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ASTM D1430 Cutting Die – Double V-Notched ZST Strip
Double V-Notched ZST Strip · Zero-strength time (ZST) specimen — built to ASTM D1430. Hardened steel or economical ribbon steel.
Brand: Universal Grip | Model: UGC-CDH-D1430 / UGC-CDR-D1430 | ● Made to order
Cuts the ASTM D1430 double V-Notched ZST Strip profile: 50 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 D1430
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Precision cutting die for ASTM D1430 double V-Notched ZST Strip specimens
This Universal Grip die cuts the double V-Notched ZST Strip (zero-strength time (ZST) specimen) defined in ASTM D1430: Standard Classification System for Polychlorotrifluoroethylene (PCTFE) Plastics. ASTM D1430 classifies PCTFE molding and extrusion materials by properties including zero-strength time, a measure related to molecular weight. The small double-V-notched strip is held at elevated temperature under a light load and the time to break at the notches is recorded.
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 D1430 profile.
ASTM D1430 specimen dimensions
The die is cut to the nominal profile in ASTM D1430: overall length 50 mm, width 4.8 mm, thickness 1.6 mm, notch form Two opposed 90° V-notches at mid-length and notch depth (each side) approx. 1 mm. Always check your current edition of the standard for tolerances and the test procedure.
Where it is used
Typical uses for ASTM D1430 specimens include cryogenic seals & valve seats, pharmaceutical blister film, chemical-resistant components and aerospace fluoropolymer parts.
Cutting specimens with the die
Most labs run it on a manual arbor press, but it also fits pneumatic and hydraulic sample-cutting presses, and with an adapter it can cut specimens directly on a universal testing machine. Tell us your press make and model and we will match the mounting. 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 D1430 Cutting Die Specifications
STANDARD
ASTM D1430
SPECIMEN
Double V-Notched ZST Strip
SPECIMEN TYPE
Zero-strength time (ZST) specimen
OVERALL LENGTH
50 mm
WIDTH
4.8 mm
THICKNESS
1.6 mm
NOTCH FORM
Two opposed 90° V-notches at mid-length
NOTCH DEPTH (EACH SIDE)
approx. 1 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
UGC-CDH-D1430 (hardened) · UGC-CDR-D1430 (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 (UGC-CDH-D1430)
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-D1430)
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 D1430 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 D1430 — Standard Classification System for Polychlorotrifluoroethylene (PCTFE) Plastics
Compatible Grips & Fixtures
Arbor press — Benchtop press for cutting double V-Notched ZST Strip specimens with this die
Sample die press — Specimen-preparation presses and tools
Die sharpening tool — Restore the cutting edge of a hardened steel die
Plastics testing — Grips and fixtures for plastic film, sheet and molded parts
“Customer quote”
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ASTM D1430 Cutting Die FAQ
What is the ASTM D1430 test used for?
ASTM D1430 classifies PCTFE molding and extrusion materials by properties including zero-strength time, a measure related to molecular weight. The small double-V-notched strip is held at elevated temperature under a light load and the time to break at the notches is recorded.
What are the ASTM D1430 specimen dimensions?
The die cuts the nominal ASTM D1430 profile: overall length 50 mm, width 4.8 mm, thickness 1.6 mm, notch form Two opposed 90° V-notches at mid-length and notch depth (each side) approx. 1 mm. These values come from the standard; check your current edition for tolerances.
Hardened steel or ribbon steel: which ASTM D1430 die should I choose?
For rigid and semi-rigid plastics, filled compounds and sheet up to 5 mm, choose the hardened steel die. The ribbon steel die is the economical option for soft plastics and films up to 3 mm.
Which press do I need for the ASTM D1430 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.
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 D1430 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.