TECHNICAL LIBRARY · ISO STAINLESS CORROSION
ISO 3651-2:1998 — Intergranular Corrosion of Stainless Steels
Procurement reference for sulfuric-acid-media tests used to determine resistance of stainless steels to intergranular corrosion.
Edition control: ISO 3651-2:1998 is the published second edition, May 1998, last confirmed in 2021. The third edition remains a committee draft (ISO/CD 3651-2, stage 30.20), not a published replacement. Check the authorised text and order requirements before use.
Scope in Procurement
ISO 3651-2:1998 addresses corrosion tests in sulfuric-acid-containing media for ferritic, austenitic and ferritic-austenitic (duplex) stainless steels.
RFQ and Test Controls
- Exact stainless grade and governing product standard
- Required ISO 3651-2 method or agreed test route
- Product form, delivery condition and fabrication or heat-treatment history
- Sample location, orientation, preparation and traceability
- Required sensitization or as-delivered condition where specified
- Examination, measurement and acceptance criteria
- Edition control because a replacement edition is under development
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 standard addresses intergranular-corrosion resistance under its defined test conditions. It does not guarantee resistance to every corrosive medium or replace the product specification.
Related MNK Technical Pages
Official Publication and Access Policy
Check the official record for ISO 3651-2:1998. Also check the official revision project. Protected procedures, solution recipes, specimen drawings and acceptance tables are not reproduced on this website.
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Define the Corrosion-Test Route Before Quotation
Technical Sources & Revision
Source: ISO. ISO 3651-2:1998
Document / edition: ISO 3651-2:1998
Source used for: The public ISO catalogue record supports the document identity, publication status and scope summary on this page. It is used for the stated material or product coverage and the named classification, inspection or test method, where applicable. It does not establish numerical acceptance limits or certify a supplied product.
Technical source review:
Review scope: the public publisher record and this procurement summary, not a clause-by-clause audit of the full standard. Use the governing publication, purchase specification and product or test documentation for acceptance.