Prefabricated Framing Profiles & Core Structural Elements
Engineered for immediate on-site bolted assembly. Our factory-prefabricated beams, columns, plates, and galvanized sections guarantee zero cutting waste and rapid turnkey deployment.
A36 / Q235 Grade Structural H-Beam
Primary load-bearing columns and transverse roof girders for multi-story prefab residences and industrial workshops. Fully drilled and base-plated.
- ASTM A36 / Q355B
- Hot-Rolled & Pre-Drilled
- High Tensile Load
Galvanized Angle Steel Structural Bracing
Lateral seismic cross-bracing and perforated roof trusses that anchor light-gauge wall panels against extreme wind shear forces.
- Equal & Unequal
- HDG Anti-Corrosion
- Pre-Punched Slots
C / U Hot-Rolled Galvanized Channel Steel
Perimeter track channels, floor deck edge purlins, and modular chassis stringers engineered to eliminate floor deflection under dynamic live loads.
- C / U Profile Standard
- Hot-Dip Galvanized
- Precision Chamfered
Hot-Rolled Q235B Carbon Steel Flat Bar
Pre-cut structural gusset plates, stiffener connectors, and foundation soleplates tailored to your connection detailing and shear specs.
- Thickness 3–60 mm
- CNC Laser Trimmed
- Weldability Certified
Complete Structural Steel Profile Kit
Integrated superstructure framing package delivered with CNC bolt markings, custom lifting lugs, and pre-galvanized surface coating.
- GB / ASTM / EN Compliant
- Modular Assembly Ready
- Zero-Weld Field Erection
High-Yield Deformed Rebar 6 mm – 32 mm
Reinforcement rebar meshes and anchor bolt clusters engineered for concrete raft foundations, retaining walls, and anchor pier tie-downs.
- HRB400 / HRB500 / A615
- Grade 60 Equivalent
- Seismic Tested
Heavy-Duty Standard I-Beam Joists
Universal tapered-flange I-beams for wide-span mezzanine decks, mechanical equipment platforms, and heavy overhead hoists in prefabricated housing.
- S275JR / S355JR / A992
- High Section Modulus
- Long-Span Deflection Control
Q355 Hot-Dip Galvanized Heavy Flat Steel
Ultra-thick galvanized earthing ribbons and base flashing plates designed for C4/C5 coastal atmospheric environments with 50+ years rust protection.
- Zinc Layer 600g/m² (85µm)
- Salt Spray Tested 1,500 hrs
- GB/T 13912 & ASTM A123
Macro Shifts in Prefabricated Steel Housing & Modular Civil Engineering
The global architectural and commercial building sectors are undergoing an unprecedented shift toward industrialized prefabricated steel frame structures (PEBs and modular cold-formed/hot-rolled framing). Driven by chronic skilled labor shortages across North America, Europe, and Australasia, along with stringent ESG carbon emission constraints and soaring timber prices, steel-framed prefabricated building systems have transitioned from an alternative construction technique to the preferred engineering baseline for residential developers, humanitarian disaster reconstruction, luxury modular resorts, and military compound developments.
Modular Volumetric Scalability
Modern steel frame housing integrates prefabricated steel pods and chassis with millimetric dimensional tolerances. Structural members are pre-drilled using robotic lines, allowing rapid containerized shipping and 70% faster erection speeds compared to cast-in-place concrete structures.
- Factory-controlled pre-assembly
- Reduced civil foundation loads by 45%
- Zero reliance on wet masonry works
Seismic & Wind Resilience
Engineered using ductile structural steel grades like Q355B, ASTM A572 Gr.50, and S355JR, our prefabricated steel frames can withstand Richter Scale 9.0 seismic events and sustain tropical cyclone wind velocities up to 260 km/h (Category 5 hurricane ratings).
- High strength-to-weight structural ratio
- Energy-dissipating bolted moment connections
- Ductile deformation preventing brittle collapse
Circular Economy & ESG Rating
Structural steel framing is 100% infinitely recyclable without material degradation. Factory prefabrication slashes construction waste by 92% compared to conventional brickwork, granting significant LEED v4 and BREEAM sustainability credits for international EPC contractors.
