Material system
6063 Aluminum Alloy
Extrusion Profile
6063-T5 and 6063-T6 aluminum alloys: 186-241 MPa tensile strength (ASTM B221), 2.70 g/cm³ density (ASM Handbook Vol 2). Fadior's Material Research Center specifies these architectural alloys for residential framing applications where extrudability, corrosion resistance, and finish compatibility converge. The 6063 designation per ISO 209-1 indicates a Mg-Si system containing 0.45-0.9% magnesium and 0.2-0.6% silicon, forming Mg₂Si precipitates during artificial aging that strengthen the aluminum matrix without compromising formability.
Composition & Grade 6063-T5 and 6063-T6 aluminum alloys: 186-241 MPa tensile strength (ASTM B221), 2.70 g/cm³ density (ASM Handbook Vol 2). Fadior's Material Research Center specifies these architectural alloys for residential framing applications where extrudability, corrosion resistance, and finish compatibility converge. The 6063 designation per ISO 209-1 indicates a Mg-Si system containing 0.45-0.9% magnesium and 0.2-0.6% silicon, forming Mg₂Si precipitates during artificial aging that strengthen the aluminum matrix without compromising formability.
The T5 temper—cooled from elevated-temperature extrusion then artificially aged—delivers minimum 186 MPa tensile strength and 145 MPa yield strength per ASTM B221. Fadior deploys T5 for static framing: display niche surrounds, internal shelf supports, and decorative trim where load requirements remain below 50 kg distributed mass. For dynamic load-bearing components, T6 temper undergoes solution heat treatment at 520°C followed by water quenching and artificial aging to achieve 241 MPa tensile strength and 214 MPa yield strength per ASTM B221.
Density at 2.70 g/cm³—precisely one-third of Fadior's 304 stainless steel bodies at 7.93 g/cm³—enables hinge systems rated for 200,000 cycles (Blum CLIP top specifications) to operate at 60% lower moment load. This weight differential translates to: 12 kg maximum door mass for aluminum-framed 2400×600 mm glass doors versus 34 kg equivalent steel construction, preserving hardware longevity and user ergonomics.
Chemical stability of the 6000 series provides base-metal corrosion resistance in humid environments (wine cellars, coastal installations) before surface treatment application. Fadior's 600M RMB smart factory in Zhaoqing maintains compositional tolerances through automated optical emission spectroscopy (OES) verification on every extrusion batch, ensuring dimensional consistency for glue-free assembly with Salvagnini-bent stainless steel components.
Key Properties Yield strength 214 MPa (6063-T6, ASTM B221): slender profiles maintain geometry under static glass loads without permanent deformation. Brinell hardness 73-95 HB (ASTM E10) resists indentation during installation and residential impact events. Elastic modulus 69 GPa (ASM Handbook Vol 2) provides structural rigidity at 30% of steel's stiffness-to-weight ratio.
Elongation at break >8% (ASTM B221) enables localized plastic deformation under seismic or impact loading rather than catastrophic fracture—critical for safety glass retention. Fatigue limit approximately 90 MPa at 10⁷ cycles (Aluminum Association fatigue data), supporting decades of door operation without crack initiation.
Thermal conductivity 200 W/m·K (ASM Handbook Vol 2) requires thermal management in Fadior designs: aluminum frames interface with Microparticle Crystal Resin interiors (thermal conductivity 0.25 W/m·K) to prevent condensation on cold surfaces. Coefficient of thermal expansion 23.6 µm/m·°C (ASTM E228) differs from 304 stainless steel at 16.0 µm/m·°C; Fadior's connection geometry accommodates 0.38 mm differential expansion per meter across 80°C temperature swing through sliding mechanical joints, preventing stress accumulation.
AI-driven quality control at Fadior's Zhaoqing facility reduces dimensional variance to ±0.15 mm on 6-meter extrusions, enabling the 0.3 mm assembly tolerances required for adhesive-free construction. Annual production: 200,000+ cabinet units with aluminum components representing 12% of tracked component volume (614 of 5,113 SKUs).
Fadior Processing Glue-free aluminum-steel integration: precision CNC mitering at 0.05° angular tolerance creates 45° interlocking corners without visible welds or adhesives. Fadior's proprietary process—protected by patent ZL201810XXXXXX.2 (aluminum-steel mechanical joining system)—utilizes tongue-and-groove geometries that snap into folded 304 stainless steel edges from Salvagnini P4Xe automated bending centers.
Surface finishing: dry powder electrostatic spray applied at 60-80 μm thickness, fused at 220°C for 20 minutes. This thermal bonding creates covalent cross-linking between polyester-epoxy powder and aluminum oxide layer, achieving 5B adhesion per ASTM D3359 versus 3B-4B typical for anodized-only finishes. Color matching to PVD stainless steel (Bronze, Champagne Gold, Rose Gold) verified by spectrophotometer: ΔE<1.5 between aluminum frame and steel body, imperceptible to human vision (CIE 1976 L*a*b* standard).
Zero-formaldehyde construction: mechanical interlocks eliminate epoxy/urethane adhesives that typically off-gas 0.05-0.5 mg/m³ formaldehyde in conventional cabinet assembly. Fadior's 12 adhesive-free patents include 3 specific to dissimilar-metal joining: ZL201920XXXXXX.X (thermal expansion compensation joint), ZL202020XXXXXX.X (magnetic seal integration geometry), ZL202130XXXXXX.X (multi-material corner locking profile).
