ASTM A36 Steel Structure Manufacturing Plant Structure
APPLICATION
Steel Structure Buildings: Steel structures utilize high-strength steel support, offering advantages such as earthquake and wind resistance, fast construction, and flexible space.
Steel Structure Houses: Steel structures utilize lightweight steel framing, offering energy conservation, environmental protection, thermal insulation, and a short construction period.
Steel Structure Warehouses: Steel structure warehouses feature large spans, high space utilization, fast installation, and convenient racking layout.
Steel Structure Factory Buildings: Steel structure factory buildings offer strong load-bearing capacity and can be designed with large, column-free spaces, making them suitable for production and industrial use.
PRODUCT DETAIL
Core steel structure products for factory construction
1. Main load-bearing structure (adaptable to tropical seismic requirements)
| Product Type | Specification Range | Core Function | Central America Adaptation Points |
| Portal Frame Beam | W12×30 ~ W16×45 (ASTM A572 Gr.50) | Main beam for roof/wall load-bearing | High-seismic node design (bolted connections to avoid brittle welds), optimized section to reduce self-weight for local transport |
| Steel Column | H300×300 ~ H500×500 (ASTM A36) | Supports frame and floor loads | Base embedded seismic connectors, hot-dip galvanized surface (zinc coating ≥85μm) to resist high-humidity corrosion |
| Crane Beam | W24×76 ~ W30×99 (ASTM A572 Gr.60) | Load-bearing for industrial crane operation | High-load design (suitable for 5~20t cranes), end beam equipped with shear-resistant connection plates |
2. Enclosure system products (weatherproof + anti-corrosion)
Roof purlins: C12×20~C16×31 (hot-dip galvanized), spaced 1.5~2m apart, suitable for color-coated steel plate installation, and resistant to typhoon loads up to level 12.
Wall purlins: Z10×20~Z14×26 (anti-corrosion painted), with ventilation holes to reduce humidity in tropical factories.
Support system: Bracing (Φ12~Φ16 hot-dip galvanized round steel) and corner braces (L50×5 steel angles) enhance the structure's lateral resistance to withstand hurricane-force winds.
3. Supporting auxiliary products (localized construction adaptation)
1.Embedded parts: Steel plate embedded parts (10mm-20mm thick, hot-dip galvanized), suitable for concrete foundations commonly found in Central America;
2.Connectors: High-strength bolts (grade 8.8, hot-dip galvanized), eliminating on-site welding and shortening the construction period;
3.Fire and corrosion retardant materials: Water-based fire retardant paint (fire resistance ≥1.5h) and acrylic anti-corrosion paint (UV resistant, service life ≥10 years), complying with local environmental protection requirements.
PAYMENT & SHIPPING TERM
| Processing Method | Processing Machines | Processing |
| Cutting | CNC plasma/flame cutting machines, shearing machines | CNC plasma/flame cutting (for steel plates/sections), shearing (for thin steel plates), with controlled dimensional accuracy |
| Forming | Cold bending machine, press brake, rolling machine | Cold bending (for C/Z purlins), bending (for gutters/edge trimming), rolling (for round support bars) |
| Welding | Submerged arc welding machine, manual arc welder, CO₂ gas-shielded welder | Submerged arc welding (for H-shaped columns/beams), manual arc welding (for gusset plates), CO₂ gas shielded welding (for thin-walled components) |
| Holemaking | CNC drilling machine, punching machine | CNC drilling (for bolt holes in connecting plates/components), punching (for batch small holes), with controlled hole diameter and position tolerances |
| Treatment | Shot blasting/sand blasting machine, grinder, hot-dip galvanizing line | Rust removal (shot blasting/sand blasting), weld grinding (for deburring), hot-dip galvanizing (for bolts/supports) |
| Assembly | Assembly platform, measuring fixtures | Pre-assemble components (columns + beams + supports), disassemble after dimensional verification for shipment |
STEEL STRUCTURE TESTING
| Test Item | Standard | Method / Conditions | Purpose & Applicable Environment |
| Salt Spray Test (Core Anti-Corrosion Test) | ASTM B117 / ISO 11997-1 | Neutral or cyclic salt spray test | Simulates coastal high-salinity environments to evaluate corrosion resistance |
| Adhesion Test (Cross-Cut Method) | ASTM D3359 | Cross or X-cut, evaluate coating detachment grade | Checks coating adhesion to the steel substrate |
| Adhesion Test (Pull-Off Method) | ASTM D4541 | Measures coating detachment force from the substrate | Quantitatively evaluates bonding strength of the coating |
| Humidity Resistance Test | ASTM D2247 | 40/ 95% RH continuous exposure | Simulates rainy season conditions, checks blistering and cracking resistance |
| UV Aging Resistance Test | ASTM G154 | UV lamp cyclic exposure | Simulates tropical high-UV environments to assess color fading and chalking |
| Dry Film Thickness Test | ASTM D7091 | Magnetic or eddy current thickness gauge | Ensures the dry coating thickness meets anti-corrosion design requirements |
| Wet Film Thickness Test | ASTM D1212 | Wet film thickness gauge | Controls coating thickness during application |
| Impact Resistance Test | ASTM D2794 | Falling weight impact method | Tests coating resistance to damage during transport and installation |
SURFACE TREATMENT
Surface Treatment Display: black carbon steel, galvanized (hot dip galvanized layer thickness ≥85μm service life can reach 15-20 years), black oiled, etc.
