API 579 calculators

• API 579 Residual Stress (Annex 9D) — API 579-1 (2021) Annex 9D — Welding residual stress profile through thickness
• API 579 Stress Intensity Factor (Annex 9B) — API 579-1 (2021) Annex 9B — Mode I stress intensity factor K_I compendium (plate & cylinder, 12 solutions)

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