Blog & Insights
Practical guidance, application notes, and company updates from Royal Refractories.
84 articles
Silica Ramming Mass Grain Size: Why Grading Matters
Particle-size distribution affects packing and installation of an induction furnace lining.
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Refractory Tile and Slab Dimensions: Specify More Than Thickness
Large tiles and slabs need face dimensions, thickness, material, and installation detail on the same drawing.
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Insulating Fire Brick Grade and Size: Keep Both on the Order
Dimensions alone cannot identify an insulating brick; confirm the grade, lining position, and shape.
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Arch Brick Taper Geometry: Avoid Gaps at Assembly
End and side tapers must match the arch radius, course layout, and intended joint thickness.
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Custom Refractory Brick Sizes: Put Tolerances on the Drawing
A nominal brick size is not enough for special shapes; record dimensions, taper, orientation, and permitted variation.
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Custom Refractory Grade Approval: From Sample to Production
A custom grade needs agreed acceptance values, installation trials, and batch controls before routine supply.
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Refractory Thermal Conductivity: Check Units and Temperature
A conductivity figure is useful only with its units, test temperature, and the lining thickness it will represent.
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Permanent Linear Change: Why the Test Temperature Matters
Read PLC values with their firing temperatures and sign before using them in lining comparisons.
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Low Cement Castable CaO Limit: Ask for the Binder Basis
Why a low-cement label alone cannot establish a project's maximum CaO or cement-content requirement.
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Refractory TDS vs SDS: Which Document Answers Which Question?
Technical data sheets and safety data sheets serve different decisions during buying, installation, and handling.
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High-Temperature Refractory Coating Trial: What to Record
A coating trial should document the substrate, layer thickness, cure, and observed condition after service.
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Aluminosilicate Refractory Coating vs Induction Coil Coating
Two coatings can have different substrates and duties; compare the application before comparing temperature figures.
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