Overview
EN ISO 13918:2018 - Welding: Studs and ceramic ferrules for arc stud welding is the European adoption of ISO 13918:2017 (Corrected version 2018-05). The standard specifies requirements for studs and ceramic ferrules used in arc stud welding, covering essential aspects such as dimensions, materials and mechanical properties, manufacture, inspection, marking and designation. EN ISO 13918:2018 supersedes the 2008 edition and is intended for use across CEN member countries.
Key topics and technical requirements
- Scope and ordering information - Defines what to specify when ordering studs and ferrules (type, material, dimensions, finish).
- Dimensions and tolerances - Detailed dimensional requirements for multiple stud forms (fully-threaded, partially threaded, unthreaded, studs with internal thread, shear connectors, insulation pins, etc.) and for ceramic ferrules.
- Materials and mechanical characteristics - Material categories, mechanical property requirements and permissible material combinations (including studs joined by friction welding).
- Coating and weldability - Rules on coatings and surface conditions that affect arc stud weld quality and weldability.
- Durability and manufacture - Requirements related to production methods and expected service performance.
- Inspection and testing - Chemical analysis, mechanical testing, sample sizes and inspection criteria.
- Marking and traceability - Marking requirements for studs and ferrules to ensure traceability and correct designation.
- Designations - Standardized naming conventions for studs and ceramic ferrules to ensure consistent specification.
Applications and practical value
EN ISO 13918:2018 is directly applicable to industries and activities that use arc stud welding to attach fasteners and connectors, including:
- Construction and civil engineering (shear connectors in composite decks)
- Shipbuilding and offshore (equipment and fixture mounting)
- Automotive and rail (assembly of structural or accessory components)
- Mechanical and electrical equipment manufacturing (mounting studs, insulation pins)
- Welding manufacturers and suppliers providing studs, ferrules and arc stud-welding consumables
Using EN ISO 13918:2018 helps ensure compatibility between supplied studs/ferrules and welding procedures, improves weld quality, facilitates procurement and inspection, and supports regulatory and contractual compliance.
Who should use this standard
- Manufacturing engineers and product designers specifying fasteners for arc stud welding
- Welding engineers and procedure developers
- Quality managers, inspectors and testing laboratories
- Suppliers and manufacturers of studs, ceramic ferrules and arc stud-welding equipment
- Procurement and standards compliance teams
Related standards
- ISO 13918:2017 (original international text adopted as EN ISO 13918:2018)
- ISO 15510 (material composition references cited)
- ISO/TR 15608 (material groupings referenced for some stud types)
Keywords: EN ISO 13918:2018, arc stud welding, studs, ceramic ferrules, dimensions, materials, weldability, inspection, marking, shear connectors.
