LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS Grade B Shipbuilding steel plate
LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS Grade B Shipbuilding steel plate
LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS Grade B Shipbuilding steel plate Capable Classification Society Quality Authentication from LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS Grade B steel,ASTM A131 Grade B steel plate is a kind of shipbuilding steel which is mainly for shipbuilding and platfor
LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS Grade B Shipbuilding steel plate
Capable Classification Society Quality Authentication from LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS Grade B steel,ASTM A131 Grade B steel plate is a kind of shipbuilding steel which is mainly for shipbuilding and platform. Grade B shipbuilding steel plate is a common tensile strength steel. As a professional A131 Grade B shipbuilding steel plate exporter, Bebon international can supply high quality Grade B steel plate in most competitive price. ASTM A 131 shipbuilding steel plates can be used in the manufacture of the ship's hull structure whose weight is below 10000 tons.
Grade B shipbuilding steel plate specification:
Thickness: 6mm-200mm, Width: 1500mm-4000mm, Length: 6000mm-180000mm
Grade B steel Chemical Composition
Grade |
C max |
Si max |
Mn |
P max |
S max |
Grade B |
0.21 |
0.35 |
0.80-1.20 |
0.035 |
0.035 |
Note: CE: C+1/6Mn ≤ 0.40% Cu ≤ 0.35%,Ni ≤ 0.30%≤
Grade B steel Mechanical Property
Grade |
Rm |
Re(MPa) min |
A% min |
Akv/J min |
||||||
Grade B |
400-520 |
235 |
22 |
E.T °C |
Thickness (mm) |
|||||
0 |
≤ 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 B steel Condition Of Delivery
Grade |
category |
The thickness of steel |
|||||
≤ 12 |
>12.5-25 |
>25-35 |
>35-50 |
>50-100 |
|||
Grade B |
Plate/sheet |
A(-) |
A(50) |
N(50),TM(50) |
|||
Profile steel |
- |
||||||
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 B steel Contrast in the different standards
ASTM A131M |
TOCT 5521 |
JIS G3106 |
BS LR |
GB712 |
Grade B |
Grade B |
SM400B |
Grade B |
Grade B |
Grade B 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 B 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 B 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 |
Client demands
Customer's requirement configuration.
1. demandCustom design
Field inspection design and design plan.
2. designProcessing & transportation
Initial customized processing and transportation.
3. ProcessingOn-site installation
On-site guidance for construction and installation.
4. installation
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