ABS Marine Steel Plate
ABS ship plates offer outstanding marine-grade comprehensive performance, making them the material of choice for demanding maritime and heavy-load structural applications.
GNEE offers ABS EH series marine steel plates with immediate stock availability to ensure zero delivery delays, featuring a low carbon equivalent (<0.35%) for efficient welding without preheating, 100% guaranteed ABS surveyor inspection and UT compliance (with a full return/replacement policy), and one-stop pre-treatment services including shot-blasting, painting, and precision cutting.
As a professional steel manufacturer and global supplier since 2008, GNEE specializes in high-quality shipbuilding and offshore steel plates certified by major classification societies.
Our ABS marine steel plates are widely used in shipbuilding, offshore platforms, and marine engineering projects worldwide. Understanding ABS Marine Steel Plate specifications, properties, and applications helps ensure your project meets strict safety and durability standards.
ABS MTC
The grades of ABS standard hull plate we can provide include
|
ABS Steel Plate Grade |
||||
|
General Strength |
AB/A |
AB/B |
AB/D |
AB/E |
|
High Strength |
AB/AH32 |
AB/DH32 |
AB/EH32 |
AB/FH32 |
|
AB/AH36 |
AB/DH36 |
AB/EH36 |
AB/FH36 |
|
|
AB/AH40 |
AB/DH40 |
AB/EH40 |
AB/FH40 |
|
|
Extra Strength |
AB/AQ43 |
AB/DQ43 |
AB/EQ43 |
AB/FQ43 |
|
AB/AQ47 |
AB/DQ47 |
AB/EQ47 |
AB/FQ47 |
|
|
AB/AQ51 |
AB/DQ51 |
AB/EQ51 |
AB/FQ51 |
|
|
AB/AQ56 |
AB/DQ56 |
AB/EQ56 |
AB/FQ56 |
|
|
AB/AQ63 |
AB/DQ63 |
AB/EQ63 |
AB/FQ63 |
|
|
AB/AQ70 |
AB/DQ70 |
AB/EQ70 |
AB/FQ70 |
|
ABS standards marine sheet mechanical property
| ABS Grade | Tensile Strength (KSI) | Yield Point (KSI) | Min. 2" Elongation % |
|---|---|---|---|
| Grade A | 58-75 | 34 | 22 |
| Grade B | 58-75 | 34 | 22 |
| Grade D | 58-75 | 34 | 22 |
| Grade E | 58-75 | 34 | 22 |
| Grade AH32 | 64-85 | 46 | 20 |
| Grade DH32 | 64-85 | 46 | 20 |
| Grade EH32 | 64-85 | 46 | 20 |
| Grade FH32 | 64-85 | 46 | 20 |
| Grade AH36 | 71-90 | 51 | 20 |
| Grade DH36 | 71-90 | 51 | 20 |
| Grade EH36 | 71-90 | 51 | 20 |
| Grade FH36 | 71-90 | 51 | 20 |
GNEE group available sizes
| THICKNESS | WIDTH | LENGTH | |
| GRADE A | 1/4" – 4" | 48" – 120" | UP TO 480" |
| GRADE B | 1/4" – 4" | 48" – 120" | UP TO 480" |
| GRADE D | 1/4" – 4" | 48" – 120" | UP TO 480" |
| GRADE E | 1/4" – 4" | 48" – 120" | UP TO 480" |
| GRADE AH36 | 1/4" – 4" | 48" – 120" | UP TO 480" |
| GRADE DH36 | 1/4" – 4" | 48" – 120" | UP TO 480" |
| GRADE EH36 | 1/4" – 4" | 48" – 120" | UP TO 480" |
| GRADE FH36 | 1/4" – 4" | 48" – 120" | UP TO 480" |
Key Advantages of ABS Marine Steel Plate
Superior Strength & Toughness (Higher Baseline Requirements)
- Wider low-temperature toughness coverage: Mandatory impact testing at 0°C (Grade A), -20°C (D), -40°C (E), -60°C (F)-critical for Arctic/ice-class vessels.
- Unique DWTT (Drop Weight Tear Test): ABS uniquely requires DWTT for Arctic-class steel to prevent brittle fracture under extreme cold/impact-beyond standard Charpy V-notch tests used by most others.
