AW 6082 T6 Aluminum Bulb Flat Extrusions | ABS DNV LR BV CCS Certified
AW 6082 T6 Aluminum Bulb Flat Extrusions are high-strength marine-grade aluminum structural profiles widely used in shipbuilding, offshore platforms, marine engineering, transportation, and lightweight structural applications. Manufactured from EN AW 6082 T6 (AlSi1MgMn / UNS A96082), these bulb flats combine excellent mechanical strength, outstanding corrosion resistance, superior weldability, and significant weight savings compared to traditional steel bulb flats.
Our aluminum bulb flats can be supplied with classification society approvals including ABS, DNV, LR, BV, CCS, and NK, making them suitable for marine and offshore projects worldwide.
We are a professional manufacturer and exporter of:
- AW 6082 T6 Aluminum Bulb Flat Extrusions
- Marine Aluminum Bulb Flats
- ABS Approved Aluminum Bulb Flats
- DNV Approved Aluminum Bulb Flats
- LR Approved Aluminum Bulb Flats
- BV Approved Aluminum Bulb Flats
- CCS Approved Aluminum Bulb Flats
with worldwide delivery and EN 10204 3.1 certification.
What Is an Aluminum Bulb Flat?
An aluminum bulb flat is a specialized extruded structural profile featuring a flat web combined with a rounded bulb section. The unique shape provides excellent stiffness, structural reinforcement, and load distribution while minimizing overall structural weight.
Compared with traditional flat bars, angle bars, and channels, aluminum bulb flats offer:
- Higher strength-to-weight ratio
- Improved structural rigidity
- Better load distribution
- Reduced fabrication weight
- Lower lifecycle maintenance costs
- Excellent corrosion resistance
These advantages make aluminum bulb flats the preferred structural profile for modern aluminum vessels, offshore structures, ferries, patrol boats, and marine engineering projects.
Why Choose AW 6082 T6 Aluminum Bulb Flats?
EN AW 6082 T6 is one of the strongest alloys within the 6000-series aluminum family and is widely used for highly loaded structural applications.
High Structural Strength
6082-T6 offers excellent tensile and yield strength, making it ideal for ship structures, offshore modules, and marine frameworks.
Outstanding Corrosion Resistance
Provides long-term protection against:
- Seawater exposure
- Marine atmosphere
- Offshore environments
- Industrial corrosion
Excellent Weldability
Suitable for MIG and TIG welding processes.
Common filler metals include:
- ER5356 Welding Wire
- ER5183 Welding Wire
Lightweight Construction
Compared with steel structures:
- Up to 65% weight reduction
- Lower fuel consumption
- Increased payload capacity
- Easier installation
Excellent Fatigue Performance
Ideal for dynamic loading conditions commonly found in marine and offshore applications.
AW 6082 T6 Material Specification
| Item | Description |
|---|---|
| Alloy | EN AW 6082 |
| UNS | A96082 |
| ISO | AlSi1MgMn |
| Temper | T6 |
| Manufacturing Process | Extruded |
| Standard | EN 755 |
| Certification | ABS, DNV, LR, BV, CCS, NK |
| Surface | Mill Finish / Anodized |
Chemical Composition of AW 6082
| Element | Content (%) |
|---|---|
| Silicon (Si) | 0.70 – 1.30 |
| Iron (Fe) | ≤0.50 |
| Copper (Cu) | ≤0.10 |
| Manganese (Mn) | 0.40 – 1.00 |
| Magnesium (Mg) | 0.60 – 1.20 |
| Chromium (Cr) | ≤0.25 |
| Zinc (Zn) | ≤0.20 |
| Titanium (Ti) | ≤0.10 |
| Other Elements (Each) | ≤0.05 |
| Other Elements (Total) | ≤0.15 |
| Aluminum (Al) | Balance |
Mechanical Properties of EN AW 6082 T6
According to EN 755-2:
| Temper | Thickness | Yield Strength Rp0.2 | Tensile Strength Rm | Elongation |
|---|---|---|---|---|
| T6 | ≤5 mm | ≥250 MPa | ≥290 MPa | ≥8% |
| T6 | 5–25 mm | ≥260 MPa | ≥310 MPa | ≥10% |
Physical Properties
| Property | Value |
|---|---|
| Density | 2.70 g/cm³ |
| Modulus of Elasticity | 70 GPa |
| Thermal Conductivity | 180 W/m·K |
| Electrical Conductivity | 52% IACS |
| Melting Range | 555–650°C |
Available Aluminum Bulb Flat Sizes
Typical dimensions include:
| Height | Thickness |
|---|---|
| 50 mm | 6–8 mm |
| 80 mm | 6–10 mm |
| 100 mm | 6–12 mm |
| 120 mm | 8–15 mm |
| 150 mm | 10–18 mm |
| 180 mm | 12–20 mm |
| 200 mm | 12–25 mm |
Custom dimensions and project-specific profiles can be manufactured according to shipyard drawings and engineering requirements.
