SIST EN ISO 13918:2018/A1:2021 PDF

Overview

EN ISO 13918:2018/A1:2021 is the CEN-endorsed amendment to ISO 13918 (title: Welding - Studs and ceramic ferrules for arc stud welding). Published September 2021 and adopted by CEN members, this amendment (ISO 13918:2017/Amd 1:2021) updates specific technical tables and bibliography in the existing standard for studs and ceramic ferrules used in arc stud welding. The document is available in English, French and German and was designated for national adoption by March 2022.

Key topics and technical changes

• Amendment scope: Modifies elements of EN ISO 13918:2018 by incorporating ISO 13918:2017/Amd 1:2021 without further alteration.
• Chemical notation update: In clause 5.3.3 (Table 2, SD1 and SD2 rows) the notation CEV is replaced by CE, and a clarifying NOTE is added referencing the calculation of carbon equivalent (CE) per ISO/TR 17671-2:2002.
• Ferrule designation: Table 17 was updated to replace the figure for ceramic ferrules with the revised designation MF.
• Bibliography: A new bibliographic reference was added - ISO/TR 17671-2:2002 (Welding - Recommendations for welding of metallic materials - Part 2: Arc welding of ferritic steels) - supporting the CE formula cited in the amendment.
• Standards governance: The amendment was prepared by ISO/TC 44 in collaboration with CEN/TC 121 and approved by CEN on 17 August 2021.

Applications and practical value

• This amendment refines how material chemical equivalence is expressed in the standard and clarifies ceramic ferrule designation - both important for consistent procurement, specification, and quality control of stud welding consumables.
• Practical uses:
  • Specifying compliant studs and ceramic ferrules for arc stud welding contracts and procurement.
  • Assisting designers, welding engineers and QA personnel in ensuring components meet the updated standard references and notations.
  • Supporting manufacturers and testing labs in aligning product documentation and marking with the amended tables and bibliography.

Who should use this standard

• Welding engineers and inspectors
• Manufacturers of weld studs and ceramic ferrules
• Quality managers and procurement teams in construction, shipbuilding, automotive and heavy fabrication
• National standards bodies and compliance officers

Related standards

• ISO 13918:2017 (base standard)
• ISO/TR 17671-2:2002 (referenced for carbon equivalent CE calculation)

Keywords: EN ISO 13918:2018/A1:2021, ISO 13918 amendment, arc stud welding, studs and ceramic ferrules, stud welding standard, CE carbon equivalent, CEN standard.