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High Purity MGO Magnesium Oxide Ceramic Crucibles for Metal Melting
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- Supplier: Shanghai Gongtao Ceramics Co. Ltd.
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Product Overview
Description
2024 Shanghai Gongtao MgO Magnesium Oxide ceramic tube for tube furnace
Product Data
Product Overview
Magnesium oxide ceramics belong to the cubic crystal system. Magnesium oxide ceramics have a large thermal
expansion coefficient and a high vapor pressure. The melting point is 2800℃, but it is volatile above 2300℃; the specific volume resistance (35V/mm) at high temperature is large. Has good insulating properties.
expansion coefficient and a high vapor pressure. The melting point is 2800℃, but it is volatile above 2300℃; the specific volume resistance (35V/mm) at high temperature is large. Has good insulating properties.
Product Features
1. High-purity magnesium oxide ceramics have strong corrosion resistance to metals and alkaline solutions, and
are used as crucibles for melting high-purity iron and alloys as well as nickel, thorium, uranium, tin, lead, zinc, copper, cobalt and their alloys.
are used as crucibles for melting high-purity iron and alloys as well as nickel, thorium, uranium, tin, lead, zinc, copper, cobalt and their alloys.
2. As a container for fused alumina and aluminum salts.
3. The thermocouple protection tube made of magnesium oxide is used to measure the high temperature above 2000℃.
MgO Ceramic Physical Properties | ||||
Properties | Unit | MgO | ||
Contents | % | 95, 99.5 | ||
Density | g/cm3 | 3.56 | ||
Hardness | Mohs' | 6 | ||
Liner Thermal Expansion | /℃ | 8.6 x 10-6 | ||
(40° to 250°) | ||||
Work Temperature | ℃ | 2400 | ||
Flexual Strength | MPa | 84 | ||
Compressure Strength | MPa | 14 | ||
Fracture Strength (5 distance) | MPa | 125 | ||
Thermal Conductivity | W/m.k | 15.9-42 | ||
Volume Resistivity (100 ℃) | - | >1012 | ||
Dielectric Constant 1.0 MHz | - | 5.8 | ||
Max Size | - | 250mm Long | ||
Product Specification
Product Features
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