In Singapore's humid maritime climate, 5083 H116 aluminum plates have become the preferred material for shipbuilding, offshore platforms, and chemical processing equipment, thanks to their exceptional resistance to saltwater corrosion, high strength, and excellent weldability. GNEE Aluminum, a leading Chinese aluminum supplier, now provides ASTM B209-compliant 5083 H116 plates tailored to the needs of Southeast Asia, ensuring stable quality, reliable performance, and fast delivery for Singaporean customers.
5083 aluminum plate belongs to the 5xxx series of aluminum-magnesium alloys and is a representative rust-proof aluminum material known for its excellent corrosion resistance, superior weldability, and good cold forming performance. The available tempers include O, H12, H14, H16, H18, H19, H22, H24, H26, H28, H32, H34, H36, H38, H111, H112, H114, H116, and H321. Among these, the most commonly used are H112, H116, and H321, which are widely applied in manufacturing tank truck bodies, automobile fuel tanks, bus exteriors, and marine ship plates.
5083 aluminum plate is one of GNEE Aluminum's key products. It has been extensively used in yachts, cruise ships, and other marine structures, earning an excellent reputation for performance and reliability.

The H temper represents strain-hardened aluminum plates processed to improve strength and hardness. Within the H category, different sub-tempers denote varying degrees of work hardening, resulting in different mechanical properties. The H116 temper is specifically designed for 5xxx series alloys with a magnesium content of ≥4.0%, ensuring the plate meets the required mechanical properties and offers enhanced resistance to exfoliation corrosion.
The 5083 H116 aluminum plate has a tensile strength (σb) ≥305 MPa, yield strength (σ0.2) ≥215 MPa, elongation δ10 ≥20%, and elongation δ5 ≥12%.
GNEE Aluminum, a professional Chinese supplier, can produce 5083 aluminum plates in nearly all tempers, with thicknesses ranging from 0.15mm to 500mm, widths from 20mm to 2650mm, and lengths from 500mm to 16000mm, providing flexible customization to meet diverse customer requirements across industries.
Technical Specifications & Advantages
Chemical & Mechanical Properties
Alloy Composition: Mg (4.0–4.9%), Mn (0.40–1.0%), Cr (0.05–0.25%), balance Al
Tensile Strength: ≥295 MPa
Yield Strength: ≥215 MPa
Elongation: ≥10%
H116 Temper: Specially treated for marine environments, offering up to 30% higher intergranular corrosion resistance compared to standard 5083 plates
Surface & Dimensional Options
Surface Finishes: Anodized, sandblasted, or protective film-coated
Thickness Range: 3 mm – 200 mm (custom thickness available)
Ultra-Wide Plates: Up to 2650 mm for large monolithic structural fabrication
Key Applications in Singapore
Marine Engineering
Oil tanker cargo compartments
Offshore drilling platform decks
Lifeboat hulls and superstructures
Chemical Processing
Acid- and alkali-resistant storage tanks
Industrial piping and heat exchangers
Transportation Infrastructure
MRT train carriage panels
Port crane load-bearing components
Precision Machining
CNC-machined aerospace prototypes and marine fittings
GNEE Aluminum's Supply Chain Advantages
Production Capacity
100,000 tons/year hot rolling capability with ample 5×10 ft standard plate inventory
Proprietary stress-relief technology ensures flatness ≤0.3 mm/m after cutting
Certifications
Approved by CCS, ABS, KR, and LR classification societies
ISO 9001 quality system certified
SGS inspection reports available for chemical composition and mechanical properties
LCL (Less-than-Container Load) service available for small or sample orders
Procurement Guidelines & Cost Optimization
Volume discounts for bulk orders or repeated supply contracts
Quality Inspection Tips
Check surfaces for white spots or oil stains that may indicate heat-treatment defects
Verify grain size (ASTM E112 Grade 5 or finer recommended) for marine-grade consistency

Industry References
XX Marine: Procured 8 mm 5083 H116 plates for LNG carrier containment systems
XX Offshore & Marine: Repeat orders of 150mm plates for semi-submersible platform columns
InXXXa: Customized cut-to-size 5083 plates for PTA reactor vessels
GNEE Aluminum combines advanced production technology, CCS-class certifications, and regional logistics expertise to serve Singapore's rapidly growing maritime and offshore industries.
For quotations or free sample testing, contact GNEE Aluminum today-your trusted partner for 5083 H116 marine-grade aluminum solutions.





