What is D36 Shipbuilding Steel Plate?
D36 shipbuilding steel plate is a high-strength, thermo-mechanically controlled or normalized marine-grade steel plate. It is part of the D-grade family (A, B, D, E) specified by classification societies such as DNV, ABS, LR, BV, CCS, and KR.
Key characteristics
Minimum yield strength: 355 MPa (51,000 psi)
Tensile strength: 490–620 MPa
Impact test temperature: -20°C (-4°F)
Excellent weldability & crack resistance
D36 is widely used for ship hulls, offshore platforms, floating docks, coastal structures, and heavy marine equipment.
Why Choose D36 for Your Marine Project?
One-stop steel procurement
Higher strength-to-weight ratio than general strength ship plates – allows lighter hulls.
Low-temperature toughness – critical for vessels in cold seas (North Sea, Baltic, Arctic routes).
Superior weldability – suitable for automatic and manual welding processes.
Corrosion-resistant design when combined with marine coatings.
Approved by all major classification societies – reduces project approval time.
Get quotations within 24 hours
Technical Specifications
| Parameter | Value |
|---|---|
| Standard | ASTM A131 / A131M, JIS G3126 |
| Grade | D36 |
| Thickness | 5 mm – 150 mm |
| Width | 1500 mm – 4500 mm |
| Length | 6000 mm – 18000 mm (custom available) |
| Yield Strength (min) | 355 MPa |
| Tensile Strength | 490 – 620 MPa |
| Elongation (%) | 21% min |
| Impact Temp | -20°C (27J min) |
| Delivery Condition | AR, N, TMCP |
Detailed description
What These Numbers Mean for Your Shipyard
Higher Strength-to-Weight Ratio – Lighter Hulls, Lower Costs
D36 offers a minimum yield strength of 355 MPa – approximately 42% stronger than general strength marine steel (e.g., Grade A at 235 MPa).
Excellent Low-Temperature Toughness – Reliable in Harsh Marine Environments
D36 is impact-tested at -20°C (-4°F) with minimum absorbed energy of 27J (Charpy V-notch).
Superior Weldability – Faster Fabrication, Fewer Defects
D36 is manufactured with low carbon equivalent (CEV) , typically ≤0.38% , and can be delivered in:
As-rolled (AR)
Normalized (N)
Thermo-mechanically controlled processed (TMCP)
Approved by All Major Classification Societies – Global Project Acceptance
D36 steel plate is pre-approved by the world's leading marine authorities:
ABS (American Bureau of Shipping)
DNV (Det Norske Veritas)
LR (Lloyd's Register)
BV (Bureau Veritas)
NK (ClassNK)
CCS (China Classification Society)
KR (Korean Register)
RINA (Registro Italiano Navale)
Summary Table – D36 Advantages at a Glance
| Advantage | Key Metric | Direct Benefit |
|---|---|---|
| High strength | Yield ≥355 MPa | Lighter hull, lower cost |
| Low-temp toughness | 27J @ -20°C | Arctic/offshore safety |
| Weldability | CEV ≤0.38% | Faster fabrication, fewer cracks |
| Global approvals | ABS, DNV, LR, BV, etc. | No re-certification delays |
Where is D36 Steel Plate Used?
🚢 Shipbuilding – hull structures, cargo holds, decks, bulkheads
01
🛳️ Ship repair & retrofit
02
High market share
🌊 Offshore platforms – legs, bracings, helidecks
03
🏗️ Floating production storage and offloading vessels (FPSO)
04
🏭 Coastal infrastructure – quays, piers, lock gates
05
Why Buy D36 from Us?
✅ Competitive mill-direct pricing – no middlemen
✅ Large inventory – 5000+ MT in stock
✅ Fast lead time – 7–15 days for standard sizes
✅ Technical support for plate selection & welding procedure qualification
✅ Sample testing available on request
ISO 9001:2015 Certification | Serving over 30 countries worldwide | 15+ Shipyard Approved Suppliers
one-stop solution
professional team
high quality
our Partners
We trusted by
Mr. Lee
Mr.Carlos
Mr. Ahmed
FAQ
01.What is the difference between D36 and A36 steel?
02.Can D36 be welded to EH36?
03.Do you have DNV-certified D36 in stock?
04.Do you cut to size?
Hot Tags: d36 shipbuilding steel plate, China d36 shipbuilding steel plate suppliers, retail shipbuilding steel plate, stock shipbuilding steel plate, tugboat steel plate
