PDFWAC 296-17A-5103
Classification 5103.
5103-00 Foundries, N.O.C.
Applies to:
Businesses operating foundries that manufacture castings from ferrous and/or nonferrous metals.
Work processes and activities include, but are not limited to:
• Melting metal in furnaces;
• Pouring or ladling melted metal into molds;
• Cooling and solidifying metal;
• Removing castings using shake out machines, torches, electric arcs, abrasive saws or sledgehammers;
• Repairing or refining by welding, annealing, tempering, flame hardening or other heat treatments may be needed depending on the product and the carbon or alloy content of the metal;
• Cleaning and finishing by machining, chipping, grinding, shot or sandblasting, tumbling and acid pickling to remove surface defects;
• Inspecting (sometimes by radiation or chemical analysis);
• Painting or powder coating.
Foundries may make their own patterns and molds, and/or perform their own finishing processes, or they may contract out to pattern-making shops or to machine shops.
Exclusions:
• Businesses that perform only pattern making functions are classified in 2906.
• Businesses that perform only machine shop services are classified in 3402.
Special note: Foundries that make their own patterns and/or perform their own machine finishing may report those operations separately in the classifications applicable to the work being performed, provided all of the conditions of the general reporting rule covering the operation of a secondary business activity have been met.
[Statutory Authority: RCW 51.04.020 and 51.16.035. WSR 25-23-070, s 296-17A-5103, filed 11/18/25, effective 1/1/26. WSR 07-01-014, recodified as § 296-17A-5103, filed 12/8/06, effective 12/8/06. Statutory Authority: RCW 51.16.035. WSR 98-18-042, § 296-17-663, filed 8/28/98, effective 10/1/98. Statutory Authority: RCW 51.04.020(1) and 51.16.035. WSR 89-24-051 (Order 89-22), § 296-17-663, filed 12/1/89, effective 1/1/90. Statutory Authority: RCW 51.16.035. WSR 85-24-032 (Order 85-33), § 296-17-663, filed 11/27/85, effective 1/1/86; Order 73-22, § 296-17-663, filed 11/9/73, effective 1/1/74.]