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You are here : section steel--Katalor steel > Flat-Bulb Steel for shipbuilding > 正文GL GRADE A bulb flat steel

GL GRADE A bulb flat steel

GL GRADE A bulb flat steel

bulb flat steel is a kind of section steel which mainly used in shipbuilding field and bridge build field. In recently years, with the rapid development of the shipbuilding industry, shipbuilding bulb flat steel has a large demand in the market. Most of larges ship chose bulb flat steel as their main hull, which we also called keel.

Currently, the bulb flat steel in Chinese market are produced according to the standard of GB/T9945-2012 “Hot-rolled bulb flat steels”, similar standard include EN10067, JIS G3192, ISO 657-19. Please click here to find the size information.

GL /A bulb flat steel is a normal strength hull structural steel, below is the technique data of GL GRADE A bulb flat steel

Chemical Composition of GL GRADE A bulb flat steel

Grade	Chemical Composition %
Grade	C	Si	Mn	P	S	Cu	Cr	Ni
GL A	≤0.21	≤0.50	≥0.50	≤0.035	≤0.035.	≤0.35	≤0.30	≤0.30

Mechanical Properties of GL GRADE A bulb flat steel

Grade

Tensile Test

Impact Energy KV2/J

Yield Strength ReH/Mpa

Tensile Strength Rm/Mpa

Elongation A/%

Temperature

℃

Longitudinal

Transverse

GL A

≥235

400-520

≥22

We are a bulb flat steel manufacturer and supplier, who has large quantity bulb flat steel in stock, please send us your inquiry if you need bulb flat steel. We can supply bulb flat steel with Classification Society Certification such as LR, BV, ABS, DNV, RINA, NK, KR, GL, CCS, and so on.

Katalor Enterprises always supply prime quality product to customer, we have the lowest price and best service, if you need bulb flat steel, please contact us.