Industry Whitepaper & Global Procurement Portal

China Prefabricated Steel Frame Suppliers & Company

Tianjin Huizhong Xinyu (HZXY): Industrialized Prefabrication, High-Precision Heavy Structural Engineering & Global Integrated EPC Supply Chains Since 1996.

Precision Engineered Components

High-Integrity Prefabricated Steel Elements & Framing

Direct factory supply of certified primary columns, portal rafters, and structural framing sections stocked and custom-machined for expedited global shipping.

A36 Q235 hot rolled H-beam for steel structure columns and beams

A36 / Q235 Grade Structural H-Beam

Primary framing columns, crane girders, and portal bridge girders with precision cut-to-length and pre-drilling.

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Perforated galvanized carbon steel angle bar

Galvanized Perforated Angle Steel

Pre-punched truss members, web diagonal bracing, and modular secondary framing configurations.

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Hot rolled galvanized channel steel for construction

Galvanized Structural C/U Channel Steel

High-tensile purlin channels and side cladding support rails engineered for wind and snow load resistance.

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Hot rolled Q235B carbon steel flat bar

Hot Rolled Q235B Carbon Flat Bar

Machined stiffener plates, gusset plates, splice connections, and pre-welded embedment profiles.

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Q235B Q345B hot rolled and cold rolled carbon steel coil

Q355B Hot & Cold Rolled Steel Coil

Prime feed material for cold-formed steel framing studs, hollow structural sections, and decking sheets.

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Double coated prepainted PPGI steel coil for corrugated roofing sheet

Double-Coated PPGI / PPGL Coil

Architectural roof panels and insulated wall envelope cladding with high solar reflectance and zinc corrosion barriers.

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Galvanized scaffolding steel pipe for load-bearing structures

Load-Bearing Galvanized Tubular Sections

Circular and rectangular hollow structural members (HSS) for space frames, architectural trusses, and columns.

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6mm 8mm 10mm 12mm deformed steel rebar bundles

High-Yield Deformed Steel Rebar

Integrated foundation anchor cages, bolt embedding grids, and precast concrete slab reinforcement.

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Global Manufacturing Hub

China Factory 4.0: Supply Chain Resilience & Efficiency Advantages

How Daqiuzhuang's industrial cluster density combined with HZXY’s fully integrated processing lines eliminates delivery bottlenecks and slashes procurement overhead.

Mega-Scale Cluster Synergy

Headquartered across 1,500 acres in Tianjin and Tangshan, HZXY operates within China's densest metallurgical manufacturing zone. With immediate raw-coil and billet availability, lead times for custom prefabricated frames are reduced by 40% compared to fragmented fabricators.

Automated Deep Processing

From multi-axis CNC plasma profile cutting and automated submerged-arc welding (SAW) to robotic shot-blasting and thermal immersion galvanizing, components leave our factory with strict assembly-ready dimensional tolerance (±1.5mm).

One-Stop Multi-Category Sourcing

Procurement teams eliminate multiple contractor markups by consolidating heavy structural H-beams, decking coils, conduit piping, PVC drainage networks, and industrial valves directly into bundled single-origin shipments through Tianjin Port.

Engineering Roadmap & Foresight

Technical Roadmap: Next-Gen Prefabricated Steel Frameworks

Addressing structural decarbonization, advanced BIM integration, and modular hyper-performance across modern civil and industrial structures.

1. BIM-to-Fabrication Digital Twins

Direct ingestion of Tekla, Revit, and IFC data into automated profile production lines. Every structural column and beam is serialized via laser-etched QR codes, enabling live tracking, virtual assembly simulation, and zero field-fit clashes.

2. EPD Certified & Green Steel Transition

Adopting scrap-fed Electric Arc Furnace (EAF) steel production and low-carbon metallurgical processes to comply with the EU Carbon Border Adjustment Mechanism (CBAM) and global LEED / BREEAM sustainability mandates.

3. Ultra-Durable Anti-Corrosion Systems

Development of high-aluminum-zinc-magnesium (ZM) alloy coatings and ISO 12944 C5-M extreme marine environment paint systems designed to withstand 50+ years of severe coastal and chemical plant exposure without recurring maintenance.

Macro Industry Solutions

Turnkey Steel Framing Architecture for Global Sectors

Engineered structural systems adapted to geographical wind speeds, seismic hazard profiles, and operating dynamics.

Heavy Logistics & Warehousing

Clear-span portal frames up to 60+ meters without intermediate columns. Optimized to support multi-tier mezzanine loads, automated storage and retrieval systems (ASRS), and high-capacity overhead gantry cranes.

Key Products: Q355B H-Beams, C/Z Purlins, High-tensile bolts

Process Plants & Energy Refineries

Modular pipe-rack structures, multi-story chemical equipment framing, and heavy reactor towers engineered with fireproof passive barriers and high corrosion resistance coatings.

