Case Study · Iron & Steel
Quench Furnace High Emissivity Coating: 10.7% Fuel Savings and 16.6% More Production at Seoul Shot
| Industry | Iron & Steel |
|---|---|
| Asset | Steel shot air-quenching furnace |
| Customer or location | Seoul Shot Industry Company, South Korea |
| Products used | Emisshield M-2, ST-17, ST-3 |
| Headline metric | −10.7% fuel |
| Secondary metric | Heat-up 4h56 to 2h43 |
| Also measured | +16.6% production |
| Also measured | 1,000 to 1,010°C |
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%.
01
What was the challenge?
Cut fuel on a furnace running at 1,000 to 1,010°C without sacrificing throughput.
02
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.
03
What were the 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% |
04
Why did it work?
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.
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