EN 10232:1993 specifies a bend test method for full-section metallic tubes of circular cross-section. It is used to evaluate whether a tube can undergo plastic deformation in bending without unacceptable cracking or other damage.
This standard is commonly referenced as part of tube product qualification or incoming inspection where bendability is a key requirement. If you need help matching an order or drawing note to the correct edition or successor standard, talk with our team.
EN 10232: Metallic materials — Tube (in full section) — Bend test
EN 10232 is a mechanical test method focused on bending a short tube length (full cross-section) to assess formability in a controlled bend. It is intended for circular metallic tubes and is commonly applied when bend performance needs to be demonstrated as part of technical delivery conditions.
Quick definition
What it is: A bend test method for full-section circular metallic tubes.
What it tells you: Whether the tube can sustain plastic deformation in bending (bendability) without unacceptable cracking or damage.
Typical use: Product qualification and inspection support for metallic tube supply.
What this standard covers
EN 10232 describes a procedure for determining the ability of full-section metallic tubes of circular cross-section to undergo plastic deformation in bending.
Applicability limit: The method is meant for tubes with outside diameter not greater than 65 mm.
Why this standard matters in testing
A tube can meet chemistry and tensile properties yet still perform poorly when bent during fabrication or installation. A dedicated bend test helps reduce the risk of splitting, cracking, or premature failures when the tube is formed into shape.
For QA/QC teams, EN 10232 typically supports acceptance decisions (pass/fail) and helps confirm process consistency for tube manufacturing routes that affect ductility.
Common materials, product types, or applications covered
EN 10232 is written for metallic tubes with circular cross-section. It may be specified for tubing where forming operations (manual bending, machine bending, coiling, or fit-up bending) are expected in downstream use.
Common contexts: General engineering tubing, mechanically formed assemblies, and applications where bendability is a practical functional requirement.
Common test or verification workflow
EN 10232 is usually one element within a broader tube verification plan.
Typical workflow steps:
- Select tube samples per the applicable product or purchase requirements.
- Prepare a tube section as the test piece.
- Bend the full-section tube using appropriate tooling and a defined procedure.
- Inspect the bent area for indications such as cracking and record the outcome in a test report.
Equipment commonly used for this standard
EN 10232 is primarily a forming/bendability evaluation, so the key equipment requirement is controlled bending with suitable tooling for tube geometry.
Common equipment: Tube bend test device or bend fixture, bend formers/mandrels (as applicable), supports/rollers, and basic measurement/inspection tools for documenting the bend and condition of the tube after bending.
Equipment selection is typically driven by tube diameter range, wall thickness range, and how the standard is invoked in the controlling product specification. If you are configuring a system for a defined tube size range, you can request a detailed quote for an equipment package matched to your lab throughput and reporting needs.
How to read this designation or revision
Designation: “EN 10232” refers to the European standard for the tube (in full section) bend test.
Year matters: When cited as “EN 10232:1993,” the year identifies the edition. EN 10232 has been superseded, and the bend test is commonly referenced via its successor standard (EN ISO 8491). When reviewing requirements, match the exact cited edition in the purchase order, drawing, or product standard.
Related standards, methods, or frameworks
EN ISO 8491: Successor standard that supersedes EN 10232 for the metallic tube bend test method.
If a contract references both an EN tube delivery condition standard and a tube bend test method, confirm which document governs sampling, acceptance criteria, and reporting.
Need help selecting a bend test setup for tube qualification?
If you are standardizing bend testing across multiple tube sizes or updating from older EN citations to current ISO-based references, contact our team to align the test approach, tooling, and documentation with your requirement.