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Aluminum Sizes Chart
Gauge, Pipe and Profile Dimensions

MetalFromTurkey provides this consolidated aluminum sizes chart as a single-stop reference for B2B procurement teams, project engineers and distributors. Find dimensions in both metric (mm) and imperial (inches), weight per meter data, and applicable alloy notes.

Gauge
3-30
Sheet thickness chart
OD
10-300 mm
Common round tube range
CCD
Up to 350 mm
Custom profile envelope
mm+in
Metric & imperial
Cross-market specification
ASTM+EN
Dual-standard use
Procurement-ready references
3.1
EN 10204
Mill test certificate support

How to Read Aluminum Size Charts

Standard aluminum sizes use different measurement systems depending on form and market. Understanding which system applies prevents specification errors in RFQs and purchase orders.

Gauge vs Metric vs Imperial - A Quick Primer

Gauge is a numbering system used primarily in North America for sheet and plate thickness. Lower gauge numbers mean thicker material - 12 gauge aluminum is 2.05 mm, while 20 gauge is only 0.81 mm. Gauge is not an SI unit and is not used in metric markets.

Critical

The same gauge number does NOT represent the same thickness across metals. 12 gauge aluminum (2.05 mm) is thinner than 12 gauge mild steel (2.66 mm). Always verify the metal-specific gauge table before specifying.

Metric (mm) dimensions are standard in Europe, Turkey, the Middle East, and most international markets. Tubes, pipes, angles, and profiles are dimensioned in mm across all EN standards.

Imperial (inches) dimensions are standard in North America for ASTM-designated products. NPS (Nominal Pipe Size) adds another layer - NPS 2 does not mean 2-inch OD; the actual OD is 60.3 mm (2.375 in).

Key Measurement Terms

How to Read Aluminum Size Charts: Term, Abbreviation, Applies To.

How to Read Aluminum Size Charts
TermAbbreviationApplies To
Outer DiameterODTubes, pipes
Inner DiameterIDTubes, pipes
Wall ThicknessWT or tTubes, pipes, hollow sections
Leg LengthA × A or A × BAngle bars
Web / FlangeD × BChannels
Width × ThicknessW × tFlat bars

Aluminum Sheet Gauge Thickness Chart

This aluminum gauge thickness chart converts gauge numbers to actual aluminum sheet thickness in both inches and millimeters. All values follow the American Wire Gauge (AWG) / Brown & Sharpe convention for non-ferrous metals.

Gauge-to-Thickness Conversion Table (mm and inches)

Use this table for aluminum gauge thickness in mm and aluminum gauge thickness in inches side-by-side.

Aluminum Sheet Gauge Thickness Chart: Gauge, Aluminum (inches), Aluminum (mm), Steel - for reference (inches).

Aluminum Sheet Gauge Thickness Chart
GaugeAluminum (inches)Aluminum (mm)Steel - for reference (inches)
30.22945.830.2391
40.20435.190.2242
50.18194.620.2092
60.16204.120.1943
70.14433.670.1793
80.12853.260.1644
90.11442.910.1495
100.10192.590.1345
110.09072.310.1196
120.08082.050.1046
130.07201.830.0897
140.06411.630.0747
150.05711.450.0673
160.05081.290.0598
170.04531.150.0538
180.04031.020.0478
190.03590.910.0418
200.03200.810.0359
210.02850.720.0329
220.02530.640.0299
230.02260.570.0269
240.02010.510.0239
250.01790.460.0209
260.01590.400.0179
270.01420.360.0164
280.01260.320.0149
290.01130.290.0135
300.01000.250.0120

This aluminum sheet thickness chart data is based on ASTM B209 (US) and EN 485 (Europe). Standard sheet sizes include 1220 × 2440 mm (4 ft × 8 ft) and 1525 × 3050 mm (5 ft × 10 ft).

Common Applications by Gauge Range

Aluminum Sheet Gauge Thickness Chart: Gauge Range, Thickness (mm), Typical Applications.

