EFG CZ KY sapphire tubes rods Al2O3 99.999% single crystal sapphire

Short Description:

Single crystal sapphire possesses excellent optical, physical and chemical properties. It is the hardest oxide crystals, and remains high strength and chemical resistance at high temperatures. It also features a wide transmission wavelength range, great electrical insulation, and good thermal conductivity at low temperatures.

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Product Detail

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Depends on length and Diameter

This glass tube is made of sapphire crystal that has a hardness that ranks nine out of ten in the Mohs scale, making it the hardest material second to diamond. It is also designed to be anti-impact, anti-scratch. The sapphire crystal glass tube is great for repairs and replacements for machinery components, optical equipment and electronic parts.

● A premium-quality sapphire glass tube

● An anti-impact and anti-scratch design.

● With high electrical resistance.

● Features a high optical production rate.

● With good thermal stability.

● Features a high melting temperature of 2030 °C.

● With a high hardness of 9 Mohs, which is second to diamond.

● Purity: 99.99%.

● Density: 3.98-4.1g/cm2.

● Compressive strength: 21000kg/cm2.

● Flexural strength: 4000kg/cm2.

● Infrared transmittance: 85%.

● Dielectric constant: 7.5 - 10.5.

● Place of origin: China.

● Color: transparent or custom-made.

● Available in customized designs.

Welcome inquiry for any drawing and details.Sapphire tube application field

Sapphire pipe fitting (one end sealing pipe fitting is available)
Outside diameter	Wall thickness	Length
5～10mm	1～4mm	0～1400mm
20～30mm	1～10mm	0～1400mm
30～50mm	1～15mm	0～1400mm
50～70mm	1～15mm	0～400mm
1～3mm	0.3～1mm(inner diameter)	0～150mm

Materials characteristic
Refractive index(nd)	1.768
Coefficient of dispersion(Vd)	72.2
Density（g/cm³）	3.97
TCE（μm/m℃）	5.3
Soften Temperature(℃)	2000
Knoop hardness(kg/mm2)	2000

Diamete	1-35mm
Diameter tolerance	+/-0.1mm or +/-0.02mm
Thickness	0.10-100mm
Thickness tolerance	± 0.1mm or +/-0.02mm
Surface quality (scratch & dig)	60/40, 40/20 or better
Surface accuracy	λ/10, λ/2, λ
Clear Aperture	>85%, >90%
Parallelism	+/-3' ,+/-30''
Bevel	0.1~0.3mm×45 degree
Coating	AR, BBAR or upon customer request (UV, VIS, IR)