Aluminium Sheet 31000

Aluminium Sheet 31000 refers to an alloy specified under IS 737/2008, commonly supplied in temper H2. It is used for applications requiring anodising, smooth surface finish, and moderate strength. Typical sheet dimensions are 2.5 mm 1220 mm 2440 mm.

Key Details of Aluminium Sheet 31000

Standard & Specification

• Standard: IS 737/2008 (Indian Standard for wrought aluminium and aluminium alloy sheet and strip).

• Designation: 31000 (Indian equivalent of Aluminium Alloy 31000).

• Temper: H2 (strain-hardened, partially annealed).

• Surface: Smooth, suitable for anodising.

Typical Dimensions

• Thickness: 2.5 mm

• Width: 1220 mm

• Length: 2440 mm

• Form: Sheets, chequered plates, and flat plates.

Mechanical & Physical Properties

• Strength: Moderate compared to high-strength alloys like 6061 or 7075.

• Corrosion Resistance: Good, especially when anodised.

• Workability: Excellent for forming and fabrication.

• Conductivity: Moderate electrical conductivity.

Common Applications

• Architectural: Panels, facades, roofing, and decorative anodised finishes.

• Industrial: Chequered plates for flooring, transport vehicles, and anti-slip surfaces.

• General Fabrication: Sheet metal work, enclosures, and consumer products.

Procurement Notes

• Warranty: Typically 30 months after delivery (as per tender specifications).

• Supply Form: Sheets and chequered plates.

• Inspection: Often subject to third-party inspection (TPI).

Comparison with Other Aluminium Grades

Risks & Considerations

• Not ideal for high-stress applications (e.g., aerospace, defense).

• Requires anodising for enhanced corrosion resistance in outdoor/marine environments.

• Availability may vary; often supplied in standard sheet sizes.

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