form or contact our sales team with alloy, temper, form, dimensions, quantity, and required certificates. Our engineers will respond with availability and pricing.
Linsy Advantages
Linsy Aluminum is a leading supplier of aluminum processing products, serving diverse industries including aerospace, general engineering, automotive, marine, shipbuilding and other specialized industrial applications.
We are committed to maintaining the highest standards of quality and environmental responsibility, as demonstrated by our certifications: ISO 9001:2008， ISO 14001:2004 and SGS.
