AutoCAD Mechanical 2021 brought an important update for engineers and designers working with weld symbology: support for ISO 2553:2013 and DIN EN ISO 2553:2014 revisions. This update ensures that the welding symbols generated in the software comply with the latest international standards, eliminating rework and ensuring the standardization of mechanical designs.
What has changed in ISO 2553:2013 welding symbols
The ISO 2553 standard defines the representation of welds in technical drawings, establishing rules for symbols, dimensions and process indications. The 2013 review brought significant changes to the way some symbols are represented, especially in the following aspects:
- Updated field welding and all-round welding symbols
- New rules for indicating welding processes in the tail of the symbol
- Standardization of dimensions of secondary elements such as chamfers and lugs
- Harmonization with the AWS A2.4 standard at specific points
- Clarification on the representation of intermittent and butt welds
The DIN EN ISO 2553:2014 version is the European adoption of the same standard, with specific adjustments for the German market. AutoCAD Mechanical 2021 now supports both revisions simultaneously, allowing the user to choose the standard applicable to their project.
How to enable new standards in AutoCAD Mechanical 2021
Configuring welding symbol standards in AutoCAD Mechanical is done directly in the software interface. The process is simple and only takes a few minutes:
- Access settings: Go to Manage > Options and click on the AM:Standards tab
- Select the desired standard: in the Symbols section, choose ISO 2553:2013 or DIN EN ISO 2553:2014
- Set as default: Check the option to save as the default template configuration
- Update existing drawings: use the AMOPTIONS command to apply the new standard to projects that have already started
- Check compatibility: When saving to previous versions, new symbols may not be recognized
This last point deserves attention: when saving a drawing with the new ISO 2553:2013 symbols in AutoCAD Mechanical 2021 in a previous version format, the updated symbols may not be displayed correctly. Autodesk has documented this behavior and recommends checking symbols for fidelity after export.
Advantages of complying with updated standards
Keeping projects in compliance with the latest standards brings concrete benefits to factories, design offices and freelancers:
- International standardization: designs understandable in any country that adopts ISO, facilitating collaboration with global teams
- Error reduction: Clear, standardized symbols prevent misinterpretation during manufacturing and assembly
- Legal Compliance: meets regulatory requirements for audits, ISO certifications and contracts that require adherence to current standards
- Integration with the ecosystem: projects following the same regulatory base integrate better with Inventor, Plant 3D and other Autodesk tools
Engineers who work with technical documentation, bills of materials, and manufacturing instructions directly benefit from symbol consistency. A drawing that follows ISO 2553:2013 is interpreted in the same way by a welder in Brazil, Germany or Japan, eliminating rework caused by differences in interpretation. Furthermore, the traceability of regulatory reviews facilitates quality audits and process certifications, as each symbol carries the reference of the applied standard.
How to get AutoCAD Mechanical
AutoCAD Mechanical is available as part of Autodesk's specialized toolset, accessible via subscription or as part of AutoCAD with included toolsets. For those who need a complete CAD solution for mechanical projects with support for ISO 2553 and DIN EN ISO 2553 standards, it is worth checking out the options available on CanalVIP catalog, which offers licenses and software for engineering and architecture with specialized technical support.