Energy Efficient Frames Steel Structure Fabrication Industry Leading Performance Prefabricated Components
High-strength low-alloy custom steel structure fabrication with superior formability, compliant with international standards.
Product Overview
Our steel structure buildings feature a main framework of H, Z, and U section steel components, with roof and wall systems utilizing various panel types along with windows, doors, and crane systems.
We deliver precision-engineered, high-strength components crafted from premium alloys, compliant with global standards, and customized to project specifications. Our structures offer durability, corrosion resistance, and easy assembly for diverse applications from skyscrapers to industrial frames.
Technical Specifications
| Component | Specifications |
Main Steel Frame
Column | Q235, Q235B, Q345B Welded H Section Steel |
| Beam | Q235, Q235B, Q345, Q345B Welded H Section Steel |
Secondary Frame
Purlin | Q235 C and Z purlin |
| Knee brace | Q235 Q345 Angle Steel |
| Tie Rod | Q235 Q345 Circular Steel Pipe |
| Brace | Q235 Q345 Round Bar |
| Vertical and Horizontal Support | Q235 Q345 Angle Steel, Round Bar or Steel Pipe |
Maintenance System
Wall and roof | Corrugated Steel Sheet/EPS Sandwich Panel / Glass Fiber Sandwich Panel / Rock Wool Sandwich Panel / Pu Sandwich Panel /Steel Sheet |
Accessories
Window | 1. Sliding window
2. Plastic-steel frame or aluminum frame
3. Customizable to requirements |
| Door | 1. Roller door
2. Sliding door and sidewall door
3. Steel sheet, sandwich panel or aluminum-alloy
4. Customizable to requirements |
| Gutter | 1. Aluminum-zinc steel sheet
2. Stainless sheet |
| Rainspout | PVC |
| Surface Treatment | Hot dipped galvanized or Painted |
| Wind Resistance Grade | 12 Grades |
| Earthquake-resistance | 8 Grades |
| Structure Usage | Up to 50 years |
Key Advantages
- Cost-effective and transportation-friendly custom steel buildings
- Main beams and columns constructed from premium Q355B, Q345B, Q235B steel
- Resists winds up to 180km/h and 9-grade earthquakes
- Easy assembly and disassembly without structural damage
- Versatile applications for construction sites, offices, dormitories, and more
- Environmentally friendly with reduced material waste and recyclable components
Applications
Our steel structures serve as the backbone for diverse projects including skyscraper frames, bridge girders, industrial plants, stadium roofs, offshore oil rigs, warehouse systems, wind turbine towers, modular buildings, airport hangars, and heavy machinery bases. Suitable for both large-scale projects and custom small builds.
Materils and Accessories:
- Structural Steel: Hot-rolled sections (e.g., H-beams, I-beams, channels) and cold-formed thin-walled steel are widely used. Hot-rolled steel, such as Q345B or ASTM A992, offers high strength for primary load-bearing members like columns and beams . Cold-formed steel, fabricated by bending thin steel sheets (2–6mm thick), is ideal for lightweight structures like roofing purlins and wall studs .
- High-Strength Bolts: These are critical for connections, categorized into friction-type and bearing-type. Friction-type bolts (e.g., ASTM A325) transfer loads via frictional resistance between clamped surfaces, while bearing-type bolts (e.g., ASTM A490) rely on direct shear and bearing . They are typically made of alloy steel with grades 8.8 or 10.9, ensuring reliable load transfer .
- Welding Materials: Consumables like electrodes (e.g., E50XX for Q345 steel) and welding wires (e.g., H08MnA) must comply with AWS or GB standards to ensure weld strength and ductility . Flux-cored wires and submerged arc welding (SAW) are commonly used for high-efficiency fabrication .
- Coatings: Anti-corrosive coatings (e.g., zinc-rich primers) and fire-resistant paints (e.g., intumescent coatings) protect steel from environmental degradation. These must meet ISO 12944 (corrosion protection) and GB 14907 (fire resistance) standards .
Company Profile
Qingdao Tsin Steel Structure Construction Technology Co., Ltd. provides integrated solutions for steel structure workshops, warehouses, and multi-storey buildings, including design, fabrication, and installation guidance. With a 30,000m² factory and monthly production capacity of 2,500 tons, we deliver precise, economical structures using advanced CAD and Tekla software.
Our experienced team manages projects from initial consultation through final construction, ensuring smooth implementation. We've successfully exported to numerous countries worldwide including Australia, Indonesia, Philippines, Ghana, Chile, and Venezuela.
Frequently Asked Questions
1. Who are we?
Based in Shandong, China since 2025, we export to South America (40%), Africa (20%), Oceania (10%), Central America (10%), Eastern Europe (10%), and Southeast Asia (10%). Our team consists of 5-10 professionals.
2. How do we guarantee quality?
- Pre-production samples for approval
- Final inspection before shipment
3. What products do we offer?
Steel Structure Warehouses, Workshops, Buildings, Poultry Houses, and Prefab Houses
4. Why choose us?
We provide complete steel structure solutions with over 20 years of construction experience.
5. What services do we provide?
Delivery Terms: FOB, CFR, CIF, EXW
Payment: USD, EUR, AUD, CNY via T/T, L/C, Cash
Languages: English, Chinese
