High Deep Cut Off UV Block Quartz Tube

I. Application

Outer tube for automotive lamps and other U V-resistant quartz materials

II. Product Features

Cerium-doped quartz glass absorbs all UV-B and C, and its softening point is about 50℃ lower than that of conventional tr ansparent quartz glass. Low OH, extreme appearance, and dimensional toleranc es can meet quartz materials that used in high-end UV protection.

III. Product Type

WQPQ323,High Deep cut off UV block Quartz tube

IV. Typical Size

OD RangeODToleranceWallThicknessWTToleranceOut ofRound Siding Bow
3<Ф≤10±0.11~2.0±15%2%12%0.15%
10<Ф≤20±0.21~2.5±15%1.25%12%0.15%
20<Ф≤30±0.251.5~3.0±15%1.25%12%0.15%

V. Physical and Chemical Properties

i. Mechanical and Thermal Properties

Density(20℃kg/m3ThermalExpansionSofteningPoint(℃)AnnealingPointStrain Point(℃)
(200-300℃℃-1 (℃) 
2.1*1035.8*10-7162011601060

ii. Impurity Value

ImpurityNaKMgLiCaFeAlTiCu
Typicalvalue 1.1 1.2 0.5 0.9 1.0 0.5 16.2 1.5 0.05

iii. OH Content

Typical Value without BakingAfter baking
130<2

iv. Optical Properties

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