CCS DH32 shipbuilding steel has good toughness

Posted:2019-09-19 14:55:59

CCS DH32 shipbuilding steel is not only the high tensile strength steel but also the hull structural steel. CCS DH32 shipbuilding steel has good toughness, higher strength, strong corrosion-resistance, good processing properties and welding properties.

CCS DH32 shipbuilding steel chemical composition:

Grade	C max	Si max	Mn	P max	S max	Als min	Ti max	Cu max	Cr max	Ni max	Mo max
DH32	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, Ceq will be ≤ 0.40%. If the delivery condition is TMPC, the Ceq will be : ≤ 0.36% (thickness ≤ 50mm), ≤0.38% ( when the thickness >50-100).
Ceq% =(C+Mn)/6+(Cr+Mo+V)/5+(Ni+Cu)/15.

CCS DH32 shipbuilding steel mechanical property:

Grade	Rm (MPa)	Re(MPa) min	A% min	Akv/J min
				E.T °C	Thickness (mm)
					≤ 50		>50-70		>70-100
					L	C	L	C	L	C
DH32	440-570	315	22	-20	31	22	38	26	46	31

CCS DH32 shipbuilding steel delivery condition :

Grade	Fine grains elements	category	The thickness of steel
			≤ 12	>12.5-20	>20-25	>25-35	>35-50	>50-100
DH32	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)				-

CCS DH32 shipbuilding steel is designed for shipbuilding and oil platform purpose. CCS DH32 shipbuilding steel is mainly used to contribute hull of ships and the cranes of break bulker and vessels in low temperature oceans.

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