EN ISO 15614-3:2008 PDF

Overview

EN ISO 15614-3:2008 - "Specification and qualification of welding procedures for metallic materials - Welding procedure test - Part 3: Fusion welding of non-alloyed and low-alloyed cast irons" is a CEN-adopted ISO standard that specifies how a preliminary welding procedure specification (pWPS) for production and repair fusion welding of non-alloyed and low-alloyed cast irons is to be qualified. The standard defines execution conditions for welding procedure tests, the range of qualification (i.e., which variables are covered by a successful test), and the required examinations and acceptance criteria. It applies to grey, malleable, spheroidal graphite and austempered ductile cast irons cast to EN 1561/1562/1563/1564 and is also applicable in principle where cast iron is welded to steel or similar materials.

Key topics and technical requirements

• Qualification process: How to qualify a pWPS by performing a welding procedure test and recording results in a welding procedure qualification record (WPQR).
• Welding processes covered: Fusion processes in accordance with ISO 4063, including manual metal arc (MMA), MIG/MAG, TIG, submerged arc, flux-cored and related arc processes commonly used for cast iron repair and production.
• Test piece requirements: Shape, dimensions and preparation of specimens for procedure testing and for taking test coupons.
• Examination and testing: Mandatory non‑destructive testing (visual, penetrant as applicable) and destructive tests (macroscopic, mechanical tests) plus location and sampling of test specimens.
• Acceptance criteria and re‑testing: Criteria for accept/reject of welded test pieces and rules for re‑testing if necessary.
• Range of qualification: Variables and limits that define which production and repair operations are covered by the qualified WPS.
• Relation to previous tests: New standard does not invalidate earlier national qualifications; additional tests may be required only to demonstrate technical equivalence.

Applications and who uses it

• Welding engineers and procedure writers developing pWPS for cast iron production or in-service repair.
• Foundries, fabricators and maintenance teams performing finishing or repair welding on grey, malleable, spheroidal or austempered ductile castings.
• Welding inspectors and quality managers responsible for WPQR validation, NDT and acceptance decisions.
• Certification bodies and purchasers who require standardized qualification of welding procedures for cast iron components.

Related standards

• ISO 15607 (general rules for welding procedure specification/qualification)
• ISO 15609-1 / ISO 15609-2 (WPS formats)
• EN 1561 / EN 1562 / EN 1563 / EN 1564 (cast iron material standards)
• EN 571-1, EN 970 (NDT/visual), EN 1321 (macroscopic/microscopic examination)
• EN 1011-8 (welding recommendations for cast irons)

EN ISO 15614-3:2008 is essential for consistent, auditable qualification of fusion welding procedures on cast iron - improving repeatability, safety and component reliability in production and repair welding.