- Less than 12% porosity, with surface porosity of less than 1% +
- Maximum service temperature of 1,450 °C
- Economical choice
- Non-ferrous furnaces
- Heat treatment furnaces
N-Durance®
Properties | Unit | Spec. | Typical Values |
Bulk Density | g/cc | >2.75 | 2.80 |
Apparent Porosity | % | <12 | 8 |
Surface Porosity | % | <1 | 0.5 |
Cold Modulus of Rupture (at room temperature) | MPa | >150 | 160 |
Hot Modulus of Rupture (at 1,400°C) | MPa | >140 | 180 |
Modulus of Elasticity | GPa | 240 | |
Thermal Conductivity (at 1,000°C) | W/m.K | 20 | |
Co-efficient of Thermal Expansion | °C | 4.4x10-6 | |
Maximum Service Temperature | °C | 1,450 |
Refrax® 20E
Properties | Unit | Typical Values |
Bulk Density | g.cm-3 | 2.20 |
Apparent Porosity | % | 28 |
Modulus of Rapture ar 20°C | N.mm-2 | 25 |
Thermal Conductivity at 1,000°C | W/m-1.K-1 | 18.5 |
Abrasion Resistance - BS1902 | cm-3 | 80 |
Cryston® 789A
Properties | Unit | Typical Values |
Bulk Density | g.cm-3 | >26.2 |
Apparent Porosity | % | <16 |
Modulus of Rapture at 20°C | N.mm-2 | >165 |
Thermal Conductivity at 1,000°C | W/m-1.K-1 | 15.5 |
Abrasion Resistance - BS1902 | 10-6/°C | 5.1 |
STANDARD DIMENSIONS OF NBSiC TUBES*
* Technical data, right of modification reserved
OD | ID | Length | |
N-Durance® | 20 - 50 mm | 8 - 26 mm | Up to 1100 mm |
Refrax® 20E | 20 - 90 mm | Wall 4 - 10 mm | Up to 1600 mm |
Cryston® 789A | 25 - 40 mm | 12 - 27 mm | Up to 1500 mm |
Documents
Related Content
Systems for Kilns & Furnaces
Discover Saint-Gobain Performance Ceramics & Refractories’ comprehensive range of ceramic products and solutions - designed, developed, and manufactured...
Primary Copper
Discover Saint-Gobain Performance Ceramics & Refractories’ custom engineered solutions for flash melter applications.
Secondary Copper
Customized engineered solutions for copper shaft and holding furnace applications.
Related Products
Hexoloy® SE Thermocouple Protection Tubes
Discover Saint-Gobain Performance Ceramics & Refractories’ range of products for thermocouple sensor protection.
Silit SK SiSiC Tubes
Discover Saint-Gobain Performance Ceramics & Refractories’ range of products for thermocouple and gas sensor protection.
Alundum and Magnorite Crushable Insulators
Discover Saint-Gobain Performance Ceramics & Refractories’ range of products for Mineral Insulated Metal Sheathed (MIMS) thermocouple protection.