1. Standard Aluminum I-Beam Size Range
– Typical height (H) ranges from about 20 mm to 300 mm, covering small profiles to structural use.
– Flange width (B) ranges from about 20 mm to 150 mm.
– Web thickness (tw) is about 2 mm to 8 mm.
– Flange thickness (tf) is about 2 mm to 10 mm, depending on load requirements.
– Common lengths are 3 m, 4 m, and 6 m; cutting to length or delivering custom sizes is available (Custom Aluminum I-Beam Sizes).
Note: Different manufacturers and applications may have variations. Use the manufacturer’s size chart as the authority. For more aluminum profiles information, please visit our Aluminum Profile page.
2. Common Models and Size Ranges
Example reference (for selection only):
– Mini: H 20–40 mm, B 20–30 mm, web thickness ~2–3 mm — lightweight guide rails, decorative supports.
– Medium: H 60–120 mm, B 40–80 mm, web thickness 3–6 mm — medium structural supports, frames.
– Heavy: H 150–300 mm, B 80–150 mm, web thickness 5–8 mm — long spans, load-bearing structures (use high-strength alloy).
Tip: If you need a complete “Aluminum I-Beam Size Table Download,” we can provide series-based size and weight charts (Latest Catalogue or Product Documentation Download Page).
Below are datasheet examples for common models (PDFs with cross-sections and BOM templates). We recommend downloading the full version for precise cross-section drawings and BOM templates used in engineering design.
Standard Aluminum I-Beam Datasheet Example (PDF professional template)
Product name: Standard Aluminum I-Beam
Alloy grade: 6061-T6 (example; customizable). (Anodizing and other finishing options may be applied as described in the surface treatment options)
Density: 2.70 g/cm³
Cross-section diagram: I-section showing H, B, tw, tf; editable CAD cross-section available in the full PDF.
BOM template (material list example):
| Component | Description | Quantity | Unit | Notes |
|---|---|---|---|---|
| Beam body | Aluminum I-Beam (H×B×tf×tw) | 1 | m | Specified size |
| Fasteners | Bolt/Rivet | As needed | pcs | Compatibility check |
| Surface treatment | Anodizing | Full length | – | Coating thickness 15–25 μm |
| Extras | End caps / holes | As designed | pcs | Custom options |
Download tip: Visit the Product Documentation Download Page to get the full PDF datasheet, including cross-section drawings, BOM templates, and detailed specs.
3. Nominal Size vs Actual Size and Tolerances
Nominal size is the design and ordering reference (for example, H×B×tf×tw). Actual size reflects manufacturing and finishing tolerances, which you should verify against the supplier’s tolerance chart. General tolerance ranges (for reference; exact values follow standards and factory data):
– Small cross-sections: ±0.1–±0.3 mm
– Medium to large cross-sections: ±0.3–±1.0 mm (larger sections tolerate bigger deviations)
Standards referencing tolerances include EN 755-9 and ASTM B221, which outline tolerance classes and measurement methods. When purchasing, request the supplier’s “size tolerance table / inspection standard.” For processing services, refer to the Aluminum Machining and CNC Parts page.
In some cases, you may also see references to multiple surface treatment processes. See the Multiple Surface Treatment Processes page for details, including Anodize, Power coating, Polish, Brushed, and Electrophoresis options.
4. How to Choose the Right Aluminum I-Beam Size
Key indicators to consider:
– Span: drives the maximum moment and deflection requirements.
– Load type and magnitude (uniform vs. concentrated): governs internal forces and section needs.
– Allowable deflection: common limits are L/200, L/360, or per code.
– Section modulus and moment of inertia: used in bending strength and deflection calculations.
– Weight per meter / cost: affects overall self-weight and material cost.
Selection flow (simplified): 1) Define loads, span, and end conditions; 2) Compute M_allow and required section modulus; 3) Check inertia to meet deflection limits; 4) Compare weight and cost across candidate sizes; consider stiffening or higher alloy if needed; 5) Verify connections and fabrication/install constraints. See our Applications page for real-world examples.
5. Weight Calculation and Unit Conversions
Key constant: aluminum density ≈ 2.70 g/cm³ (2.70 kg/dm³).
Weight per meter (kg/m) quick formula: Weight per meter = Cross-sectional area (cm²) × 0.27
Explanation: 1 cm² cross-section × 100 cm length = 100 cm³; 100 cm³ × 2.70 g/cm³ = 270 g = 0.27 kg.
Example: If the effective cross-sectional area is 12 cm², weight ≈ 12 × 0.27 = 3.24 kg/m (aluminum I-beam weight per meter).
In practice, manufacturers typically provide a weight-per-meter table, and weight can shift slightly with surface finish and exact cross-section. For demonstrations, check the Video Page.
