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Fast-Install Prefabricated Factory Building, Q355 Steel Structure Manufacturing
Fast-Install Prefabricated Factory Building, Q355 Steel Structure Manufacturing
Specifications
Workshop Crane Capacity :
up to 100 tons
Steel Grade :
Q235B/Q355B (GB/T 1591); S355JR (EN 10025); ASTM A36 / A572 Gr50
Max. Single-piece Fabrication Weight :
up to 100 tons
Customization :
OEM/ODM; drawings by client or our in-house team
After-sales Service :
On-site erection guidance & technical support.
Max. Single-piece Fabrication Height :
up to 6 meters （Assembly height per Client's requirement & design drawings)
Brand Name :
Shandong Xinghua Steel Structure
Certification :
EN1090 CE, ISO3834, ISO15614, AWS D1.1, ISO 9001/14001/45001
Place of Origin :
China
MOQ :
10 tons
Price :
USD/tonne (FOB Qingdao or any Chinese port of loading); final price subject to project drawings.
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)
Delivery Time :
20–25 days after drawing confirmation & deposit; subject to project scope and quantity.
Packaging Details :
Bundled, crated, rack-packed or nude (per member type); shipped by container load or breakbulk vessel.
Max. Truss Segment Length :
up to 40 meters （Assembly length per Client's requirement & design drawings)
Inspection :
SGS/BV/TÜV/Intertek, third-party accepted.
Business Type :
Manufacturer (Original Factory)
Warranty :
12 months from B/L date; covering fabrication and material defects.
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

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Product Detail
Workshop Crane Capacity :
up to 100 tons
Steel Grade :
Q235B/Q355B (GB/T 1591); S355JR (EN 10025); ASTM A36 / A572 Gr50
Max. Single-piece Fabrication Weight :
up to 100 tons
Customization :
OEM/ODM; drawings by client or our in-house team
After-sales Service :
On-site erection guidance & technical support.
Max. Single-piece Fabrication Height :
up to 6 meters （Assembly height per Client's requirement & design drawings)
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Fast-Install Prefabricated Factory Building, Q355 Steel Structure Manufacturing

Shandong Xinghua Steel Structure Co., Ltd.

Verified Supplier
2 Years
shandong, jining
Since 2010
Business Type :
Manufacturer, Exporter, Trading Company
Main Products :
Prefabricated Steel Structures, Workshop Steel Structure, Warehouse Steel Structures
Total Annual :
450 million-600 million
Employee Number :
220~380
Certification Level :
Verified Supplier
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