Aluminum Sheet Gauge Thickness Chart
Gauge RangeThickness (mm)Typical Applications
3-102.6-5.8 mmStructural plate, heavy-duty fabrication, pressure vessels
11-161.3-2.3 mmEnclosures, cabinets, machine guards, HVAC panels
17-220.6-1.2 mmAutomotive body panels, decorative trim, light covers
23-300.3-0.6 mmFoil-grade, packaging, insulation jacketing, electronics

Aluminum Pipe & Tube Sizes

This section covers the most commonly referenced aluminum pipe sizes chart data and aluminum tube sizes for round, square, and rectangular profiles.

Round Pipe & Tube Sizes (OD × WT)

Aluminum round tubes are available from Ø6 mm to Ø300 mm OD, with wall thicknesses ranging from 1.0 mm to 10.0 mm depending on outer diameter and alloy. Common alloys include 6060, 6061-T6, and 6063-T5/T6.

Aluminum Pipe & Tube Sizes: OD (mm), Common Wall Thicknesses (mm), Weight Range (kg/m), Standard Alloys.

Aluminum Pipe & Tube Sizes
OD (mm)Common Wall Thicknesses (mm)Weight Range (kg/m)Standard Alloys
101.0, 1.5, 2.00.08-0.146060, 6063
151.0, 1.5, 2.00.12-0.226060, 6063
201.0, 1.5, 2.0, 2.50.16-0.376060, 6063
251.5, 2.0, 2.5, 3.00.30-0.566060, 6061, 6063
301.5, 2.0, 2.5, 3.00.36-0.696060, 6061, 6063
402.0, 2.5, 3.0, 4.00.65-1.236060, 6061, 6063
502.0, 2.5, 3.0, 4.0, 5.00.82-1.926060, 6061, 6063
602.0, 3.0, 4.0, 5.00.99-2.346060, 6061, 6063
752.0, 3.0, 4.0, 5.01.24-2.986061, 6063
802.0, 3.0, 4.0, 5.01.33-3.196061, 6063
1002.0, 3.0, 4.0, 5.0, 6.01.67-4.806061, 6063
1203.0, 4.0, 5.0, 6.0, 8.02.99-7.636061, 6063
1503.0, 4.0, 5.0, 6.0, 8.0, 10.03.76-11.936061, 6063
2004.0, 5.0, 6.0, 8.0, 10.06.67-16.186061, 6063
2505.0, 6.0, 8.0, 10.010.43-20.426061
3005.0, 6.0, 8.0, 10.012.56-24.666061

Standards: EN 755-7 (seamless/die extruded), EN 755-8 (porthole extruded), ASTM B221 (extruded), ASTM B210 (drawn seamless), ASTM B241 (seamless pipe). View aluminum round tubes and pipes from MetalFromTurkey →

Square & Rectangular Tube Sizes

The aluminum square tube sizes below cover standard hollow sections extruded in alloys 6060, 6061-T6, and 6063-T5/T6. Dimensions conform to EN 755-9 tolerances.

Square Tubes

Aluminum Pipe & Tube Sizes: Size A × A (mm), Common WT (mm), Weight (kg/m), Alloys.

Aluminum Pipe & Tube Sizes
Size A × A (mm)Common WT (mm)Weight (kg/m)Alloys
15 × 151.0, 1.50.15, 0.226060, 6063
20 × 201.5, 2.00.30, 0.396060, 6063
25 × 251.5, 2.0, 2.50.38, 0.50, 0.616060, 6061, 6063
30 × 302.0, 2.5, 3.00.61, 0.75, 0.886060, 6061, 6063
40 × 402.0, 2.5, 3.0, 4.00.82, 1.02, 1.20, 1.566060, 6061, 6063
50 × 502.0, 3.0, 4.0, 5.01.04, 1.53, 2.00, 2.446061, 6063
60 × 602.0, 3.0, 4.0, 5.01.26, 1.85, 2.43, 2.986061, 6063
80 × 803.0, 4.0, 5.0, 6.02.50, 3.29, 4.06, 4.816061, 6063
100 × 1003.0, 4.0, 5.0, 6.03.15, 4.16, 5.14, 6.106061, 6063
120 × 1204.0, 5.0, 6.05.02, 6.22, 7.396061
150 × 1505.0, 6.0, 8.07.86, 9.37, 12.346061
200 × 2005.0, 6.0, 8.0, 10.010.57, 12.63, 16.63, 20.576061

Rectangular Tubes

Aluminum Pipe & Tube Sizes: Size A × B (mm), Common WT (mm), Weight (kg/m), Alloys.

