Steel Plate & Sheet

Marine, Bridge & Building Plate

Himount supplies project steel plate for shipbuilding, marine structures, bridge fabrication and building steel structures, with grade, certificate and inspection requirements confirmed by project.

Product Overview

Marine, Bridge & Building Plate

Marine, bridge and building plate covers project structural steel plate used in ship hulls, offshore components, bridges, steel buildings, welded frames and heavy structural fabrication. Himount separates this page from ordinary structural plate because these projects often require classification society approval, bridge design standards, impact testing, Z-direction properties, traceability and project drawing review. Common RFQ language includes ASTM A131 shipbuilding plate, AH36/DH36/EH36 marine plate, ASTM A709 bridge plate, GB/T 714 bridge steel and EN 10025 S355 structural plate.

ASTM A131Shipbuilding steel plate reference
AH36 / DH36Common marine high-strength grades
ASTM A709Bridge structural plate reference
EN 10025S355 structural project plate
Marine steel plate for shipbuilding projectsBridge structural steel plate projectBuilding structural steel plate application

Key Specifications

Product seriesMarine steel plate, shipbuilding plate, bridge steel plate, building structural plate and project welded structural plate.
Primary standardsASTM A131/A131M, classification society rules such as ABS/DNV/LR/BV/CCS where required, ASTM A709/A709M, GB/T 714, EN 10025-2 and project specifications.
Common gradesA/B/D/E ship plate, AH32/AH36/DH36/EH36, ASTM A709 Gr.36/50/50W, Q345q/Q370q/Q420q, S355JR/S355J2 and project-designated structural grades.
Manufacturing routeHot rolled, controlled rolled, normalized, TMCP or project-approved delivery route according to standard, grade, thickness and inspection requirement.
Testing and certificationClassification certificate, MTC, chemical analysis, tensile test, impact test, ultrasonic testing, Z-direction performance and third-party inspection can be arranged by order.
Size rangeThickness, width and length are confirmed by project drawing, grade, certificate requirement, mill capability and cutting plan. Buyers should provide plate list or nesting drawings where available.
Order details to confirmProject standard, grade, classification society or bridge code, thickness, width, length, delivery condition, impact temperature, UT class, Z-performance, marking, packing, MTC and destination port.

Typical Applications

  • Ship hull structures and marine structural parts
  • Offshore platforms and port equipment structures
  • Bridge girders, decks, ribs and welded bridge assemblies
  • Steel buildings, long-span structures and heavy frames
  • Project cut parts requiring inspection and traceability

Procurement Notes

  • For marine projects, confirm the required classification society before quotation because certificate routing affects mill selection and inspection.
  • For bridge projects, provide bridge code, grade, toughness requirement, UT class, weathering requirement and approved drawing list.
  • For building structures, confirm whether EN 10025 S355, ASTM A709, GB/T 714 or local project standards govern the order.

International Model Search Index

Common standards, grades and RFQ terms

Standards and grade calls
ASTM A131 AH36 plateDH36 shipbuilding steel plateEH36 marine steel plateABS certified marine plateDNV shipbuilding plateASTM A709 Grade 50 plateGB/T 714 Q345q plateEN 10025 S355J2 plate
Inspection and order phrases
classification society certificateimpact tested plateUT tested bridge plateZ25 / Z35 plateTMCP plateproject plate listcut-to-size structural plate
Buyer search phrases
AH36 marine steel plate supplierDH36 ship plate exporterASTM A709 bridge plate supplierQ345q bridge steel plateS355J2 structural plateABS certified steel platebuilding structural steel plate

These terms reflect common international RFQ language. Final supply must follow the ordered standard edition, classification rules, bridge or building project specification, MTC, inspection plan and agreed contract terms.

Buyer FAQ

Questions buyers usually confirm before order

Is AH36 plate the same as ordinary structural plate?

No. AH36 is a shipbuilding high-strength grade commonly ordered with classification society requirements. It should not be treated as ordinary carbon structural plate.

Which certificate is needed for marine plate?

The required class, such as ABS, DNV, LR, BV or CCS, depends on the vessel, owner and project specification. The class requirement should be stated before quotation.

What should bridge plate RFQs include?

Confirm bridge code, grade, thickness, width, length, impact temperature, UT class, weathering requirement, Z-performance, drawings, MTC and inspection authority.

Can one plate grade cover marine, bridge and building use?

Only when the project standard permits it. Marine, bridge and building projects can share similar strength levels, but certification and inspection requirements are different.

Related Products

Products often quoted together

Carbon & Structural Steel PlatePipeline, Wind & Heavy Equipment PlateWeathering & Wear Resistant PlatePressure Vessel & Boiler Steel Plate

Send RFQ for Marine, Bridge & Building Plate

Share standard, grade, class certificate, size, inspection, drawings, packing and destination details.

Request a Quote