Products FAQ
What precautions should be taken when welding ABS Grade A marine steel plates?
1. Selection of welding consumables: Electrodes or welding wire should be selected from marine-grade welding materials that match the strength grade of the base metal.
2. Preheating requirements: For thick plates exceeding 25 mm in thickness, it is recommended that the preheating temperature be maintained between 80–120°C.
3. Carbon equivalent control: With a carbon equivalent (CEV) ≤ 0.40%, the steel exhibits moderate susceptibility to cold cracking.
4. Welding procedure: Strictly control the heat input during welding and avoid excessive heat input per unit length.
What is the difference between ABS Grade A, B, D and E?
The yield strength (≥235 MPa) and tensile strength of ABS Grades A, B, D and E are identical (400–520 MPa).
The key difference lies in their impact temperature:
Grade A at 20°C (room temperature), Grade B at 0°C, Grade D at –20°C and Grade E at –40°C.
In which parts of a ship is ABS Grade A marine steel plate primarily used?
Inner compartments, bulkheads, frames, decks (non-high-stress areas), superstructures, hull plates for vessels operating in inland waterways and mild seas, and non-critical structural components (such as platforms and walkways).
What are the common specifications and dimensions of ABS Grade A steel plates you supply from China?
| Grade | ABS Grade A |
|---|---|
| Thickness | 5.0 - 150.0 mm |
| Width | 1500.0 - 4000.0 mm |
| Length | 6000.0 - 18000.0 mm |
| Heat Treatment | plate thickness ≤ 40 mm: Controlled Rolled / Hot Rolled |
| plate thickness ≥ 40 mm: Normalized / TMCP | |
| Country of origin | China |
What is the minimum order quantity (MOQ) for ABS steel plates?
We accept small-volume orders, with a minimum order quantity of 5 tons.
Do you offer shot blasting and primer coating?
Yes, we offer shot blasting to SA2.5 standard and high-quality shop primer coating.
What is the difference between ABS Grade A and Grade B?
Both grades are ordinary-strength marine steels with identical yield and tensile strengths, but ABS Grade B undergoes impact testing at 0°C, whereas Grade A typically does not require a specific impact test temperature, making Grade B more suitable for colder environments or high-stress zones.
