High Purity Graphite Carbon Rod Electrode Ø18mm × 250mm (Ø0.71” × 9.84”) 1pcs

Professional-grade carbon electrodes SK-18 manufactured from high-purity amorphous carbon / graphite with a carbon content of ≥99.9%. The material provides excellent electrical conductivity, high thermal stability, and long service life under high current loads.

These electrodes are designed for demanding applications such as air carbon arc cutting (CAC-A), welding, metal gouging, removal of weld defects, and processing of non-ferrous metals. The SK-18 grade ensures stable arc performance, minimal spatter, and consistent material behavior at high temperatures.

Material & Composition:

• Grade: SK-18

• Base material: High-purity amorphous carbon / graphite

• Carbon content: ≥99.9% C

• Low electrical resistance

• Chemically stable, corrosion- and oxidation-resistant

Key advantages:

• Stable and controllable arc at high currents

• Excellent resistance to high temperature and thermal shock

• Low thermal expansion – dimensional stability during heating

• Smooth surface for consistent contact

• Long service life in industrial conditions

Typical applications:

• Air carbon arc cutting and gouging (CAC-A)

• Welding and removal of weld seams and casting defects

• Cutting rivets and metal removal

• Welding and processing of copper and non-ferrous metals

• Use in crucibles for melting low-melting metals

• Workshop, industrial and laboratory applications

Working current: up to 1000 A (depending on equipment)
Tip angle: 60–70° (steel), 20–40° (non-ferrous metals)