The standard specifies essential variables such as parent material, thickness, welding consumables, and heat input that, if changed, would require a new qualification.
| Pitfall | Consequence | Solution | | :--- | :--- | :--- | | Using the wrong part of ISO 15614 | Invalid qualification (Part 1 does not cover overlays) | Verify you are using . | | Ignoring the substrate group | Overlay fails in production due to mismatch | Always qualify on the actual group. | | Not testing for hardness on hardfacing | Wear life unknown | Mandatory hardness test per Clause 9.4. | | Assuming free PDFs are current | Audit failure from outdated standard | Purchase the official 2025-compliant version. | en iso 15614-7 pdf
Thus, if your project requires cladding a carbon steel vessel with Inconel 625 or stainless steel 316L, you reference EN ISO 15614-7. The standard specifies essential variables such as parent
Ensuring the top layer of the overlay meets the required chemical composition (especially important for corrosion-resistant overlays). | | Not testing for hardness on hardfacing