AH32 Shipbuilding steel plate

65 Views
03-Jun-2024

Ah32 steel plate is used for shipbuiling&platform.The shipbuilding steel plate grade AH32 is the high tensile strength steel. Ah32 shipbuilding steel has good toughness properties, higher strength,strong corrosion-resistance,the processing properties,and welding properties. ASTM A131 Ah32 steel plate can be used in the manufacture of the ship's hull structure whose weight is more than 10000 tons.

AH32 Shipbuilding steel plate specification:
Thickness: 4mm to 260mm
Width: 1200mm to 4000mm
Length: 3000mm to 18000mm

AH32 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
AH32	0.18	0.50	0.90-1.60	0.035	0.035	0.015	0.02	0.35	0.20	0.40	0.08

Note: Generally speaking CE will be ≤ 0.40%. If the delivery condition is TMPC, the CE will be : ≤ 0.36% (thickness ≤ 50mm),≤0.38%( when the thickness >50-100). Ceq% =(C+Mn)/6+(Cr+Mo+V)/5+(Ni+Cu)/15.

AH32 steel plate Mechanical Property

Grade	Rm (MPa)	Re(MPa) min	A% min	Akv/J min
AH32	440-570	315	22	E.T °C	Thickness (mm)
				0	≤ 50		>50-70		>70-100
					L	C	L	C	L	C
					31	22	38	26	46	31

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

AH32 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
AH32	Nb+V or V	Plate/ sheet	A(50)	N(50),CR(50),TM(50)				N(50),CR(25),TM(50)
		Profile steel		N(50),CR(50),TM(50),AR*(25)				-
	Al or Al+Ti	Plate/ sheet	A(50)		AR*(25)		-
					N(50),CR(50),TM(50)			N(50),CR(25),TM(50)
		Profile steel	A(50)	N(50),CR(50),TM(50),AR*(25)				-

Note: 1. 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 ( ) means the sampling volume to do the impact test, the unit is Ton.(-) means without impact test.

Contrast in the different standard