Aluminium Bar Types & Sizes
Aluminium bars are available in various shapes and dimensions:
- Round Bars: Diameters range from 3 mm to 800 mm.
- Square Bars: Sizes range from 4 mm to 200 mm.
- Hexagonal Bars: Across flats (A/F) from 2 mm to 100 mm.
- Flat Bars: Thicknesses from 2 mm to 300 mm; widths from 10 mm to 500 mm.
- Rectangular Bars: Sizes from 33 mm × 30 mm to 295 mm × 1066 mm.
- Hollow Bars: Outer diameters from 32 mm to 250 mm; inner diameters from 16 mm to 200 mm.
- Length: Standard lengths range from 1 meter to 6 meters, with custom lengths available upon request.
Aluminium Grades & Properties
Aluminium bars are manufactured in various grades, each with specific chemical compositions and mechanical properties:
| Grade | Composition Highlights | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Brinell Hardness | Applications |
| 1100 | Al ≥ 99% | 130 | 125 | 20 | 35–40 | Electrical conductors, chemical equipment |
| 2024 | Al, Cu (3.8–4.9%), Mg (1.2–1.8%) | 400 | 290 | 10 | 120–150 | Aerospace structures, truck wheels |
| 3003 | Al, Mn (0.12–0.45%) | 145 | 125 | 22 | 40–50 | Roofing sheets, cooking utensils |
| 5052 | Al, Mg (2.2–2.8%), Cr (0.15–0.35%) | 210 | 130 | 12 | 65–80 | Marine applications, pressure vessels |
| 5083 | Al, Mg (4.0–4.9%), Mn (0.4–1.0%) | 320 | 230 | 14 | 75–95 | Marine applications, structural components |
| 6061 | Al, Mg (0.8–1.2%), Si (0.4–0.8%) | 310 | 275 | 17 | 95–105 | Structural components, pipelines |
| 6063 | Al, Mg (0.45–0.9%), Si (0.2–0.6%) | 205 | 170 | 15 | 60–75 | Architectural frameworks, structural components |
| 6082 | Al, Si (0.7–1.3%), Mg (0.6–1.2%) | 295 | 240 | 8 | 95 | Structural applications, bridges |
| 7075 | Al, Zn (5.1–6.1%), Cu (1.2–2.0%) | 572 | 503 | 11 | 150–160 | Aerospace structures, sports equipment |
Note: Mechanical properties can vary based on temper and manufacturing processes.
Surface Finishes & Tempers
- Finishes: Mill finish, polished, anodized, and chequered.
- Tempers: O, H12, H14, H16, H18, T3, T4, T5, T6, T651, T6511.
Standards & Specifications
Aluminium bars conform to various international and Indian standards:
- ASTM: B211, B221, B565, B316
- ASME: SB211, SB221, SB565, SB316EN: 573-3, 755-2
- IS: 5082
Applications by Grade
- 1100: Electrical conductors, chemical equipment, food industry.
- 2024: Aerospace structures, truck wheels, automotive components.
- 3003: Roofing sheets, cooking utensils, chemical equipment.
- 5052 & 5083: Marine applications, pressure vessels, transportation equipment.
- 6061 & 6082: Structural components, pipelines, architectural applications.
- 7075: Aerospace structures, sports equipment, high-performance applications
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