10N Series WP-17/18/26 TIG torches Alumina nozzle (10/Pack)

Product parameters

Description

Alumina Ceramic
Main composition: 95% Al2O3 (alumina)
Material characteristic density: 3.6g/cm3, water absorption: 0%, sintering temperature: 1700 ℃
Physical property: hardness 1500hv
Mohs hardness: 8.8mohs scale
Fire resistance: 2000 ℃

Main composition: 95% Al2O3 (alumina)
Material characteristic density: 3.6g/cm3, water absorption: 0%, sintering temperature: 1700 ℃
Physical property: hardness 1500hv
Mohs hardness: 8.8mohs scale
Fire resistance: 2000 ℃
Flexural strength: 3000kg / cm2
Compressive strength: 25000kg / cm2
Fracture toughness: 3 -- 4map. M
Thermal characteristics: maximum operating temperature 1700 ℃
Expansion coefficient: 8 * 10-6 / ℃ (0-1000 ℃)
Heat resistant impact force: 220t (℃)
Thermal conductivity: 25-14w / M.R (25-300 ℃)
Electrical characteristics: volume resistivity > 1014 -- > 1012 > Ω cm(20--300℃)
Insulation strength: 18kV / mm
Dielectric constant: 9.5 100MHz (E)

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