Shipbuilding steel plate refers to the carbon and alloy steel plate used in offshore and marine contructions, common grades are A, B, D, E, AH32/36/40, DH32/36/40, and EH32/36/40 which ranged from different strength. The plates usually used to manufacture ship hulls, bulkheads, upper decks and hatch covers for tankers, bulk carriers, container ships and LNG carriers.

shipbuilding plate Dimensions Range

Thickness Range: 5 mm -150 mm
Width Range: 1500 mm - 3900 mm
Length Range: 6 m, 12 m, coils

Specification Of Shipbuilding Plates

Weight	Up to 40 ton
Width	1500-4000
Thickness	4-200 mm
grades	EH36, DH36, AH36, DH32, E32, A40, B, EH32, E36, A36, F40, D40, E, AH40, E40, A, A32, DH40, D36, D, AH32, EH40, D32, and their equivalents
Length	Up to 20000
Delivery condition	quenched and tempered, Hot-rolled, normalised rolled or normalised, thermomechanically rolled

marine grade steel plate of Chemical and Mechanical Requirements

Elements	C	Mn	Al	Si	P	S
AH32	≤0.18	0.7~1.60	≥0.015	0.10~0.50	≤0.04	≤0.04
DH32	≤0.18	0.90~1.60	≥0.015	0.10~0.50	≤0.04	≤0.04
EH32	≤0.18	0.90~1.60	≥0.015	0.10~0.50	≤0.04	≤0.04
AH36	≤0.18	0.7~1.60	≥0.015	0.10~0.50	≤0.04	≤0.04
DH36	≤0.18	0.90~1.60	≥0.015	0.10~0.50	≤0.04	≤0.04
EH36	≤0.18	0.90~1.60	≥0.015	0.10~0.50	≤0.04	≤0.04

Mechanical Properties of AH36, DH36, EH36 Steel Plate for Shipbuilding

Mechanical Properties
Steel Grade	Thickness/mm	Yield point/ MPa	Tensile strength/ MPa	Elongation/ %	V-type impact test
					Temperature/ ℃	Average impact absorption workA_kv/J
					Temperature/ ℃	Vertical	Horizontal
A	≤50	≥235	400~490	≥22	-	-	-
B	≤50	≥235	400~490	≥22	0	≥27	≥20
D	≤50	≥235	400~490	≥22	-10	≥27	≥20
E	≤50	≥235	400~490	≥22	-40	≥27	≥20
AH32	≤50	≥315	440~590	≥22	0	≥31	≥22
DH32	≤50	≥315	440~590	≥22	-20	≥31	≥22
EH32	≤50	≥315	440~590	≥22	-40	≥31	≥22
AH36	≤50	≥355	490~620	≥22	0	≥34	≥24
DH36	≤50	≥355	490~620	≥22	-20	≥34	≥24
EH36	≤50	≥355	490~620	≥22	-40	≥34	≥24