Aluminum Pipe & Tube Sizes
Size A × B (mm)Common WT (mm)Weight (kg/m)Alloys
40 × 202.0, 2.5, 3.00.61, 0.75, 0.886060, 6061, 6063
50 × 252.0, 3.00.77, 1.126061, 6063
50 × 302.0, 2.5, 3.00.82, 1.02, 1.206061, 6063
60 × 302.0, 3.0, 4.00.93, 1.37, 1.786061, 6063
60 × 402.0, 3.0, 4.01.04, 1.53, 2.006061, 6063
80 × 402.0, 3.0, 4.0, 5.01.26, 1.85, 2.43, 2.986061, 6063
100 × 503.0, 4.0, 5.02.34, 3.08, 3.806061, 6063
100 × 603.0, 4.0, 5.0, 6.02.50, 3.29, 4.06, 4.816061, 6063
120 × 603.0, 4.0, 5.02.83, 3.72, 4.606061, 6063
150 × 1003.0, 4.0, 5.0, 6.03.97, 5.23, 6.48, 7.716061
200 × 1004.0, 5.0, 6.0, 8.06.31, 7.84, 9.34, 12.296061
300 × 1005.0, 6.0, 8.010.57, 12.63, 16.636061

View square and rectangular aluminum tubes from MetalFromTurkey →

Pipe vs Tube: How Sizing Standards Differ

Aluminum Pipe & Tube Sizes: Pipe (NPS-based), Tube (OD × WT).

Aluminum Pipe & Tube Sizes
Pipe (NPS-based)Tube (OD × WT)
Sizing basisNominal Pipe Size (NPS) + ScheduleExact outer diameter × exact wall thickness
TolerancesWider - designed for flow applicationsTighter - structural and precision use
Key standardsASTM B241, EN 755-7/8ASTM B210, B221, B483, EN 755-7/8
Primary useFluid and gas transportStructural, mechanical, heat exchangers

Common NPS-to-OD Reference

Aluminum Pipe & Tube Sizes: NPS, DN (mm), Actual OD (mm), Actual OD (in).

Aluminum Pipe & Tube Sizes
NPSDN (mm)Actual OD (mm)Actual OD (in)
1/21521.30.840
3/42026.71.050
12533.41.315
1-1/24048.31.900
25060.32.375
38088.93.500
4100114.34.500
6150168.36.625
8200219.18.625
10250273.010.750
12300323.812.750

Specification rule

For NPS ≤ 12, the nominal size does NOT equal the actual outer diameter. For NPS ≥ 14, the nominal pipe size equals OD in inches.

Need the right OD and wall combination?

Send the service application, alloy, and required dimensions. We can confirm whether you should buy aluminum as pipe, tube, or a custom hollow profile before the RFQ is released.

Aluminum Angle & Flat Bar Sizes

This section covers standard aluminum angle sizes and flat bar dimensions available from Turkish mill production.

Equal-Leg Angle Bar Dimensions

Equal-leg aluminum angle bars are extruded in 6060, 6061-T6, and 6063-T5/T6. Structural applications typically require 6061-T6 per ASTM B308.

Aluminum Angle & Flat Bar Sizes: Size A × A (mm), Thickness (mm), Weight (kg/m), Alloys.

