Weld Strength Calculator
Approximate the weld capacity in shear or tensile based on weld size and material properties.
Additional Information and Definitions
Fillet Leg Size
The leg size of the fillet weld in inches (or cm). Must be a positive value.
Weld Length
Total effective length of the weld in inches (or cm). Must be positive.
Material Shear Strength
Shear strength of weld metal in psi (or MPa). Example: 30,000 psi for mild steel.
Material Tensile Strength
Tensile strength of weld metal in psi (or MPa). Example: 60,000 psi for mild steel.
Loading Mode
Select whether the weld is primarily loaded in shear or tension. This changes the strength used.
Welding Joint Analysis
Simplify your fabrication checks with a quick weld strength estimate.
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Weld Terminology
Key concepts for welded joint strength analysis
Fillet Weld:
A triangular cross-section weld that joins two surfaces at right angles.
Leg Size:
The length of the weld's leg in a fillet, typically measured along each side of the joint.
Shear Strength:
Material's capacity to withstand forces that slide layers against each other.
Tensile Strength:
Maximum stress a material can withstand being pulled before breaking.
0.707 Factor:
Approximation for fillet weld effective throat, since effective throat ≈ 0.707 x leg size.
Weld Length:
Total effective length of the weld that actively resists load.
5 Intriguing Facts About Welding
Welding is at the heart of modern fabrication, yet it hides some enthralling details that may surprise you.
1.Ancient Roots
Blacksmiths in the Iron Age used forge welding, heating metals till they bonded under hammering. Humans have welded for millennia!
2.Space Welding
Cold welding occurs in vacuum, where metals can fuse upon contact if no oxide layer is present—an intriguing phenomenon for astronauts.
3.Diverse Processes
From MIG and TIG to friction stir, welding techniques vary widely. Each method suits different materials and thicknesses.
4.Underwater Marvels
Wet welding allows repairs on submerged structures, though it requires special electrodes and technique to handle water hazard.
5.Robotic Breakthroughs
Automation has revolutionized welding speed and precision in manufacturing lines, ensuring consistent quality across countless products.