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ASTM D624 Die C Cutting Die – Unnicked 90° Angle Tear Specimen
Unnicked 90° Angle Tear Specimen · Tear specimen — built to ASTM D624. Hardened steel or economical ribbon steel.
Brand: Universal Grip | Model: / UGC-CDR-D624-C | ● Made to order
Cuts the ASTM D624 Die C unnicked 90° Angle Tear Specimen profile: 102 mm overall length
Two styles: hardened steel for 0–5 mm, ribbon steel for 0–3 mm
Integral ejector (hardened) or foam pad (ribbon) pushes each specimen free
Fits manual, pneumatic and hydraulic sample-cutting presses
Free test cuts on your material before you order
Custom profiles, multi-cavity dies and nick/notch features on request
Downloads: Ribbon Steel Die Data Sheet (PDF)
Standards: ASTM D624
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Precision cutting die for ASTM D624 Die C unnicked 90° Angle Tear Specimen specimens
This Universal Grip die cuts the unnicked 90° Angle Tear Specimen (tear specimen) defined in ASTM D624: Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers. ASTM D624 measures the tear resistance of rubber and TPE sheet using several die geometries. Die C is the unnicked 90° angle specimen where the tear initiates at the inner vertex of the right angle.
We make it in two styles so the die suits the material you cut. The one-piece hardened steel die is machined from a single piece of steel and holds its edge on rigid & semi-rigid plastics, filled compounds, rubber, sheet & film from 0 to 5 mm thick. The ribbon steel (steel-rule) die uses a precision-bent hardened rule in a laser-cut plywood base with a foam ejection pad, an economical choice for rubber, elastomers, TPE, foams, soft plastics & films up to 3 mm. Both cut the same ASTM D624 Die C profile.
ASTM D624 Die C specimen dimensions
The die is cut to the nominal profile in ASTM D624: overall length 102 ± 0.5 mm, width of tabs 19 mm, notch angle 90°, ligament (apex to back edge) 12.7 mm and recommended thickness 2.3–3.0 mm. Always check your current edition of the standard for tolerances and the test procedure.
Die C compared with other ASTM D624 dies
Die C: 102 mm overall length (this die)
Where it is used
Typical uses for ASTM D624 Die C specimens include gaskets & seals, hoses, molded rubber goods and TPE sheet & film.
Cutting specimens with the die
Put the die on an arbor press or a pneumatic press, set your sheet on a nylon cutting plate and press through in one stroke; the ejector pushes the specimen out ready to test. No press yet? An adapter lets the die run on your universal testing machine. Send us a sample of your material and we will make test cuts free of charge, so you can confirm the edge quality before you order. Hardened dies can be re-sharpened with our die sharpening tool.
ASTM D624 Die C Cutting Die Specifications
STANDARD
ASTM D624 Die C
SPECIMEN
Unnicked 90° Angle Tear Specimen
SPECIMEN TYPE
Tear specimen
OVERALL LENGTH
102 ± 0.5 mm
WIDTH OF TABS
19 mm
NOTCH ANGLE
90°
LIGAMENT (APEX TO BACK EDGE)
12.7 mm
RECOMMENDED THICKNESS
2.3–3.0 mm
HARDENED STEEL DIE
One-piece machined steel, 0–5 mm material, integral ejector plate
RIBBON STEEL DIE
Steel rule in plywood base, 0–3 mm material, foam ejection pad
PRESS COMPATIBILITY
Manual, pneumatic & hydraulic sample-cutting presses
PART NUMBERS
(hardened) · UGC-CDR-D624-C (ribbon)
Models & Options
Hardened Steel Cutting Die — One-piece machined, hardened and precision-finished; rigid & semi-rigid plastics, filled compounds, rubber, sheet & film; 0–5 mm; integral ejector plate; re-sharpenable
Ribbon Steel Cutting Die — Precision-bent hardened steel rule in a laser-cut plywood base with closed-cell foam ejection pad; rubber, elastomers, TPE, foams, soft plastics & films; 0–3 mm; economical, fast turnaround (UGC-CDR-D624-C)
Press mounting — Matched to your press make and model, or an adapter for your universal testing machine (Specify at order)
Custom features — Custom profiles, multi-cavity dies and nick/notch features on request (Custom)
What's Included
ASTM D624 Die C cutting die in your chosen style (hardened or ribbon steel)
Specimen ejection: integral ejector plate (hardened) or foam ejection pad (ribbon)
Mounting to suit your press — tell us the make and model
Data sheet with the nominal profile dimensions
Supported Test Standards
ASTM D624 — Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
Compatible Grips & Fixtures
Arbor press — Benchtop press for cutting unnicked 90° Angle Tear Specimen specimens with this die
Sample die press — Specimen-preparation presses and tools
Pneumatic grips — Constant clamping force for rubber dumbbells and tear specimens
Roller grips — Self-tightening eccentric roller grips for elastomers
Die sharpening tool — Restore the cutting edge of a hardened steel die
Elastomer testing — Grips, fixtures and dies for rubber and TPE testing
“Customer quote”
Related Equipment
ASTM D624 Die B Cutting Die
Tab-End Crescent Tear Specimen (Nicked) · overall length 110 mm, width (tab ends) 25 mm
JIS K6252-1 Fig. 2 Cutting Die
Angle Tear Specimen · overall length 100 mm, width 19 mm
NBR 15557 Fig. 4 Cutting Die
Angle Tear Specimen · overall length 100 mm, width 19 mm
DIN 53515 Cutting Die
Graves Angle Tear Specimen with Incision · overall length 102 mm, width 19 mm
ASTM D624 Die C Cutting Die FAQ
What is the ASTM D624 test used for?
ASTM D624 measures the tear resistance of rubber and TPE sheet using several die geometries. Die C is the unnicked 90° angle specimen where the tear initiates at the inner vertex of the right angle.
What are the ASTM D624 Die C specimen dimensions?
The die cuts the nominal ASTM D624 profile: overall length 102 ± 0.5 mm, width of tabs 19 mm, notch angle 90°, ligament (apex to back edge) 12.7 mm and recommended thickness 2.3–3.0 mm. These values come from the standard; check your current edition for tolerances.
Hardened steel or ribbon steel: which ASTM D624 Die C die should I choose?
For most rubber and TPE sheet around 2 mm thick, the ribbon steel die is the economical choice. Choose hardened steel for filled or harder compounds, sheet up to 5 mm, or high daily volumes, since it lasts longer and can be re-sharpened.
Which press do I need for the ASTM D624 Die C die?
The die fits manual, pneumatic and hydraulic sample-cutting presses. On our arbor press it mounts with a lateral screw, and an adapter lets it run on a universal testing machine. Tell us your press make and model and we will match the mounting.
Which other ASTM D624 dies do you make?
We also make cutting dies for Die B, each in hardened and ribbon steel.
Can you make test cuts on my material?
Yes. Send us a sample of your sheet and we will make test cuts free of charge, so you can see the edge quality and confirm the right die style before you order.
Can you make a custom or multi-cavity ASTM D624 Die C die?
Yes. We make custom profiles, multi-cavity dies and nick or notch features on request. Send the drawing or standard, your material and thickness, and your press model.