Steel structures are the backbone of modern industrial and infrastructure projects, widely used in marine wharf piling, pipe sheet pile walls, building construction, wind power, FPSO (Floating Production Storage and Offloading), petrochemicals, and water treatment industries. We offer full-cycle services from design, material sourcing, cutting, welding, assembly, NDT, surface preparation, corrosion protection, to modular delivery. Our Other steelstructre products include H-beams, box girders, tubular trusses, platforms, pile systems, pressure vessel supports, offshore wind towers, and foundations, featuring high strength, durability, prefabrication capability, and rapid installation, ensuring safety and reliability in extreme environments.
Key Features
Standards:
International Standards:
ISO 3834 (Welding Quality Requirements)
ISO 14713 (Zinc Coatings on Steel for Corrosion Protection)
AISC 360 (Specification for Structural Steel Buildings)
AWS D1.1 / D1.8 (Structural Welding Code)
EN 1090 (Execution of Steel Structures)
Chinese Standards:
GB 50017 (Code for Design of Steel Structures)
GB 50755 (Code for Construction of Steel Structures)
GB/T 1228~1231 (High-Strength Bolt Assemblies)
JGJ 82 (Technical Specification for High-Strength Bolted Connections)
Industry-Specific Standards:
API RP 2A (Planning, Designing, and Constructing Fixed Offshore Platforms)
DNV-RP-C208 (Analysis of Offshore Structures)
IEC 61400-6 (Wind Turbine Tower Design)
Materials:
Carbon Structural Steels: Q235B, Q355B, S355J2
High-Strength Low-Alloy Steels: Q390B, Q420B, Q460C, ASTM A572 Gr.50, A913 Gr.65
Marine & Low-Temperature Steels: DH36, EH36, DH40, EH40 (impact tested at -40°C) S355NL, S420ML (EN 10225, offshore use)
Weathering Steels: Q355NH, Q460NH (reduced maintenance)
Stainless Steels: 304L, 316L (for corrosive environments in water & chemical plants)
Dimensions & Configurations:
Section Types: H-beam, I-beam, angle, channel, round/square tube, box girder, T-section
Component Sizes: Height: 100mm – 3000mm
Length: ≤18m per piece (longer by splicing), modular up to 100m+
Wall Thickness: 6mm – 100mm
Structural Types:
Wharf pipe piles & sheet pile walls
Building frames (multi-story/high-rise)
Wind turbine towers (tapered sections, 2.5m–5.5m diameter)
FPSO deck modules, support legs, riser platforms
Petrochemical pipe racks, equipment platforms
Water treatment walkways, railings, supports
Applications:
Marine Wharf: Pipe pile driving systems, sheet pile + waling beam walls, fender structures
Building Industry: Industrial plants, commercial complexes, bridges, stadiums
Wind Power: Onshore/offshore wind towers, transition pieces, flanges
FPSO & Offshore: Topside modules, living quarters, flare booms, mooring systems
Petrochemicals: Reactor frames, heater supports, pipe racks
Water Treatment: WWTP platforms, chemical dosing structures, pump supports
Certifications & Approvals:
Classification Society Certifications:
ABS, DNV, LR, BV, NK, CCS
Provide plan approval, factory inspection (witness), and CoC
Owner & Engineering Company Approvals:
ISO 9001, ISO 14001, ISO 45001
PED 2014/68/EU (for pressure equipment supports)
NORSOK M-650 / M-601 (Norsok standards)
Approved by Sinopec, CNOOC, Shell, ExxonMobil, BP, Total, Chevron, Woodside, etc.
Common Customer Questions (Q&A Format)
Q: What is the steel structure manufacturing process?
A: Includes drawing detailing → material procurement → cutting → beveling → fit-up → welding → NDT → correction → sandblasting → coating → marking → packaging & shipping.
Q: Do you support BIM and 3D modeling?
A: Yes, we use Tekla, Revit, PDMS for 3D modeling, digital fabrication, and assembly simulation.
Q: Are welding procedures qualified?
A: Yes, all WPS/PQRs are qualified per AWS D1.1, ISO 15614, or EN 1090-2 and documented.
Q: Do you provide NDT services?
A: Yes, RT, UT, MT, PT inspections with third-party reports available.
Q: What coating options are available?
A: Options include:
Hot-dip galvanizing (HDG, ISO 1461)
Epoxy zinc-rich primer + intermediate + topcoat (ISO 12944)
Thermal spray aluminum/zinc (Metallizing)
Weathering steel (paint-free)
Q: What is the maximum single-piece size?
A: Max: 18m L × 4m W × 3.5m H, ≤30 tons; oversized items can be segmented for site assembly.
Q: Are your structures suitable for offshore wind projects?
A: Yes, we manufacture wind towers and transition pieces per DNV-ST-0126 and IEC 61400-6, using S355NL/S420ML, with class approval.
Q: How is dimensional accuracy ensured?
A: CNC cutting, robotic welding, 3D CMM measurement; critical tolerances within ±2mm.
Q: What is the lead time?
A: Standard projects: 45–75 days; large modular: 90–150 days, depending on design and materials.
Q: Do you offer global shipping and on-site installation support?
A: Yes, we provide logistics, sea packaging, customs clearance, and dispatch technicians for on-site assembly and welding supervision.
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