ABS DNV LR BV CCS Certified Marine Bulb Flats
Our aluminum bulb flats are approved for use in:
Commercial Shipbuilding
- Cargo vessels
- Ferries
- Passenger ships
- Workboats
Naval and Defense Vessels
- Patrol boats
- Coast guard vessels
- Military support vessels
Offshore Structures
- Offshore platforms
- Offshore wind farms
- Walkways
- Helidecks
Marine Fabrication
- Hull stiffeners
- Longitudinal reinforcements
- Bulkheads
- Deck structures
- Superstructures
Aluminum Bulb Flat vs Steel Bulb Flat
| Property | Aluminum 6082 T6 | Steel Bulb Flat |
|---|---|---|
| Weight | Very Low | High |
| Corrosion Resistance | Excellent | Requires Coating |
| Maintenance Cost | Low | Higher |
| Weldability | Excellent | Good |
| Marine Service Life | Long | Moderate |
| Strength-to-Weight Ratio | Excellent | Moderate |
For modern aluminum shipbuilding projects, 6082 T6 bulb flats provide significant operational and lifecycle cost advantages.
Manufacturing Process
Extrusion
High-quality aluminum billets are extruded through precision dies to achieve accurate bulb flat profiles.
Heat Treatment
The T6 temper is achieved through:
- Solution Heat Treatment
- Artificial Aging
Surface Treatment Options
Available finishes include:
- Mill Finish
- Marine Anodized
- Clear Anodized
- Powder Coated
- Customized Protective Coatings
Inspection and Quality Control
All aluminum bulb flats can be supplied with:
- Chemical Analysis
- Mechanical Testing
- Ultrasonic Testing (UT)
- Dimensional Inspection
- Hardness Testing
- Surface Inspection
Certificates available:
- EN 10204 3.1
- EN 10204 3.2
Third-party inspection:
- ABS
- DNV
- LR
- BV
- CCS
Applications of AW 6082 T6 Aluminum Bulb Flats
Shipbuilding
- Hull reinforcement
- Deck support structures
- Longitudinal stiffeners
- Bulkhead framing
Offshore Engineering
- Offshore modules
- Platform structures
- Marine walkways
Transportation
- Rail coaches
- Lightweight vehicle structures
- Modular transport systems
Construction
- Bridges
- Architectural frameworks
- Structural supports
Industrial Fabrication
- Equipment frames
- Lightweight structural assemblies
- Modular engineering systems
Typical Ordering Description
Product: Aluminum Bulb Flat Extrusion
Material: EN AW 6082 T6
Certification: DNV Approved
Size: 120 × 8 mm
Length: 6000 mm
Surface: Mill Finish
Certificate: EN 10204 3.1
Quantity: 20 MT
Frequently Asked Questions
What is AW 6082 T6 Aluminum Bulb Flat?
It is a marine-grade aluminum structural profile used as a lightweight alternative to steel bulb flats in shipbuilding and offshore applications.
Is 6082 T6 approved by classification societies?
Yes. It can be supplied with ABS, DNV, LR, BV, CCS, and NK approvals.
Is 6082 suitable for marine environments?
Yes. EN AW 6082 provides excellent resistance to seawater and marine atmospheric corrosion.
What welding consumables are recommended?
ER5356 and ER5183 aluminum welding wires are commonly used.
Can custom bulb flat sizes be manufactured?
Yes. Custom dimensions and project-specific profiles are available.
Related Products
- 5083 H116 Marine Aluminum Plate
- 5083 H321 Aluminum Plate
- 6082 T6 Flat Bar
- 6082 T6 Angle Bar
- 6082 T6 Round Bar
- Marine Grade Aluminum Extrusions
- Aluminum T Sections
- Aluminum Channels
- ER5183 Aluminum Welding Wire
- ER5356 Aluminum Welding Wire
