ISO 6947-2019 PDF

Full title and description

Welding and allied processes — Welding positions. This International Standard defines the system used to describe welding positions for testing and production, covering butt and fillet welds in all product forms and giving guidance on orientation, slope and rotation of weld axes.

Abstract

ISO 6947:2019 specifies fundamental welding positions and a method to locate straight welds in space by means of slope and rotation. The document includes illustrative examples for limits of slope and rotation for production welds and a comparison with U.S. designation systems for welding positions (annexes provide examples and comparison material).

General information

• Status: Published (current edition).
• Publication date: 12 October 2019.
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.160.40 (Welded joints and welds).
• Edition / version: Edition 4 (2019).
• Number of pages: 19.

Scope

ISO 6947:2019 defines welding positions for both testing and production applications. It applies to butt and fillet welds in all product forms and provides definitions, slope and rotation angle values, and examples to permit unambiguous specification and interpretation of welding orientations. Annex A gives practical examples of slope and rotation limits for production welds; Annex B compares ISO positions with common U.S. designation systems.

Key topics and requirements

• Standardized definitions of fundamental welding positions for butt and fillet welds.
• Method for locating straight welds in space using slope and rotation angles.
• Numeric values and limits for slope and rotation to permit repeatable specification and testing.
• Illustrative diagrams and examples showing weld-axis slopes and face rotations (including Annex A examples).
• Comparison with U.S. designation systems for welding positions (Annex B) to aid interpretation between systems.
• Applicability to both test specimens and production welds to support qualification and inspection activities.

Typical use and users

Used by welding engineers, fabricators, welding supervisors, weld inspectors, test laboratories, standards bodies and training organizations. Common applications include preparing test specimens, specifying weld orientations on drawings, defining welding procedure qualifications and supporting welder performance tests and inspections.

Related standards

This standard replaces earlier editions of ISO 6947 (for example ISO 6947:2011) and is commonly published/adopted as a regional standard (for example EN ISO 6947:2019 / national adoptions). It is maintained within the ISO technical committee for welding (ISO/TC 44 and relevant subcommittees) and is typically used alongside other welding standards covering weld preparation, quality requirements and welder qualification.

Keywords

welding positions; slope; rotation; weld orientation; butt weld; fillet weld; welding testing; ISO 6947:2019; welding specification; weld axis.

FAQ

Q: What is this standard?

A: ISO 6947:2019 is an International Standard titled "Welding and allied processes — Welding positions" that defines the system and parameters used to describe welding positions for butt and fillet welds.

Q: What does it cover?

A: It covers definitions of fundamental welding positions, the method to locate straight welds in space using slope and rotation, numeric values and illustrative examples, and includes annexes with production examples and a comparison to U.S. designation systems.

Q: Who typically uses it?

A: Welding engineers, fabricators, welding inspectors, test laboratories, training organizations and standards committees use it to specify weld orientations, prepare test pieces, and harmonize position terminology across projects and regulations.

Q: Is it current or superseded?

A: The current (4th) edition was published on 12 October 2019 and supersedes earlier editions (for example ISO 6947:2011). As published by ISO it is the active edition for this document family.

Q: Is it part of a series?

A: ISO 6947 is a standalone International Standard within the set of standards managed by ISO technical committee ISO/TC 44 (welding). It is commonly referenced alongside other welding-related standards (regional adoptions exist, such as EN ISO 6947:2019).

Q: What are the key keywords?

A: Key keywords are welding positions, slope, rotation, weld orientation, butt weld, fillet weld, welding testing, and ISO 6947:2019.