TECHNICAL LIBRARY · ASTM LOCALIZED CORROSION
ASTM G48-25 — Pitting and Crevice Corrosion Testing
Procurement reference for defining ferric-chloride tests used to compare pitting and crevice-corrosion resistance.
Edition control: ASTM G48-25 is the active edition identified in the official ASTM record checked on 31 August 2026. Confirm the authorised publication and order requirements before use.
Scope in Procurement
ASTM G48-25 covers laboratory procedures for comparing resistance of stainless steels and related alloys to initiation of pitting and crevice corrosion in oxidizing chloride environments.
RFQ and Test Controls
- Exact ASTM G48 method required by the product or project specification
- Alloy grade, product form, delivery condition and heat treatment
- Sampling location, orientation and heat or lot identity
- Specimen dimensions and surface condition before testing
- Test temperature, exposure period and required endpoint
- Cleaning, examination, measurement and reporting requirements
- Acceptance criteria and retest route stated by the governing documents
The inquiry and purchase order should link the test result to the exact material, product condition, sample identity and governing acceptance requirement.
Scope Boundary
The methods support comparative ranking under specified laboratory conditions. They do not prove corrosion performance in every service environment or describe propagation after initiation.
Related MNK Technical Pages
Official Publication and Access Policy
Check the official record for ASTM G48-25. Protected procedures, solution recipes, specimen drawings and acceptance tables are not reproduced on this website.
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