Welded Structural Steel H Beams Q235B Q355B ASTM A36

Welded Structural Steel H Beams / Large Size Metal Lightweight Steel Beams are beam structures that support the operation of overhead cranes. These beams feature crane tracks, allowing cranes to travel back and forth along the beam.

The flange plate of welded crane beams should consist of a single steel plate layer. When two layers are used, the outer steel plate must be set along the beam length with design and construction measures ensuring close contact between the upper flange layers.

We operate three steel structure production lines equipped with:

• Flame cutting machines
• H-Section steel assembly machines
• Gantry welding machines
• Shot-blasting machines
• Paint spray booths

Our workshop includes dedicated space for fabricating heavy-duty and large structural steel components.

• Structural steel fabrication, painting, galvanizing, and pre-assembly
• Design, fabrication, and installation of prefabricated steel structure buildings
• Development of fabrication/shop drawings from architectural/construction drawings
• Engineering consulting services

• Thickness tolerance <0.25mm
• In-house yield and tension strength testing
• Third-party inspection certificates available
• Traceable mill certificates

• 100% dimensional tolerance testing (<1mm)
• 20% ultrasonic welding line testing (full penetration, no faults)
• 20% magnetic powder testing (no bubbles, defects; smooth finish)
• Third-party inspection assistance available

• Shot blasting grade Sa 2.5
• Metal luster with no rust, oil dirt, or welding spatter
• Roughness >75μm
• Primer applied within 5 hours of shot blasting
• Holiday-free coatings with smooth finish
• Dry Film Thickness (DFT) >75μm

• Professional design team for customized drawings and steel quantity calculations
• Skilled fabrication team with advanced equipment and project-specific production schedules
• One-stop service with integrated project proposals
• Dedicated QC team ensuring product and service quality
• Comprehensive after-sales service including maintenance support