API Codes

Module from the Inspection and NDE Curriculum curriculum.

Module 1 - API Inspection Codes · Learning Objectives · 1. Apply API 510 to pressure vessels in service · 2. Apply API 570 to in-service process piping · 3. Apply API 653 to aboveground welded storage tanks · 4. Identify scope differences (vessels vs piping vs tanks) · 5. Integrate with ASME PCC-2 repair and B31.3/VIII new construction · API Inspection Code Scope

Code	Scope	External	Internal	Key Clauses	Related Calcs
API 510	Pressure vessels in service	5 yr	Half RL or 10 yr	Class 1/2/3	Corrosion rate, Tmin
API 570	Piping systems in service	5-10 yr	Half RL	Class 1/2/3	CML, tmin, RL
API 653	Aboveground welded storage tanks	5 yr	10 yr or RBI	Monthly, external, internal	Settlement, bottom scan
API 579-1	Fitness for service	Any	Any	19 parts	LTA, crack, creep
API 580	RBI methodology	Any	Any	Qual/quant	Risk = PF x CF
API 581	RBI quantitative	Any	Any	Gen failure freq	Consequence modeling

Source: Inspection_NDE_Curriculum_v1.xlsx · Sheet: API Codes

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