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Contact Person : Xie Xinkai
Phone Number : 13665378218

Fast-Install Prefabricated Factory Building, Q355 Steel Structure Manufacturing

  • Fast-Install Prefabricated Factory Building, Q355 Steel Structure Manufacturing
  • Fast-Install Prefabricated Factory Building, Q355 Steel Structure Manufacturing
Place of Origin China
Brand Name Shandong Xinghua Steel Structure
Certification EN1090 CE, ISO3834, ISO15614, AWS D1.1, ISO 9001/14001/45001
Minimum Order Quantity 10 tons
Price USD/tonne (FOB Qingdao or any Chinese port of loading); final price subject to project drawings.
Packaging Details Bundled, crated, rack-packed or nude (per member type); shipped by container load or breakbulk vessel.
Delivery Time 20–25 days after drawing confirmation & deposit; subject to project scope and quantity.
Payment Terms T/T;30% or 50% deposit, balance before shipment to designated port.
Supply Ability min. 5,000 tons/month (80,000 tons/year)
Product Details
Business Type Manufacturer (Original Factory) Customization OEM/ODM; Drawings By Client Or Our In-house Team
Inspection SGS/BV/TÜV/Intertek, Third-party Accepted. Warranty 12 Months From B/L Date; Covering Fabrication And Material Defects.
After-sales Service On-site Erection Guidance & Technical Support. Steel Grade Q235B/Q355B (GB/T 1591); S355JR (EN 10025); ASTM A36 / A572 Gr50
Workshop Crane Capacity Up To 100 Tons Max. Single-piece Fabrication Weight Up To 100 Tons
Max. Single-piece Fabrication Height Up To 6 Meters （Assembly Height Per Client's Requirement & Design Drawings) Max. Truss Segment Length Up To 40 Meters （Assembly Length Per Client's Requirement & Design Drawings)
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Fast Install Prefabricated Building Factory

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Prefabricated Building Factory Q355

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Q355 Steel Structure Manufacturing
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Product Description

Fast-Install Prefabricated Factory Building, Q355 Steel Structure Manufacturing

 

Main Features

A Q355B high-strength steel portal-frame system for large-span factories, heavy-duty workshops and logistics warehouses, with fast bolting-only assembly.

  • Q355B (S355JR equivalent) high-strength steel, yield 345 MPa
  • Max clear span up to 60 m, column-free interior
  • Portal / multi-span rigid frame, column spacing 6–12 m
  • Overhead crane capacity up to 50 t (A5/A7 working duty)
  • Fully bolted, field-weld-free connections
  • Sa2.5 blasting + epoxy-zinc dual-layer coating
  • Seismic design per EN 1998; wind load up to 35 m/s
  • Roof pitch 5–10%; ventilated ridge option
  • Full envelope system: roof/wall panels, insulation, gutters
  • Designed to GB 50017 / EN 1993 / EN 1090-2

 

Technical Specifications

Parameter

Technical Specification

Applicable Regions

Steel Material

Q355 High-strength Structural Steel

Middle East, East Asia, Southeast Asia

Maximum Span

62 meters without columns

Large-space Factories

Seismic Resistance

8-degree Seismic Fortification

Earthquake-prone Areas

Corrosion Protection

Hot-dip Galvanizing + Anti-corrosion Coating

High Humidity Coastal Areas

Installation Speed

55% faster than traditional methods

Rapid Construction Needs

 

Key Advantages

  • High-strength steel: Q355B sections deliver higher load capacity with lower tonnage than Q235.

  • Large-span design: up to 60 m column-free interior for flexible production line layout.

  • Heavy crane support: overhead cranes up to 50 t for heavy-duty manufacturing.

  • Fast delivery: 30–45 day fabrication and bolting-only site erection.

  • Corrosion protection: Sa2.5 + epoxy-zinc system for C4/C5 coastal and Middle East environments.

  • Certified fabrication: EN 1090-2 + ISO 9001, SGS/BV third-party inspection available.

  • Factory capacity: 100 t workshop crane, 50,000 t/year, 80–90% export share.

  • Proven exports: completed projects across Middle East, Southeast Asia and Africa.

 

Applications

  • Mechanical processing & assembly workshops

  • Heavy equipment & engineering machinery plants

  • Automotive & vehicle parts factories

  • Mould & hardware manufacturing

  • Steel fabrication & metalworking workshops

  • Shipbuilding & marine equipment yards

  • Logistics & distribution warehouses

  • Cold storage and bulk material warehouses

  • Textile, garment & light-industry plants

  • Food & beverage processing facilities

  • Chemical & pharmaceutical workshops

  • Aircraft hangars and maintenance halls

  • Industrial park multi-purpose facilities

 

Fast-Install Prefabricated Factory Building, Q355 Steel Structure ManufacturingFast-Install Prefabricated Factory Building, Q355 Steel Structure Manufacturing

 
Tags:

industrial steel buildings

large sheds workshops

steel plant structure