Not many other American Foundries have been providing customers with best-in-class products and services for over 140 years. Let us put our knowledge and experience to work for you. Call 888-550-2564 for a free quote today.
- Castings from a few ounces to a few tons, in small and large quantities
- Wide range of ASTM standard cast iron grades including gray, ductile, austempered ductile and ni-hard iron castings
- In-house metallurgical testing and heat-treating capabilities
- New furnaces installed in 2009, which increased production with faster melt time
Expert Iron Castings
Cast gray iron is the oldest and most recognized type of cast iron. It has been produced in a variety of forms for thousands of years, and is composed of graphite flakes, either ferrite, pearlite or a combination of the two.
Cast gray iron can be metallurgically adjusted to make the final product harder or softer to suit a customer's specific application. Alloy additions and secondary processes, such as annealing or heat-treating, can affect the physical properties of the gray iron casting resulting in a stronger product.
Sioux City Foundry has been producing quality castings for over 140 years. We continue to supply gray, ductile, austempered ductile and ni-hard iron castings. Our customers come from a variety of vocations and interests including the industrial, engineering, decorative, architectural, government and artistic sectors.
We have the capability to pour custom castings from a few ounces to 3,000 pounds. We produce various mold sizes with green sand molding processes utilizing Hunters, Squeezer, and Rota-Lift systems, as well as the Flaskless no-bake molding system. We also have the capability to produce oil sand, shell sand, isocure, and no-bake cores. Our experienced and knowledgeable staff, along with our modern production methods, increases production efficiency. In-house metallurgical testing, heat-treating capabilities and new furnaces, installed in 2009, allow us to decrease the amount of time it takes to melt the iron, and provide quality metal castings at competitive prices.