What Gauge is Brown White Aluminum Coil Stock? – A Complete Industry Guide

Core Gauge (Thickness) Ranges of Brown White Aluminum Coil Stock

1. Global Standard Gauges

• Commercial Trim Coil Gauges: The most common gauges range from 0.0112 inch (0.284mm) to 0.020 inch (0.508mm). Typical options include 0.0165 inch (0.419mm), 0.018 inch (0.457mm), and 0.019 inch (0.483mm)—these are widely used for decorative trim, window casings, and lightweight siding.

• Industrial-Grade Gauges: For heavy-duty applications like roofing, structural components, or equipment enclosures, gauges can be customized from 0.02mm to 1.2mm (equivalent to 0.000787 inch to 0.0472 inch). The thickness tolerance is strictly controlled at ±0.02mm per global standards like GB/T3880-2012 and ASTM B209.

2. Regional Gauge Variations

• European Market: Following BS EN 1396:2023, brown white painted aluminum coil gauges span a wider range of 0.08mm to 4.0mm (0.00315 inch to 0.1575 inch). This flexibility caters to high-end building facades and renewable energy accessories, with a focus on durability in temperate climates.

• Southeast Asian Market: Optimized for high-temperature and high-humidity environments, gauges concentrate on 0.2mm to 0.8mm (0.00787 inch to 0.0315 inch). These gauges balance formability and corrosion resistance, ideal for low-rise residential roofing and coastal project waterproofing.

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Key Specifications Linked to Gauge

1. Coating Standards for Color Aluminum Coil

• Gauge influences coating thickness requirements: Thinner coils (≤0.5mm) typically use PE coating (≥18μm) for cost-effectiveness, while thicker industrial-grade coils (≥0.8mm) often adopt PVDF coating (≥25μm) for enhanced weather resistance.

• Both coating types ensure the dual-color finish (brown/white) maintains consistency, with no fading under UV exposure—meeting AAMA 615 and ISO 2360 standards.

2. Material & Mechanical Properties

• Common alloys paired with different gauges: 1060/1100 pure aluminum (for thin gauges ≤0.4mm, offering excellent ductility) and 3003/3004 aluminum-manganese alloys (for thick gauges ≥0.5mm, providing higher strength).

• Temper: H24 (half-hard) is the standard state across all gauges, balancing flexibility for bending/cutting and rigidity for structural stability.

3. Width & Length Matching

• Standard widths for trim coil gauges (0.284mm-0.508mm): 8 inch (203mm), 12 inch (305mm), and 24 inch (610mm), with lengths of 10 feet (3.05m) or 50 feet (15.24m).

• Industrial gauges (0.2mm-1.2mm) support custom widths (600mm-2000mm) and coil lengths (20m-100m), with a typical coil weight of 2.5-3 tons.

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Application Scenarios by Gauge

1. Thin Gauges (0.0112 inch/0.284mm – 0.0165 inch/0.419mm)

• Construction Trim & Decoration: Window casings, door frames, soffit boarding, and corner posts—leveraging ductility for easy bending into complex shapes.

• DIY & Lightweight Projects: Home renovation accents, exhibition display frames, and decorative signage—benefiting from lightweight and cost-effectiveness.

• Indoor Applications: Ceiling panels, wall cladding for retail stores, and furniture trim—where sheltered environments reduce corrosion risks.

2. Medium Gauges (0.018 inch/0.457mm – 0.0315 inch/0.8mm)

• Residential & Commercial Roofing: Low-rise building roofs, dormer flashing, and chimney surrounds—balancing durability and formability.

• Waterproofing Solutions: Skylight edges, balcony railings, and coastal project cladding—with PE/PVDF coatings resisting moisture and UV damage.

• Regional Focus: Southeast Asian low-rise housing, European suburban renovations, and commercial signage—adapting to local climate needs.

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3. Thick Gauges (≥0.0315 inch/0.8mm – 4.0mm/0.1575 inch)

• Industrial & Structural Uses: Pipe insulation jackets, electrical enclosures, and lightweight structural components—relying on higher strength from 3003/3004 alloys.

• High-End Construction: European high-rise building facades, renewable energy (solar panel brackets) accessories, and industrial plant exteriors—needing long-term weather resistance.

• Heavy-Duty Waterproofing: Coastal industrial facilities, marine equipment casings, and chemical plant cladding—with PVDF coating ensuring 3000-hour salt spray resistance.

How to Choose the Right Gauge?

1. Application Scenario: Thin gauges for DIY projects and light trim; medium gauges for commercial roofing/siding; thick gauges for industrial structural components.

2. Environmental Conditions: Coastal or long-term outdoor use (choose thicker gauges with PVDF coating); indoor or sheltered applications (opt for thinner gauges with PE coating).

3. Regional Compliance: European projects require gauges aligned with BS EN 1396:2023; Southeast Asian projects need gauges that pass 1000-hour salt spray tests (ASTM D117).

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