Alliage d'aluminium 6063

What Is 6063 Aluminum Alloy?

6063 is a heat-treatable aluminum-magnesium-silicon (Al-Mg-Si) alloy with low alloying content, which gives it outstanding extrudability and a clean, bright surface after anodizing. Its strength is moderate (lower than 6061), but its combination of formability, corrosion resistance, and finish quality makes it the most widely used architectural extrusion alloy worldwide.

Available 6063 Aluminum Products

6063 is produced in a broad range of extruded and rolled forms:

Formulaire	Tempéraments courants	Utilisation typique
Extruded Profile (custom & standard sections)	T5, T6, T52	Frames, railings, trim
Round / Square / Rectangular Tube	T5, T6	Structures, furniture, fixtures
Round / Flat / Square Bar	T5, T6	Handles, fittings, spacers
Angle, Channel & structural sections	T5, T6	Support and framing
Tôle et Bobine	O, T4, T5, T6	Panels, cladding, decorative

• Extruded Profile (custom & standard sections)
• Round Tube / Square Tube / Rectangular Tube
• Round Bar / Flat Bar / Square Bar
• Angle, Channel, and other structural sections
• Sheet and Coil (T4 / T5 / T6)

Spécifications et désignations équivalentes

• EN AW: EN AW-6063 (AlMg0.7Si)
• UNS : A96063
• GB/T: 6063
• JIS : A6063
• ISO: AlMg0.7Si
• ASTM: B221 (extrusion), B209 (sheet), B241 (tube/pipe)

Composition chimique

Élément	Composition (wt%)
Si	0,20 – 0,60
Fe	0.35 max
Cu	0,10 max
Mn	0,10 max
Mg	0,45 – 0,90
Cr	0,10 max
Zn	0,10 max
Ti	0,10 max
Autres (chacun)	0,05 max
Autres (total)	0,15 max
Al	Reste

Propriétés mécaniques selon le traitement thermique

Typical room-temperature properties for 6063 extrusions and wire (ASTM B221 / EN 755):

Tempérer	Résistance à la traction (MPa)	Limite d'élasticité (MPa)	Elongation (%, min)
O	90	55	25
T4	150	90	20
T5	185	145	12
T52	185	130	12
T6	240	215	12

Guide de sélection des tempéraments

• T5 — the standard as-extruded temper for most architectural profiles; good strength and finish at low cost.
• T6 — solution heat-treated and artificially aged; higher strength than T5 for structural or load-bearing sections.
• T52 — stress-relieved by stretching; best dimensional stability after machining.
• T4 — naturally aged; used for sheet and parts that will be formed before final aging.
• O — annealed; selected when maximum formability is required.

Caractéristiques principales

Extrudabilité

Highest among common 6xxx alloys — complex, thin-wall profiles are produced efficiently.

Finition de la surface

Takes anodizing and powder coating exceptionally well; bright, uniform decorative finishes.

Résistance à la corrosion

Good general atmospheric corrosion resistance; suitable for indoor and most outdoor architectural use.

Soudabilité

Readily welded by TIG/MIG; post-weld strength recovers well after heat treatment.

La force

Moderate — lower than 6061, adequate for most architectural and light structural roles.

Applications

• Window, door, and curtain-wall frames
• Handrails, balustrades, and railings
• Furniture, display, and shop-fitting profiles
• Heat sinks and LED lighting housings
• Electronics enclosures and frames
• Solar panel framing
• Decorative trim and architectural ornaments

Remarques concernant le traitement et la finition de surface

• Extrusion: 6063 is the most extrudable of the common 6xxx alloys; complex profiles are produced efficiently.
• Finition de surface : excellent response to anodizing and powder coating; a bright, decorative finish is readily achieved.
• Usinage : fair machinability; use sharp tooling and adequate coolant for T5/T6 tempers.
• Soudage : readily welded by TIG (GTAW) and MIG (GMAW); post-weld strength recovery is good after heat treatment.
• Formation : O and T4 tempers form well; T5/T6 are used as-extruded for structural shapes.

Documents relatifs à la qualité et contrôle qualité

• Mill Test Certificate (MTC / EN 10204 3.1) supplied with every order.
• Certified to ISO 9001 (quality), ISO 14001 (environment), and ISO 45001 (occupational health & safety).
• Third-party inspection reports (e.g. SGS) available on request for specific orders.
• Dimensional and surface inspection against ASTM / EN / GB specifications before shipment.

Why Choose Linsy for 6063 Aluminum

Linsy Aluminum is a Shenzhen-based supplier with more than 20 years of experience in aluminum extrusion, processing, and export. For 6063 aluminum alloy and extrusions we provide:

• Extrusion, cutting, CNC machining, anodizing, and powder-coating under one roof.
• Stable chemistry and tight dimensional tolerances per ASTM, EN, and GB standards.
• Mill Test Certificate with every shipment and third-party inspection on request.
• Flexible order quantities and custom profile development for architectural and industrial projects.

Ressources connexes

• Ultimate Guide to 6063 Aluminum Extrusions — Experts’ Tips

6063 Aluminum FAQ

À quoi sert l'aluminium 6063 ?

6063 is the standard “architectural aluminum” alloy. It is used for window and door frames, curtain walls, railings, furniture, heat sinks, electronics enclosures, and decorative trim where a high-quality surface finish and good anodizing response matter more than maximum strength.

Is 6063 heat-treatable?

Yes. 6063 is a heat-treatable 6xxx (Al-Mg-Si) alloy. It is most often used in the T5 and T6 tempers; T4 and O are available for forming and sheet applications.

6063 vs 6061 — which should I choose?

6063 extrudes more easily and anodizes better, making it ideal for architectural profiles. 6061 offers higher strength and better machinability, suiting structural and machined parts. Choose 6063 when finish and formability lead, 6061 when strength and machining lead.

What tempers are commonly stocked for 6063?

T5 and T6 are the standard extrusion tempers. T52 (stress-relieved) is used where dimensional stability after machining is important. Sheet is commonly supplied in T4, T5, and T6.

Can 6063 be anodized?

Yes. 6063 is one of the best alloys for anodizing and produces a bright, uniform, decorative oxide layer. It is also compatible with powder coating and wet painting.

Is 6063 suitable for marine environments?

6063 has good general corrosion resistance but is not a marine-grade alloy like 5083 or 6061. For continuous saltwater exposure, specify 5xxx or 6061 and confirm the anodizing/paint system with us.

FAQ générale sur les commandes

Quel est le délai de livraison habituel ?

Standard extrusion and stock shapes are usually delivered within 10–60 days depending on size, temper, and finishing. Custom profiles are quoted case by case.

Fournissez-vous des certificats d'essai en usine ?

Yes. An MTC (EN 10204 3.1) is supplied with every order, and third-party inspection reports can be arranged.

Can you supply custom profiles and sizes?

Yes. We develop custom 6063 extrusions and offer cut-to-length, CNC machining, anodizing, and powder coating.

Which standards do your products meet?

We work to ASTM (B221/B209/B241), EN 573/485/755, GB/T 3190/5237, and JIS H4000, among others.

How are products packed for export?

Profiles and bars are bundled and wrapped; sheets are palletized with interleaving. Seaworthy export packaging is standard, with custom crating on request.