Weld Procedure Qualifier Calculator
Determine qualified thickness range, positions, and essential variables for a Welding Procedure Specification (WPS) per AWS D1.1.
Inputs
in
in
Results
Min Qualified Thickness
0.25 in
Max Qualified Thickness
1 in (999 = unlimited)
Qualified Positions1 (count)
Essential Variables10 variables
How to Use This Calculator
- Enter Base Metal Thickness, Weld Position, and Welding Process.
- Set Filler Metal Diameter.
- Review Min Qualified Thickness and Max Qualified Thickness (in (999 = unlimited)).
- Use Qualified Positions ((count)) and Essential Variables (variables) to inform your decision.
- Use the chart to visualize the results and explore different scenarios by adjusting inputs.
How the result changes with Base Metal Thickness
| Base Metal Thickness | Min Qualified Thickness | Max Qualified Thickness |
|---|---|---|
| 0.66 | 0.33 in | 1.31 in (999 = unlimited) |
| 2.14 | 1.07 in | 999 in (999 = unlimited) |
| 3.92 | 1.96 in | 999 in (999 = unlimited) |
| 5.41 | 2.71 in | 999 in (999 = unlimited) |
What each input means
- Base Metal Thickness
- Thickness of the test coupon base metal.
- Weld Position
- 1 = Flat (1G/1F), 2 = Horizontal (2G/2F), 3 = Vertical (3G/3F), 4 = Overhead (4G/4F).
- Welding Process
- 1 = SMAW, 2 = GMAW, 3 = FCAW, 4 = GTAW.
- Filler Metal Diameter
- Diameter of the filler wire or electrode used in the test.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersBase Metal Thickness = 0.5, Weld Position = 1, Welding Process = 2, Filler Metal Diameter = 0.035 = 4 input(s) provided
- Calculate Min Qualified ThicknessMin Qualified Thickness0.25 = 0.25
- Calculate Max Qualified Thickness1 = 1
- Calculate Qualified PositionsQualified Positions1 = 1
- Calculate Essential VariablesEssential Variables10 = 10
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