- sales@hindustansteel.com
- 390/392, Ground Floor, Shankar Mansion, Vanita Vishram Chowk, S.V.P. Road, Mumbai - 400004
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+91-9820944724
+91-9820944724
Home > Our Products > High Tensile Steel Plates > Application > Offshore & Shipbuilding Applications
High Tensile Steel Plates for Offshore & Shipbuilding
What Are Marine-Grade High Tensile Plates?
Marine-grade steel plates are high-strength, corrosion-resistant plates engineered for extreme marine conditions, salt spray exposure, and structural demands of both static offshore rigs and dynamic ship hulls.
Hindustan Steel Corporation supplies certified high tensile plates like ABS EH36, DNV DH36, API 2H Grade 50, and S355G10+N for critical use in shipbuilding, oil & gas offshore platforms, FPSO decks, and substructures.
From sea to shore, these plates are vital for:
They resist saline corrosion, tidal fatigue, and heavy structural loads in both surface and subsea environments.
Marine-grade plates must withstand high impact forces, low temperatures, and sea vibration stresses. Below are typical values:
| Grade | Yield Strength | Elongation | Impact Energy (Min) |
|---|---|---|---|
| EH36 | 355 MPa | 22% | > 40J @ -40°C |
| DH36 | 355 MPa | 22% | > 27J @ -20°C |
| API 2H Gr 50 | 345 MPa | 21% | > 42J @ -40°C |
| S355G10+N | 355 MPa | 20–22% | > 27J @ -20°C |
| A131 Grade A | 250 MPa | 24% | Notch tested @ 0°C |
| Element | Max Content (%) |
|---|---|
| Carbon (C) | 0.18 – 0.22 |
| Mn | 1.2 – 1.6 |
| S, P | <0.025 each |
| Si | 0.40 – 0.50 |
| Cu, Cr, Ni | Micro additions for corrosion resistance |
Low phosphorous and controlled carbon content ensure better resistance to corrosion fatigue and longer structural life at sea.
We supply marine plates that meet:
Plates are approved for naval, commercial, and offshore fabrication projects.
We supply plates in:
Heat treatment ensures improved notch toughness, better weldability, and stress-relieved performance in saline environments.
We also offer edge beveling, blasting + shop primer coating for shipyard-ready plates.
We serve:
| Application | Recommended Grade |
|---|---|
| Hull Structure | EH36 / DH36 |
| Offshore Jacket | API 2H Gr 50 |
| Deck & Helipad Platform | S355G10+N |
| Ballast Tank | A131 Grade A / B |
| FPSO & Modular Rigs | EH36 / API 2W |
Yes, it is specifically developed for static offshore structures like jackets and topsides.
EH36 has higher impact toughness and is used in colder or more demanding marine conditions.
Yes, it’s EN 10225 approved for offshore steel structures and jackets.
They offer high resistance to saltwater, with options for epoxy primer and marine-grade coatings.
Yes. We stock and supply DNV EH36 and DH36 plates with full certification.
Yes, for basic hull structures. For stronger requirements, AH36 or EH36 is preferred.
Only above certain thicknesses (typically >30 mm) or for high-hardness grades.
We maintain stock and can supply cut sizes from 5 mm to 100 mm on short notice.
Yes. Shot-blasted and primer-coated plates are available on request.
We support small quantities for marine repairs and full bulk orders for shipyards.
Yes. We export marine steel plates to Colombo, Jebel Ali, Doha, Lagos, and more.
Yes. 100% ultrasonic testing is done for all marine grades.
Yes. Mill TCs, classification society approval, and TPI reports are shared digitally and in hard copy.
Contact our team with your vessel specs—we’ll recommend the best plate grade based on structural and environmental factors.
Share your hull drawing, structural steel list or BOQ
Our team will respond within 1 business hour
Sample dispatch & full traceability ensured with order
+91-22-66159018
+91-9820944724
sales@hindustansteel.com hindustansteel1@gmail.com
390/392, Ground Floor, Shankar Mansion, S.V.P. Road, Mumbai – 400004, India
High tensile plates are trusted across industries for their superior load-bearing, fatigue resistance, and weldability — especially in construction machinery, bridges, trailers, shipbuilding, and pressure vessels.
Explore top-performing grades like IS 2062 E350/E450, EN 10025 S355J2, ASTM A572 Gr 50, SAILMA, JFE Hiten, and S690QL — all available with MTCs and cut-to-size options.
Cutting, Profiling, Custom Supply for OEMs
Learn how we cut, bevel, test, and label each wear plate to match project specs. From 4mm to 120mm — cut, ready, and shipped fast.
We Ship Globally – Fast & Certified
Serving buyers in UAE, Saudi Arabia, Vietnam, South Africa, and across India. All plates come with export documents and quality reports.
Looking to know the tensile strength of E350? Confused between IS 2062 vs S355J2? Or wondering if these plates are weldable? Visit our 30+ voice-search optimized FAQ library.
Read our expert guides on “Top 5 Uses of High Tensile Plates in Construction”, “When to use high tensile steel”, and “Top 5 use cases in construction & fabrication” — updated for engineers, OEMs, and fabricators.
Read our expert guides on “E350 vs E450 vs S355”, “When to use high tensile steel”, and “Top 5 use cases in construction & fabrication” — updated for engineers, OEMs, and fabricators.
Here’s why Hindustan Steel Corporation is the preferred partner for OEMs, EPCs, and heavy fabrication companies across India and overseas:
See more →
+91-22-66159018
+91-9820944724
sales@hindustansteel.com hindustansteel1@gmail.com