LR gr.B Shipbuilding Steel

LR gr.B Ship plate is Refer to the hot-rolled steel sheet that used to manufacture the hull structure and it is produced by the classification society's construction specifications. LR gr.B steel is mainly used to manufacture hulls, decks, for ocean, coastal and inland navigation shipping vessels etc.

LR gr.B shipbuilding steel Chemical Requirements (%)

Grade	C max	Si max	Mn min	P max	S max	C+Mn/6
LR B	0.21	0.50	2.5xC	0.035	0.035	0.40

LR Gr.B Shipbuilding Steel Mechanical Property

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

LR gr.B ship steel Classification

The steel for hull structure is divided into two types: general strength and high strength steel. The quality of general strength steel is divided into four grades: A, B, D, and E. High-strength steel is divided into two strength grades and three quality grades: AH32. , DH32, EH32, AH36, DH36, EH36.

LR gr.B classification society certification:

Gr.B Shipbuilding Steel has been certified by nine classification societies such as American ABS, French BV, British LR, German GL, Norwegian DNV, Italian RINA, Japanese NK, Chinese CCS, and Korean KR.

Shipbuilding steel Grade A, grade B, Grade D, Grade E are the general strength steel. If you need Grade A, grade B, Grade D, Grade E shipbuilding steel plates/sheet or chemical composition, mechanical property, and yield strength, please contact us, we will try our best to help you.