HP TU 21 - Is a round rolled phenolic paper tube. Is used for mechanical and electrical insulating parts in low voltage applications. It is distinguished by high mechanical strength and good electrical characteristics.
Availability: Inner diameter: 6.2mm - 9.5mm, 10mm - 19.5mm, 20mm - 600mm
Length: 500mm, 1000mm, 1200mm
Wall thickness: minimum wall thickness 0.75 depending on inner diameter. In tubes of wall thickness greater than 12mm, and tubes with the ratio of wall thickness to inner diameter greater than 0.4, cracks between the layers can occur.
Machined parts and cuttings are available on request.