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Bulb flats

Bulb flats are a form of steel plates with an upright edge (bulb) with an optimum weight/strength ratio.

De Boer Staal has a wide assortment of bulb flats in Grades A, AH36 and DH36 that are primarily used in shipbuilding, bridge building and for the laying of rail tracks.

Bulb flats deliver buckling resistance at a lower weight than flat bars or angles and are the most cost-effective, efficient and corrosion-resistant solution for reinforcing the vessel's hull. Moreover, because of their rounded edges there is no need for edge grinding before painting, thus saving time and money.

Stock dimensions and weights Grade A / AH36 / DH36 cert. 3.2 Bulb flat kilogram per meter

b (mm) t (mm) 5 6 7 8 9 10 11 12 13 14 17
60   3.41                    
80   4.41 5.06 5.72                
100     6.32 7.13 7.96              
120     7.6 8.58 9.56              
140       10.1 11.2 12.4            
160       11.9 13.2 14.6            
180         15.4 16.9 18.3          
200           19.2 20.9   24.1      
220             23.7   27.2      
240             26.4 28.5 30.5      
260               31.5 33.7      
280               34.9 37.1      
300               38.2 40.6      
320                 44.2      
340                 47.9      
370                   56.8    
400                     66.5  
430                       83.9

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