EN 10328: Depth of hardening after surface heating (conventional method)

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EN 10328 is the European test method for the conventional (effective) depth of hardening of iron and steel after surface hardening. To match this to your program, talk with our team.

What EN 10328 Covers

It determines the case depth produced by surface heat treatments such as induction or flame hardening, based on a hardness limit.

How the Test Is Run

A hardness traverse is made from the surface inward on a prepared cross-section, and the depth to a defined hardness value gives the effective case depth.

Why It Matters

Case depth governs the wear and fatigue performance of hardened surfaces; a hardness tester and prepared metallographic sections are essential.

Reading the Designation

Cited as EN 10328 with its edition year. Confirm the edition and specimen or fixture requirements before finalizing setup. To configure a testing setup, request a quote.

Related Standards

EN ISO 15630-1 and ISO 16808 cover other metallic-product test methods.

Request a Quote

Setting up case depth testing to EN 10328? Request a quote and our team will help you build a system matched to your part geometry and hardness scale.


TensileMill CNC products for EN 10328

Our specimen-preparation systems and testing equipment compatible with EN 10328:


Build your EN 10328 workflow with TensileMill CNC

From specimen preparation to the test itself, TensileMill CNC supports the full EN 10328 testing chain. For this work we supply universal testing machines, specimen-preparation systems, grips, and fixtures. Request a quote and our team will help you configure a system for EN 10328.