See our full range of Rectangular, straight-sided, ceramic crucibles. These rectangular crucibles have a flat bottom; are rectangular in shape, and have straight sides.
The rectangular crucibles are available in two materials, high purity recrystallized Alumina (99.8%) and Yttria Stabilised Zirconia. They offer varying degrees of temperature and thermal shock resistance and will perform differently as a result. There is a price difference between the two materials and you therefore may need to consider which type is most suitable for your use case.