EN3 (070M20) — Machining & Properties
Typical properties, what EN3 (070M20) 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 EN3 (070M20)
Machinability is rated excellent — one of the friendlier materials on a machine tool — expect efficient cycle times and good surface finish at sensible cost. 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 EN3 (070M20) is ±0.020mm under normal conditions, with tighter tolerances on critical features agreed at quotation. Standard finishes: Zinc plate, powder coat, black oxide. Full material traceability with MTR and CoC documentation on every order.
Typical applications
General low-stress applications, studs, non-critical brackets.
Use EN3 (070M20) in our free tools
Other carbon & alloy steel grades we machine: EN8 (080M40) · EN19 (709M40) · EN24 (817M40) · H13 (Hot Work) — all 50 grades.
EN3 (070M20) — FAQ
What is the density of EN3 (070M20)?
7.85 g/cm³ (typical). That is 7850 kg/m³ — our metal weight calculator uses exactly this figure for EN3 (070M20).
What is the tensile strength of EN3 (070M20)?
Typically 430 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 EN3 (070M20) easy to machine?
Its machinability is rated excellent — one of the friendlier materials on a machine tool — expect efficient cycle times and good surface finish at sensible cost.
What is EN3 (070M20) used for?
Typical applications: General low-stress applications, studs, non-critical brackets.
What tolerance can be held when machining EN3 (070M20)?
Our standard achievable tolerance on EN3 (070M20) is ±0.020mm under normal conditions (ISO 2768-f general tolerancing). Tighter tolerances on critical features can be agreed at quotation for specific geometries.
Can Dalloway machine EN3 (070M20)?
Yes — we machine EN3 (070M20) 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: Zinc plate, powder coat, black oxide.
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