JIS Z 2249 specifies a method for measuring the conical cup value (CCV) of thin steel sheet. The result is used as an index of sheet-metal formability in press forming and related manufacturing workflows.
If you need help matching CCV requirements to your material thickness, tooling style, or reporting format for a specific edition, you can talk with our team about your application.
JIS Z 2249: Method of conical cup test
JIS Z 2249 is a Japanese Industrial Standard for the conical cup test. It is used to produce a CCV value from a controlled forming operation, supporting comparisons between sheet lots, process changes, and supplier material selections.
This standard is commonly referenced when a purchaser needs a practical forming-related index rather than only tensile properties.
Quick Definition
What it is: A standard test method for the conical cup test.
What it outputs: A conical cup value (CCV) for thin steel sheet within the thickness range stated by the standard.
What it’s used for: Screening and comparing sheet-metal formability for stamping / drawing-type forming operations.
What This Standard Covers
JIS Z 2249 defines how to measure CCV for thin steel sheet in the thickness range covered by the document (commonly cited as 0.5 mm to 1.6 mm). It focuses on a conical-cup forming action and the criteria used to determine the reported CCV result.
Because CCV is influenced by tooling geometry and how the forming is performed, edition-correct setup and verification are important when comparing results across labs or suppliers.
Why This Standard Matters in Testing
CCV testing is often used as a practical indicator of how a steel sheet may behave in forming operations where cracking or splitting risk is a concern. For QA/QC, it can support lot acceptance, supplier comparisons, and monitoring of process consistency.
For R&D and process engineering, CCV can be used alongside tensile testing and other formability-related measures to select materials and set forming windows.
Common Materials, Product Types, or Applications Covered
JIS Z 2249 is used for thin steel sheet products where forming performance matters, including stamped or drawn components and general press-formed sheet-metal parts.
Common use cases: Incoming inspection for press shops, supplier qualification, comparison of sheet lots or grades, and process-change verification where forming robustness is being tracked.
Common Test or Verification Workflow
A typical workflow is to prepare sheet specimens from the lot of interest, perform the conical cup forming operation using the specified tooling and settings, and record the CCV result using the standard’s acceptance/endpoint definition.
Common workflow elements: Defined specimen thickness range, standardized tooling geometry, controlled forming action, and documented reporting of the CCV result (plus any required test conditions tied to the cited edition).
Equipment Commonly Used for This Standard
JIS Z 2249 is typically performed on a dedicated sheet-metal forming / cup test system using conical cup tooling. Depending on the lab, the system may be a purpose-built formability tester or a press-style frame designed for standardized cup testing.
Common equipment elements: Conical cup tooling set (punch/die/blank-holder as applicable), a controlled drive system with suitable force capacity, measurement/recording of the CCV endpoint, and fixtures/accessories appropriate for the sheet thickness range.
When quoting equipment, the key practical factors are matching the correct JIS Z 2249 tooling style, ensuring stable alignment and repeatability, and confirming the measurement approach for the CCV endpoint that your customer or internal spec requires.
How to Read This Designation or Revision
JIS standards are commonly cited with a year suffix (for example, JIS Z 2249:2022). The cited year matters because tooling details, calculation/reporting expectations, and referenced documents can differ between editions.
Revision sensitivity: If a purchase order or customer spec calls out a specific year/edition, align the equipment setup, tooling, and reporting to that exact citation rather than relying on legacy lab defaults.
Related Standards, Methods, or Frameworks when useful
CCV is often used alongside other mechanical-property and sheet-formability evaluations (for example tensile testing and other forming-related tests) when building a broader material qualification plan. The best companion methods depend on the failure mode you are managing (splitting, wrinkling, anisotropy, etc.) and the specific forming process.
If you need to align a broader test plan to a customer drawing or internal material spec, choose companion methods that are explicitly referenced by your requirement set.
Discuss equipment options for JIS Z 2249
If you are specifying a conical cup / formability test system for production QA or supplier qualification, you can request a detailed quote with the tooling and configuration matched to the JIS Z 2249 edition you need to run.