Key Products: Hot-Dip Galvanized Profiles, Steel Pipes, Valves

Public Mega-Infrastructures

Airport terminals, high-speed rail concourses, and long-span sports stadia. Rigorous weld-joint ultrasonic testing (UT) and mechanical property certifications ensuring multi-hazard safety.

Proven References: Daxing Airport, Bird's Nest, Water Cube
Global Material Harmonization

International Structural Steel Equivalent Standards

Cross-reference your local engineering specifications with our production and testing capabilities.

China (GB) USA (ASTM) Europe (EN 10025) Japan (JIS) Min. Yield Strength Tensile Strength Elongation Recommended Applications
Q235B ASTM A36 S235JR SS400 235 MPa 370 - 500 MPa ≥ 26% Secondary beams, purlins, base plates, light trusses
Q355B ASTM A572 Gr. 50 S355JR / J2 SM490A 355 MPa 470 - 630 MPa ≥ 22% Primary load columns, long-span rafters, bridge girders
Q355D/E ASTM A709 Gr. 50W S355NL / ML SM490C 355 MPa 470 - 630 MPa ≥ 22% Cold-climate & sub-zero marine environments (-20°C/-40°C impact)
DX51D+Z ASTM A653 CS EN 10346 SGCC Forming Base 270 - 500 MPa ≥ 22% Corrugated wall/roof sheeting, decking panels, clips
SAE1008 AISI 1008 DC01 SWRM8 Low Carbon ≥ 300 MPa ≥ 30% Structural tie wires, tension bracings, embedded anchors

*Data verified in accordance with GB/T 1591-2018 and ASTM standard cross-references. Specific Charpy V-notch impact values and Z-direction (through-thickness) quality can be specified upon tender submission.

Global Risk Mitigation

Localized Support, Engineering Compliance & QA Protocols

Comprehensive regulatory safeguards ensuring every export container smoothly navigates destination customs, engineering audits, and on-site assembly.

Full MTC Traceability

EN 10204 3.1 & 3.2 Mill Test Certificates accompany each heat number, verifying spectral chemical composition and destructive tensile/yield testing.

Third-Party Quality Audits

Independent pre-shipment verification by SGS, Bureau Veritas, TÜV, or client-nominated engineers for dimensional accuracy, weld UT/MPI, and coating thickness.

Local Port Clearance Support

Tailored documentation packages including SASO, SONCAP, Form E, Certificate of Origin, and certified consular invoicing to minimize tariff friction.

Seaworthy Protective Packaging

Heavy-gauge steel strapping, moisture-resistant VCI paper wraps, end-cap guards, and optimized container nesting to eliminate maritime transit deformation.

Proven Track Record

Engineering Validation Across Landmark Projects

HZXY steel structural elements and piping systems have formed the structural backbone of complex national infrastructures.

Beijing Daxing International Airport project reference

Beijing Daxing International Airport

Supplied high-strength structural profiles, plate components, and utility pipe connections engineered to tight architectural tolerances for this multi-acre terminal hub.

National Stadium Bird's Nest project reference

National Stadium (Bird's Nest)

Provided certified heavy long sections and fabricated structural nodes sustaining the complex twisted-beam spatial lattice structure.

Jiaozhou Bay Bridge project reference

Qingdao Jiaozhou Bay Marine Bridge

Delivered high-performance heavy-flange structural steel and reinforcement sections with anti-saline coating specs for deep marine conditions.

In-House Manufacturing Depth

Precision Structural Processing Capabilities

Transforming raw hot-rolled steel into ready-to-erect prefabricated structural frameworks.

Precision cutting of steel profiles and pipes to fixed length

CNC Sizing, Miter & Bevel Cutting

High-speed band sawing, laser cut-outs, and oxy-fuel beveling ensure pristine weld-preparation edges and accurate bolt clearance slots.

Professional welding of steel structure components

Robotic & Certified Manual Welding

AWS D1.1 and EN ISO 3834 certified welding procedures (WPS/PQR) for box columns, built-up H-sections, end plates, and splice connections.

Hot-dip galvanizing line for steel corrosion protection

Large-Kettle Hot-Dip Galvanizing

Continuous molten zinc thermal immersion bath per ASTM A123 / ISO 1461, delivering metallurgical protective bond thicknesses up to 85–120 μm.

Complete Project Bill of Materials

Integrated Framing, Industrial Piping & Enclosure Products

Complement your primary structural steel framework with matching mechanical, fluid handling, and envelope systems shipped in consolidated containers.

DX51D DX52D DX53D DX54D galvanized steel coil

DX51D-DX54D Galvanized Steel Coil

Continuous hot-dip galvanized steel coil with custom spangle options for structural decking and cold-formed framing.

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Corrosion resistant galvanized plain round steel bar

Galvanized Plain Round Bar

High-tensile plain steel bar for diagonal cross-bracing ties, foundation sag rods, and perimeter hardware.

