GL B Shipbuilding Steel

shipbuilding steel GL B is produced in plates, sheets, angles, H beams, bulb flats, and L angles with high quality. Shanghai Katalor can supply thousands tons of shipbuilding plate GL B with GL agency endorsed and stamped every month, and transported to domestic shipyards to use and export to overseas shipyards.

Classification society GL is short for Germanischer Lloyd. As an independent classification society, GL was created to evaluate the quality of ships and deliver the results to stakeholders. GL’s first international ship classification register from 1868 reports 273 classed ships. By 1877, the number had grown tenfold. The surveyor network extended rapidly as a result. The DNV GL Group became operational on September 12, 2013 after the merger of DNV and GL. Now the DNV GL Group operates in over 100 countries.

Grade GL B is the hull structural steel, shipbuilding steel, marine steel. GL Grade B marine steel plates have good toughness properties, higher strength, strong corrosion-resistance, the processing properties, and welding properties. Shipbuilding steel plate GL Grade B is mainly used in about zero centigree ocean situation. GL B hull steel plate is done low temperature impacting test when rolling in our steel mill.

GL B Shipbuilding Steel Chemical Requirements (%)

Grade	C max	Si max	Mn min	P max	S max	C+Mn/6
GL B	0.21	0.35	0.60	0.035	0.035	0.40

GL B Shipbuilding Steel Tensile Requirements

Grade	Yield Strength (Mpa)	Tensile Strength (MPa)	Elongation in 8 in. [200mm] (%)	Elongation in 2 in. [50mm] (%)	Test Temperature(°C)
GL B	235	400-520	21	24	20

GL B Shipbuilding Steel Plates Specification:

Thickness: 4mm to 260mm,
Width: 1200mm to 4000mm
Length: 3000mm to 18000mm.

GL B plates packing: GL B marine steel plate is normally wrapped by plastic film and waterproof paper, and then fastened on wooden pallet or as you request.