- Better fatigue resistance: Explicit 10⁷-cycle corrosion-fatigue testing for high-strength grades (AH36/EH40) to resist wave-induced cyclic stress-more stringent than DNV/BV fatigue rules.
Strict Chemical & Process Control (Weldability & Durability)
- Tighter Ceq (carbon equivalent) limits: Lower max Ceq for HSLA steels to ensure excellent weldability (less preheat, fewer cold cracks) vs. many competing class rules.
- Lower S/P: Ultra-low sulfur (<0.035%) and phosphorus controls for cleaner steel, higher ductility, and corrosion resistance.
- Mandatory Z-direction performance (≥40mm thick): Thicker plates require Z-direction testing to resist lamellar tearing during heavy fabrication-more widely enforced than DNV (≥30mm) or CCS.
- Full-process mill surveillance: ABS surveyors witness entire production + testing (hot rolling, heat treatment, NDT) with full traceability per heat/lot.
Applications of ABS Marine Steel Plate
1. Commercial Shipping Vessels (Bulk Carriers, Oil Tankers, Container Ships)
Core Applications: Hull structure, oil tanks, hatch covers, main load-bearing components
ABS Superiority: Grade A yield strength ≥300MPa (exceeding CCS A), mandatory 10⁷-cycle fatigue test (stricter than DNV/BV), Z-direction test for plates ≥40mm, excellent weldability & corrosion resistance, lower maintenance cost and longer service life.
2. Arctic & Ice-Class Vessels (Icebreakers, Arctic Cargo Ships)
Core Applications: Ice-breaking hull, anti-ice structures, cargo holds
ABS Superiority: World-leading ice-class standards, exclusive DWTT test, low-temperature verification down to -60℃ (exceeding -40℃ of most societies), resistant to ice impact and brittle fracture for extreme Arctic environments.
3. Offshore Structures (Jack-Up Rigs, FPSOs, Offshore Wind Foundations)
Core Applications: Jack-up leg structures, FPSO hulls, offshore wind turbine foundations
ABS Superiority: Authoritative offshore standards, stricter fatigue testing for high-strength plates, supports 700mm extra-thick plates (vs. 500mm of others), strict Ceq control, full-process supervision, resistant to extreme offshore loads and corrosion.
4. Naval Vessels (Warships, Patrol Boats)
Core Applications: Warship hulls, armor plates, patrol boat structures
ABS Superiority: Tensile strength up to 630MPa, mandatory low-temperature & DWTT tests, stricter full-process quality control (vs. CCS/LR), balances strength, impact resistance and lightweight, easy to fabricate and maintain.
Equivalent Grades of ABS Marine Steel Plate
| ABS Grade | ASTM Equivalent | EN Equivalent | CCS Equivalent |
|---|---|---|---|
| ABS A | ASTM A131 A | S235JR | CCS A |
| ABS AH36 | ASTM A131 AH36 | S355 | CCS AH36 |
| ABS DH36 | ASTM A131 DH36 | S355 | CCS DH36 |
| ABS EH36 | ASTM A131 EH36 | S355 | CCS EH36 |
Comparison Within ABS Grades
| Grade | Strength Level | Impact Temp | Application |
|---|---|---|---|
| A | Normal | No impact | Mild environments |
| D | Normal | -20°C | Moderate cold |
| E | Normal | -40°C | Severe cold |
| AH36 | High | 0°C | Structural high load |
| EH36 | High | -40°C | Extreme offshore |
FAQ – ABS Marine Steel Plate
What does ABS certification mean?
ABS certification ensures the steel meets strict marine safety and quality standards set by the American Bureau of Shipping.
What is the difference between A36 and AH36 steel?
In this condition, ASTM AH36 steel and A36 steel is totally the same. However, at most times, ASTM A36 steel means another steel type, it is A36 mild steel. A36 mild steel is for general construction, seldom used for ship building. A36 mild steel strength is lower than ASTM AH36 shipbuilding steel strength.
What is the ABS grade eh36 equivalent to?
