Weld Discontinuity Acceptance Limits Calculator

Determine weld discontinuity acceptance limits per AWS D1.1 and ASME Section IX for common weld defects

Input Parameters

Results

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Max Single Indication
in
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Max Aggregate Length
in
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Max % of Weld Length
%
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Acceptance Standard
Note: Acceptance criteria vary by code, loading condition, and weld type. Always reference the specific code edition. AWS D1.1 has different criteria for static vs. cyclic loading.

Reference

AWS D1.1 Table 6.1 / ASME IX QW-194 / API 1104 Table 9.3 Porosity: max dia = t/4 or 3/16" (lesser) Slag: max length varies by code and thickness Incomplete fusion/penetration: generally not acceptable in CJP welds