ISO 16143-1:2014

Overview

ISO 16143-1:2014 - "Stainless steels for general purposes - Part 1: Corrosion‑resistant flat products" specifies the technical delivery conditions for hot‑ or cold‑rolled sheet/plate and strip made from the most important corrosion‑resistant stainless steel grades. It covers what purchasers must specify, how grades are designated and classified, and the required production, testing and documentation practices for corrosion‑resistant flat products.

Key topics and technical requirements

• Scope and product forms: Hot‑ and cold‑rolled sheet, plate and strip for general purposes (not special‑purpose components).
• Grade classification: By microstructure - austenitic, austenitic‑ferritic (duplex), ferritic, martensitic, and precipitation‑hardening steels.
• Designation and numbering: Steel names per ISO/TS 4949 and steel numbers per ISO 15510.
• Information to be supplied by the purchaser: Quantity, product form, dimensional standard (e.g. ISO 9444 / ISO 9445), steel name/number, process route/surface finish, heat‑treatment condition, inspection document type (ISO 10474), and optional tests.
• Chemical composition: Cast analysis limits and permissible product‑analysis deviations (see Tables referenced in the standard).
• Mechanical properties: Tensile and proof strength, hardness and elevated‑temperature values for specified heat‑treatment conditions (exceptions apply for some process routes).
• Corrosion behavior: Susceptibility to intergranular corrosion referenced to ISO 3651‑2; selection of test(s) should reflect the intended environment.
• Surface quality and internal soundness: Prime surface designation, expected finish for coils/sheets, and optional nondestructive verification for internal soundness (thickness ≥ 6 mm).
• Inspection, testing & documentation: Inspection procedures and certificates per ISO 10474, test methods references, retest rules and marking requirements.
• Annexes: Practical guidance on fabrication and heat treatment (Annex A), cross‑reference grade tables (Annex B), process/finish abbreviations (Annex C), and applicable dimensional standards (Annex D).

Practical applications and users

ISO 16143‑1 is essential for:

• Steel producers and mills specifying and supplying corrosion‑resistant flat products (sheet, plate, strip).
• Procurement teams and specifiers creating purchase orders for stainless steel materials.
• Fabricators, welders and heat‑treatment shops using guidance on delivery condition and further treatment.
• Quality managers and inspectors verifying conformity, test reports and marking.
• Designers and engineers in construction, food processing, chemical equipment, architectural façades, automotive and general manufacturing who require consistent material performance and traceability.

Related standards

• ISO 3651‑2 (intergranular corrosion test), ISO 404 (general technical delivery requirements), ISO 10474 (inspection documents), ISO 15510 (stainless steel composition), and dimensional standards ISO 9444 / ISO 9445 (referenced for sizes and tolerances).

Keywords: ISO 16143-1:2014, corrosion‑resistant stainless steels, stainless steel flat products, technical delivery conditions, sheet plate strip, surface finish, inspection certificate.