Weld Strength Calculator
Calculate allowable load and factor of safety for fillet and butt welds under shear, tension, and bending loads
Weld Strength Calculator
Calculate allowable load and factor of safety for fillet and butt welds under shear, tension, or bending loads.
Formulas
AWS: 0.3 × S_ut of weld metal
Results
Throat
7.07 mm
Weld Area A
1060.50 mm²
Allowable Load Q
106050 N
Actual Stress
47.15 MPa
Factor of Safety
2.121
Reference τ_allow (AWS D1.1)
How to Use This Calculator
Enter your input values
Fill in all required input fields for the Weld Strength Calculator. Most fields include unit selectors so you can work in your preferred unit system.
Review your inputs
Double-check that all values are correct and that you have selected the right units for each field. Incorrect units are the most common source of calculation errors.
Read the results
The Weld Strength Calculator instantly computes the output and displays results with units. All calculations happen in your browser — no loading time and no data sent to a server.
Formula Reference
Weld Strength Calculator Formula
See calculator inputs for the governing equation
Variables: All variables and their units are labeled in the calculator interface above.
When to Use This Calculator
- •Use the Weld Strength Calculator when solving homework or exam problems that require quick numerical verification of your hand calculations.
- •Use it during the design phase to rapidly iterate on parameters before running detailed finite element simulations.
- •Use it when reviewing a colleague's calculation or checking a vendor's data sheet for plausibility.
- •Use it to generate reference data for a technical report or presentation without manual computation.
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