Carbon & alloy steel · BS EN ISO 4957

D2 (Cold Work) — Machining & Properties

Typical properties, what D2 (Cold Work) 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.

7.7 g/cm³
Density (typical)
1600 MPa
Tensile strength
HRC 60–62 (htd)
Hardness
Difficult
Machinability
11 µm/m·°C
Thermal expansion
200 GPa
Elastic modulus
±0.020mm
Achievable tolerance

Machining D2 (Cold Work)

Machinability is rated difficult — a genuinely demanding material — rigid setups, premium tooling and conservative parameters, with cycle time and tool wear to match. 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 D2 (Cold Work) is ±0.020mm under normal conditions, with tighter tolerances on critical features agreed at quotation. Standard finishes: PVD, nitriding. Full material traceability with MTR and CoC documentation on every order.

Typical applications

Punches, blanking dies, wear plates, press tooling.

Use D2 (Cold Work) in our free tools

Other carbon & alloy steel grades we machine: EN3 (070M20) · EN8 (080M40) · EN19 (709M40) · EN24 (817M40)all 50 grades.

Reference tool. Values are typical for the grade and condition stated and vary by supplier, temper and batch — they are reference data, not a specification. The Material Test Report supplied with your order is the governing document for the material actually used. Figures are provided in good faith for early design guidance and are not a substitute for the published standard or your own engineering judgement. Always verify against the controlled standard and your drawing before manufacture. If a feature is critical, tell us at quotation stage and we'll confirm it explicitly.
Questions engineers actually ask

D2 (Cold Work) — FAQ

What is the density of D2 (Cold Work)?

7.7 g/cm³ (typical). That is 7700 kg/m³ — our metal weight calculator uses exactly this figure for D2 (Cold Work).

What is the tensile strength of D2 (Cold Work)?

Typically 1600 MPa in the heat-treated condition stated. 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 D2 (Cold Work) easy to machine?

Its machinability is rated difficult — a genuinely demanding material — rigid setups, premium tooling and conservative parameters, with cycle time and tool wear to match.

What is D2 (Cold Work) used for?

Typical applications: Punches, blanking dies, wear plates, press tooling.

What tolerance can be held when machining D2 (Cold Work)?

Our standard achievable tolerance on D2 (Cold Work) 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 D2 (Cold Work)?

Yes — we machine D2 (Cold Work) 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: PVD, nitriding.

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