- Embodied carbon reduction roadmap
- Dry construction saves 85% water usage
- Fully demountable and reusable chassis
Technical Roadmap: From BIM 3D Generative Detailing to Robotic Fabrication
Tianjin Huizhong Xinyu operates a digitalized fabrication lifecycle, bridging structural engineering design and manufacturing execution systems (MES). By adopting advanced Building Information Modeling (BIM) via Tekla Structures and Revit, every steel member, connecting plate, bolt hole, and weld seam is digitally verified in a clash-free virtual environment before production commences.
BIM LOD 400 Digital Detailing
All framing packages are designed to Level of Development (LOD) 400. Full fabrication data, including cut lengths, cope angles, bolt diameter tolerances, and weld bevel geometry, feed directly into CNC machinery via DSTV and CAM automation files.
Submerged Arc & Robotic Welding
Our Tianjin workshops utilize dual-wire submerged arc welding (SAW) and robotic gas metal arc welding (GMAW). Every primary structural connection undergoes visual (VT) and ultrasonic testing (UT) per AWS D1.1 and EN ISO 5817 Level B standards.
Thermal Break & Fire Protection
Future-ready steel housing systems integrate proprietary aerogel thermal-break gaskets and intumescent passive fireproofing coatings. This achieves 120-minute (REI 120) structural integrity without bulky concrete encasement.
Chinese Factory Supply Chain Resilience: The Daqiuzhuang & Tangshan Advantage
Direct cluster synergies, massive raw material stockpiles, and seamless freight access at Tianjin Port eliminate bottleneck risks for international megaprojects.
Daqiuzhuang Industrial Synergy
Headquartered in Daqiuzhuang, Jinghai District, Tianjin—widely acknowledged as the world capital of structural steel and pipe manufacturing. We operate rolling mills, hot-dip galvanizing baths, and pipe lines within an immediate 15 km trucking radius, slashing internal logistics costs.
Tangshan Upstream Metallurgy Access
Our secondary production base in Tangshan sits at the epicenter of premier iron ore refining and blast furnace steelmaking. Direct bilateral supply contracts ensure uninterrupted access to structural coils, billets, and plate slabs at mill-gate raw pricing, shielding buyers from spot market spikes.
Deep-Water Berth Port Proximity
Located just 60 km from Tianjin Xingang Port (the largest port in Northern China), finished steel frame houses, long beams, and containerized modular components are loaded directly into flat racks, 40HQ containers, or break-bulk vessels with zero multimodal freight delay.
30 Years of Verified Heavy Manufacturing
Tianjin Huizhong Xinyu International Trade Co., Ltd. (HZXY) maintains 1,500+ acres of integrated production yards across Tianjin and Tangshan. Rather than acting as a non-manufacturing trading intermediary, we provide clients direct oversight into raw material chemistry, ultrasonic weld verification, automated zinc coating baths, and trial assembly mock-ups.
Our specialized export handling team ensures full compliance with Incoterms 2020 (FOB, CFR, CIF, DDP), Letters of Credit (L/C at sight), and provides bilingual inspection records for international engineering consultancies.
Prefabricated Steel Frame Houses Manufacturer Pricelist (2026 Baseline)
Transparent price benchmarks based on tonnage, building typology, and structural complexity. Updated weekly against Chinese mill gate indices and international freight benchmarks.
| Building Typology / Structural Component | Core Steel Specification | Surface Treatment / Anti-Corrosion | Indicative Price (FOB Tianjin) | Lead Time / Inventory | Optimal Project Application |
|---|---|---|---|---|---|
| Light Gauge Steel (LGS) Framing Kit | G550 High-Tensile / AZ150 Zinc-Alum | Galvalume 150g/m² (Hot-Dipped) | $45 – $75 / sqm (Floor Area) | 15 – 20 Days | Affordable residential villas, low-rise townhouses, emergency housing units |
| Heavy Portal Frame Steel House | Q355B / ASTM A572 Gr.50 / S355JR | Shop Primer + Epoxy Intumescent 80µm | $680 – $920 / Metric Ton | 20 – 25 Days | Wide-span farmhouses, multi-use agricultural estates, luxury steel barns |
| Modular Flat-Pack Steel Chassis | Q235B Welded Hollow Section & Channels | Electrostatic Powder Coated / HDG | $1,350 – $2,100 / Unit (20ft ISO) | Year-Round Stock | Mining camps, construction office complexes, disaster recovery cabins |
| Multi-Story Prefab Steel Framing Kit | Primary H-Beam & Composite Floor Deck | Hot-Dip Galvanized (GB/T 13912 / 85µm) | $850 – $1,150 / Metric Ton | Custom 30 Days | 2–6 story urban apartments, student dormitories, modular boutique hotels |
| Insulated Envelope Panels (Roof/Wall) | PPGI 0.5mm Skin + 75–100mm PIR/Rockwool | PVDF / HDP Paint System (25µm) | $12.50 – $24.00 / sqm | Year-Round Stock | Energy-efficient exterior thermal enclosure, cold-climate insulation |
| Integrated Foundation Rebar & Bolt Cages | HRB500 / Grade 60 Rebar & Grade 8.8 Bolts | Black Steel / Electro-Galvanized | $560 – $680 / Metric Ton | Immediate Dispatch | Ground concrete slab anchor points, foundation pier cages |
*Pricing notes: Unit prices subject to raw material scrap/iron ore variations and final connection detailing. Volume discounts apply on orders exceeding 500 metric tons or 50 modular units. All FOB orders include export seaworthy wooden dunnage, steel bundling bands, and moisture-resistant shrink-wrap.