6. Standards and Certifications
Common standards and specifications used in the industry include:
– ASTM B221 — Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes.
– EN 755 series (including EN 755-9) — Aluminum and aluminum alloys extrusion products — Dimensional tolerances.
– EN 573 — Aluminum alloys — Chemical composition and form of wrought products.
Compliance certificates and test reports can be provided on request, including material certificates, chemical analysis, mechanical properties, dimensional inspection, and surface treatment testing (anodizing, coating, etc.). For surface treatments, see Multiple Surface Treatment Processes.
7. Customization and Non-Standard Sizes
Custom options include: height, flange width, web thickness, holes/rounding, surface treatments (anodizing, coating, mechanical polishing), alloy grade, and heat treatment state. Typical process: requirement capture → technical review and quoting → sample/mold confirmation → production and inspection → delivery. If you need, request samples or the initial test report to confirm dimensions and performance. For detailed customization, visit Customized Processing Service.
FAQ
Q: What is the approximate size range for standard aluminum I-beams?
A: Typically H is 20–300 mm, B is 20–150 mm, and web thickness tw is 2–8 mm. Lengths are commonly 3–6 m. Refer to the manufacturer’s size chart for exact numbers.
Q: How do I choose the right aluminum I-beam size?
A: Base the choice on span, load, allowable deflection, and allowable stress. Compute the required section modulus and inertia, then compare weight and cost across viable sizes. Consider reinforcement or higher alloy if needed.
Q: What is the difference between nominal and actual sizes?
A: Nominal sizes guide design and ordering. Actual sizes vary due to extrusion and machining tolerances. Check EN 755-9 or the supplier’s tolerance chart for specifics.
Q: Can you provide custom sizes?
A: Yes. Please provide the required dimensions, alloy, quantity, surface treatment, and tolerance. We’ll assess feasibility and provide a quote.
Q: What standards and certificates do you follow?
A: We typically align with ASTM and EN standards (for example, ASTM B221 and EN 755) and can supply material certificates, test reports, and third-party verifications as needed. See our surface treatment options for details.
Q: Do you offer a weight calculation tool or weight table?
A: Yes. We provide weight per meter tables and online/offline calculation support. We can also supply kg/m data based on the actual cross-section.
Q: Is there sample or technical support available?
A: Yes. We can provide samples (subject to quantity policy), CAD drawings, mechanical/heat-treatment information, and sizing guidance. Contact [email protected] or submit a request via our Sample Acquisition Message.
Procurement and Technical Support (Contact Us)
If you need standard size tables, aluminum I-beam size tables download (standard aluminum I-beam sizes table), CAD/BIM files, or customization consultation, contact us at:
– Website: https://hhalum.com/
– Email: [email protected]
We can provide samples, material and test certificates, and engineering support for selection calculations (section modulus, inertia, deflection checks). For agency partnerships, see our Agency Policy.
RFQ Template for Aluminum I-Beam Purchases
| Field | Description |
|---|---|
| Company Name | |
| Contact Person | |
| Email / Phone | |
| Product Description | Standard or customized aluminum I-beam (specify model, size H×B×tf×tw) |
| Alloy Grade | e.g., 6061-T6 |
| Surface Finish | e.g., Anodizing; refer to surface treatments |
| Quantity | Units: meters or pieces |
| Minimum Order Quantity | We typically offer a standard MOQ (e.g., 500 kg); negotiable |
| Delivery Time | |
| Warranty | |
| Test Reports | Material certificate, chemical analysis, mechanical tests, dimensional inspection |
| Other | Packaging, shipping terms, payment terms |
| Attachments | CAD drawings or specifications |
We will provide a detailed quote and feasibility assessment based on this RFQ.
References / Data Sources
– ASTM International, ASTM B221 — Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes.
– European Committee for Standardization, EN 755 series (including EN 755-9) — Aluminum and aluminum alloys extruded profiles — Dimensional tolerances.
– EN 573 — Aluminum alloys — Chemical composition and form of wrought products.
– Aluminum density around 2.70 g/cm³ (materials references like CRC Handbook, MatWeb).
– Deflection limits commonly used in engineering: L/200, L/360, etc. (as per codes and design manuals).
– MatWeb Material Property Data — aluminum alloys (for reference data).
Note: The size ranges, tolerances, and examples above are intended for quick selection and procurement awareness. For final design, rely on structural calculations, code requirements, and supplier-issued size/tolerance sheets and inspection reports. If you’d like us to prepare a detailed sizing calculation tailored to your loads and boundary conditions, or provide a downloadable size chart with weights and CAD drawings, please email [email protected] and specify project details (loads, spans, quantity).
