Eclipse Engineering Guide

INDUSTRIAL HEATING OPERATIONS–TEMPERATURE & HEAT REQUIREMENTS
(Cont’d)
Approximate Heat Content of
Material Operation Temperature, °F Material, Btu/lb*
Frit Smelt 2000-2400 400-550
Glass Melt 2200-2900 400-650
Anneal 1000-1200 –
Gold Melt 2000-2370 125-145
Lacquer Dry 150-200 –
Lead Melt 620-700 18-32
Lime Calcine 2000-2200 –
Magnesium Age 265-625 70-140
Homogenize 200-800 30-190
Hot Work (Extrude,
Roll, Forge) 550-850 110-200
Melt 1150-1550 375-490
Solution Heat Treat 665-1050 150-350
Stress Relieve 300-800 50-200
Meat Smoke 100-150 –
Pie Bake 500 –
Potato Chips Fry 350-400 –
Sand Dry 350-500 60-90
Sand Cores Bake 400-450 70-80
Silver Melt 1800-1900 155-165
Solder Melt 400-500 40-45
Steel Anneal 1150-1650 150-270
(Carbon & Alloy) Austenitize 1320-1650 180-270
Carbonitride 1300-1650 180-270
Carburize 1600-1800 260-300
Cyanide 1400-1600 210-260
Hot Work (Forge,
Roll) 2200-2400 360-400
Nitride 925-1050 110-140
Normalize 1500-1700 240-280
Stress Relieve 450-1350 50-210
Steel (Stainless) Anneal 1150-2050 150-340
Austenitize (Harden) 1700-1950 280-320
Hot Work (Forge,
Roll) 1600-2350 260-390
Stress Relieve 400-2050 30-340
Temper (Draw) 300-1200 25-160
Tin Melt 500-650 70-80
Titanium Age 900-1000 120-140
Anneal 1100-1600 150-250
Hot Work (Roll,
Forge) 1300-1900 180-310
Solution Heat Treat 1550-1750 240-280
Stress Relieve 1000-1200 140-170
Varnish Cook 500-750 –
Zinc Galvanize 850-900 130-140
Melt 800-900 130-150
Hot Work (Extrusion,
Rolling) 200-575 10-55
*Heat contained in material only. Does not include furnace or oven losses or available
heat correction.
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