LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS, DH32 Shipbuilding steel plate

Capable Classification Society Quality Authentication from LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS,ASTM A131 DH32 shipbuilding steel  is not only the high tensile strength steel but also is the Hull structural steel. DH32 shipbuilding steel has good toughness properties, higher strength,strong corrosion-resistance,the processing properties,and good welding properties.Shipbuilding steel grade DH32 is used for shipbuilding and oil platform purpose and they are approved by ABS,DNV,GL,BV,LR,NK,RINA and other classification societies.What's more, DH32 shipbuilding steel plate can be used in manufacturing the ship's hull structure whose weight is below 10000 tons.

DH32 Shipbuilding steel plate specification:
Thickness: 4mm to 260mm, 
Width: 1200mm to 4000mm
Length: 3000mm to 18000mm.

DH32 shipbuilding 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
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 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.

DH32 shipbuilding steel plate MechanicaL Property

Grade	Rm (MPa)	Re(MPa) min	A% min	Akv/J min
DH32	440-570	315	22	E.T °C	Thickness (mm)
				-20	≤ 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.

DH32 shipbuilding 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
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)				-

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.

DH32 shipbuilding steel plate Contrast in the different standard

ASTM A131M	TOCT 5521	JIS G3106	BS LR	GB712
DH32	D32	SM490B SM490C	DH32	D32

DH32 shipbuilding steel plate Available Specification

variety		Thickness (mm)	Width (mm)	Longth/ inner diameter (mm)
Shipbuilidng plate	cutting edges	6~200	1500~3000	3000~15000
	non- cutting edges		1300~3000
Shipbuilidng coil	cutting edges	1.2~19	1500~2000	760+20~760-70
	non-cutting edges		1510~2010

DH32 shipbuilding steel plate theoretical weight

Thickness (mm)	theoretical weight		Thickness (mm)	theoretical weight
	Kg/ft2	Kg/m2		Kg/ ft2	Kg/m2
6	4.376	47.10	25	18.962	196.25
7	5.105	54.95	26	20.420	204.10
8	5.834	62.80	28	21.879	219.80
10	7.293	78.50	30	23.337	235.50
11	8.751	86.35	32	25.525	251.20
12	10.21	94.20	34	26.254	266.90
14	10.939	109.90	35	27.713	274.75
16	11.669	125.60	40	29.172	314.00
18	13.127	141.30	45	32.818	353.25
20	14.586	157.00	48	35.006	376.80
22	16.044	172.70	50	36.464	392.50
24	18.232	188.40

DH32 shipbuilding steel plate dimensional deviation

nominal thickness（mm）	The thickness deviation with following width (mm)
	≤1200	>1200~1500	>1500~1800	>1800
>6.0~8.0	±0.29	±0.30	±0.31	±0.35
>8.0~10.0	±0.32	±0.33	±0.34	±0.35
>10.0~12.0	±0.35	±0.36	±0.37	±0.43

nominal thickness（mm）	minus deviation (mm)	The thickness deviation with following width (mm)
		> 1000 ~1200	> 1200 ~1500	> 1500 ~1700	> 1700 ~1800	> 1800 ~2000	> 2000 ~2300	> 2300 ~2500	> 2500 ~2600	2600 ~2800	> 2800 ~3000
>12~25	-0.8	+0.2	+0.2	+0.3	+0.4	+0.6	+0.8	+0.8	+1.0	+1.1	+1.2
>25~30	-0.9	+0.2	+0.2	+0.3	+0.4	+0.6	+0.8	+0.9	+1.0	+1.1	+1.2
>30~34	-1.0	+0.2	+0.3	+0.3	+0.4	+0.6	+0.8	+0.9	+1.0	+1.2	+1.3
>34~40	-1.1	+0.3	+0.4	+0.5	+0.6	+0.7	+0.9	+1.0	+1.1	+1.3	+1.4
>40~45	-1.2	+0.4	+0.5	+0.6	+0.7	+0.8	+1.0	+1.1	+1.2	+1.4	+1.5