Abs eh36 specification can be formed with hot rolled, cold rolled, 2b, 2d, ba no 8, and satin finish type. They have soft, hard, half hard, quarter hard, and spring hard hardness. The abs eh36 equivalent is the dnv nv 236, gl-e36, le/eh36, k e36, r e36, etc.
What is the difference between ABS Grade A and A36?
A36 and ABS Grade A are two commonly used steel grades, but they are intended for different applications. A36 is a standard structural steel, while ABS Grade A is certified for marine applications. The following table summarizes their key chemical and mechanical properties.
Is S355 equivalent to EH36?
DH36 and EH36,ABS Grade DH36 and ABS Grade EH36 are both ok for replacing of S355J2+N. Second we can suggest you choose alloy structural steel ASTM A572Gr50 (minimum yield strength 345 MPa, Tensile above 450 MPa).
Can ABS steel plates be used offshore?
Yes, they are widely used in offshore platforms and oil & gas structures.
What thickness range is available?
Typically from 6 mm to 150 mm, customizable based on project requirements.
Is third-party inspection available?
Yes, ABS, BV, DNV, SGS, and other inspections are supported.
What is the delivery condition?
Hot rolled, controlled rolled, or normalized.
Can you provide cutting services?
Yes, CNC cutting, drilling, and welding services are available.
How about corrosion protection?
Plates can be supplied with shot blasting and primer coating.
What is ABS AH36 material?
ABS Grades AH36, DH36, and EH36 are higher-strength structural steels with a minimum specified yield strength of 51 ksi and specified minimum Charpy Vnotch impact toughness properties. Typical applications include shipbuilding and mobile offshore drilling units and structures.
Why Choose GNEE STEEL for ABS Marine Steel Plate?
- 18+ years of export experience
- Strong supply chain with stable inventory
- Competitive pricing with factory-direct supply
- Strict quality control & international certifications
- Fast delivery and global logistics support
- One-stop processing services (cutting, welding, machining)
Conclusion
ABS Marine Steel Plate is the ideal choice for shipbuilding and offshore engineering thanks to its certified strength, toughness, and durability. Whether for commercial vessels or complex offshore platforms, choosing the right grade ensures long-term safety and performance.
Looking for reliable ABS Marine Steel Plate supplier?
GNEE STEEL offers:
- Full range of ABS grades (A, AH32, AH36, DH36, EH36)
- Custom sizes & fast delivery
- Competitive pricing for global projects
👉 Send us your requirements today (grade, size, quantity), and get a fast quotation within 24 hours!
ABS standards metal used in shipbuilding product image
GNEE group team photo
GNEE group customer visit
GNEE Group participates in foreign steel exhibitions
We have excellent after-sales service. If you have any questions about ABS Marine Steel Plate, you can contact us and we will reply to you within two hours.
Relying on many first-class equipment, such as CNC Shearing machine, Press Brake machine, Straightening machine, Roll Bending machine, Flat Bar Machine, Deburring machine etc, GNEE STEEL could provide various semi-productsand extensive forming services to customers.
GNEE STEEL PROCESSING
1.CTL & SL SERVICE (141 SETS)
Currently, GNEE STEEL has imported manyadvanced CTL/SL equipment from Italy and Korea and could provide customized CTL/SL services from cold rolled stainless steel and carbon steel to hot rolled stainless steel and carbon steel as well as strips and ultra-wide sheet.
CTL FACILITIES
Max Length:16500mm
Max Width:2200mm
Max Thickness:25.4mm
Max Yield Strength:1500Mpa
SL FACILITIES
Max Width:2200mm
Max Thickness:18mm
Max slit Quantity:31
Max Yield Strength:1200Mpa
2.CUTTING SERVICE
GNEE STEEL imported lots of advanced cutting machines from Germany, Sweden, America and Japan, including plasmas cutting machine, water jet cutting machine, laser cutting machine, flame cutting machine and saw machine. In order to meet customers' diversified needs, GNEE STEEL also adopts nest working multi-cutting methods and intensive production to improve production capacity and save costs for the customers.
