Shandong Sunway Steel Building Co., Ltd.
| Payment Terms | T/T,L/C |
| Supply Ability | 100000T/Year |
| Delivery Time | 30-60 days |
| Packaging Details | Iron frame |
| Qualitycontrol | Strict inspection and testing during fabrication |
| Design Parameter | Wind Load,Snow Load And Earthquake |
| Standard | GB,AISC,JIS,JWB |
| Coat | HDG |
| Color | Optional |
| Customization Options | Available |
| Machining | Drilling, milling for precise fittings |
| Corrosion Resistance | Rust-proof |
| Versatility | Flexible |
| Environmental Impact | Minimal |
| Connection Type | Bolt Connection |
| Size | Customizable |
| Application | Construction, Industrial Buildings, Warehouses, Bridges |
| Loadcapacity | Varies by design, typically up to several tons |
| Certification | AISC, ASTM, EN, BS, DIN, GB, JIS，ISO |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T,L/C | Supply Ability | 100000T/Year |
| Delivery Time | 30-60 days | Packaging Details | Iron frame |
| Qualitycontrol | Strict inspection and testing during fabrication | Design Parameter | Wind Load,Snow Load And Earthquake |
| Standard | GB,AISC,JIS,JWB | Coat | HDG |
| Color | Optional | Customization Options | Available |
| Machining | Drilling, milling for precise fittings | Corrosion Resistance | Rust-proof |
| Versatility | Flexible | Environmental Impact | Minimal |
| Connection Type | Bolt Connection | Size | Customizable |
| Application | Construction, Industrial Buildings, Warehouses, Bridges | Loadcapacity | Varies by design, typically up to several tons |
| Certification | AISC, ASTM, EN, BS, DIN, GB, JIS，ISO | Place of Origin | China |
| High Light | ASTM certified square steel tubes ，EN certified prefab building tubes ，high-strength warehouse steel tubes | ||
High-Strength Square Tubes for Prefab Buildings & Warehouses: ASTM/EN Certified
Core Benefits
Superior Load Capacity
Demonstrates twice the torsional rigidity of I-beams and supports at least 30% greater loads than H-profiles of equivalent dimensions.
Enhanced Durability
Continuous seam welding prevents interior corrosion, while a multi-layer protective coating ensures a service life exceeding five decades.
Simplified Installation
Prefabricated modular components allow rapid bolted assembly and are designed for efficient installation in confined spaces common in complex infrastructure.
Primary Applications
Main bridge girders and load-bearing trusses
Structural framing for skyscrapers and multi-story towers
Industrial roofing systems and long-span warehouses
Heavy-duty equipment platforms in energy and utility facilities
Technical Specifications
Base Material: High-strength low-alloy steel (ASTM A572 Grade 50 / EN 10025 S355)
Surface Treatment: Hot-dip galvanizing or industrial-grade painting compliant with ISO 12944
Quality Assurance: Factory Production Control certified to EN 1090-2 Class 4 requirements
Customization: Prefabricated penetrations and service openings available for utility routing
| Product name | Square Tubes |
| Material | AISC & CE & GB Standard |
| Surface | Painted; HDG |
| Service | OEM |
OEM service available.
A dedicated team of fast response;
EN1090 & AISC & CWB & JIS Certificated Quality;
Full production line for customized products;
Close to Sea port, Convenient for visit and delivery;
150000M2 Manufacturing Area capable to take large volume
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2002
Total Annual:
50 million-70 million
Employee Number:
450~500
Ecer Certification：
Verified Supplier
Sunway is a Chinese steel fabricator established in the year 2002, providing OEM steel structure for Construction Building, Solar Tracker, Chemical Plant, Power Plant, Mining & Cement equipment. Sunway has passed international certificates including AISC, CE, CWB, JIS, ISO. Supply ful... Sunway is a Chinese steel fabricator established in the year 2002, providing OEM steel structure for Construction Building, Solar Tracker, Chemical Plant, Power Plant, Mining & Cement equipment. Sunway has passed international certificates including AISC, CE, CWB, JIS, ISO. Supply ful...
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