Aluminum Angle & Flat Bar Sizes
Size A × A (mm)Thickness (mm)Weight (kg/m)Alloys
20 × 202, 30.21, 0.306060, 6063
25 × 252, 30.26, 0.386060, 6063
30 × 302, 3, 40.31, 0.46, 0.616060, 6061, 6063
40 × 403, 4, 50.63, 0.82, 1.026060, 6061, 6063
50 × 503, 4, 5, 60.79, 1.04, 1.29, 1.536061, 6063
60 × 604, 5, 6, 81.26, 1.56, 1.85, 2.436061, 6063
70 × 705, 6, 7, 81.83, 2.18, 2.52, 2.866061, 6063
80 × 805, 6, 8, 102.10, 2.50, 3.30, 4.066061, 6063
100 × 1006, 8, 10, 123.15, 4.16, 5.15, 6.116061
120 × 1208, 10, 125.03, 6.23, 7.416061
150 × 15010, 12, 157.86, 9.37, 11.576061

Standards: EN 755-9 (tolerances), ASTM B308 (6061-T6 structural angles), ASTM B221 (extruded). Unequal-leg angles are also available from 30 × 20 mm up to 150 × 100 mm. Contact our sourcing team for the full unequal-leg angle size list.

View aluminum angle and flat bars from MetalFromTurkey →

Flat Bar Width and Thickness Chart

Aluminum Angle & Flat Bar Sizes: Width (mm), Common Thicknesses (mm), Weight Range (kg/m), Alloys.

Aluminum Angle & Flat Bar Sizes
Width (mm)Common Thicknesses (mm)Weight Range (kg/m)Alloys
203, 4, 5, 60.16-0.336060, 6063
303, 4, 5, 6, 80.24-0.656060, 6061, 6063
403, 5, 6, 8, 100.33-1.086060, 6061, 6063
503, 5, 6, 8, 100.41-1.366061, 6063
605, 6, 8, 100.81-1.636061, 6063
805, 6, 8, 10, 121.08-2.606061, 6063
1005, 6, 8, 10, 15, 201.36-5.426061, 6082
1508, 10, 15, 20, 253.25-10.166061, 6082
20010, 15, 20, 25, 305.42-16.266061, 6082
30010, 15, 20, 258.13-20.336061

Standards: EN 755-5 (flat bar tolerances), ASTM B221.

Aluminum Channel Sizes

Standard C-Channel Dimensions (ASTM / EN)

Structural aluminum C-channels are primarily specified per ASTM B308 in 6061-T6. The sizes below follow the Aluminum Association standard designations.

Aluminum Channel Sizes: Depth × Flange (in), Depth × Flange (mm), Web t (in), Flange t (in), Weight (lb/ft), Weight (kg/m).

Aluminum Channel Sizes
Depth × Flange (in)Depth × Flange (mm)Web t (in)Flange t (in)Weight (lb/ft)Weight (kg/m)
2.00 × 1.0050.8 × 25.40.130.130.580.86
3.00 × 1.5076.2 × 38.10.170.261.141.69
4.00 × 1.72101.6 × 43.70.300.322.503.72
5.00 × 1.75127.0 × 44.50.320.192.323.45
6.00 × 1.92152.4 × 48.80.340.202.834.21
6.00 × 2.16152.4 × 54.90.340.444.486.67
7.00 × 2.09177.8 × 53.10.370.213.385.03
8.00 × 2.29203.2 × 58.20.390.254.256.33
10.00 × 2.60254.0 × 66.00.440.245.287.86
12.00 × 2.96304.8 × 75.20.500.307.4111.03

Standards: ASTM B308 (6061-T6 structural shapes), ASTM B221 (extruded), EN 755-9 (general profile tolerances). European and international markets use metric profile designations - contact our sourcing team for EN-equivalent U-channel profiles from Turkish mills.

Aluminum Profile & Extrusion Dimensions

Beyond standard sections, aluminum profile sizes extend to custom cross-sections produced through extrusion dies.

Common Standard Profile Cross-Sections

Turkish mills extrude a range of standard and non-standard profiles in alloys 6060, 6061, 6063, and 6082.

Aluminum Profile & Extrusion Dimensions: Profile Type, Common Sizes, Alloys, Standard.

