• 5350 Ultra-Wide Heavy Plate
  • 5350 Ultra-Wide Heavy Plate

5350 Ultra-Wide Heavy Plate

No.5350 Ultra-Wide Heavy Plate

Width of 5350 mm, the world’s widest commercially available hot-rolled heavy plate is manufactured in China. This product leverages 5600mm heavy plate mill technology to deliver high strength-toughness synergy, low residual stress, and exceptional flatness control, meeting stringent requirements for offshore engineering, nuclear power, and energy equipment applications.

Description

Typical Specifications

Parameter

Specification

Maximum Width

5350 mm (world’s widest commercial heavy plate)

Thickness Range

20–150 mm (customizable)

Steel Grades

Q345R, Q690E, 18MnMoNbR, 3.5Ni cryogenic steel, NM400 abrasion-resistant steel, etc.

Surface Finish

As-rolled / trimmed (SPCC/SPC equivalent)

Flatness Tolerance

≤5 mm/m

Mechanical Properties

Compliant with GB/T 9711-2023, ISO 3183:2023, API 5L

Certifications

Third-party test reports available from Cisri-Nak, SGS, CCS, ABS, DNV

Compliance with International Standards

  1. GB/T 9711-2023: Steel line pipe for petroleum and natural gas industries (including HIC resistance)
  2. ISO 3183:2023: Petroleum and natural gas industries — Steel pipe for pipeline transportation systems
  3. API 5L: Line pipe specification (applicable to grades X60–X80)
  4. ASME SA-516: Carbon steel plates for pressure vessels
  5. EN 10025-3: Hot-rolled products of structural steels — Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels
  6. NACE MR0175 / ISO 15156: Materials for use in H₂S-containing environments in oil and gas production

All batches are supplied with Certificate of Analysis (COA), Mill Test Report (MTR), Technical Data Sheet (TDS), Safety Data Sheet (SDS), and Environmental Product Declaration (EPD) to support green supply chain traceability.

Applications

Sector

Components / Projects

Marine & Offshore Engineering

LNG carrier cargo containment support structures, FPSO module decks, ultra-large container ship side shell plating

Nuclear & Energy Equipment

CAP1400/Hualong One containment vessel shells, penstocks for pumped-storage hydropower stations, hydrogen storage tank liners

Defense & Aerospace

Naval deck plating, missile launch platform bases, rocket flame trench structures

Bridges & Infrastructure

Node plates for Changtai Yangtze River Bridge (road-rail dual-use), cross beams for 10,000-ton hydraulic presses

Hydrogen & New Energy

Large-scale hydrogen transport/storage vessels, salt cavern hydrogen storage wellbore liners

Product Grades & Target Applications

Designation

Steel Grade

Primary Applications

5350-Q690E

High-strength steel

Ship decks, bridge nodes, pressure vessels

5350-18MnMoNbR

Pressure vessel steel

Nuclear containment vessels, high-pressure reactors

5350-3.5Ni

Cryogenic steel

LNG storage tanks, Arctic equipment

5350-NM400

Abrasion-resistant steel

Mining conveyor liners, crusher wear plates

Capacity & Lead Time

Item

Details

Annual Capacity

>150,000 metric tons (including 5350mm width)

Minimum Order Quantity

50 metric tons

Standard Delivery Lead Time

8–12 weeks (from order confirmation to shipment)

Expedited Orders

Priority scheduling available (+30% surcharge)

Customization Services

  1. Dimensional Customization: Width adjustable from 5300–5350 mm; length cut-to-order (max 15 m)
  2. Surface Treatment: Grit blasting, galvanizing, coating (epoxy, polyurethane)
  3. Cutting & Machining: Laser cutting, CNC oxy-fuel cutting, beveling
  4. Welding Support: Preheat recommendations and post-weld heat treatment (PWHT) procedures provided

Packaging & Delivery

Transport Mode

Packaging

Notes

Sea Freight

Wooden crate + moisture barrier film + internal bracing

Max single-piece weight ≤12 MT; suitable for container or bulk carrier

Air Freight

Shock-absorbing composite case

For sample shipments only

Land Transport

Flatbed truck with lashing and blocking

Direct delivery for domestic key accounts

All export shipments include: Commercial Invoice, Packing List, Certificate of Origin, COA, MTR, and EPD.

Reference Projects

  1. Sinopec Ulanqab Green Hydrogen Project: 5350mm plates used for circumferential joints of large hydrogen storage tanks
  2. Dalian LNG Terminal Expansion: 5350-3.5Ni plates applied as inner liners for cryogenic cargo tanks
  3. Changtai Yangtze River Bridge: Main tower node plates fabricated from 5350-Q690E, reducing weld seams by 30%

Financing & Compliance Services

  1. ESG Documentation: Carbon footprint report (LCA), green manufacturing certification, RE100 compliance files
  2. Export Licensing Support: Assistance with MOFCOM anti-dumping/countervailing duty filings and export license applications (including dual-use items)
  3. Financial Solutions: Integrated services via U3ARC team—supply chain financing, LC guarantees, cross-border payment settlement

Disclaimer: Specifications are typical values; actual performance depends on service conditions. Made in China. Export subject to PRC regulations. No warranty beyond contractual terms. For compliance matters, contact U3ARC.

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