Copper, brass & bronze · BS EN 13601

Copper C101 (ETP) — Machining & Properties

Typical properties, what Copper C101 (ETP) 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.

8.96 g/cm³
Density (typical)
220 MPa
Tensile strength
HB 40
Hardness
Good
Machinability
17 µm/m·°C
Thermal expansion
117 GPa
Elastic modulus
±0.010mm
Achievable tolerance

Machining Copper C101 (ETP)

Machinability is rated good — a well-behaved material to machine with correctly chosen tooling and parameters. Brass CZ121 and CZ131 are among the most economical materials to machine — their outstanding chip-breaking behaviour allows high speeds and excellent surface finish. Beryllium copper must be machined with appropriate respiratory controls in place.

Our standard achievable tolerance on Copper C101 (ETP) is ±0.010mm under normal conditions, with tighter tolerances on critical features agreed at quotation. Standard finishes: As machined, tin plate. Full material traceability with MTR and CoC documentation on every order.

Typical applications

Electrical contacts, heat sink plates, RF shielding, busbars.

Use Copper C101 (ETP) in our free tools

Other copper, brass & bronze grades we machine: Copper C110 · Brass CZ121 (CW614N) · Brass CZ131 (CW617N) · Phosphor Bronze PB102 (CW451K)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

Copper C101 (ETP) — FAQ

What is the density of Copper C101 (ETP)?

8.96 g/cm³ (typical). That is 8960 kg/m³ — our metal weight calculator uses exactly this figure for Copper C101 (ETP).

What is the tensile strength of Copper C101 (ETP)?

Typically 220 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 Copper C101 (ETP) easy to machine?

Its machinability is rated good — a well-behaved material to machine with correctly chosen tooling and parameters.

What is Copper C101 (ETP) used for?

Typical applications: Electrical contacts, heat sink plates, RF shielding, busbars.

What tolerance can be held when machining Copper C101 (ETP)?

Our standard achievable tolerance on Copper C101 (ETP) 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 Copper C101 (ETP)?

Yes — we machine Copper C101 (ETP) 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: As machined, tin plate.

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