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iron foundry

Iron Foundry

Operating for over 140 years, our Iron Foundry produces custom iron castings for industrial, architectural, mechanical, and artistic clients. Call 888-550-2564 today and let us put our knowledge and experience to work for you.



Best in Class Iron Foundry

Sioux City Foundry is a modern ductile iron, austempered ductile iron, grey iron and ni-hard iron foundry. Located in the Midwest, we work with clients from across the US and around the world. Our Best-in-Class Iron Foundry customers come from industrial, engineering, decorative, architectural, and municipal sectors and all require high quality, competitive pricing and quick order turn-around.


Our team of knowledgeable and experienced professionals, modern facilities and methods of production, let us provide competitively priced, high quality metal castings. New furnaces, installed in 2009, along with our own in-house metallurgical testing and heat-treating capabilities, assure the high quality products our clients expect and deserve.


We can pour or repair custom castings. We work with a range of sizes from a few ounces to several tons, and can produce one-of-a-kind products, or thousands of castings. We use the green sand method, Flaskless no-bake molding system, as well as use and provide oil sand, shell sand, isocure, and no-bake cores as required.


In addition to custom iron castings, we offer in-house metallurgical testing, heat-treating and specialty products, such as Pile Drive Hammers, Follow Blocks and Breaker Balls.