Bulb Flat Steel (Marine Structural Steel)
TAGS: Bulb Flat Steel | Marine Steel Profile | Hot-Rolled Structural Steel
Bulb flat steel, also known as ball flat steel or flat bulb steel, is a type of hot-rolled structural steel profile widely used in the construction of ships, hull reinforcements, and other offshore structures. Characterized by its unique shape—resembling a flat-bottomed boat or ship bulb—it provides significantly greater strength and buckling resistance than standard flat steel bars while minimizing weight, making it the ideal stiffener for maritime applications.
Key Specifications & Dimensions
- Rolling Size Range: HP80*5 to HP432*20
- Length Range: 6000 mm – 13000 mm
- Manufacturing Standards: EN 10067:1997, GB/T9945-2001
- Production Capacity: 50,000 tons per month
Available Steel Grades for Bulb Flats
We manufacture bulb flat steels from a wide range of high-quality marine and carbon steel grades. Our shipbuilding special profiles are fully certified by international classification societies including CCS, ABS, GL, LR, NK, BV, DNV, KR, and RINA.
| Material Category | Available Steel Grades & Certifications |
|---|---|
| Shipbuilding Special Steel |
Grades: Grade A, Grade B, Grade AH32, Grade AH36, Grade AH40, Grade DH32, Grade DH36, Grade DH40 Certifications: CCS, ABS, GL, LR, NK, BV, DNV, KR, RINA |
| Carbon Structural Steel | Grades: Q235B, Q345B, S355JR, S235JR, A36, SS400, A283 Grade C, St37-2, St52-3 |
Surface Treatment & Processing Services
To ensure maximum strength, durability, and resistance to harsh marine corrosion and fatigue, our bulb flat steel can be subjected to rigorous surface treatments. BEBON provides customized shot blasting and marine-grade painting (priming) prior to delivery. Additionally, we offer precision cutting, bending, and welding services strictly according to the shipyard's CAD drawings.