Molten Metal Systems

Iso-Alustar FL

Iso-Alustar Z2 is a premium quality hybrid ceramic bonded clay graphite crucible with a high silicon carbide and graphite content that is manufactured through an advanced iso-static pressing process. Iso-Alustar FL is a modified version of Iso-Alustar Z2 with excellent performance under heavy flux usage.

Morgan Molten Metal Systems uses a proprietary processing technology that results in a product with a very homogenous and high density structure. This allows the crucible to obtain superior thermal conductivity over its entire operating temperature range, high mechanical strength and erosion resistance along with good thermal shock resistance. These properties translate into a durable and robust crucible with excellent performance characteristics in higher temperature environments.


Iso-Alustar FL are designed to perform exceptionally well to melt and hold copper and copper alloys in induction and fuel-fired furnaces as well as in zinc distillation applications. Iso-Alustar FL can also be used in precious metal melting applications.

Iso-Alustar FL Typical Metal Casting Temperature 

800°C - 1250°C (1472°F - 2282°F).

Performance Characteristics

  • Very good thermal conductivity.
  • Excellent resistance to chemical attack.
  • High mechanical strength and good erosion resistance.
  • Good thermal shock resistance.
  • High refractoriness.


Iso-Alustar FL crucibles are finished in a green colour.

Pattern Range

Iso-Alustar FL crucibles are available in a range of shapes and sizes to suit most end user requirements.

For available sizes and shapes click here.

Contact us for a specific recommendation based on your requirements.


Iso-Alustar FL crucibles are manufactured from premium grade raw materials under an ISO 9001:2015 quality management system.