How can you ensure the welding quality of a steel grid frame structure?

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 Welding is the backbone of steel grid frame stability. Here’s how professionals control welding quality:

Certified Welding Processes: Use GMAW (Gas Metal Arc Welding) or SAW (Submerged Arc Welding) per AWS D1.1 or ISO 3834.

Non-Destructive Testing (NDT):

Ultrasonic Testing (UT): Detects internal weld flaws like inclusions.

Magnetic Particle Testing (MT): Spots surface cracks.

Radiographic Testing (RT): Confirms internal fusion integrity.

Strict QA/QC Processes: All welds logged, sampled, and verified by third-party inspectors before proceeding with assembly.


Poor welds = costly repairs and structural risk. Most users concerned with “steel structure failures” ask how to avoid welding faults — this is the answer.

✅ Want to know how we reduce onsite welding to <5% of total joints? Ask for our prefab optimization methods.


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