TECHNICAL LIBRARY · ISO MECHANICAL-TEST SAMPLING
ISO 377:2017 — Samples and Test Pieces for Steel Mechanical Testing
Procurement reference for identification, location and preparation of steel samples and test pieces used in mechanical testing.
Edition control: ISO 377:2017 is the fourth edition, published in June 2017 and confirmed in 2022. Amendment 1:2025 was published in July 2025 and applies to this edition. Check the authorised text and amendment before use.
Scope in Procurement
ISO 377:2017 covers samples and test pieces for mechanical tests on steel sections, bars, rod, flat products and tubular products defined in ISO 6929. It may apply to other metallic products when agreed in the order.
Where the order or product standard differs, those requirements govern.
RFQ and Sampling Controls
- Product form, grade, condition and governing product standard
- Heat, lot, item and sampling-unit identification
- Sample location through the product section
- Longitudinal, transverse or other required orientation
- Sample removal and preparation route
- Test-piece geometry and machining controls from the governing documents
- Required test method and acceptance criteria
- Traceability from finished test piece to delivered product
All sample identifiers, preparation steps and test results should remain traceable to the delivered heat, lot or item and to the governing order documents.
Scope Boundary
ISO 377 controls mechanical-test samples and test pieces. Chemical-composition sampling is a different task addressed by ISO 14284 where applicable.
Related MNK Technical Pages
Official Publication and Access Policy
Check the official record for ISO 377:2017. Also check the official amendment record. Protected clauses, specimen drawings and tables are not reproduced on this website.
MNK-G.S.A | Industrial Procurement & Sourcing | mnkmetals.com | sales@mnkmetals.com
Define Sampling and Testing Before Quotation
Technical Sources & Revision
Source: ISO. ISO 377:2017
Document / edition: ISO 377:2017
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.