Precision eroding blocks for toolmaking
Scale-free surface and highest material quality for your erosion processes.
Our precision eroding blocks are reliable semi-finished products for demanding toolmaking. Manufactured from proven materials, we offer blocks in soft-annealed or hardened versions with a scale-free end face. The quality of the blocks is crucial for precise eroding results. Order your custom-made blocks now to get the optimal basis for your molding tools and benefit from our fast delivery service.

PRÄZI erosion blocks
| Features | Scale-free end face |
| Execution | soft annealed, approx. 255 HB Hardened, 61 +/- 2 HRC Fiber direction perpendicular to the contact surface,special dimensionsavailable on request |
| Tolerances | Thickness +0.5 mm, square +2 mm, all details can be found in ourdata sheet |
| Applications | High-performance cutting tools, forming tools, punching tools |
| certificates | ![]() |
material selection
We deliver over 10,000 dimensions in around 20 material grades directly from stock.
High-alloy steel
Cold work steel 1.2379 | AISI D2
PRÄZI Flachstahl® 1.2379 impresses with its toughness, wear resistance, low distortion and nitridability. Perfect for cutting and punching tools, shearing knives, trimming dies, cutting rollers and breakage-sensitive parts.
Perfect surfaces
& tightest tolerances
Precise tolerances for direct processing
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Efficient further processing
Maximum planning reliability
No milling or grinding required
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Faster turnaround times
Limitless possibilities
Custom dimensions
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Around 20 material grades
Technological possibilities & consulting
Choosing the right raw material affects every stage of your production process.
Precise, low-stress PRÄZI flat steel reduces machining effort, preserves your tools, and increases repeatability in series production. This allows you to sustainably improve the quality, stability, and service life of your end products.
As an experienced partner, we support you with technological expertise and sound advice—for greater efficiency and reliability in your value chain.
Your guide to standard dimensions

Your consultation for individual needs

Your consultation for individual needs

FAQ
Here you will find answers to frequently asked questions. For detailed technical data or
price information, please visit our online shop directly.
What special properties do PRÄZI erosion blocks have?
Our erosion blocks are characterized by a scale-free front side and a grain running perpendicular to the contact surface. The vertical grain contributes to maximum service life and crack resistance.
In which material are the blocks available?
The erosion blocks are available in cold work steel 1.2379 as standard.
What degrees of hardness are the eroding blocks available in?
We offer the erosion blocks in two versions: soft annealed approx. 255 HB) and hardened (61 +/- 2 HRC).
What applications are ideal for these blocks?
Their combination of toughness and cutting ability makes them ideal for high-precision applications in the manufacture of punches, dies, and molded parts, especially in punching and forming tools.
What tolerances apply to the erosion blocks?
The blocks are supplied with high precision, adhering to tolerances for dimensional accuracy (LxWxD), flatness, angularity, and parallelism.

