Producers of High Quality Fire Assay Fluxes, Fire Assay Crucibles, Cupels, Certified Gold Reference Standards and Custom Designed Laboratory Equipment.
Western Refractories has been producing fire assay consumables since 1997.Triple tested fluxes, multi trip crucibles, cupels and ISO Guide 35 certified gold standards.
Fire Assay Crucibles
Western Refractories fire assay crucible range is available in 30g, 40g, 50g and 55g, with other sizes available on request.
Dimensions and Volumes of Crucibles
| Assay Crucible Type | Qty per Crate | Avg Shipping Weight | Avg Pot Weight | Height | Top Diameter | Base Diameter | Volume in ml |
|---|---|---|---|---|---|---|---|
| WR30 | 1716 | 780 | 425 | 127 | 82 | 58 | 270 |
| WR40 | 1750 | 900 | 485 | 134 | 89 | 56 | 325 |
| WR50 | 1200 | 710 | 550 | 145 | 105 | 58 | 440 |
| WR55 | 1320 | 680 | 480 | 156 | 88 | 58 | 440 |
Please note that minor variations do occur, due to differing rates of shrinking.
Various Pot Sizes
From left to right: 55g, 50g, 40g, 30g.

Schematics
Profile and dimensions of 30g and 40g crucibles

Profile and dimensions of 50g and 55g crucibles

