BS EN ISO 16432-2007 PDF

Full title and description

BS EN ISO 16432:2007 — Resistance welding — Procedure for projection welding of uncoated and coated low carbon steels using embossed projection(s). This document is the British adoption of ISO 16432:2006 and specifies recommended procedures and requirements for embossed-resistance-projection welding of two-sheet assemblies of low-carbon steels (uncoated and various metallic coatings) where single sheet thicknesses are typically within the 0.4 mm to 3 mm range.

Abstract

ISO 16432:2006 (adopted as EN ISO 16432:2007 / BS EN ISO 16432:2007) specifies requirements for embossed-resistance-projection welding used in fabrication of assemblies of uncoated and metallic-coated low carbon steel comprising two thicknesses of metal (maximum single-sheet thickness typically 0.4 mm to 3 mm). The standard lists covered coating types (hot-dip zinc/galvannealed, electrolytic zinc/zinc-iron/zinc-nickel, aluminium-coated, zinc-aluminium) and excludes organic- or primer-coated steels; Annexes provide guidance on equipment and welding conditions for various coated steels.

General information

• Status: Published; ISO 16432:2006 confirmed on review (status: Published / confirmed) and adopted by CEN as EN ISO 16432:2007 with national adoptions including BS EN ISO 16432:2007.
• Publication date: Original ISO edition published February 2006 (ISO 16432:2006); the EN/BS adoption dates appear in 2007 (EN ISO 16432:2007 / BS EN ISO 16432:2007 — published in national catalogues in 2007).
• Publisher: International Organization for Standardization (ISO) for the original text; British Standards Institution (BSI) for the BS EN ISO 16432:2007 publication.
• ICS / categories: 25.160.10 — Welding processes.
• Edition / version: ISO 16432:2006 (Edition 1 — 2006); adopted as EN ISO 16432:2007 and published as BS EN ISO 16432:2007.
• Number of pages: National publications vary; ISO lists 15 pages for ISO 16432:2006, while some national/adopted publications (BS/EN versions) show larger page counts (examples: 21–26 pages depending on national formatting). Users should check the specific national publication for exact page count.

Scope

This standard specifies requirements for embossed-resistance-projection welding in fabrication of assemblies of uncoated and metallic-coated low-carbon steel comprising two thicknesses of metal, where maximum single sheet thicknesses are typically 0.4 mm to 3 mm. It covers uncoated steels and a range of metallic coatings (hot-dip zinc/galvannealed, electrolytic zinc/zinc-iron/zinc-nickel, aluminium-coated, zinc‑aluminium) and explicitly excludes organic- or primer‑coated steels; annexes give guidance on equipment and welding conditions for various coated steels.

Key topics and requirements

• Procedure and parameter recommendations for embossed-resistance-projection welding (projection geometry, electrode configuration, machine characteristics).
• Acceptable material types and coatings (uncoated low-carbon steels; hot-dip zinc/iron‑zinc; electrolytic zinc/zinc-iron/zinc-nickel; aluminium-coated; zinc‑aluminium).
• Typical component thickness range (single sheet thickness approximately 0.4 mm to 3 mm) and two-sheet assembly conditions.
• Exclusion of organic- or primer-coated steels from the scope.
• References to test methods and related welding standards (normative references to specimen and test procedures for peel, chisel, cross-tension testing applicable to projection welds).

Typical use and users

Primary users include welding engineers, manufacturing/production engineers in automotive and light‑metal fabrication industries, quality and metallurgical test laboratories, welding procedure developers and auditors, and standards committees. The standard is used to define welding procedures, set production parameters, and support quality assessment and testing of embossed projection welds in coated and uncoated low-carbon steel assemblies.

Related standards

Standards commonly referenced with ISO 16432 include ISO 10447 (Welding — Peel and chisel testing of resistance spot, projection and seam welds), ISO 14270 (specimen dimensions and procedure for mechanized peel testing of resistance spot, seam and embossed projection welds), and ISO 14272 (specimen dimensions and procedure for cross-tension testing resistance spot and embossed projection welds); national EN/BS adoption notices and CEN forewords apply where EN ISO 16432:2007 was published.

Keywords

resistance welding; projection welding; embossed projection; low carbon steel; coated steel; galvannealed; electrolytic zinc; aluminium coating; welding procedure; welding tests; projection welds; BSI; EN ISO.

FAQ

Q: What is this standard?

A: It is ISO 16432:2006 — an international standard (adopted as EN ISO 16432:2007 and published nationally as BS EN ISO 16432:2007) that specifies procedures for embossed-resistance-projection welding of uncoated and metallic-coated low‑carbon steels.

Q: What does it cover?

A: It covers requirements and guidance for projection welding using embossed projections on low-carbon steels (various metallic coatings), typical sheet thickness ranges (about 0.4–3 mm), and provides annex guidance for welding equipment and conditions; organic- or primer-coated steels are excluded.

Q: Who typically uses it?

A: Welding and production engineers (automotive and fabrication sectors), metallurgical and quality-test laboratories, welding procedure writers, and standards/inspection bodies use it to develop, document and verify projection-welding procedures and acceptance testing.

Q: Is it current or superseded?

A: The original ISO edition is ISO 16432:2006 (published February 2006); ISO shows that the 2006 edition was reviewed and confirmed (status: confirmed in review cycles up to 2021). The EN/BS adoption was published in 2007 (EN ISO 16432:2007 / BS EN ISO 16432:2007). Users should verify any subsequent revisions or national withdrawal notices with their national standards body before relying on the document for regulatory or contractual purposes.

Q: Is it part of a series?

A: It is a stand‑alone ISO standard addressing projection welding but cites and is used together with other welding test and specimen standards (for example ISO 10447, ISO 14270 and ISO 14272) that cover testing and specimen dimensions for resistance spot, seam and projection welds.

Q: What are the key keywords?

A: Key keywords are: resistance welding; projection welding; embossed projection; low carbon steel; coated steel; welding procedure; peel test; cross-tension test.