Heat-shield parts with high-density,exact-measurement,smooth-durface,convenient-assembly can improving the crystal-pulling.

Ⅰ, Physical and chemical properties

1,Purity:Mo≥99.95%

2,Density::Mo≥10.1g/cm3

3,Application temperature environment:≤2100°C;

4,Vapor Pressure:10-6 Pa at 2100°C

5,Ductile Brittle Transition Temperature:at 20°C-200°C.

6,Recrystallization Temperature:1050°C.

7,Oxidation Resistance: Molybdenum can oxidize sharply in air with temperatures above 400°C

Ⅱ, Measurements and tolerances

Unit:mm

Produced by single molybdenum sheet			Produced by multi-molybdenum sheet
thickness	Max cylinder diameter	Max cylinder height
2.0±0.1	660±0.2	2.0±0.1
1.0±0.08	660±0.2	1.0±0.08	Manufacture according to customers’
0.5±0.04	660±0.2	0.5±0.04	requirements
0.3±0.03	660±0.2	0.3±0.03

Special sizes can be manufactured based on customers' requirements

Molybdenum reflection shield