C11500 Copper Strip CuAg0.1
C11500 (CuAg0.1) is a high-conductivity copper alloy with 0.1% silver, supplied as bar, rod, wire, strip, or tube. It is widely used in electrical and power engineering applications, especially where heat resistance and conductivity are critical.
Mechanical Properties
| Item | Tensile Strength (Rm / MPa) | Elongation A50mm (%) | Yield Strength (Rp0.2 / MPa) | Vickers Hardness (HV5) | Conductivity (% IACS) | |
|---|---|---|---|---|---|---|
| Value | 304 | 24.0 | 285 | 97.3 | 98.5 |
Chemical Composition (%)
| Element | Cu | Ag | Bi | As | Fe | Ni | P |
|---|---|---|---|---|---|---|---|
| Measured | 99.899 | 0.087 | ≤0.001 | ≤0.001 | ≤0.001 | ≤0.001 | 0.0014 |
C11500 (CuAg0.1) – Product Size Range
Rod / Bar (Round)
Standard: ASTM B187 / B224
Size: Ø 1–300 mm
Length: 1–6 m
Square / Hex Bar
Standard: ASTM B187 / B224
Size: Across Flats (AF) 6–150 mm
Length: 2–6 m
Sheet / Strip
Standard: ASTM B152 / B272
Thickness: 0.1–6 mm
Width: 20–1500 mm
Length: 0.5–3 m
Coil: Available
Plate
Standard: ASTM B152 / B272
Thickness: 6–200 mm (up to 280 mm)
Width: ≤ 2000 mm
Length: 3–6 m
Tube
Standard: ASTM B75 / B251
Outer Diameter (OD): 6–200 mm (up to 400 mm)
Wall Thickness (WT): 0.5–25 mm
Length: 2–6 m
Coil Tube: 30–100 m
· Electrical strip/foil = very thin (0.1–0.5 mm).
· Bus bars = flat bar/plate, usually 10–50 mm thick × 50–200 mm wide × 2–6 m long.
· Commutator rods = round bars 10–100 mm Ø × 2–4 m.
· Contact wires = drawn rod/wire, Ø 8–25 mm, coil wound.
Advantages of C11500 Copper (CuAg0.1)
1. Higher Softening Resistance
Pure copper (C11000) loses strength at high temperatures (200–300 °C).
Adding 0.08–0.12% Ag significantly raises the softening and recrystallization temperature.
This means C11500 keeps its strength, hardness, and springiness longer in hot service.
Advantage: Better thermal stability in motors, generators, transformers.
2. Excellent Electrical Conductivity
Electrical conductivity is 98–100% IACS (almost same as pure copper).
So you don’t lose conductivity while gaining heat resistance.
Advantage: Used in bus bars, contact wires, commutators where both high current + heat exist.
3. High Wear Resistance
Silver improves hardness and wear resistance.
Contact surfaces (sliding, arcing) are less prone to erosion.
Advantage: Longer service life in switchgear contacts, commutators, railway catenary wires.
4. Good Mechanical Strength
Tensile strength is higher than pure copper, especially after cold work (200–400 MPa).
Withstands mechanical stress and bending without cracking.
Advantage: Suitable for bars, rods, and plates in heavy-duty electrical equipment.
5. Resistance to Annealing in Welding
C11500 is more resistant to annealing softening during soldering, brazing, or welding.
Advantage: Good for electrical connectors and components exposed to fabrication heat.
Various C11500 Copper Forms' Applications
Sheet / Strip (0.1–3 mm)
Mainly used for contacts, terminals, transformer strips, and springs.
Its advantages include excellent electrical conductivity and strong anti-softening performance after soldering.
Plate (≥6 mm)
Applied in bus plates, commutators, and welding electrodes for high-load conditions.
Compared with pure copper, C11500 offers higher strength and better heat resistance.
Rod / Bar (Ø 3–300 mm)
Common applications include contact wires, bus bars, commutators, and switchgear components.
This material supports high current transmission and provides good wear resistance.
Tube (OD 6–200 mm)
Used in heat exchangers, generator cooling systems, and welding arms.
Its advantages are high electrical conductivity and hot hardness under load
