Case Studies · Iron & Steel

Quench Furnace High Emissivity Coating: 10.7% Fuel Savings and 16.6% More Production at Seoul Shot

Steel shot air-quenching furnace·Seoul Shot Industry Company, South Korea

Rising fuel costs set Seoul Shot Industry an 8% energy-saving target on its natural-gas shot-ball quenching furnace. After optimizing furnace parameters, Emisshield M-2, ST-17, and ST-3 were applied to the shot tube, ceramic fiber, and hard-refractory walls. Fuel fell 10.7%, heat-up to operating temperature dropped from nearly five hours to under three, and production capacity rose 16.6%.

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−10.7% fuel
: Heat-up 4h56 to 2h43
: +16.6% production
: 1,000 to 1,010°C

The Challenge

Cut fuel on a furnace running at 1,000 to 1,010°C without sacrificing throughput.

What Was Applied

Three products across three substrates: M-2 on the shot tube, ST-17 on ceramic fiber, ST-3 on hard refractory. Operating conditions, heat-up, and production rates were recorded before and after.

Why It Worked

Coated lining and tube deliver more of each cycle's energy to the load sooner, so the furnace reaches temperature faster and cycles more often on less gas. See Production Increase.

Summary of Results

Metric	Before	After
Fuel consumption	Baseline (target −8%)	−10.7%
Heat-up time	4 h 56 m	2 h 43 m
Production capacity	Baseline	+16.6%

Next step

Operating the Same Asset?

Heat-up time limiting your cycles? Send us the furnace data and cycle log. We project the result from comparable documented installations.

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