ABS Grade E Shipbuilding Steel Plate

1. What is ABS Grade E Shipbuilding Steel Plate?

ABS Grade E shipbuilding steel plates are certified by the American Bureau of Shipping (ABS) and are high-quality structural steels specifically designed for the construction of vessels and offshore structures operating in cold waters, meeting the stringent technical requirements of the maritime industry. The ‘E’ in ABS Grade E denotes excellent low-temperature impact performance, requiring the steel to pass the Charpy V-notch impact test at -40°C. This characteristic distinguishes it from lower-grade shipbuilding steel plates, ensuring reliable safety performance in cold and harsh marine environments. ABS Grade E shipbuilding steel plates are widely used in the manufacture of critical structural components such as hulls, decks and offshore platforms, providing stable structural support for various vessels and offshore facilities operating in cold waters.

ABS Grade E shipbuilding steel plates are specifically designed for vessels and offshore engineering equipment operating in cold waters. They exhibit excellent impact toughness at -40°C, making them suitable for demanding environments such as ice-class vessels, offshore platforms, critical hull structures and marine equipment in cold and harsh marine conditions. In addition to its excellent low-temperature impact resistance, ABS Grade E shipbuilding steel plate also offers good weldability and complies with the highest safety and regulatory standards in the global maritime industry.

2. Advantages of the ABS Grade E shipbuilding steel plates we supply

2.1 ABS Certification and Stringent Standards

Our ABS Grade E steel plates have been fully certified by the American Bureau of Shipping (ABS) and comply with the requirements of GB/T 712 and ABS specifications, ensuring consistent quality and global applicability. Furthermore, we support third-party testing to meet your bespoke quality verification requirements.

2.2 Excellent Low-Temperature Toughness

Through optimised chemical composition and advanced production processes, the steel plates maintain excellent toughness even at -40°C, with an average impact energy of no less than 27 J across three test specimens, effectively preventing brittle fracture in polar or high-latitude cold waters.

2.3 Outstanding Mechanical Properties

The steel plates have a minimum yield strength of 235 MPa, a tensile strength range of 400–520 MPa, and an elongation after fracture of no less than 22%. Their high load-bearing capacity enables them to withstand harsh marine conditions such as wave impact and structural stress.

2.4 Strong Corrosion Resistance

Through strict control of harmful elements such as sulphur and phosphorus, combined with optional surface anti-corrosion treatments, the steel plate exhibits excellent resistance to corrosion in marine salt spray and humid environments.

2.5 Good Weldability and Workability

With a low carbon equivalent (CEV ≤ 0.40%), the steel plate is suitable for a variety of welding processes, ensuring stable welded joints and facilitating the efficient construction of complex ship structures. We also offer custom cutting services according to drawings.

Chemical Composition (Heat Analysis, wt %)

Carbon Equivalent (wt %)

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

Tensile test properties

Impact energy KV2 (Charpy V-notch Impact Test)

The key advantage of ABS Grade E shipbuilding steel plates lies in their excellent low-temperature toughness, enabling them to maintain reliable mechanical properties even in the harsh conditions of -40°C and effectively resist brittle fracture. They are primarily used in the manufacture of critical hull structures, vessels operating in polar and low-temperature environments, and offshore engineering equipment.

1. Critical Hull Structures

As Grade E steel plates retain excellent impact toughness even at -40°C, they are widely used in structural areas of ships where stress levels are high and safety requirements are most stringent:

a) Sheer Strake: Located at the junction of the top of the hull sidewall and the deck, it bears significant longitudinal bending moments.

b) Stringer Plates: A primary load-bearing component ensuring deck strength.

c) Keel Plates: A core component of the ship’s longitudinal framework.

d) Corner Areas: Such as hatch corners, where the material prevents low-temperature brittle fracture caused by stress concentration.

2. Ships Operating in Ice-Covered Waters and Icebreakers

For vessels operating in polar or sub-polar waters, the hull plating must withstand impacts from ice and endure extremely low ambient temperatures.

a) Bow Reinforcement Area: Grade E is the material of choice for the bow plating of icebreakers and reinforced ice-class vessels (Ice Class Vessels).

b) External structural components: Deck fittings exposed to cold sea winds and spray.

3. Offshore Engineering and Drilling Rigs

In harsh offshore environments, structural failure can have serious consequences.

a) Jack-up rigs and legs: The supporting structures of drilling rigs, subjected to long-term wave impact and low-temperature corrosion.

b) Helicopter decks: Require lightweight structural supports with high toughness.

c) Pressure vessel supports: Bases supporting large marine engineering equipment.

4. Cryogenic Liquid Carriers (LPG / LNG)

For vessels transporting certain cryogenic cargoes, Grade E may be used to construct secondary barriers or supporting structures adjacent to cryogenic cargo holds, serving a safety protection function.

Why choose our ABS Class E shipbuilding steel plates?

As a reliable supplier of ABS Class E shipbuilding steel plates, we help ensure the successful completion of your projects through the following core strengths.

1. Professional manufacturing capabilities

We operate a rigorous quality control system, and our high-end shipbuilding steel plate products have obtained multiple international certifications, ensuring a stable supply and consistent quality.

2. Ample Stock and Prompt Delivery

We maintain substantial stock of ABS Class E shipbuilding steel plates in various specifications, enabling us to respond swiftly to urgent orders. With extensive experience in international logistics, we offer short lead times.

3. Customised Solutions

Based on your project drawings and technical requirements, we provide customised services including cutting, processing and delivery specifications, tailoring the most suitable ABS Class E steel plate solution for your needs.

4. Significant Price Advantage and Excellent Value for Money

We offer high-quality ABS Class E shipbuilding steel plates at competitive prices. Whilst guaranteeing product performance, we help you control project costs and enhance your market competitiveness.

5. Comprehensive After-Sales Service

We have a professional after-sales team providing a one-stop service ranging from pre-sales consultation and product inspection to post-sales technical support. We respond promptly to your queries and requirements to ensure the smooth progress of your project.

• Applications of ABS Grade E marine steel plates: hulls, decks, bulkheads, offshore engineering and specialised vessels

• An in-depth analysis of the key differences between ABS Grade E and Grade A

• Key Differences Between ABS Grade E and A/B/D Shipbuilding Plates: Low-Temperature Toughness

• Welding Properties and Key Process Considerations for ABS Grade E Shipbuilding Steel Plates