Large Steel Column Welding Parts

This service focuses on the custom fabrication of main bearing steel columns and steel beams for various steel structure buildings, handling ultra-large & extra-long dimension parts that meet the construction needs of large-span workshops, high-rise commercial buildings and industrial plants. We adopt Q235B, Q355B, Q355C high-strength low-alloy structural steel specially used for construction steel structures, selecting thick steel plates and profile steel to ensure the overall bearing performance of components.

Adopting full-penetration MIG/SAW automatic welding process, all welders hold professional construction steel structure welding certificates, strictly constructing in accordance with AWS D1.1, GB 50205 construction welding standards, with 100% non-destructive testing (UT/MT) for all welding seams, eliminating defects such as incomplete fusion, cracks and pores. We implement scientific clamping & welding sequence to control thermal deformation, ensuring straightness, verticality and dimensional accuracy of large-size steel beams and columns, facilitating on-site assembly and installation.

We support drawing deepening optimization, blanking according to construction drawings, precision cutting, edge milling, drilling and tapping, as well as anti-corrosion and fireproof coating treatment according to building requirements. Each component comes with complete quality inspection reports and material certificates, meeting engineering acceptance and supervision standards, providing stable and reliable main bearing components for steel structure building projects.

1. Professional construction steel structure welding team, certified operation, compliant with national & international standards

2. Full-penetration welding with zero defects, strong bearing capacity, suitable for main building bearing parts

3. Scientific deformation control technology, ensuring high dimensional accuracy of large-size components

4. Complete material & inspection certificates, meeting engineering acceptance and supervision requirements

5. One-stop processing, reducing on-site construction difficulty and shortening project cycle

6. Adapt to large-span, high-rise and heavy-load steel structure building scenarios

• Industrial steel structure workshop main bearing steel columns & steel beams
• High-rise commercial & residential building steel structure components
• Large-span stadium & exhibition hall steel beam fabrication
• Warehouse & logistics building steel structure bearing parts
• Prefabricated steel structure building core components

ISO 9001, ISO 3834-2, AWS D1.1 Welding Certification, GB 50205 Construction Standard Compliance

Steel column welding fabrication, steel beam processing, large dimension structural steel parts, building steel structure components, Q355 steel welding, full penetration steel welding, construction steel parts, steel structure workshop components

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