Hot Rolled Shipbuilding Steel Plate

Hot Rolled Shipbuilding Steel Plate

Hot rolled shipbuilding steel is produced in accordance with the relevant Hot Rolled Shipbuilding Steel PlateClassification Society, examples of which include Lloyds Register and Det Norske Veritas.

 

Offer higher strength shipbuilding steels as standard .High strength steels offer significant cost advantages by reducing the weight of the structure in comparison to the steel used. The plates are suitable for use in the construction of container ships and large cargo freighters as well as commercial shipping lines such as luxury cruise ships and ferries.

Supply options include heavy plates, surface treated plates and pre-fabricated sections. In most cases, the steel can also be supplied as hot rolled coils or cut into lengths (sheets).

  • Thickness:1.2~200 mm
  • Width:50~4020 mm
  • Length:50~18000 mm
  • Steel Grade:A,B,D,E,A32,D32,E32,A36,D36,E36,A40,D40,E40
  • Capable Classification Society Quality Authentication from LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS

1. Grade and Chemical Composition (%)

Grade C%≤ Mn % Si % p % ≤ S % ≤ Al % Nb % V %
A 0.22 ≥ 2.5C 0.10~0.35 0.04 0.40
B 0.21 0.60~1.00 0.10~0.35 0.04 0.40
D 0.21 0.60~1.00 0.10~0.35 0.04 0.04 ≥0.015
E 0.18 0.70~1.20 0.10~0.35 0.04 0.04 ≥0.015
A32 D32 E32 0.18 0.70~1.60 0.90~1.60 0.90~1.60 0.10~0.50 0.04 0.04 ≥0.015
A36 D36 E36 0.18 0.70~1.60 0.90~1.60 0.90~1.60 0.10~0.50 0.04 0.04 ≥0.015 0.015~0.050 0.030~0.10

Mechanical Properties:

Grade Thickness
(mm)
Yieldpoint
(Mpa) ≥
Tensile Strength
(Mpa)
Elongation
(%)≥
V-impact test cold bend test
Temperature
(℃)
Average AKV
A kv /J
b=2a
180°
b=5a
120°
lengthways crosswise
A ≤50 235 400~490 22 d=2a
B 0 27 20 d=3a
D -10
E -40
A32 ≤50 315 440~590 22 0 31 22 d=3a
D32 -20
E32 -40
A36 ≤50 355 490~620 21 0 34 24 d=3a
D36 -20
E36 -40

2. 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

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

3. 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

 

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