Aluminum Profile & Extrusion Dimensions
Profile TypeCommon SizesAlloysStandard
Equal Angle (L)20×20×2 to 150×150×15 mm6060, 6061, 6063EN 755-9, ASTM B221
Unequal Angle30×20×3 to 150×100×12 mm6061, 6063EN 755-9, ASTM B221
T-bar20×20×2 to 80×80×8 mm6060, 6063EN 755-9
U-Channel10×10×1.5 to 100×50×5 mm6060, 6063EN 755-9
Round BarØ6-320 mm6060, 6061, 6082EN 755-3
Square Bar6×6-100×100 mm6061EN 755-4
Flat Bar10-300 mm wide6060, 6061, 6063, 6082EN 755-5
Custom ProfileCCD up to 350 mmProject-basedEN 12020-2, EN 755-9

Custom Extrusion - What Dimensions Are Possible?

Custom aluminum profiles are defined by the Circumscribing Circle Diameter (CCD) - the smallest circle that can fully enclose the profile cross-section. Turkish extrusion presses support CCDs up to approximately 350 mm. Minimum wall thickness is typically 1.0-1.5 mm, depending on alloy and profile complexity.

Precision profile note

Precision profiles per EN 12020 (tighter tolerances, approximately 0.7× of EN 755-9 tolerances) are available for alloys 6060 and 6063 only.

Need a custom profile evaluated?

Send your drawing or extrusion outline with the required CCD, alloy, and tolerance target. We can quickly assess feasibility and lead time.

View aluminum extrusion profiles from MetalFromTurkey →

Alloy Selection and How It Affects Available Sizes

Not every alloy is available in every product form. The table below shows which alloys are commonly produced by Turkish mills for each product type.

Size Availability by Alloy

Alloy Selection and How It Affects Available Sizes: Product Form, 6060, 6061, 6063, 6082, 5083.

Alloy Selection and How It Affects Available Sizes
Product Form60606061606360825083
Sheet / Plate--
Round Tube / Pipe-
Square Tube--
Rectangular Tube--
Angle Bar--
Flat Bar-
C-Channel (structural)---
Extrusion Profile-

Quick Alloy Selection Guide

  • 6063-T5/T6 - Best surface quality, preferred for architectural and anodized applications. Most common extrusion alloy globally.
  • 6061-T6 - Highest strength in the 6xxx series for general structural use (UTS ≥ 290 MPa min). Dominant in North American markets.
  • 6060-T5/T6 - European architectural standard, very similar to 6063 with slightly lower strength.
  • 6082-T6 - Strongest 6xxx structural alloy (UTS ≥ 310 MPa min). European structural preference for higher-load applications.
  • 5083-H116 - Marine and corrosive environments. Not heat-treatable. Not suitable for service above 65 °C.

For a detailed alloy comparison, see our 6061 vs 6063 vs 6082 aluminum guide.

Need help selecting the right alloy?

Send your project requirements - dimensions, finish target, service environment, and applicable standard. We can recommend the best alloy and form for your application.

Sourcing Aluminum Products from Turkey

Turkey's aluminum extrusion industry produces over 600,000 tonnes annually, with EN and ASTM dual-compliance capability that serves both European and North American specification requirements.

MetalFromTurkey coordinates aluminum sourcing across multiple ISO 9001-certified partner mills in Turkey. This multi-mill approach allows buyers to access a broader size range than any single factory catalog - from standard profiles to custom extrusions with CCDs up to 350 mm.

Why B2B Buyers Use Consolidated Size References

Procurement teams comparing aluminum products across suppliers need dimensional data in one place - particularly when working across metric and imperial specification environments. This reference page supports that workflow, linking each size category to the relevant aluminum product pages where specific alloys, tolerances, and documentation packages are detailed.

All shipments through MetalFromTurkey include EN 10204 3.1 Mill Test Certificates. Third-party inspection can be arranged before dispatch upon request.

Ready to source your aluminum specification?

Share your sizes, alloy, and quantity. We can provide a quotation with lead time and delivery cost. Use this chart as the dimensional reference in your RFQ.

How to Calculate Aluminum Weight Per Meter

Use the formulas below with dimensions in mm. All outputs are in kg/m. The standard aluminum density used is 2.71 g/cm³.

How to Calculate Aluminum Weight Per Meter: Product Form, Formula.

