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Weld Size Calculator

Calculate fillet weld throat thickness and approximate capacity from leg length.

Estimate the effective throat thickness of a fillet weld and its approximate design capacity per unit length.

Inputs

Results

Effective throat5.66 mm
Capacity per mm (approx)1.663 kN/mm
Total capacity (approx)166.3 kN

Important Notes

  • Approximate values for guidance only, based on a simplified throat = 0.707 × leg.
  • Design welds to AS/NZS 1554 with capacity factors and a qualified engineer.

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