In automotive exhaust systems, 304 and 409 are the most common grades of stainless steel. What else are these grades used for? Why is stainless steel used in cars? What sets these two grades apart?
Tag Archives: Engineering
Trench drain seems simple: it’s a grate on a hardscape surface with a gutter beneath to capture water runoff. Yet there’s a lot to consider, including flow, debris, aesthetics, and load. Check out our post on choosing and installing the right trench for water management.
Bolting or anchoring bollards to uneven ground requires a little preplanning, but sloping surfaces do not prevent their installation. With strategies like grinding, shimming, and grouting, bollards can be securely installed on uneven ground.
Learn about polyurethane plastic’s properties, uses, and production. How is polyurethane recycled at the end of the product life cycle?
Metal corrosion can eat away at parts, causing them to fail. Passivation creates a self-healing chemical seal that uses corrosion to defeat corrosion. Learn about passivation in stainless steel, aluminum, and other metals.
Asphalt can soften when exposed to high heat, and there is no way to control its hardness throughout the seasons. Concrete footings can be used to provide a firm foundation for bollard installations into asphalt. Learn more about asphalt properties and bollard installation techniques.
Spectrochemical analysis is used to determine the arrangement of atoms and electrons within molecules of chemical compounds. Optical emission spectroscopy (OES) is a type of spectrochemical analysis that determines elemental components in solid metal samples, often used in foundries.
Powder-coating is a durable, long-lasting finish for metal objects that protects the objects from corrosion and weathering. Available in colors similar to paint, it can also add visual appeal or visibility. Learn more about powder coating on our blog.
3D printing is a valuable tool for constructing prototypes when making cast metal parts. It speeds up the design process, allowing iteration and adjustment before going to the foundry. Read about how 3D printers are used in the cast metal industry.
What is hardness testing? The Brinell hardness test, Rockwell hardness test, and Leeb rebound hardness test show the properties of castings.
Learn how to select the right grade and class of ASTM A27 steel for your casting project. Each grade varies based on chemical composition, and type of heat treating needed to affect changes in mechanical properties. Find out the differences between testing steel for tensile strength vs. hardness.