Engineered Applications Across Specialized Climate & Site Zones
Prefabricated steel framed housing systems engineered to overcome geographical constraints, soil subsidence, and extreme weather profiles.
Coastal & Island Resort Developments
Subject to extreme marine saline fog and humid atmospheric corrosion. Our hot-dip galvanized H-beam substructure with marine-grade fluorocarbon finishes delivers 50+ year operational integrity without structural spalling.
Remote Mining Camps & Field Bases
Deployed across the Australian Outback, Central Africa, and Latin American highlands where on-site skilled labor is non-existent. Bolted portal frames and floor panels assemble in hours with basic hand tools and mini cranes.
High-Density Urban Modular Infill
Constructed within tight metropolitan footprints where crane time is restricted and noise abatement bylaws apply. Precision prefabricated steel modules land and lock overnight, reducing street closure permits by 80%.
Turnkey Prefab MEP Utility Routing
Industrialized steel housing kits ship with integrated pass-throughs for MEP systems. Pre-matched with our certified ERW fire protection pipes, drainage runs, and valve distribution manifolds.
Subterranean Drainage & Conduit Ducts
High-density PVC water reticulation and flame-retardant electrical conduits engineered to clip directly into light-gauge steel floor joists and underground utility mains without friction abrasion.
Corrugated Architectural Cladding
Architectural PVDF-coated steel roofing and standing seam exterior facades. UV-resistant colors with superior solar reflectance index (SRI) ratings that slash HVAC operational cooling loads in arid climates.
Localized Engineering Codes & International Quality Assurance
One of the primary roadblocks international procurement directors encounter when sourcing prefabricated steel structures from China is structural certification and local statutory compliance. HZXY solves this friction by providing complete design calculation sheets, chemical composition Mill Test Certificates (EN 10204 3.1), and third-party inspection verifications (SGS, BV, TÜV) harmonized across major global standards.
North America (AISC, AISI, ASTM)
Materials and weld joints engineered in strict compliance with AISC 360-16 (Structural Steel Buildings) and AISI S100 (Cold-Formed Steel Framing). Structural bolts meet ASTM A325 / A490 specifications, with Charpy V-Notch (CVN) impact toughness verified down to -40°C.
European Union (Eurocode 3 & EN 1090)
Fabrication standards follow EN 1090-2 Execution Class 2 and 3 (EXC2 / EXC3). Steel grades S235JR, S355JR, and S355J2 undergo full traceability protocols from melt shop heat number to final laser-cut assembly member, bearing the CE conformity mark.
Australia & NZ (AS/NZS 4600 & 1170)
Cold-formed steel wall and floor framing conform to AS/NZS 4600 and AS/NZS 3623. Designed for extreme cyclonic wind regions (Region C and D) and seismic action per AS 1170.4, ensuring direct council approval across Australian states and New Zealand territories.
| Standard System | Standard Designation | Primary Grade Equivalent | Min. Yield Strength (MPa) | Tensile Strength (MPa) | Charpy V-Notch Test |
|---|---|---|---|---|---|
| China National (GB) | GB/T 1591-2018 | Q355B / Q355D | 355 MPa (t ≤ 16mm) | 470 – 630 MPa | 20°C / -20°C (≥ 34 J) |
| American (ASTM) | ASTM A572 / A992 | Grade 50 | 345 MPa (50 ksi) | 450 – 620 MPa | Optional -20°F |
| European (EN) | EN 10025-2 | S355JR / S355J2 | 355 MPa | 470 – 630 MPa | 20°C / -20°C (≥ 27 J) |
| Japanese (JIS) | JIS G3106 | SM490A / SM490YA | 325 – 365 MPa | 490 – 610 MPa | 0°C (≥ 27 J) |
Frequently Asked Questions by Overseas Contractors & EPCs
Get authoritative engineering and supply chain answers before initiating an export purchase order with HZXY Steel.
