ASTM A131 DH40 Shipbuilding Steel

ASTM A131 Grade DH40 steel is a kind of hot rolled high tensile strength shipbuilding steel. Higher strength shipbuilding steel products —Grades AH, DH, EH, and FH are with a specified minimum yield point of 46 ksi [315 MPa], 51 ksi [350 MPa], or 57 ksi [390 MPa].

ASTM A131 DH40 Shipbuilding Steel Application:

ASTM A131 Grade DH40 steel plates are almost exclusively used in the Shipbuilding Industry for the construction of structural parts of ships, barges and marine equipment. A131 DH40 shipbuilding steel plates also can be used for ship repairing, the offshore oil drilling platform, the platform pipe joints and other components.

ASTM A131 DH40 Steel Plates Specification:

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

ASTM A131 DH40 Shipbuilding Steel Chemical Requirements (%)

C max	Mn	Si	P max	S max	Al max.	Cb	V	Ti max.	Cu max.	Cr max.	Ni max.	Mo max.
0.18	0.90-1.60	0.10-0.50	0.035	0.035	0.015	0.02-0.05	0.05-0.10	0.02	0.35	0.20	0.40	0.08

ASTM A131 DH40 Shipbuilding Steel Tensile Requirements

Yield Strength (MPa) min.	Tensile Strength (MPa)	Elongation in 8 in. min. %	Elongation in 2 in. min. %
390	510-650	19	22

Katalor is a professional A131 Grade DH40 shipbuilding steel supplier and exporter in China. Shanghai Katalor has been in steel industry for many years and can offer every kind of shipbuilding steel plates and DH40 ship steel sheets to worldwide shipyard and ship building company.