ASTM A36 Steel Structure Commercial Building Steel Structure
APPLICATION
Steel Structure Building: Steel structures are supported by high strength steel, which brings the great advantages of being earthquake-proof, wind-proof, speedy in construction and flexible in space.
Steel Structure House:Steel framing houses use the same construction methodology as light wood framing which helps reduce energy consumption and environmental impact, and they provide thermal insulation with the shortest investment period.
Steel Structure Warehouse: Steel structure warehouse with being large span, high space utilization, rapid installation, easy to design.
Steel Structure Factory Building: Steel frame industrial buildings are strong, and are designed with wide open spaces, hence are appropriate for manufacture and warehouse use. installing the decors, unistrut brackets or other system over the steel ceiling, you need to consider the ability of ceiling to avoid deformation.
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 | Seismic node designed for high seismicity (bolted connections to avoid brittle welds), section optimized to minimize self weight for local transportation. |
| 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 high humidity corrosion protection. |
| Crane Beam | W24×76 ~ W30×99 (ASTM A572 Gr.60) | Load-bearing for industrial crane operation | Designed for high load (compatible with 5~20t cranes), the shape of the end beam is formed by 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 to 20mm thickness, Hot-dip galvanized) suitable for concrete foundation that is commonly used in Central America;
2.Connectors: High-strength bolts (grade 8.8, hot dip galvanized), this eliminates the necessity of welding on site and shortens the construction time;
3.Water-based fire retardant paint (fire resistance ≥1.5h) and Acrylic anti-corrosive paint (UV protection, life span ≥10years) that can satisfy local environmental protection requirements.
STEEL STRUCTURE PROCESSING
| 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
| 1. Salt spray test (core corrosion test) Complies with ASTM B117 (neutral salt spray)/ISO 11997-1 (cyclic salt spray), appropriate for exposure to the salty air of the coast of Central America. |
2. Adhesion test Cross-hatch test in accordance with ASTM D3359 (cross-hatch/grid-grid, to evaluate the level of peeling); pull-off test in accordance with ASTM D4541 (to assess the peel strength between the coating and the steel substrate). |
3. Humidity and heat resistance test ASTM D2247 (40°C/95% RH) to protect against blistering and cracking of the coating during the raining day). |
| 4. UV aging test ASTM G154 (to simulate the intense UV exposure in rainforests to retard fading and chalking of the coating). |
5. Film thickness test Dry film thickness by ASTM D7091 (magnetic thickness gauge); wet film thickness by ASTM D1212 (to confirm corrosion resistance is adequate to the moist film thickness). |
6. Impact strength test ASTM D2794 (drop hammer impact, to avoid damage during shipping/handling). |
SURFACE TREATMENT
Surface Treatment Display: Epoxy zinc-rich coating, galvanized (hot dip galvanized layer thickness ≥85μm service life can reach 15-20 years), black oiled, etc.
Black Oiled
Galvanized
Epoxy zinc-rich coating
PACKAGING AND SHIPPING
Packaging:
Steel Construction is carefully packaged to protect the finish and insure the integrity of the structure during handling and shipping. The components are typically wrapped with a water resistant material like plastic film or rust-proof paper, and the smaller accessories are contained in wooden boxes. However, all the bundles or sections are uniquely tagged so that there is no confusion when you safely unload them and competently install them on site.
Transportation:
The steel framework may be shipped by container or bulk vessel depending on size and destination. Large, heavy strap packages are strapped with steel strap and wood on either edge to prevent movement and damage while in transit. All logistics services are rendered under the standards of international transportation ensuring timely delivery, safe arrival, even distance shipping or trans-border shipping.
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 meet?
A: Our steel structure comply with the American Standards such as ASTM A36,ASTM A572 etc. For example, ASTM A36 is a general purpose carbon structural, A588 is a high – weather – resistanc structural for use in severe – atmospheric environment.
Q: How can you guarantee the quality of your steel materials?
A: We get steel raw material from the trusted domestic or oversea steel mills which has strict quality control system. All the products are upon arrival subjected to severe testing, among them are the chemical composition analysis, mechanical properties testing as well as non-destructive testing including Ultrasonic Testing (UT) and Magnetic Particle Testing (MPT) to make sure the quality is in line with related standards.
Address
Bl20, Shanghecheng, Shuangjie Street, Beichen District, Tianjin, China
Phone
+86 13652091506