Laser Cutting Machine
Max Cutting Length:40,000mm
Max Width:4,600mm
Max Thickness:100mm
Flame Cutting Machine
Max Cutting Length:40,000mm
Max Width:8,000mm
Max Thickness:500mm
Plasmas Cutting Machine
Max Cutting Length:30,000mm
Max Width:5,000mm
Max Thickness:100mm
Water-jet Cutting
Max Cutting Length:12,000mm
Max Width:4,010mm
Max Thickness:250mm
3.FORMING SERVICE
Steel Plate Roll Bending
Maximum Rolling Thickness: up to 200mm
Maximum Width: 4200mm
Automatic Bending Machine-Press Brake
Max Bending Capability:3000Ton
Max Bending Length:15,000mm
Expert in Bending High-Strength & Wear-Resistant Steels
Punching Machine
Max Width:3,070mm
Max Thickness:8mm
Max Pressure:250t
BEVELING SERVICE
GNEE STEEL beveling platform has edge milling machine, edge planer, flame / plasma groove cutting machine, flame groove cutting robot, desktop chamfering machine, gantry planerand other advanced equipment to provide customers with parts prefabrication services,daily processing of V-type, Y-type, X-type and U-type grooves, and guarantee subsequent processes such as welding and assembly of products.
Milling：
Max Cutting Length:18,000mm
Max Width:4500mm
Max Thickness:120mm
Beveling:
Max Length:16,000mm
Max Thickness:80mm
MACHINING SERVICE
GNEE STEEL owns CNC Portal-type Boring and Milling machine,CNC Floor-type Boring and Milling machine, Vertical Precision 5-axis Milling Machine, Portal-type Planer, Vertical Lathe, Cylindical Grinding machine, Hydraulic Planer and CNC Lathe and could provide fine machining of large spare parts and structural parts for customers.
Gantry Type Boring & Milling Maching Center
Max Length:48000mm
Max Width:12500mm
Max Height:8000mm
Max Diameter:10500mm
Deep-hole Drilling Equipment
Max Driling Depth:1,100mm
Max Bore Diameter:φ80mm
Max Diametar:φ4,500mm
MMulti-hole Drilling Equipment
Max Length:13,000mm
Max Width:10,000mm
Max Bore Diameter:φ105mm
Max Drilling Depth:250mm
Floor Boring And Milling Machine
Max Length:24,000mm
Max Height:8,000mm
Turntable Dimensions:9x5m
Vertical Lathe
Max Height:6,000mm
Max Diametar:φ22,00mm
Automated Edge Milling Machine
The Automated Edge Milling Machine is a leading product in heavy-duty milling equipment. It is primarily used for weld groove preparation (beveling) on large-format plates made of stainless steel, carbon steel, and special steel grades. It can process plates with a maximum thickness of up to 90mm, a length of 16 meters, and a width of 4 meters.
It is equipped with dual milling units and a fully automatic milling cutter head changing system, enabling automated 4-edge beveling. Its standout feature is the profiling technology used when milling wavy plates and irregularly shaped products, which ensures absolute consistency of the groove after milling.
Utilizing specially designed milling cutter heads, it can execute highly difficult and complex groove profiles in a single pass.
Materials: Plain carbon steel, pressure vessel steel, wear-resistant steel, high-strength steel, stainless steel, nickel-based alloys, etc.
Width: 1200 - 4200 mm
Length: 5800 - 16000 mm
Thickness: 5 - 90 mm
Weight: Up to 35 tons
This edge milling machine is the world's premier automated bevel milling equipment. With its excellent structural design and advanced data algorithms, it achieves full automation from plate detection to the actual milling process, significantly improving processing efficiency while guaranteeing high precision.
- Processing Accuracy
Length accuracy: ±1mm when L < 10m; ±2mm when L > 10m;
Width accuracy: ±1mm;
Diagonal accuracy: ±2mm;
Root face accuracy (blunt edge): ±1mm for Y-grooves; +0.5mm for X-grooves.
- Processing Efficiency
The processing efficiency is more than 10 times that of conventional edge milling or edge planing equipment.
