Bulb Flats

Product image of a bulb flat used for plate stiffening in the ship building industry.

Bulb flats are the most cost-effective, efficient and corrosion-resistant solution for plate stiffening. They deliver buckling resistance at a lower weight than flat bars or angles and thanks to their rounded edges, there is no need for edge grinding before painting, saving time and money.

We help customers to adhere to project schedules thanks to our regular rolling programme for all bulb flat products. We offer a convenient, local service through our international network of sales offices.

Wide range

We supply bulb flats in a wide range of steel types and grades. We also offer a choice of finishing services to meet our customers' needs. These include:

  • Shotblasting and priming – using a range of industry standard pre-fabrication primers to provide improved fabrication performance and protection
  • Weld edge preparation to reduce preparation required for automated welding
  • A range of enhanced dimensional tolerances giving further weight and engineering enhancements to your designs

Dimensional availability

Bulb flats are available in the following ranges:

  • Widths from 160 to 430mm
  • Thicknesses from 7 to 20mm

Benefits

We are ISO9001:2008 compliant. We also have approval of the world’s leading classification societies including: ABS, BV, CCS, DNV, GL, LRS, RINA and MRRS.

Steel types and grades

The following table shows steel grades that we produce regularly for bulb flats. Please contact us if you have any other specific requirements.

Strength Grade
Normal       A, B
D
E
High strength       A32
D32
E32
A36
D36
E36

 

Euronorm                     Grade    
ASTM A572 Gr50 

 




EN10025-2




S235JR+AR 
S235J0+AR
S235J2+AR
S275JR+AR
S275J0+AR
S275J2+AR
S355JR+AR
S355J0+AR
S355J2+AR
EN10025-4 S355M
EN10225 G11
G12


*Excluding 100% inspection and individual bar marking 

Customer support & product queries

PO Box 1, Skinningrove,
Saltburn-by-the-Sea, TS13 4ET.
T +44 (0)1287 593124 E specialprofiles@britishsteel.co.uk