Marine Grade Steel Plates & Structural Sections

We supply a comprehensive range of marine-grade steel plates and structural profiles used in shipbuilding, offshore engineering, and port infrastructure projects. These materials are engineered for high strength, corrosion resistance, and compliance with classification society standards for hull, deck, and subsea applications.

Dimensions & Manufacturing Range

ParameterRange
Thickness3 mm – 200 mm
Width1500 mm – 4000 mm
Length5000 mm – 18000 mm
Max Plate WeightUp to 25 tons
Delivery ConditionAs Rolled, Controlled Rolled, Normalized, Annealed, Tempered, QT

✅ Classification Approvals

Plates are approved by major classification societies including:

  • ABS, LR, BV, DNV, GL, KR, RINA, CCS, and NK
  •  Available with 3.1 / 3.2 Certification
  •  ABS facility process approval valid through March 2026

✅ Shipbuilding Steel Grades

Standard GradesA, B, D, E
High StrengthAH32, AH36, DH32, DH36, EH32, EH36
Extra High StrengthAH40, DH40, EH40, FH32, FH36, FH40
Z-Direction OptionsZ15 / Z25 / Z35 (Through-Thickness Test)

✅ Dimensional Tolerance & Edging

  • Plates available in both mill edge and trimmed edge
  • Graded for dimensional deviation control (±0.3 mm typical tolerance)
  • Can be supplied as coils or cut-to-length sheets
  • Grating, bulb flats, angles, channels also available

✅ Mechanical & Chemical Properties

  •    Grades conform to ASTM A131, EN 10025, API 2W/2Y, and equivalent offshore structural specifications
  • Option for flaw detection: UT-tested to ASTM A578
  • Through-thickness tear resistance available per ASTM A770
  • Fine grain practice: Al-killed, Nb/Ti added for toughness
  • Plates for boiler/pressure vessel use also available (e.g., 16MnDR, 15CrMoR)

✅ Additional Steel Grades Offered

We also provide alloy and pressure vessel grades from global standards:

  • | GB / Chinese | 20g, 16MnDR, 12Cr1MoVg, 15MnNiDR, etc. |
  • | JIS (Japan) | SPV235, SPV355, SGV410, SBV2, SB410 |
  • | DIN (Germany) | HI, HII, 13CrMo44, 15Mo3, 10CrMo910 |

✅ Applications

  • Commercial shipbuilding (cargo, tanker, bulk carrier, navy)
  • Offshore units: FPSOs, jack-up rigs, topside decks, subsea structures
  • Ports and harbors: caissons, jetties, fenders, gates
  • Crane foundations, skids, tank supports, and subsea frames

All materials are delivered with traceable documentation, classification society stamps, and optional shop priming or pre-cut service. We also support urgent orders via stockist supply or mill-direct coordination for fast-track projects.