HEAT TREATMENT
Heat Treatment Furnace
Max Furnace Size:36x12x13.5m
Max Rated Temperature:1100℃
Max Loading Capacity:800t
Heat Treatment of Pressure Vessels
Heat Treatment of Mining Equipment
Heat Treatment of Tube Sheet
Heat Treatment of Pressure Vessel Head
Case : Steel Plates Supply for 100,000m³ Full Containment Ammonia Storage Tank Project
GNEE STEEL is currently participating in the procurement phase of a 100,000m³ full containment ammonia storage tank project, supplying high-quality steel plates for critical tank components. Due to the corrosive nature of ammonia and the risk of Ammonia Stress Corrosion Cracking (SCC), the project requires strict metallurgical control of materials according to EN 10028-3 standards.
One of the most important technical requirements of this project is the strict limitation of the actual Yield Strength (Re) for all NL2 grade materials. To prevent SCC risks in ammonia storage environments, the actual yield strength must not exceed 390 MPa, regardless of the nominal values specified in the standard or plate thickness ranges. This requirement places higher demands on steelmaking process control, heat treatment stability, and material testing.
Raw high-strength steel plates ready for the 100,000 m³ full containment ammonia storage tank production
Project Materials and Technical Requirements
The project mainly uses P355NL2 and P275NL2 normalized pressure vessel steel plates, which are widely applied in low-temperature storage tanks due to their excellent toughness and weldability.
Key technical specifications include:
- Material grades: P355NL2 and P275NL2 (Normalized)
- Yield strength: Standard minimum / Maximum limited to 390 MPa
- Hardness: ≤ 225 HBW in base material
- Impact testing: Charpy-V notch test at -50°C, minimum 27J
- Certification: EN 10204 3.1 certificate, with optional 3.2 certification
These strict requirements ensure that the steel plates maintain stable mechanical properties and high resistance to ammonia-induced stress corrosion during long-term operation.
Precision rolling and forming of steel plates into curved sections for the 100,000 m³ ammonia storage tank.
Project Plate Quantities and Thickness Distribution
The total steel demand for this ammonia storage tank project is several thousand tons, mainly distributed across different tank sections:
P355NL2 – Inner & Outer Tank Shell Plates
- Lower shell courses: 50 mm thickness – approx. 2,000 tons
- Middle shell courses: 25 mm thickness – approx. 1,400 tons
- Upper shell courses: 10 mm thickness – approx. 500 tons
P275NL2 – Tank Bottom Plates
- Thickness: 10–15 mm – approx. 750 tons
P275NL2 – Suspended Roof Structure
- Thickness: 5–8 mm – approx. 180 tons
S275JR – Outer Roof (Ambient Structure)
- Thickness: 10 mm – approx. 450 tons
To improve tank fabrication efficiency and reduce circumferential welds, the project also requires wide steel plates to minimize welding joints, which helps reduce the potential risk of SCC in ammonia service conditions.
Formed steel segments wrapped and racked for protection, ready for 100,000 m³ ammonia storage tank assembly.
GNEE STEEL provides high-precision steel plate rolling and cylinder fabrication solutions for tank manufacturers worldwide. Send us your plate specifications or fabrication drawings for a fast quotation.
