DH40 Shipbuilding steel plate

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10-Jul-2024

ASTM A131 DH40 steel plate is a kind of steel for shipbuilding and platform.Shipbuilding steel plate DH40 is the high tensile strength steel. As a professional shipbuilding steel plate exporter, Bebon international can supply steel plate DH40. ASTM A 131 DH40 shipbuilding steel plates can be used in the manufacture of the ship's hull structure whose weight is below 10000 tons.

DH40 Shipbuilding Steel Specification:
Thickness: 4 mm to 260mm,
Width: 1200mm to 4000mm
Length: 3000mm to 18000mm.

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DH40 steel plate Chemical Composition %

Grade	C max	Si max	Mn	P max	S max	Als min	Ti max	Cu max	Cr max	Ni max	Mo max	Nb	V
DH40	0.18	0.50	0.90-1.60	0.035	0.035	0.015	0.02	0.35	0.20	0.40	0.08	0.02-0.05	0.05-0.10

Note: Generally speaking CE will be ≤ 0.40%. If the delivery condition is TMPC, the CE will be : ≤ 0.40% (thickness ≤ 50mm). Ceq% =(C+Mn)/6+(Cr+Mo+V)/5+(Ni+Cu)/15.

DH40 steel plate Mechanical Property

Grade	Rm (MPa)	Re(MPa) min	A% min	Akv/J min
DH40	510-660	390	20	E.T °C	Thickness (mm)
				0	≤ 50		>50-70		>70-100
					L	C	L	C	L	C
					41	27	-

Note: In the list , Rm: tensile strength,Re: Yield strength,A%: elongation, E.T: experimental temperature,L: lengthways, C: crosswise.

DH40 steel plate Condition Of Delivery

Grade	Fine grains elements	category	The thickness of steel
			≤ 12	>12.5-20	>20-25	>25-35	>35-50	>50-100
DH40	any	Plate/ sheet	N(50),CR(50),TM(50)					-
		Profile steel

Note: 1. DH40 Shipbuilding steel delivery condition: A =Any ; N=Normalized ; CR=Control Rolled ; TM=TMPC, Temperature - deformation control rolling; AR*= Can be hot rolled with the agreement of Classification Society ; CR*=Can be control rolled with the agreement of Classification Society .
2. The Figure in the brackets means the sampling volume to do the impact test, the unit is Ton.(-) means without impact test.