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SIC 3443 Fabricated Plate Work—Boiler Shops
Encyclopedia of American Industries
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2005
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COPYRIGHT 2005 The Gale Group, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group.
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SIC 3443
FABRICATED PLATE WORK—BOILER SHOPS
This classification includes establishments primarily engaged in manufacturing power and marine boilers, pressure and nonpressure tanks, processing and storage vessels, heat exchangers, and weldments and similar products; these are made by cutting, forming, and joining metal plates, shapes, bars, sheets, pipe mill products, and tubing to custom or standard design for factory or field assembly. Excluded from this category are establishments primarily involved in manufacturing warm air heating furnaces, which are classified in SIC 3585: Air Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment. Those establishments primarily engaged in manufacturing nonelectric heating apparatus other than power boilers are classified in SIC 3433: Heating Equipment, Except Electric and Warm Air Furnaces. Also excluded from the fabricated plate work classification are manufacturers of household cooking apparatus and those manufacturing industrial process furnaces and ovens. The former are covered in SIC 3631: Household Cooking Equipment, and the latter are listed under SIC 3567: Industrial Process Furnaces and Ovens.
NAICS Code(s)
332313 (Plate Work Manufacturing)
332410 (Power Boiler and Heat Exchanger Manufacturing)
332420 (Metal Tank (Heavy and Gauge) Manufacturing)
333415 (Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing)
Industry Snapshot
Plating—the application of a thin metal layer on a surface to enhance wearing quality, prevent leakage, and protect against corrosion—is used in the fabrication of many products. The manufacturing process generally is consigned to manufacturers involved in the fabricated plate work industry. Although the bulk of the industry's shipments comprises a multitude of products manufactured through plating processes, the core of the fabricated plate work industry essentially includes the manufacturing of power and marine boilers and various types of plate tanks and storage vessels.
Power boilers, as classified by the American Society of Mechanical Engineers, operate at greater than 15-psig steam pressure and are intended for stationary service, which excludes locomotive boilers from the scope of the fabricated plate work industry. Boilers operating at 15 psig steam pressure or lower, known as low-pressure heating boilers, are classified in SIC 3433: Heating Equipment, Except Electric and Warm Air. Power boilers, designed to operate at high pressures and temperatures, generate steam to provide power for utility companies and for various industrial processes. The boiler itself consists of two principal parts: the furnace, which provides heat, usually by burning fuel, and the boiler proper, in which water is converted to steam by the heat piped in from the furnace. A steam engine derives its power from steam generated under pressure in a boiler. Marine boilers are designed and fabricated for use aboard a wide range of vessels, including tugboats, ocean liners, oil drilling barges, freighters, and aircraft carriers.
Organization and Structure
The fabricated plate work industry is comprised of large and small manufacturing facilities. In 1997, a total of 25,074 workers were employed by 1,034 fabricated plate work establishments.
Geographically, fabricated plate work manufacturing occurs throughout much of the United States, with 43 states containing 5 or more manufacturing facilities. The bulk of manufacturing activity in the mid-1990s took place in Texas, Pennsylvania, California, Ohio, and Oklahoma. Together, these states contained 712 manufacturing establishments, which generated $3.6 billion in sales and accounted for 38.9 percent of the total domestic shipments delivered by the industry. These states employed 37.2 percent of the industry's workforce.
Texas, with 210 establishments, contained the greatest number of fabricated plate work manufacturing facilities in any one state and had the highest total revenue collected and shipment volume, posting $987.5 million in sales and accounting for 11 percent of the industry's total shipments. Although California's 181 establishments topped Pennsylvania's 127,...
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