Metal Casting & Foundry
Foundry Methods, Materials & Finishing Processes
The guide continues with a breakdown of modern foundry methods, from sand casting and shell molding to lost foam, permanent mold, and centrifugal processes. It highlights finishing steps such as heat treatment, machining, surface protection, and nondestructive testing that ensure each casting meets performance targets. Whether you’re evaluating materials for automotive systems, heavy equipment, water infrastructure, or industrial machinery, this page helps determine if ductile iron is the right fit for your next project.
Explore Ductile Iron Castings
Ductile iron remains one of the most reliable cast materials for manufacturers that need strength, stability, and predictable performance. Learn how ductile iron castings are engineered, why their nodule‑based graphite structure improves elasticity and impact resistance, and how different ASTM A536 grades support varied load, vibration, and fatigue requirements.
Continue ReadingSand Casting for Your Project
Sand casting remains one of the most widely used metalcasting methods because it supports complex shapes, large components, and a broad range of alloys. This overview explains how sand castings are made, from pattern creation and mold preparation to melting, pouring, cooling, and finishing. It highlights why the process continues to be a dependable choice for industrial equipment, heavy machinery, infrastructure, and energy systems.
With controlled processes and modern quality checks, sand casting delivers consistent performance across applications. Visitors can learn how G&W Foundry manages each stage to produce reliable components and support real‑world manufacturing needs.
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Family owned since 1932.
Our dad founded G&W Foundry selling stove and spare parts. We are now a global company offering domestic and imported castings, supply chain management, tooling, foundry services, and design/development. A lot has changed, but a lot has not. We embrace the latest technology to do things faster, smarter, and better, but we retain our dad’s devotion to quality, service, and integrity.”
Made In America
Make a statement by saying “Made in America.” Our foundries are located in the United States, employ US citizens and buy parts from American companies. Our mission is to strengthen American manufacturing and create jobs. We believe that by growing American manufacturing, our economy and country will grow as well.