| TYPE | GRADE | SPECIFICATIONS |
| Carbon Steel / Low Alloy Coil | Q235A/B/C/D/Q355B(Q345B)/C/D/E/SS400/SAPH400-C/ASTMA283Grade C |
0.7~2.0*1250/1500mm*C 2.3~19.5*1250/1500/1800/2000mm*C |
| Medium Heavy Plate | Q235B/Q355B(Q345B)/C/D/E | 6.0-200x150mm-4000mmxL |
| Vessel Plate |
Q245R/Q345R/HP295/SA516MGR485/SA516GR70/P355NL2/P275NL2/ S275JR//SPV490/ASTM A537 Class 1/Class 2 |
2.5-120x1500mm-3000mmxL |
| High Strength Steel |
510L/610L/700L/750L/BS600MCK4/BS700MCK2/BS700MCK4/ BS960E/BWELDY700QL2/L4/BWELDY960QL4/HG60D/70D/785D/ Q460D/Q550D/690D/690E/TQ600MCD/TQ700MCD/S700MCD/ WYS600/700/STRENX700MCE/Q490E/Q490D |
1.2-60x 1500mm-2500mmxL |
| Patterned Steel | HQ235A|B | 1.2-60x 1500mm-2500mmxL |
| Wear-resistance Steel |
NM360/400/450/500/NM300TP/400TP/450TP/ ABREX400/450/500/B-HARD450XKY/ CREUSABRO4800/8000/EH C400LE/450LE/500LE/ |
3.0-50x1250mm-3300mmxL |
| Cold Rolled Coil | DC01/RECC/REDT/SPCC/ST12 | 0.5-3.0x1250mm-1500mmxC |
| Galvanized Plate | DC51D+AZ/DC51D+Z/DX51D+Z/SGH340+Z275/Z275/Z120/S350GD+ZM275 | 0.45-3.0x1250mm-1500mmxC |
| Pickled Coil | DD11/SPHC | 2.0-6.0x1500xC |
Stainless Steel Material and Surface Specifications
| TYPE | GRADE | THICKNESS | SURFACE |
| Austenitic | 304/304H/304L/304J1 | 0.25-150mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 321 | 0.4-80mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 316/316L/317L/316Ti | 0.3-80mm | 2B/BA/NO.4/8K/SB/HL/NO.1 |
| Austenitic | 201(J1/J2/J5) | 0.35-12mm | 2B/NO.1/1D |
| Ferrite | 430 | 0.4-3.0mm | 2B/BA/NO.4/8K/SB/HL |
| Ultra Pure Ferrite | 443 | 0.4-2.0mm | 2B |
| Ultra Pure Ferrite | 436L/439/444/441 | 0.5-3.0mm | 2B/2D |
Special Steel / Nickel Base Alloy
| TYPE | GRADE | GRADE (ASTM) | GRADE (EN) | THICKNESS |
| Heat-resistant Steel | 309S | S30908 | 1.4833 | 0.5-40mm |
| Heat-resistant Steel | 310S | S31008 | 1.4845 | 0.5-40mm |
| Duplex Stainless Steel | 2101 | S32101 | 1.4162 | 1.5-50mm |
| Duplex Stainless Steel | 2304 | S32304 | 1.4362 | 3.0-50mm |
| Duplex Stainless Steel | 2205 | S32205/S31803 | 1.4462 | 0.5-60mm |
| Duplex Stainless Steel | 2507 | S32750 | 1.4410 | 1.0-60mm |
| Super Austenitic-Steel | 904L | N08904 | 1.4539 | 0.6-50mm |
| Super Austenitic-Steel | 254SMO | S31254 | 1.4547 | 0.5-50mm |
| Super Austenitic-Steel | 1.4529 | N08926 | 1.4529 | 0.5-50mm |
| Super Austenitic-Steel | AL-6XN | N08367 | 1.4478 | 0.5-50mm |
| Nickel Base Alloy | Alloy 31 | N08031 | 1.4562 | 1.0-50mm |
| Nickel Base Alloy | 800 | N08800 | 1.4876 | 0.8-50mm |
| Nickel Base Alloy | 800H | N08810 | 1.4958 | 0.8-50mm |
| Nickel Base Alloy | 800HT | N08811 | 1.4959 | 0.8-50mm |
| Nickel Base Alloy | Alloy 28 | N08028 | 1.4563 | 1.0-20mm |
| Nickel Base Alloy | Alloy 20 | N08020 | 2.4660 | 1.0-20mm |
| Nickel Base Alloy | 825 | N08825 | 2.4858 | 0.8-40mm |
| Nickel Base Alloy | C276 | N10276 | 2.4819 | 0.5-50mm |
| Nickel Base Alloy | C22 | N06022 | 2.4602 | 1.0-50mm |
| Nickel Base Alloy | 625 | N06625 | 2.4856 | 0.8-20mm |
| Nickel Base Alloy | 400 | N04400 | 2.4360 | 1.0-20mm |
| Nickel Base Alloy | 600 | N06600 | 2.4816 | 1.0-50mm |
| Nickel Base Alloy | Pure Ni 201 | N02201 | 2.4061 | 0.5-20mm |
| Titanium | TA1 | Gr.1 | Class 1 | 0.5-50mm |
| Titanium | TA2 | Gr.2 | Class 2 | 0.5-50mm |
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