5000 Series Corrosion Resistance AA5083 Aluminum Alloy For Metro Flooring

5083 aluminum sheet belongs to Al-Mg series alloy. It is the highest strength corrosion-resistant

alloy among practical non-heat-treated alloys. And it is suitable for welding structures. Also, it is

worth mentioning that 5083 aluminum sheet has good resistance to seawater and low-temperature

characteristics.

5083 aluminum (H116/H321 preferred) is the material of choice for metro flooring due to its lightweight,

high strength, and lifecycle economy.

Standard Thickness Specifications

♦ Standard flooring: 3-5mm (lightweight structural requirements)

♦ High-load areas: 5-8mm (doorways/passenger concentration zones)

♦ Special reinforcement: 8-12mm (under seating/equipment mounting points)

Performance Advantages

1) Structural Benefits

✓ 40% weight reduction vs. steel flooring

✓ Tensile strength: 275-350 MPa (H34 temper)

✓ Fatigue resistance exceeds 10⁷ cycles at 80MPa

2) Safety Features

• Non-sparking characteristics (essential for underground transport)

• Fire performance meets DIN 5510-2 Class S4/SR2

• Excellent impact energy absorption (50J at -20°C)

3) Maintenance Advantages

▶ 30-year service life expectancy

▶ Corrosion-resistant in humid underground environments

▶ Minimal lifecycle maintenance requirements

Comparison with Alternative Alloys

Current Applications

• Berlin U5 Line (Germany)

5083-H111 one-piece curved flooring (60% fewer seams)

• Shanghai Metro Line 14 trainsets

5083-H116 flooring (3.0 mm), 1.8-ton weight reduction per train

Surface: Anodized + anti-slip granules (friction coefficient ≥0.8)

• Singapore Circle Line MRT vehicles

5083-H321 honeycomb sandwich panels (1.5 mm face + 15 mm core)

Key design considerations:

✅ Anti-slip treatment (e.g., electrolytic polishing/ceramic coating)
✅ Electrical insulation (to prevent galvanic corrosion)
✅ Compliance with EN 45545-2/BS 6853 fire standards

Company Advantages

1) Full sets of imported vertical intelligent storage and logistic management system, and finishing

lines which fulfill all the requirements on various kinds of Aluminium plate,sheet and strip products.

2) We have has built up on the basis of outstanding management and complete quality control system

under its rich experiences and has got many kinds of quality management certificates such as ISO90

-01:2015, ISO14001:2015,ISO45001:2018,IATF16949:2016,AS9100D,ISO/TS22163:2017, and has

passed ABS,CCS, DNVGL,LR,NK,KR etc.proof from National Classification Society.

3) We take social responsibility and regards environment protection as main task for long-term develop

-ment. It is featured with pulse-type bag dedust system from NEDERMAN Germany,which emission

index of main exhaust stuff and particles are lower than national criteria.

Our factory own the world advanced equipments, include: