PLASMA Coated EDM Wire, Gamma EDM Wire 0.10mm, 0.15mm, 0.20mm, 0.25mm, 0.30mm EDM wire with Multi CuZn coating for sale


Spec: Standard model

Core Material: Brass

Type of coating: Multi CuZn (Gamma -Phase)

Applicable Machines: Standard gamma edm wire  suitable some machines

(For more information please browse our details below)

PLASMA Coated EDM Wire (Gamma Wire) Detail

PLASMA Coated EDM Wire (Gamma EDM wire) is a type of wire that is used in electrical discharge machining (EDM) processes. It is made of a high-quality brass alloy. Gamma wires differ from other Zn-coated EDM wire in that specially treated with gamma radiation to improve its electrical properties and overall performance.

  1. Gamma EDM wire is available in a range of diameters, typically from 0.1 mm to 0.3 mm.
  2. The wire is coated with a layer of high-quality zinc, which provides improved electrical conductivity and resistance to wear and corrosion.
  3. Gamma EDM wire is suitable for use in both roughing and finishing applications.
Gamma Wire

Technical Information

Usually gamma EDM wire has higher product performance. Higher tensile strength and better wear resistance than standard brass EDM wire.

  • Material: Made of a high-quality brass alloy that is treated with gamma radiation to improve its electrical conductivity and performance.
  • Diameter: Depends on the specific application in your project. Wire’s diameter range from 0.1 mm to 0.3 mm we can offer.
  • Tensile strength: The tensile strength of Gamma EDM wire is typically around 980-1020 N/mm², our Gamma EDM wire tensile strength is 980N/mm², suitable most needs .
  • Electrical conductivity: Gamma EDM wire has excellent electrical conductivity due to the gamma radiation treatment, which results in more efficient and precise machining. And EDM wire we provide has pass the inspection and conductivity is 19%IACS.

Technical informations sheet of our product are as follows:

Core Material CuZn37
Coating Multi-coating
Conductivity 19%IACS
Tensile Strength 980N/m²
Threading Auto Threading
gamma wire

PLASMA Coated EDM Wire (Gamma Wire) Size & Spec

The wire is available in various diameters we can offer, ranging from 0.1mm to 0.3mm, with a tolerance of +/- 0.001mm. The wire is also available in spools of different lengths, typically ranging from 3 kg to 25 kg.


φ[mm] 0.10 0.15 0.20 0.25 0.30

The type with “•”in column are commonly used models, if you need other models, please contact us for custom.

PLASMA Coated EDM Wire (Gamma Wire) Spool Size


Spool Type Material d1[mm] d2[mm] d3 [mm] L1[mm] L2[mm] Wire Weight
Weight Tolerance
P3 ABS(PS) 130 80 20 110 90 3 0.05
P5 ABS(PS) 160 90 20 114 90 5 0.05
P10 ABS(PS) 200 110 25 135 110 10 0.05
P15 ABS(PS) 250 120 34 140 110 20 0.05
DIN125 ABS(PS) 125 80 20 125 100 3.5 0.05
DIN160 ABS(PS) 160 100 23 160 128 8 0.05
DIN200 ABS(PS) 200 125 22 200 160 16 0.05
DIN250 ABS(PS) 250 160 23 200 160 25 0.05

Couldn’t find the spec you need in this spool spec sheet? Please contact us for a special custom EDM wire solution.

Advantage of PLASMA Coated EDM Wire (Gamma wire)

Our Quality Assurance

The testing process begins with the raw materials, which are meticulously inspected to ensure they meet our stringent quality standards. Once these materials are processed into our Brass, Galvanized, and Gamma EDM wires, they undergo a series of rigorous tests.

Coating Uniformity Test

For our coated wires, we use a Coating Thickness Gauge to check the uniformity and thickness of the coating, further ensuring the wire’s performance and longevity.

Surface Roughness Test

Using a Surface Roughness Tester, we examine the minute irregularities in the wire surface. This ensures the wire’s surface quality, which can significantly impact the accuracy of EDM processes.

Tensile Strength Test

Using a Tensile Testing Machine, we ensure our wires can withstand the rigorous demands of EDM processes, confirming their structural integrity under tension.

Diameter Consistency Test

A Micrometer or Laser Micrometer measures the diameter of our wires along their entire length. This guarantees that our wires deliver consistent performance in your manufacturing processes.

Straightness Test

To ensure the straightness of our wires, we use an Optical Straightness Checker or Straightness Measuring Device. These tools allow us to guarantee the precision required for accurate and clean cuts.

Composition Test

We utilize advanced equipment like XRF Spectrometers and EDS systems to verify the elemental composition of our wires. This ensures they meet exact material specifications for optimal performance in various EDM processes.

Spooling Test

Proper spooling of our wires is crucial to avoid wire breakage and machine downtime. We ensure this through visual inspection and, in advanced setups, automated systems with cameras and image processing software to identify any spooling issues.

Powder Drop Test

To ensure the stability and integrity of our wire’s coating during EDM processes, we conduct a Powder Drop or Dusting Test. This test measures the amount of residue or dust produced during operation, which if excessive, could affect the EDM process’s effectiveness and cleanliness.

Conductivity Test

The electrical conductivity of our wires is verified using a Conductivity Meter or a Four-Point-Probe Meter, ensuring they meet the highest standards required for EDM processes.

Industry Application