ASTM A131 AH36 steel is hull structure steel. Because of its poor working conditions, hull shell is easy to suffer from chemical corrosion, electrochemical corrosion, marine organism and microorganism. Because of its above and so on other factors, ASTM A131 AH36 steel is highly required in quality.

Hull structure steel ASTM A131 AH36 steel properties:

Grade	Rm(MPa)	Re(MPa) min	A% min	Akv/J min
AH36	490-630	355	21	E.T °C	Thickness (mm)
				0	≤ 50		>50-70		>70-100
					L	C	L	C	L	C
					34	24	41	27	50	34

ASTM A131 AH36 steel is strictly required in high strength, good corrosion resistance, welding property, processing forming performance and surface quality. In order to ensure excellent quality and enough toughness, Mn/C chemical content of ASTM A131 AH36 steel is required above 2.5.

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