CCS A shipbuilding plate Product Description
CCS Grade A Shipbuilding Steel Plate: Properties and Applications
CS grade A marine grade shipbuilding steel CCSA plate stock resources in China:
| Grade | Thk (mm) | W (mm) | L (mm) | Grade | Thk (mm) | W (mm) | L (mm) | |
| CCSA | 10 | 2000 | 5600 | CCS grade A | 18 | 1850 | 8500 | |
| CCSA | 10 | 2200 | 10000 | CCS grade A | 19 | 2000 | 10000 | |
| CCSA | 10 | 2200 | 8500 | CCS grade A | 20 | 2300 | 8650 | |
| CCSA | 10 | 2200 | 8100 | CCS grade A | 22 | 2210 | 8370 | |
| CCSA | 100 | 2300 | 10200 | CCS grade A | 22 | 1800 | 6000 | |
| CCSA | 12 | 3220 | 6630 | CCS grade A | 24 | 1850 | 7500 | |
| CCSA | 12 | 1850 | 11670 | CCS grade A | 24 | 2450 | 10800 | |
| CCSA | 12 | 2500 | 11200 | CCS grade A | 28 | 1540 | 12760 | |
| CCSA | 12 | 2200 | 8100 | CCS grade A | 28 | 1800 | 8000 | |
| CCSA | 13 | 2230 | 13190 | CCS grade A | 30 | 2140 | 8000 | |
| CCSA | 13 | 2310 | 19660 | CCS grade A | 35 | 2260 | 7400 | |
| CCSA | 14 | 1990 | 9160 | CCS grade A | 60 | 2400 | 11400 | |
| CCSA | 14 | 2370 | 11920 | CCS grade A | 70 | 2600 | 12000 | |
| CCSA | 14 | 2340 | 11920 | CCS grade A | 70 | 2250 | 11600 | |
| CCSA | 14 | 2200 | 9800 | CCS grade A | 8 | 1250 | 10850 | |
| CCSA | 16 | 2240 | 12210 | CCS grade A | 80 | 2750 | 12000 | |
| CCSA | 16 | 2080 | 12200 | CCS grade A | 9 | 2600 | 5300 | |
| CCSA | 18 | 2530 | 9450 | CCS grade A | 90 | 2250 | 10800 | |
| CCSA | 18 | 1880 | 9400 | CCS grade A | 92 | 1860 | 6200 |
1. Introduction
CCS Grade A is a mild steel widely used in shipbuilding, approved by the China Classification Society (CCS). It serves as a general-purpose structural steel for hulls, decks, and non-critical components where high strength is not the primary requirement.
2. Mechanical Properties
Yield Strength: ≥235 MPa
Tensile Strength: 400-520 MPa
Elongation (%): ≥22 (L=5d)
Impact Energy: ≥27J at 0°C (standard)
Compared to DH32/DH36, Grade A has lower strength but superior ductility, making it ideal for secondary structures where weldability and formability are prioritized.
3. Chemical Composition
Carbon (C): ≤0.21%
Manganese (Mn): 0.60-1.60%
Silicon (Si): ≤0.35%
Phosphorus (P) & Sulfur (S): ≤0.035% each
Its low carbon content ensures excellent weldability, reducing the risk of hydrogen-induced cracking.
4. Applications
Non-critical hull sections (e.g., ballast tanks, bulkheads)
Deck plating (in non-load-bearing areas)
Offshore platforms and inland vessels
5. Industry Standards & Certifications
CCS Rules for Steel Ships
GB/T 712-2011 (Chinese National Standard)
ABS, DNV, LR (alternative certifications available)
6. Advantages & Limitations
Pros:
Cost-effective compared to high-strength steels
Easy fabrication (cutting, bending, welding)
Cons:
Not suitable for high-stress areas (e.g., bow, stern)
Lower corrosion resistance (requires protective coatings)
Conclusion
CCS Grade A is a versatile, economical steel ideal for non-critical ship structures. While it lacks the strength of DH32/DH36, its superior ductility and weldability make it indispensable in cost-sensitive maritime projects. Proper corrosion protection ensures its longevity in marine environments.
Product parameters of ship panels
GNEE is specialized in supplying CCS normal strength steel plate in CCS Grade A. For more information of Grade A steel plate, please check them in following:
CCS/A Normal Strength Max Chemical Composition in Hot-rolled
|
Element |
CCS A Max % |
Element |
CCS A Max % |
|
C |
0.21 |
Ni |
|
|
Mn |
2.5*C MIN |
Mo |
|
|
Si |
0.50 |
Al |
|
|
S |
0.035 |
Nb |
|
|
P |
0.035 |
V |
|
|
Cu |
|
Ti |
|
|
Cr |
|
N |
|
Crack Sensitivity: Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
CCS/A Normal strength property in Hot-rolled
|
Grade |
Thickness |
Yield Strength |
Tensile Strength |
Elongation |
Impact Energy |
|
(mm) |
MPa (min) |
MPa |
% (min) |
(KV J) (min) |
|
|
|
|
|
|
20 degree |
|
|
CCS A |
8-240 |
235 |
400-520 |
22 |
|
Note: the impact energy under less 50mm thickness; longitudinal min impact energy
Boiler steel plates| Alloy steel plates| High strength plate| Carbon steel plate| Stainless steel plate
|
Equivalent steel grade of CCS/A |
|||||||
|
DNV |
GL |
LR |
BV |
RINA |
NK |
KR |
ABS |
|
NV A |
GL-A |
LR/A |
BV/A |
RI/A |
K A |
R A |
AB/A |
|
CCS Steel Plate Grade |
||||
|
General Strength |
CCS/A |
CCS/B |
CCS/D |
CCS/E |
|
High Strength |
CCS/A32 |
CCS/D32 |
CCS/E32 |
CCS/F32 |
|
CCS/A36 |
CCS/D36 |
CCS/E36 |
CCS/F36 |
|
|
CCS/A40 |
CCS/D40 |
CCS/E40 |
CCS/F40 |
|
|
Extra Strength |
CCS/A420 |
CCS/D420 |
CCS/E420 |
CCS/F420 |
|
CCS/A460 |
CCS/D460 |
CCS/E460 |
CCS/F460 |
|
|
CCS/A500 |
CCS/D500 |
CCS/E500 |
CCS/F500 |
|
|
CCS/A550 |
CCS/D550 |
CCS/E550 |
CCS/F550 |
|
|
CCS/A620 |
CCS/D620 |
CCS/E620 |
CCS/F620 |
|
|
CCS/A690 |
CCS/D690 |
CCS/E690 |
CCS/F690 |
|
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GNEE Group's Photo Of Receiving Visiting Customers
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