EN24 (817M40) — Machining & Properties
Typical properties, what EN24 (817M40) is like on a machine tool, what it gets used for, and the tolerance and finishes we hold on it — from a shop that actually machines it, not a datasheet aggregator. Every figure here drives our own calculators.
Machining EN24 (817M40)
Machinability is rated good — a well-behaved material to machine with correctly chosen tooling and parameters. Tool and die steels (H13, D2, M2) are typically rough-machined in the annealed condition, hardened and tempered to working hardness, then finish ground or EDM’d to final dimension. Engaging us early in your design allows the sequence to be optimised for minimum distortion.
Our standard achievable tolerance on EN24 (817M40) is ±0.010mm under normal conditions, with tighter tolerances on critical features agreed at quotation. Standard finishes: Black oxide, phosphate, zinc-nickel. Full material traceability with MTR and CoC documentation on every order.
Typical applications
High-tensile bolts, heavy shafts, tool holders, oil & gas.
Use EN24 (817M40) in our free tools
Other carbon & alloy steel grades we machine: EN3 (070M20) · EN8 (080M40) · EN19 (709M40) · H13 (Hot Work) — all 50 grades.
EN24 (817M40) — FAQ
What is the density of EN24 (817M40)?
7.85 g/cm³ (typical). That is 7850 kg/m³ — our metal weight calculator uses exactly this figure for EN24 (817M40).
What is the tensile strength of EN24 (817M40)?
Typically 1000 MPa. Treat it as a typical value, not a specification — the Material Test Report supplied with your order states the actual certified figures for the batch.
Is EN24 (817M40) easy to machine?
Its machinability is rated good — a well-behaved material to machine with correctly chosen tooling and parameters.
What is EN24 (817M40) used for?
Typical applications: High-tensile bolts, heavy shafts, tool holders, oil & gas.
What tolerance can be held when machining EN24 (817M40)?
Our standard achievable tolerance on EN24 (817M40) is ±0.010mm under normal conditions (ISO 2768-f general tolerancing). Tighter tolerances on critical features can be agreed at quotation for specific geometries.
Can Dalloway machine EN24 (817M40)?
Yes — we machine EN24 (817M40) in-house on 3, 4 and 5-axis milling and CNC turning, from single prototypes to production, with MTR and CoC documentation standard. Typical finishes: Black oxide, phosphate, zinc-nickel.
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