Case Studies · Iron & Steel

Furnace Roll High Emissivity Coating: Scale Pickup Eliminated on Duraloy Plate Heat-Treating Rolls

Plate heat-treating furnace rolls·Austenitizing steel plate furnace, natural gas

High-temperature furnace rolls from Duraloy Technologies were coated with Emisshield for use in an austenitizing steel plate furnace where scale accumulated on rolls at the furnace exit. The coating eliminated pickup on the roll surface, removing a source of plate surface defects, extending roll life, and reducing downtime.

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Scale pickup eliminated
: 1,750°F (950°C)

The Challenge

Scale accumulating on exit rolls marked the plate surface and shortened roll life.

What Was Applied

Emisshield on Duraloy MO-RE 1® rolls operating at 1,750°F (950°C) in natural-gas service.

Why It Worked

The sealed, high emissivity roll surface runs at a uniform temperature that scale does not adhere to, and sheds absorbed heat by radiation. See Parts & OEMs.

Summary of Results

Metric	Uncoated	Coated
Scale pickup on roll surface	Recurring	Eliminated
Plate surface defects from scale	Present	Removed
Roll operational life	Baseline	Extended
Downtime	Baseline	Reduced; higher production efficiency

Next step

Operating the Same Asset?

Rolls or tubes picking up scale? Send us the alloy, temperature, and defect data. We project the result from comparable documented installations.

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