China Small Crucible Melting Gold Test Fire Assay Quartz Crucible, Find details about China High Quality Melting Quartz Crucible, Heat Resistance Quartz Crucible for Melting from Small Crucible Melting Gold Test Fire Assay Quartz Crucible
Chemical composition (unit:ppm)
Al | Fe | K | L | C | N | B | C | M | OH |
20 | 0.4 | 1 | 1.4 | 0.01 | 1.5 | 0.2 | 0.5 | 0.05 | 120--260 |
Material | Quartz |
Color | Transparent or clear |
Surface | No Air Bubble ,no process |
Density | 2.1g/cm 3 |
Degree of Hardness | 6.5Moh's Scale |
Softening Point | 1750 C |
Strain | 1270 C Fused The Quartz Glass Brick |
PPM grade | Controlled 10/20/100 PPM |
Shape | Circle/Square /Rectangle |
Thickness | 0.5 MM-100 MM |
1.Q: How can I get some samples?
A: If we have sample in stock, we can offer it free.
However, you need to afford the freight charge.
If it is need to be customized,we will charge you some fees without profit.