Aluminium Alloys

Aluminium Alloys — Lightweight Components for Demanding Applications

We source aluminium castings in a comprehensive range of alloys, optimised for strength, corrosion resistance, machinability and thermal conductivity. Aluminium is the material of choice for weight-critical applications across the automotive, aerospace, electronics and industrial sectors.

Why aluminium?

Aluminium alloys offer an exceptional combination of low weight, high strength-to-weight ratio, excellent corrosion resistance and good thermal conductivity. This makes them ideal for a wide range of structural and functional applications.

Common aluminium casting alloys

AlSi alloys (4000 series)

Silicon-rich alloys with excellent castability and good corrosion resistance. Widely used for die castings and sand castings.

• AlSi7Mg (A356) — high strength, heat treatable
• AlSi9Cu3 (A380) — general purpose die casting
• AlSi12 (A413) — excellent fluidity, pressure-tight

AlCu alloys (2000 series)

Copper-containing alloys with high mechanical strength. Commonly used in aerospace and structural applications.

AlMg alloys (5000 series)

Magnesium-containing alloys with excellent corrosion resistance, particularly in marine environments.

Casting methods for aluminium

• Sand casting — flexible, suitable for prototypes and medium volumes
• Die casting (HPDC/LPDC) — high volumes, excellent surface finish
• Investment casting — complex geometries, tight tolerances
• Gravity die casting — good mechanical properties, medium volumes

Post-processing

We offer complete post-processing services including CNC machining, heat treatment (T6, T7), anodising, powder coating, painting and assembly.

Our experience in aluminium casting and castings from various foundries in Sweden enables us to match the right alloy to your application. We work with both traditional sand casting, gravity die casting and modern die casting methods for aluminium, depending on volume, tolerance requirements and cost efficiency. For components that require high precision, we offer subsequent CNC machining of the casting — a combination that many manufacturers in the automotive industry and the machine industry rely on to achieve optimal results.

Aluminium alloys in the 3000 series (manganese-based) and 7000 series (zinc-based) offer even higher strength when weight-critical designs require it — common in the aerospace industry and high-tech applications. We guide you through material sourcing and the casting process to ensure that the cost per part is competitive without sacrificing quality. With suppliers both in Sweden and well-proven partners, we can adapt volume, lead time and price to your needs.

Do you need to know more about design rules for castings or how to optimise your design for casting? We are happy to assist with DFM analyses (Design for Manufacturing) already at an early stage, which saves both time and money later in the product development.