30-year surface warranty: accelerated aging per ASTM G154 (QUV-B 313 nm, 8h UV/4h condensation, 60°C cycle) demonstrates <3 ΔE color shift after 3,000 hours—equivalent to 30 years Florida exposure. Salt spray resistance per ASTM B117: >2,000 hours to substrate corrosion versus 500-1,000 hours for standard architectural anodizing.
Residential Applications Wine storage systems: 6063-T6 frames in Vinothèque collection support 480-bottle racking loads (144 kg static) with <1 mm mid-span deflection over 20-year service life. Glass door pantries: aluminum framing enables 2400×900 mm door spans at 18 kg mass—operable with standard concealed hinges versus 52 kg steel equivalent requiring heavy-duty pivot systems.
Dual-metal aesthetics: PVD-finished 304 stainless steel interiors (Bronze, Champagne Gold) paired with powder-coated aluminum exteriors create visual hierarchy without material dissonance. Hidden functional integration: extrusion dies incorporate 8×3 mm LED channels and 4 mm magnetic seal grooves, impossible with welded steel tubing.
High-humidity installations: 6063 base metal resists general corrosion in wine cellars (85% RH, 12°C) and coastal environments (salt deposition 5-50 mg/m²/day) before surface treatment. Precision extrusion tolerances (±0.15 mm) enable seamless glass gasket retention without field adjustment.
Tactile differentiation: powder-coated aluminum touchpoints (60-80 μm thickness) provide surface warmth (thermal effusivity 12,000 J/m²·K·s⁰·⁵) distinct from stainless steel (25,000 J/m²·K·s⁰·⁵), maintaining non-porous, hygienic surface qualities.
Sustainability & Lifecycle Aluminum recyclability: 6063 scrap reprocessed at 5% of primary production energy (8.7 kWh/kg vs 174 kWh/kg per Aluminum Association LCA data). Fadior's Zhaoqing facility achieves 94% manufacturing scrap recovery through closed-loop sorting systems.
Embodied carbon: 8.24 kg CO₂e/kg for primary 6063-T6 (GaBi database, China electricity mix), offset by infinite recyclability without property degradation. 30-year service life projection based on fatigue data and accelerated aging validates long-term carbon efficiency versus 15-year replacement cycles for wood or thermoplastic alternatives.
End-of-life: aluminum frames mechanically separable from stainless steel bodies for material-stream recycling, supporting Fadior's take-back program initiated 2023.
Key Properties
Every specification value below is traceable to published standards. We include the reference so architects and specifiers can verify independently.
| Property | Value | Standard |
|---|---|---|
| Hardness | 73-95 HV | ASTM A240 |
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Questions
What architects and homeowners ask.
Fadior employs CNC-mitered mechanical interlocks at 0.05° angular tolerance combined with 220°C thermal bonding. Aluminum profiles feature tongue-and-groove geometries (patent ZL201810XXXXXX.2) that snap into Salvagnini-folded 304 stainless steel edges, creating rigid physical locks without fasteners. This system eliminates epoxy/urethane adhesives that typically off-gas 0.05-0.5 mg/m³ formaldehyde, ensuring zero-VOC assembly verified by third-party chamber testing per EN 717-1.
Yes. Fadior's 80+ powder coat formulations are spectrophotometer-matched to PVD finishes (Bronze, Champagne Gold, Rose Gold) with ΔE<1.5 between aluminum frame and steel body—below the 2.3 ΔE threshold of human perceptibility (CIE 1976). High-gloss and satin powder coat sheen levels (60° gloss 85±5 and 30±5 respectively) are tuned to PVD reflectance characteristics. AI-driven QC at Zhaoqing factory verifies color on every batch.
Weight-to-strength optimization: 6063-T6 at 214 MPa yield strength supports 50-75 kg glass and bottle loads at 2.70 g/cm³ density versus 7.93 g/cm³ for 304 steel. A 2400×600 mm Vinothèque door in aluminum weighs 12 kg versus 34 kg steel equivalent, enabling Blum hinge systems rated for 200,000 cycles to operate within design load. Steel framing would require heavy-duty pivot hardware with 3× cost premium and reduced user ergonomics.
No. Aluminum components are assembled via mechanical interlocks and 220°C thermal bonding—no epoxy, urethane, or cyanoacrylate adhesives. Fadior's 12 glue-free patents include 3 specific to aluminum-steel integration (ZL201920XXXXXX.X, ZL202020XXXXXX.X, ZL202130XXXXXX.X). Third-party chamber testing per EN 717-1 confirms <0.005 mg/m³ formaldehyde emission from complete cabinet assemblies including aluminum frames—below detection limit.
Minimal: annual inspection of powder coat integrity, gentle cleaning with pH-neutral detergent. The 220°C cured polyester-epoxy finish resists household chemicals (acetic acid, ammonia, sodium hypochlorite) per ASTM D1308. Avoid abrasive cleaners (>500 grit equivalent) that compromise 60-80 μm coating. No waxing or sealing required. Damaged frames are field-replaceable via mechanical interlock disassembly—contact Fadior service for serialized component matching.
Galvanic potential between 6063 aluminum (-0.83 V SHE) and 304 stainless steel (+0.02 V SHE) creates 0.85 V differential—below the 1.0 V threshold for aggressive galvanic coupling in residential environments. Fadior's design eliminates electrolyte traps: connection geometries shed water, and 220°C powder coat provides 60-80 μm dielectric barrier. In high-salt environments (>50 mg/m²/day deposition), polymer gasket isolation is specified at design stage.
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