6063 aluminum flat bar is a medium-strength “architectural aluminum” section with an outstanding surface finish and excellent formability. It offers good corrosion resistance and takes anodizing exceptionally well, making it ideal for decorative trim, frames, and fittings. Commonly supplied in T5 and T6 tempers.
Available forms: flat bar
Common tempers: O / T5 / T52 / T6
Processing support: cutting / CNC machining / anodizing / powder coating
Quality documents: MTC report with every order
6063 Aluminum Flat Bar is produced from the standard architectural Al-Mg-Si alloy, valued for its excellent surface finish, good corrosion resistance, and outstanding anodizing response. It is normally supplied in the T5 and T6 tempers and suits decorative and light-structural applications where form and finish matter.
| Temper | Thickness (mm) | Width (mm) | Length (mm) |
|---|---|---|---|
| O / T5 / T52 / T6 | 3 – 120 | 10 – 400 | 1000 – 6000 |
Custom thickness, width, and length combinations are available on request.
| Element | 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 |
| Others (each) | 0.05 max |
| Others (total) | 0.15 max |
| Al | Remainder |
Typical properties for 6063 Aluminum Flat Bar (ASTM B221 / EN 755):
| Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%, min) |
|---|---|---|---|
| T52 | 185 | 130 | 12 |
| T6 | 240 | 215 | 12 |
Excellent anodizing and powder-coating response for decorative appearances.
Good atmospheric corrosion resistance for architectural and indoor use.
Readily welded by TIG/MIG; post-weld strength recovers after heat treatment.
Moderate strength with good formability in O and T4 tempers.
Linsy Aluminum is a Shenzhen-based supplier with more than 20 years of experience in aluminum extrusion, processing, and export. For 6063 Aluminum Flat Bar we provide:
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.
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 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.
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.
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.
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.
6063 flat bar is typically extruded and supplied in T5 or T6. T52 is used when stability after machining is important. Standard sizes can be cut to length; custom widths and thicknesses are developed on request.
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.
Yes. An MTC (EN 10204 3.1) is supplied with every order, and third-party inspection reports can be arranged.
Yes. We develop custom 6063 extrusions and offer cut-to-length, CNC machining, anodizing, and powder coating.
We work to ASTM (B221/B209/B241), EN 573/485/755, GB/T 3190/5237, and JIS H4000, among others.
Profiles and bars are bundled and wrapped; sheets are palletized with interleaving. Seaworthy export packaging is standard, with custom crating on request.
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.
