smelting crucibles for jewelry

smelting crucibles for jewelry

Fire assay crucible applied in analyzing laboratory metal samples molten material and industrial analysis.

Shape: arc crucible, tapered crucible, cylindrical crucible and according to consumer’s requirement

Property:

Al2o3³45%

R2o£6%

Sio2³48%

Fe2o3£1%

Porosity :< 1%

Bending strength>320

Compressive strength>12000

Max service temperature:1600°C

Product features:

1. High purity, good chemical corrosion resistance

2.Good temperature resistance, long time used at 1300°C short time used at 1550°C

3. Good thermal shock, resistant to broken

4. High shaped density, not leaky

The specification   : 200 ml 240 ml 300 ml 350 ml 400 ml 450 ml 550 ml.