As a specialized custom magnesium extrusion manufacturer, we deliver magnesium extruded structural profiles offering the highest strength-to-weight ratio among structural metals, weighing roughly 33% less than aluminum and 75% less than steel. Engineered for demanding load-bearing applications in aerospace, automotive, and robotics, these profiles combine exceptional specific stiffness with superior vibration damping. Produced via direct hot extrusion using precision-machined dies, our profiles maintain consistent grain structures and tight dimensional tolerances for direct integration into structural assemblies.
Technical Specifications
|
Parameter |
Specification Range / Standard |
|
Available Alloy Grades |
AZ31B, AZ61A, ZK60A, AZ80A, WE43 (Rare Earth) |
|
Temper States |
F (As extruded), O, T5, H24 |
|
Extrusion Press Tonnage |
1,000T to 3,600T hydraulic direct extrusion presses |
|
Maximum Profile Circumscribing Circle |
Up to 260 mm |
|
Wall Thickness |
Minimum 1.2 mm (alloy-dependent) |
|
Dimensional Tolerances |
Per ASTM B107 / EN 755-9 standards |
|
Standard Lengths |
3,000 mm – 6,000 mm (custom cut-to-length available) |
Key Features
High Specific Strength:
Optimal strength-to-weight ratio minimizes structural dead weight in mobile and dynamic assemblies.
Vibration Damping Capacity:
Absorbs mechanical shock and dampens acoustic resonance up to 100 times better than aluminum.
Machinability:
Permits high metal removal rates at elevated cutting speeds without coolant fire hazards (when utilizing proper dry-machining protocols).
Electromagnetic Shielding:
Provides inherent EMI/RFI shielding for electronic housings and enclosures.
Materials & Options
Alloy Selection Criteria
• AZ31B: Standard structural grade; balanced strength, ductility, and corrosion resistance for general engineering.
• ZK60A: High-strength structural grade containing zirconium; optimized for high yield strength and fatigue resistance under load.
• WE43: Rare-earth alloy engineered for elevated temperature stability up to 250°C and improved creep resistance.
Surface Treatment Options
• Chromate Conversion / Conversion Coating: Base preparation for subsequent painting and bonding.
• Micro-Arc Oxidation (MAO) / Plasma Electrolytic Oxidation: Ceramic-like oxide layer providing severe wear and corrosion resistance.
• Polyester Powder Coating: High-durability finish available in standard RAL industrial colors.
Manufacturing Process
[Ingot Homogenization] → [Direct Hot Extrusion] → [Online Quenching] → [Stretching & Straightening] → [Artificial Aging (T5)] → [Precision Sawing & CNC Machining]
Billet Preparation: Cast magnesium billets undergo homogenization annealing to eliminate microsegregation.
Hot Extrusion: Billets are preheated to 350°C–450°C and forced through custom steel dies under controlled ram speeds.
Thermal Treatment: Post-extrusion artificial aging (T5 temper) precipitates fine particles to maximize tensile and yield strength.
Secondary Operations: In-house CNC milling, drilling, and deburring executed to client CAD specifications prior to surface coating.
Quality Control
Dimensional Inspection: 100% profile cross-section verification using optical profile projectors and CMM.
Mechanical Testing: Tensile strength, yield strength, and elongation tested per ASTM E8 on witness coupons from every extrusion lot.
Metallographic Analysis: Grain size and microstructural integrity verified via optical microscopy to ensure absence of internal cracking or porosity.
Corrosion Testing: Salt spray testing (ASTM B117) conducted on surface-treated samples to verify coating adhesion and barrier performance.
Traceability: Full lot traceability from raw ingot batch numbers to final packed profiles, backed by 3.1 Mill Test Certificates (MTC).
Customization & DFM Support
DFM Engineering Review:
Upload your 3D CAD models (STEP, IGES, or Parasolid formats) alongside 2D engineering drawings for direct manufacturing feasibility analysis.
Die Design:
Custom hollow and solid profile geometry development optimized for metal flow and minimal distortion.
Alloy Customization:
Specialized wrought alloy variants available for unique thermal or mechanical requirements.
Tolerances:
Precision sizing down to special industrial tolerances for direct assembly without secondary machining.
Applications
EV Battery Enclosures: Structural side rails and cooling plate frames requiring low mass and crash energy absorption.
Aerospace Interior Frames: Seat tracks and cabin partition profiles reducing total aircraft operating weight.
Robotic Arms & Automation: High-speed articulated links minimizing inertial load and actuator energy consumption.
Portable Medical Equipment: Imaging device chassis and mobility cart frames prioritizing weight reduction and rigidity.
Packaging & Delivery
Profiles interleaved with VCI paper or wrapped in sealed VCI polyethylene sleeves to prevent oxidation during transit.
Secured on moisture-free timber skids with nylon strapping to prevent bending or torsion.
FOB, CIF, or DDP supported; containerized ocean freight and air cargo logistics available globally.
FAQ
Q: What is the typical tooling lead time for a custom profile?
A: Standard extrusion die design, machining, and trial run take 15 to 25 business days from drawing approval.
Q: What is the minimum order quantity (MOQ) for custom extruded profiles?
A: MOQ is generally 300 kg per profile design or alloy run to account for press setup and extrusion stabilization.
Q: How do you prevent galvanic corrosion when joining magnesium to aluminum or steel?
A: We recommend utilizing insulating barriers (such as nylon washers, structural adhesives, or anodized/MAO surface finishes) to eliminate direct electrical contact between dissimilar metals.
Q: Can magnesium profiles be welded?
A: Yes. TIG and MIG welding are viable under a protective inert shielding gas atmosphere (argon or helium), and friction stir welding (FSW) delivers excellent joint efficiencies.
Q: Are material test reports provided with shipments?
A: Yes. 3.1 Mill Test Certificates (MTC) detailing chemical composition, tensile strength, and elongation are supplied with every production lot.
Q: What file formats are required for quotation and tooling production?
A: We accept 3D CAD models in STEP, IGES, or Parasolid formats, alongside 2D engineering drawings specifying critical dimensions and tolerances.
Request a Quote
Submit your CAD drawings, alloy specifications, and estimated annual volume to our engineering team for a technical feasibility review and commercial proposal within 24 hours.
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