What is CCS Grade DH40 Shipbuilding Steel Plate

The higher steel grade CCS DH40 Shipbuilding Steel Plate are used abnormally owning to its high cost and substitutability.With the minimum yield point at 390 Mpa,and tensile strength within 510-650 Mpa,steel plate CCS Grade DH40 can bear the higher strength and used to some steel structure parts in ships.Normalised heat treatment and low temperature impacting test shall be done for CCS Grade DH40 shipbuilding steel plate.

CCS Grade DH40 Shipbuilding Steel Plate Chemical Composition and Mechanical Property

C max	Si max	Mn	P max	S max	Als	Nb	V	Ti max.	Cu max.	Cr max.	Ni max.	Mo max.	N max.
0.18	0.50	0.90-1.60	0.025	0.025	0.015	0.02-0.05	0.05-0.10	0.02	0.35	0.20	0.40	0.08	-

Yield Strength (MPa) min.	Tensile Strength (MPa)	Elongation min. %
390	510-660	20

Equivalent steel grade of CCS/DH40
DNV	GL	LR	BV	RINA	NK	KR	ABS
NV D40	GL-D40	LR/DH40	BV/DH40	RI/D40	K D40	R D40	AB/D40

CCS Grade DH40 Shipbuilding Steel Plate Application

Hull Construction

CCS Grade DH40 Marine Steel Plates are primarily used in building the hull structure of ships, including bulk carriers, oil tankers, container ships, and general cargo vessels.

The steel's high tensile strength and impact resistance ensure structural integrity under heavy loads, strong waves, and dynamic marine conditions.

Decks and Superstructures

Applied in the fabrication of ship decks, superstructures, and bulkheads, CCS Grade DH40 ship plates maintain stability and load-bearing capacity while resisting deformation.

Offshore Engineering Structures

CCS Grade DH40 offshore platform steel plate grades are also used in offshore platforms, drilling rigs, and floating production storage and offloading (FPSO) units.

Their ability to withstand low-temperature impact and harsh sea conditions makes them suitable for deep-sea oil and gas exploration projects.

Reinforcement and Safety Components

Utilized in critical parts of vessels, including keels, ribs, frames, and brackets, to provide additional strength and enhance the overall safety of ships.

CCS Grade DH40 Shipbuilding Steel Plate applications

CCS Grade DH40 Shipbuilding Steel Plate Other Name

CCS Grade DH40 Shipbuilding steel plate,CCS Grade DH40 Ship Steel plate ,CCS Grade DH40 Marine Steel plate , CCS Grade DH40 Steel Plate .

Additional Condition

UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.

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Related steel grades

CCS Steel Plate Grade Supplier
General Strength	CCS Grade A	CCS Grade B	CCS Grade D	CCS GradeE
High Strength	CCS Grade AH32	CCS Grade DH32	CCS Grade EH32	CCS Grade FH32
	CCS Grade AH36	CCS Grade DH36	CCS Grade EH36	CCS Grade FH36
	CCS Grade AH40	CCS Grade DH40	CCS Grade EH40	CCS Grade FH40
Extra Strength	CCS Grade AQ43	CCS Grade DQ43	CCS Grade EQ43	CCS Grade FQ43
	CCS Grade AQ47	CCS Grade DQ47	CCS Grade EQ47	CCS Grade FQ47
	CCS Grade AQ51	CCS Grade DQ51	CCS Grade EQ51	CCS Grade FQ51
	CCS Grade AQ56	CCS Grade DQ56	CCS Grade EQ56	CCS Grade FQ56
	CCS Grade AQ63	CCS Grade DQ63	CCS Grade EQ63	CCS Grade FQ63
	CCS Grade AQ70	CCS Grade DQ70	CCS Grade EQ70	CCS Grade FQ70

CCS Grade DH40 Shipbuilding Steel Plate

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