Inquiry Now

CCS Grade AH32 Shipbuilding Steel Plate - High-Strength Marine Steel Plate

info@chinasteelcompany.com 8615837212056 Get a Quote

CCS Grade AH32 shipbuilding steel plate is a high-strength marine structural steel plate certified by the China Classification Society (CCS). It offers stable mechanical properties, excellent toughness at 0°C, good weldability and outstanding corrosion resistance. It is widely used in ship hull structures, decks, bulkheads, offshore platforms and other critical marine components. Our Grade AH32 steel plates are manufactured in accordance with CCS shipbuilding specifications and also comply with the standards of major international classification societies such as ABS, BV, DNV and LR. We offer a comprehensive range of specifications and provide customised processing services to meet diverse marine engineering requirements.

Certification :
CCS Rules
Standard :
GB/T 712
Grade :
CCS Grade AH32 (CSSAH32)
Thickness :
5.0 - 150.0 mm
Width :
1500.0 - 3950.0 mm
Length :
6000.0 - 18000.0 mm

Special thickness, width, and length can be negotiated separately.
We also provide customized processing services.If you have any questions, please contact us.

Overview

1. What is CCS Grade AH32 shipbuilding steel plate?

CCS Grade AH32 shipbuilding steel plate is a high-strength structural steel certified by the China Classification Society (CCS) for use in ships and offshore engineering. It exhibits excellent toughness, weldability, corrosion resistance and stable mechanical properties in extreme marine environments. It is widely used in ship structures such as hulls, decks and bulkheads, as well as in critical structures of offshore platforms.

Our CCS Grade AH32 shipbuilding steel plate utilises advanced TMCP (Thermomechanical Control Process) and normalising heat treatment processes, ensuring high dimensional accuracy and a uniform internal microstructure. It effectively addresses common issues associated with standard ship plates, such as poor impact resistance and unstable weldability, making it an ideal structural material for commercial vessels, cargo ships, container ships and coastal offshore engineering projects.

2. Meaning of the designation

CCS: Certified by the China Classification Society

A: Quality Grade A (Impact test temperature requirement: 0°C)

H: High-strength steel

32: Minimum yield strength: 315 MPa (≈ 32 kgf/mm²)

Available Specifications and Dimensions

Product	CCS Grade AH32 Shipbuilding Steel Plate
Certification	CCS
Grade	AH32
Material Category	Heigh-Strength Structural Steel for Ship and Ocean Engineering
Thickness	5 - 150 mm
Width	1500 - 3950 mm
Length	6000 - 18000 mm
Delivery Conditions	Hot Rolled (HR), Controlled Rolled (CR), Normalized (N), Thermo-Mechanical Controlled Processed (TMCP).
Surface Conditions	We offer surface preparation services such as sandblasting, rust removal, oiling and spray painting.
Testing	Tensile test, Charpy V-notch impact test, Ultrasonic testing (UT), Z-direction property test (Grades Z15/Z25/Z35), Dimensional inspection.
Applications	Suitable for critical structural components such as ship keels, outer plating, bulkheads, decks and offshore oil drilling platforms.
MOQ	50 tons (small orders can be negotiated).
Delivery Time	15 - 20 days after order confirmation (urgent orders accepted).
Packaging	Standard export packaging for sea transport, or as required.
Country of origin	China

Chemical Composition

Chemical Composition (Heat Analysis, wt %)

Grade	C	Si	Mn	P	S	Cu	Cr	Ni	Nb	V	Ti	Mo	Als
CCS AH32	≤ 0.18	≤ 0.50	0.90 - 1.60	≤ 0.030	≤ 0.030	≤ 0.35	≤ 0.20	≤ 0.40	0.02 - 0.05	0.05 - 0.10	≤ 0.02	≤ 0.08	≥ 0.015

Carbon Equivalent (wt %)

Thickness (mm)	5 - 50	50 - 150
Typical CEV (wt %)	≤ 0.36	≤ 0.38

Calculation formula (IIW): CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15

Mechanical Properties

Tensile Test

Grade	Yield Strength (ReH), MPa	Tensile Strength (Rm), MPa	Elongation (A), %
CSS AH32	≥ 315	450 - 570	≥ 22

Charpy (V-notch) Impact Test

Grade	Thickness, mm	Temperature, ℃	Impact Energy, KV₂ / J
Grade	Thickness, mm	Temperature, ℃	Longitudinal	Transverse
CCS AH32	≤ 50	0	≥ 31	≥ 22
	> 50 - 70	0	≥ 38	≥ 26
	> 70 - 150	0	≥ 46	≥ 31

Applications

CCS Grade AH32 shipbuilding steel plate is a high-strength structural steel plate for shipbuilding and offshore engineering, widely used in critical structures across various shipbuilding and offshore engineering sectors:

1. Hull structures for ocean-going vessels, cargo ships, container ships and bulk carriers.

2. Support structures for offshore oil and gas platforms and marine engineering projects.

3. The manufacture of auxiliary shipboard equipment, shipping container floor plates and structural components.

4. Heavy structural components for large port machinery and offshore engineering equipment.

Other Information

What are the advantages of our CCS Grade AH32 shipbuilding steel plates?

1. Authoritative CCS certification, with full accreditation

The products hold valid China Classification Society (CCS) factory certification, and come with complete inspection reports and certification documents.

2. Excellent adaptability to marine environments

Featuring high strength, good ductility and toughness, ensuring the long-term stable operation of ship and offshore platform structures.

3. Excellent welding and machining properties

Low susceptibility to welding cracks, suitable for conventional welding processes such as arc welding and gas shielded welding. The steel plates feature a flat surface and uniform thickness, with good cutting, bending and forming capabilities.

4. Comprehensive range of specifications, with customisation available

We supply CCS Grade AH32 shipbuilding steel plates in a full range of sizes, covering common thicknesses, widths and lengths. We also offer further processing services such as custom cutting, polishing and heat treatment.

FAQ

# 1Q:Can you provide custom sizes and the relevant certifications?

Yes. We can produce custom sizes to any dimensions and adjust the heat treatment process accordingly. We can also provide CCS certification, third-party inspection reports and a full set of export documentation.