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SAE1080 Q235 hot rolled wire rod 8mm 12mm

SAE1080 / Q235 Hot Rolled Wire Rod

Coil rod for high-strength fastener manufacturing, mesh fabrication, and pre-stressing strands.

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SAE1006 SAE1008 cold drawn wire for nail making

SAE1006 / SAE1008 Cold Drawn Wire

Uniform bright surface wire for industrial nail production, welded wire fabric, and tying coils.

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Q235 Q355 hot-dip galvanized hot rolled flat steel

HDG Heavy Carbon Flat Steel

3mm–60mm thickness flat steel for building lightning grounding bars, base shims, and machinery baseplates.

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Industrial high strength anti-corrosion coated steel pipe

Coated Industrial Steel Pipeline

Anti-corrosion coated steel pipes for civil utility distribution, HVAC chilled water, and fire sprinkler systems.

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Pressure resistant valves for HVAC, drainage and gas pipelines

Industrial Pressure-Resistant Valves

Full-bore gate, globe, butterfly, and check valves matched to structural pipeline installations.

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Color painted anti-corrosion sprayed steel pipe

Custom Sprayed Fire Protection Pipe

Precision epoxy painted and grooved piping assemblies engineered for rapid, weld-free warehouse MEP installation.

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Procurement Advisory

Frequently Asked Questions by Global EPC Contractors & Buyers

Essential guidance on tolerances, mill certifications, lead times, and multi-product container consolidation.

Where is HZXY located, and which port handles international shipments?
HZXY operates corporate headquarters and processing mills within the Daqiuzhuang Industrial Zone, Jinghai District, Tianjin, China—one of the largest concentrated steel clusters worldwide. Our secondary heavy rolling and casting production base is situated in Tangshan. Over 90% of our export cargo is consolidated and dispatched directly via Tianjin Xingang Port (Tianjin Port), situated less than 70 km away, providing rapid vessel turnaround and container scheduling. Shipments from Qingdao, Shanghai, or Ningbo can also be coordinated upon request.
Which international steel standards and equivalent grades do you certify?
We routinely supply materials certified to ASTM (A36, A572 Gr.50, A653, A500), EN 10025 / EN 10346 (S235JR, S355JR/J2, DX51D+Z), JIS G3101 (SS400, SM490), and GB/T standards (Q235B, Q355B). Under the updated GB/T 1591-2018 specification, former Q345 grades are now fulfilled under the superior Q355 standard (355 MPa min yield). We supply detailed metallurgical equivalence matrices with each commercial quote to ensure client engineering approval.
Do you provide authentic Mill Test Certificates (MTC) and allow third-party inspection?
Yes. Every production heat is fully documented with original EN 10204 3.1 Mill Test Certificates indicating heat number, chemical composition (C, Si, Mn, P, S), mechanical yield, tensile, and elongation. For seismic or low-temperature projects, impact Charpy V-notch data is provided. Furthermore, we actively welcome third-party international quality inspectors (SGS, Bureau Veritas, Intertek, DNV) to carry out visual, dimensional, ultrasonic, and chemical inspections before container sealing.
Can HZXY fabricate, cut, drill, and hot-dip galvanize steel to detailed project drawings?
Absolutely. Our fabrication facilities provide end-to-end processing: CNC band saw cut-to-length, automated plasma drilling and slotted hole punching, robotic structural welding, weld testing (UT/MT), beveling, and hot-dip galvanizing per ASTM A123 / ISO 1461. We also offer multi-layer industrial paint systems (epoxy zinc-rich primer with polyurethane topcoats) applied in temperature-controlled spray booths.
Is it possible to consolidate multiple steel profiles and MEP materials into a single container?
Yes, this is one of HZXY’s core competitive strengths. Global project buyers frequently combine heavy H-beams, angle irons, light purlins, corrugated roofing coils, galvanized steel piping, PVC utility pipes, and industrial valves into unified container bookings. This consolidated sourcing approach drastically cuts maritime LCL surcharges, simplifies customs clearance under a unified bill of lading, and synchronizes site construction schedules.
What are the standard production lead times and minimum order quantities (MOQ)?
For standard profile sizes and grades maintained in our year-round inventory (exceeding 100,000 tons of stock), orders can be processed, packaged, and delivered to Tianjin Port within 7 to 10 days. Custom rolling, specialized dimensional fabrication, or high-volume project orders typically average 20 to 30 days. Our flexible production lines accept mixed-specification orders starting from 20-foot or 40-foot full container loads (FCL), or break-bulk charter vessels for large-scale multi-thousand-ton tenders.
Start Your Engineering Procurement

Request the Complete HZXY Technical Specification & Pricing Catalog

Access comprehensive dimension schedules, weight tables, steel grade cross-references, and current FOB/CIF container shipping quotations from our Daqiuzhuang, Tianjin engineering center.