Electrode Tube Price | Supplier & Manufacturer

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Shanghai Metal Corporation is a leading Electrode Tube manufacturer and supplier.

Electrode Tube is a tubular conductive component made from copper, copper alloy or other conductive metals. It is widely used in electric discharge machining, welding equipment, electrolysis systems and metallurgical testing equipment. The tube transfers electric current steadily during operation and maintains stable conductivity under continuous working conditions. It can be processed into different outer diameters, wall thicknesses and lengths according to customer drawings. This product solves the problem of current transmission in high‑temperature and high‑current working environments. It supports precise machining and stable power delivery to avoid current fluctuation that may affect processing accuracy. We supply standard sizes and custom machined pieces for industrial equipment assembly and maintenance.

If you want to know more about our copper products or Electrode Tube or Copper & Brass Tube/Tube Coil price please feel free to contact us, we will reply you within 24 hours.

1. Material composition: C11000 pure copper consists of ≥99.90% copper with trace oxygen content; C2800 brass is composed of 60% copper and 40% zinc.

2. Product structure: Electrode tube adopts hollow tubular structure. The solid outer wall forms the conductive body, and the hollow inner hole runs through the whole tube body.

3. Function of structural parts: The outer wall conducts electric current to the machining position. The inner hole serves as the passage for dielectric fluid to pass through during EDM processing.

4. Difference between different inner hole structures: Single‑hole type has one central through hole. Double‑hole and multi‑hole types contain multiple independent inner channels arranged inside the tube wall.

5. Structural feature of single‑hole electrode tube: The single central hole has simple processing and low production cost, with one channel for fluid delivery.

6. Structural feature of double‑hole and multi‑hole electrode tube: Multiple separate channels enable distributed fluid flow, which brings more stable flushing effect during processing.

1. Stable Electrical Conductivity Maintains steady current transmission during EDM machining, avoids sudden current fluctuation, and helps customers keep consistent machining accuracy.

2. Controllable Inner Hole Structure Supports single‑hole, double‑hole and multi‑hole internal channel designs, adapts to different flushing requirements, and improves the stability of dielectric fluid delivery.

3. Uniform Tube Wall Thickness Guarantees consistent material distribution across the whole tube length, reduces uneven wear during discharge processing, and extends the usable service life of the electrode tube.

4. Fine Machinability The copper and brass raw materials can be cut and finished to customized lengths, helps customers match different EDM equipment and reduce secondary processing workload.

5. Consistent Dimensional Tolerance Strictly controls outer diameter and straightness within specified ranges, ensures smooth installation into EDM tool holders and lowers assembly adjustment time.

1. Electrical Discharge Machining of Precision Small Holes It serves as the conductive tool electrode for micro‑hole EDM, transferring current to remove workpiece material, and meets the fabrication demand of tiny holes on metal parts.

2. Mold Surface Fine Machining Used for finish EDM on mold cavities and complex contours, delivers stable discharge to get smooth workpiece surface and reduce subsequent polishing workload.

3. Aerospace Component Micro Machining Performs micro‑hole processing on high‑strength alloy parts for aerospace assemblies, supports high‑precision hole making under strict tolerance requirements.

4. Medical Device Part Fabrication Applied to manufacture micro pores on medical metal components, guarantees consistent discharge performance to satisfy the strict precision requirement of medical products.

5. Automotive Fuel Injection Component Machining Conducts small hole EDM for fuel injector parts, helps form uniform orifices and stabilizes fuel injection performance of finished components.

Production Process

1. Raw material inspection

2. Extrusion & drawing

3. Straightening

4. Cutting to length

5. Deburring

6. Dimensional inspection

7. Surface cleaning

8. Final inspection & packaging

Specification	Parameter Range
Outer Diameter	0.15 mm ~ 6.0 mm
Inner Diameter	0.03 mm ~ 3.5 mm
Tube Wall Thickness	0.05 mm ~ 1.2 mm
Length	200 mm / 400 mm
Straightness	≤0.15 mm/m
Outer Diameter Tolerance	±0.003 mm ~ ±0.01 mm
Inner Diameter Tolerance	±0.005 mm ~ ±0.015 mm
Material Purity	Cu ≥99.90% ~ 99.99%
Density	8.89 g/cm³
Tensile Strength	220 ~ 310 MPa
Elongation	5% ~ 18%
Electrical Conductivity	≥97% IACS ~ ≥101% IACS
Surface Roughness (Ra)	Ra 0.2 μm ~ Ra 1.6 μm
Hole Type	Single hole / Multi-hole / Eccentric hole
Surface Treatment	Plain copper / Clean degreased
Working Temperature	-20℃ ~ 350℃
Max Recommended Discharge Current	0.5A ~ 30A

Standard Packaging

Each electrode tube is wrapped with protective acid-free paper to avoid surface scratches. Multiple tubes are bundled and fixed with plastic bands, then placed into rigid export cartons lined with foam padding. Cartons are stacked on fumigated wooden pallets and secured with stretch film and strapping bands for overseas shipment.

Shipping

We support FCL and LCL sea freight, air freight and international express delivery according to order quantity and destination. Available trade terms include EXW, FOB, CIF. Other terms may be available upon request. Shipping costs are calculated based on cargo volume, gross weight, destination and selected transportation method.

Lead Time

Samples: 3–7 working days

Standard orders: 15–25 working days

Customized orders: 25–40 working days

Q1: What information do you need for a custom quotation of electrode tubes?

A: Please provide outer diameter, inner hole type, required length, material grade, order quantity and destination port for quotation.

Q2: Can electrode tubes be cut to custom lengths?

A: Yes. We can cut electrode tubes to your specified length. Length tolerance will be confirmed before production.

Q3: What surface finish options are available for EDM electrode tubes?

A: Standard surface is drawn finish. Special surface treatment can be arranged upon request for specific EDM requirements.

Q4: What factors should I consider when selecting EDM electrode tubes?

A: You need to consider workpiece material, required hole precision, flushing demand and discharge current parameters for your EDM machine.

Q5: What is the difference between C11000 copper electrode tube and C2800 brass electrode tube?

A: C11000 copper has higher conductivity for stable discharge. C2800 brass has better wear resistance and lower material cost for general machining.

Q6: How do you control quality before shipment?

A: Each batch will be inspected for dimension, straightness and surface condition. Inspection records can be provided if requested.

Electrode Tube

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