6.6 Corrosion Allowance

Calculate thickness and allowance for corrosion protection

Standards catalog

Validation: indicative · Method band: formula

Indicative method: Indicative closed-form or numerical model

Linear elastic material behavior unless noted otherwise.
User is responsible for load combinations and load factors per the selected design code.

Does not replace a licensed professional engineer or official code compliance review.

Check	IND	US	EU	ISO
Remaining life margin	implemented	—	—	—
Required thickness margin	implemented	—	—	—

Purpose: Required wall thickness given corrosion rate and design life.

Method: Closed-form

t_{r e q} = t_{0} + \overset{c}{˙} t_{l i f e} (1 + margin)

UI: Legacy layout; extracted monolith; unit profile.

Gaps: Uniform corrosion only; no localized/pitting models; no API/ASME vessel integration.

7. Pressure systems

Maintainer note: Conservative allowance equations with straightforward inputs.