Structural Steel Fabrication
Custom Structural Steel Fabrication & Heavy-Duty Steel Brackets for Industrial OEMs
We provide built-to-print structural steel fabrication and heavy-duty steel support systems for industrial OEMs, mechanical contractors, and structural engineering projects. Operating from a fully integrated manufacturing facility equipped with CNC plasma cutting, robotic welding, heavy plate rolling, and in-house abrasive blasting, we convert engineering drawings into certified, precision-welded structural assemblies. Every component is produced according to international fabrication standards, backed by full material traceability and rigorous non-destructive testing.
Product Types and Components
Base Plates and Gusset Assemblies
Flame-cut steel plates paired with welded gusset stiffeners, drilled and milled to precise bolt-hole centers.
Cantilever Support Brackets
Triangular and diagonal braced support arms designed for overhead cable trays, piping networks, and heavy wall-mounted equipment.
Modular Skid Frames
Base structures featuring integrated lifting lugs, leveling pads, motor mounting plates, and structural cross-bracing.
Custom Pipe Racks and Supports
Multi-tier structural steel supports engineered to withstand thermal expansion and operational vibration.
Technical Specifications
|
Parameter |
Specification |
|
Available Profiles |
Wide Flange Beams, Channels, Equal & Unequal Angles, Rectangular HSS, Square HSS, and Heavy Steel Plates up to 100 mm thickness |
|
Dimensional Tolerances |
Standard structural fabrication tolerances in accordance with ISO 13905 and AWS D1.1; precision-machined interface surfaces held within ±0.1 mm |
|
Welding Standards |
Certified welding procedures meeting AWS D1.1 and ISO 3834-2 quality requirements |
|
Load Capacity |
Custom-engineered for specified dead loads, live loads, seismic forces, and wind loads, based on project calculations |
|
Hole Punching & Machining |
CNC drilling, tapping, counterboring, and plasma-milled slotting performed on integrated CNC machining centers |
Materials and Fabrication Options
Carbon Structural Steel: ASTM A36, ASTM A572 Grade 50, Q355B, Q355D, S275JR, and S355JR.
High-Strength Structural Steel: ASTM A852, S460QL, and wear-resistant plates for high-stress contact points.
Stainless Steel Options: Austenitic grades AISI 304, 304L, 316, and 316L for corrosive environments.
Surface Finishes and Corrosion Protection:
Hot-Dip Galvanizing: Compliance with ASTM A123 and ISO 1461 for exterior and marine environments with coating thickness ranging from 85um to 120um.
Industrial Primer and Coating Systems: Sa 2.5 abrasive blast cleaning followed by multi-layer epoxy primer and polyurethane topcoats tailored to C3, C4, and C5 atmospheric corrosivity categories.
Pickling and Passivation: Chemical descaling for stainless steel weldments.
Application and Working Environment
Industrial Plant Infrastructure
Process piping supports, pipe racks, and structural access platforms in chemical, oil and gas, and energy facilities.
Commercial Building Construction
Seismic brackets, facade support steelwork, and transfer trusses in multi-story steel structures.
Mechanical Equipment Skids
Base frames for diesel generators, industrial air compressors, water treatment pumps, and heavy gearboxes.
Harsh Operating Environments
Outdoor installations exposed to high humidity, coastal salt-spray, heavy industrial pollution, and sub-zero operating temperatures.
Manufacturing and Quality Control
Raw Material Verification: Mill Test Reports verified against physical positive material identification and dimensional checks before cutting.
Cutting and Preparation: High-definition CNC plasma and laser cutting paired with mechanical beveling to ensure uniform root openings for full-penetration welds.
Welding Inspection: 100 percent visual inspection by certified welding inspectors, supplemented by Non-Destructive Testing including Ultrasonic Testing, Magnetic Particle Testing, and Radiographic Testing per project specification.
Post-Weld Treatment: Stress-relieving thermal annealing and weld spatter removal prior to surface treatment.
Final Dimensional Audit: CMM coordinate measuring and laser tracker verification for large structural assemblies and critical interface hole patterns.
Customization and OEM Process
Drawing Review and DFM
Engineering review of 2D and 3D CAD files to optimize manufacturability, minimize distortion, and reduce material waste.
Prototype and Sample Fabrication
First-article inspection samples produced for complex geometries and critical load-bearing assemblies.
Batch Production
Tooling lock, multi-station robotic welding setup, and systematic quality checkpoints across batch runs.
Documentation Package
Complete delivery dossier including Material Test Reports, NDT inspection reports, dimensional inspection sheets, and coating thickness certificates.
Packaging and Delivery
Protective Packaging
Steel pallets, heavy-duty wooden crates, and ISPM 15 heat-treated export skids designed for containerized ocean freight or break-bulk shipping.
Corrosion Prevention
Application of volatile corrosion inhibitor films and desiccant packs for sea transport.
Hardware Segregation
Fasteners, small brackets, and loose accessories bagged, tagged, and boxed separately to prevent transit loss and simplify site sorting.
Logistics Support
Export documentation, fumigation certification, and flexible FOB, CIF, and DDP shipping terms managed directly.
FAQ
We're well-known as one of the leading steel brackets & supports manufacturers and suppliers in China. With a professional production team, we are able to meet the needs of the majority of our customers. Please rest assured to buy customized steel brackets & supports from our factory.