How to Calculate Aluminum Weight Per Meter
Product FormFormula
Round TubeW = π × (OD - t) × t × 0.00271
Square TubeW = 4 × (A - t) × t × 0.00271
Rectangular TubeW = 2 × (A + B - 2t) × t × 0.00271
Equal-Leg AngleW = (2A - t) × t × 0.00271
Flat BarW = Width × Thickness × 0.00271
Round Bar (solid)W = (π/4) × D² × 0.00271
Sheet (per m²)W = Thickness (mm) × 2.71 kg/m²

Example: A 50 × 50 × 3 mm square tube weighs 4 × (50 - 3) × 3 × 0.00271 = 1.53 kg/m.

Density note

Actual alloy density varies slightly - 6063 is 2.69 g/cm³, 6061 is 2.70, and 5083 is 2.66. The value 2.71 is the industry-standard reference used across all weight calculations.

Need an Aluminum
Size Confirmed?

Send your sizes, alloy, quantity, and finish target. We will confirm standard mill availability or review a custom extrusion route before you issue the order.

Metric and imperial specification support
EN and ASTM standard sourcing
ISO 9001-certified Turkish mills
Email your RFQ directly
sales@metalfromturkey.com
Request an aluminum quotation
Use the details field to specify finish requirements, ASTM vs EN standard path, tolerance class, machining or fabrication needs, and service environment.

Sık Sorulan Sorular

What size does aluminum come in?

Aluminum sizes vary by product form. Sheet and plate range from approximately 0.14 mm (gauge 35) to over 200 mm thick. Round tubes span Ø6-300 mm outside diameter. Square tubes range from 10×10 to 200×200 mm. Angle bars cover 20×20 to 150×150 mm equal-leg. Extrusion profiles are custom-produced based on die design, with circumscribing circle diameters up to 350 mm.

Which is thicker - 16 gauge or 18 gauge aluminum?

16 gauge aluminum is thicker. At 1.29 mm (0.0508 inches), 16 gauge is approximately 26% thicker than 18 gauge at 1.02 mm (0.0403 inches). In the gauge system, lower numbers always indicate thicker material.

What is 12 gauge aluminum thickness in mm?

12 gauge aluminum is approximately 2.05 mm (0.0808 inches). This thickness is commonly used for heavy-duty enclosures, structural panels, and industrial fabrication.

What is the difference between aluminum pipe sizes and tube sizes?

Aluminum pipe is dimensioned by Nominal Pipe Size (NPS) with schedule-based wall thickness - designed for fluid and gas transport with wider tolerances. Aluminum tube is specified by exact outer diameter and wall thickness with tighter tolerances - used for structural, mechanical, and heat exchanger applications. For example, NPS 2 pipe has an actual OD of 60.3 mm, while a Ø60 tube means exactly 60.0 mm OD.

How do I calculate aluminum weight per meter?

Multiply the cross-sectional area in cm² by the aluminum density of 2.71 g/cm³ and the length of 100 cm, then divide by 1000 for kg/m. For round tubes, the simplified formula is W = π × (OD - wall thickness) × wall thickness × 0.00271, where both OD and wall thickness are in mm.

Can I source all these sizes from Turkey?

Turkey produces the majority of these standard sizes through ISO 9001-certified extrusion mills serving both EN and ASTM markets. Custom profiles with CCDs up to 350 mm are also available. Non-standard alloy and dimension combinations should still be confirmed at quotation stage for lead time and MOQ.

Need Aluminum Sizes Matched to Your Drawing?
Send alloy, dimensions, and quantity.

We can confirm the closest mill size, tolerance path, and documentation package before you issue the order. All shipments include EN 10204 3.1 mill test certificates.

Metric and imperial size reviewTube, angle, bar, channel, and profile guidanceTurkey mill sourcing with EN and ASTM support
sales@metalfromturkey.com
Üçevler Mah. İzmiryolu Cad. Westpoint İş Merkezi D Blok Kat:6 Ofis:118 No:241D Nilüfer BURSA / Türkiye
+90 543 928 19 76
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