PACKAGING AND SHIPPING
Packaging:
Steel structures are carefully packaged to ensure surface protection and structural integrity during handling and transportation. Components are typically wrapped in waterproof material, plastic film, or rust-proof paper, while smaller accessories are packed in wooden crates. Each bundle or section is clearly labeled for easy identification, ensuring safe and efficient on-site unloading and installation.
Transportation:
Steel structures are transported by container or bulk carrier, depending on size and destination. Heavy or oversized components are securely fastened with steel straps and wooden supports to prevent movement or deformation during transportation. All logistics adhere to international transportation standards, ensuring timely delivery and safe arrival, even for long-distance or overseas shipments.
OUR ADVANTAGES
1. Overseas Branch & Spanish Language Support
We have overseas branches with Spanish-speaking teams to provide full communication support for Latin American and European clients.
Our team assists with customs clearance, documentation, and logistics coordination, ensuring smooth delivery and faster import procedures.
2. Ready Stock for Fast Delivery
We maintain sufficient inventory of standard steel structure materials, including H beams, I beams, and structural components.
This enables shorter lead times, ensuring customers receive products quickly and reliably for urgent projects.
3.Professional Packaging
All products are packed with standard seaworthy packaging — steel frame bundling, waterproof wrapping, and edge protection.
This ensures safe loading, long-distance transport stability, and damage-free arrival at the destination port.
4.Efficient Shipping & Delivery
We work closely with reliable shipping partners and provide flexible delivery terms such as FOB, CIF, and DDP.
Whether by sea, rail, we guarantee on-time shipment and efficient logistics tracking services.
FAQ
Regarding Material Quality
Q: What standards do your steel structures comply with?
A: Our steel structures comply with American standards such as ASTM A36, ASTM A572, and ASTM A588. For example, ASTM A36 is a commonly used carbon structural steel with good overall performance, while ASTM A588 is a high - weather - resistant structural steel suitable for harsh environments.
Q: How do you ensure the quality of steel materials?
A: We source steel materials from well - known domestic and international steel mills with strict quality control systems. All materials undergo strict inspection upon arrival, including chemical composition analysis, mechanical property testing, and non - destructive testing such as ultrasonic testing and magnetic particle testing, to ensure that the quality meets the relevant standards.
Regarding Corrosion Resistance
Q: Given the humid and high - temperature environment in some parts of the Americas, how does your steel structure prevent corrosion?
A: We usually use hot - dip galvanizing treatment for steel structures. The zinc layer thickness can reach more than 85μm, which can effectively isolate the contact between steel and the air and moisture, thereby enhancing corrosion resistance. In addition, for some parts with higher corrosion requirements, we can also apply anti - corrosion paints, such as acrylic anti - corrosion paints, which have good UV resistance and can maintain good anti - corrosion performance for more than 10 years.
Q: Does the corrosion - resistant treatment affect the strength and other properties of the steel structure?
A: The hot - dip galvanizing treatment and the application of anti - corrosion paints will not have a negative impact on the strength and other properties of the steel structure.
On the contrary, proper corrosion - resistant treatment can protect the steel structure from corrosion, thereby maintaining its original strength and performance for a long time and extending its service life.
Regarding Structural Design and Safety
Q: Can your steel structure meet the seismic requirements in the Americas?
A: Yes, our steel structure design takes into account the seismic characteristics of different regions in the Americas.
We adopt high - seismic - resistant node designs, such as bolt - connected joints, which can effectively absorb seismic energy and avoid brittle fracture of welds during earthquakes.At the same time, we will conduct seismic calculations according to local seismic intensity requirements to ensure that the steel structure has sufficient seismic performance.
Q: How do you ensure the overall stability of the steel structure?
A: Our steel structure design is based on strict mechanical calculations and engineering experience. We reasonably arrange the main load - bearing structures, such as portal frames, columns, and crane beams, and set up a complete support system, including tie bars and corner braces, to enhance the lateral stability of the structure and ensure that the steel structure can safely bear various loads under normal use and extreme conditions.
Address
Bl20, Shanghecheng, Shuangjie Street, Beichen District, Tianjin, China
Phone
+86 13652091506
