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

Capable Classification Society Quality Authentication from LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS,Shipbuilding steel Grade D is a common tensile strength steel . ASTM A 131 Grade D steel plate is usual for shipbuilding and oil platform purpose.D shipbuilding steel is the Hull structural steel which with a good toughness properties, higher strength,strong corrosion-resistance,the processing properties,and welding properties.The shipbuilding steel grade D is mainly used in the manufacture of the ship's hull structure whose weight is below 10000 tons,and usually do navigation around coastal and river area.

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

Grade D steel plate Chemical Composition

Grade	C max	Si max	Mn	P max	S max	Als min
Grade D	0.21	0.35	0.60-1.20	0.035	0.035	0.015

Note: CE: C+1/6Mn ≤ 0.40% Cu ≤ 0.35%,Ni ≤ 0.30%≤

Grade D steel plate Mechanical Property

Grade	Rm (MPa)	Re(MPa) min	A% min	Akv/J min
Grade D	400-520	235	22	E.T °C	Thickness (mm)
				-20	≤ 50		>50-70		>70-100
					L	C	L	C	L	C
					27	20	34	24	41	27

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

Grade D steel plate Condition Of Delivery

Grade	category	The thickness of steel
		≤ 12	>12.5-25	>25-35	>35-50	>50-100
Grade D	Plate/sheet	A(50)			N(50) CR(50) TM(50)	N(50) TM(50) CR(25)
	Profile steel				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.

Grade D steel plate Contrast in the different standard

ASTM A131M	TOCT 5521	JIS G3106	BS LR	GB712
Grade D	GradeD	SM400B SM400C	Grade D	Grade D

Grade D 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

Grade D 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

Grade D 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

Grade D shipbuilding steel is offered by bebon , we keep more than 10000 ton Grade D shipbuilding steel spotevery month , any need in Grade D shipbuilding steel , please contact us!