Hot rolled shipbuilding steel is produced in accordance with the relevant 
Classification 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 |