How does HZXY ensure connection tolerances for bolted on-site erection?
What is the expected structural service lifespan in high-humidity or coastal zones?
Can HZXY consolidate secondary materials (MEP, pipes, valves) in the same shipment?
What are the standard payment terms, production lead times, and port handling?
How are design modifications and custom architectural plans accommodated?
Do you accommodate third-party quality inspections prior to dispatch?
Landmark Project References & Structural Materials Track Record
HZXY steel profiles, pipes, and fabricated sub-assemblies have contributed to world-class megaprojects requiring unquestioned metallurgy and load-bearing performance.
Jiaozhou Bay Marine Cross-Sea Bridge
Supplied high-corrosion-resistant heavy structural sections and foundation reinforcement steel designed to resist severe sea splash tidal corrosion over a 100-year design horizon.
Beijing Daxing International Airport Terminal
Delivered customized steel structural nodes, seamless fire protection pipelines, and specialized fluid control valves for the world's largest hyper-curved terminal roof span.
National Stadium (The Bird's Nest)
Participated in specialized long-span hollow section and plate supply, verified through stringent seismic performance analysis and high-toughness Charpy impact testing.
Essential Enclosure, Purlin & Building Infrastructure Catalog
Complete your prefabricated house bill of materials with certified steel coils, cold-formed profiles, MEP piping systems, and fluid valves.
Q235B / Q355B Hot & Cold Rolled Steel Coil
Primary feedstock for light-gauge C/Z steel framing machines, roofing panel roll-formers, and structural pipe extrusion mills.
- Slitting Available
- High Uniformity
- Cold Bending Grade
Prepainted Galvanized Steel Coil (PPGI)
Architectural prepainted color steel coil for exterior prefabricated house cladding and weather-tight sandwich panel manufacturing.
- RAL Standard Shades
- Zinc 40–180g/m²
- PE / PVDF Paint
DX51D – DX54D High-Zinc Galvanized Coil
Zero-spangle, high-adhesion galvanized steel coils engineered for forming floor decking, purlins, and internal non-combustible stud walls.
- EN 10346 Compliant
- Regular / Zero Spangle
- Lock-Forming Quality
Galvanized Structural Hollow Section Pipe
Circular and rectangular hollow section (CHS/RHS) structural steel pipes for prefab verandah posts, roof supports, and scaffolding frames.
- ERW Welded Precision
- Threaded or Plain End
- High Torsional Strength
In-Stock Black Carbon Steel Pipe
Heavy-wall carbon steel tubing for internal hydronic HVAC heating loops, mechanical gas delivery lines, and structural space frames.
- Schedule 40 / 80 Ready
- Beveled Export Ends
- Hydrostatically Tested
Pressure-Resistant HVAC & Plumbing Valves
Cast iron and stainless steel gate, butterfly, check, and ball valves engineered to integrate seamlessly with prefab plumbing systems.
- ANSI / DIN / BS Drilling
- PN10 / PN16 / PN25
- Zero Leakage Seat
PVC & HDPE Water & Drainage Pipes
Complete non-metallic drainage, waste, and vent (DWV) piping and cable conduit arrays pre-bundled into your structural steel container.
- UV Stabilized Plastic
- Smooth Hydraulic Bore
- Solvent / Ring Joint
Galvanized Solid Round Bar & Tie Rods
Precision straight round steel bars for roof sag rods, diagonal wind turnbuckles, and heavy industrial foundation hold-down bolts.
- Diameter 10 – 120 mm
- High Yield Carbon Steel
- Hot-Dip Galvanized
Request Your Complete Prefab Steel Frame House Quotation
Send your architectural drawings, tender specifications, or target Bill of Materials to our engineering pricing desk. Receive an itemized FOB/CIF quotation within 24 business hours.