Eagle Group Blog | Metal Properties

Metal Properties: Weldability

Posted by Jason Bergman on 2024 Jan 9

Joining multiple metal parts together into a single, cohesive unit is an indispensable process to manufacturing. Bolts, screws, and adhesives are often used to unite separate parts, but many applications call for a more solid connection. Thanks to the craft of welding, manufacturers are able to effectively create a single part from multiple components. Casting facilities are also able to use welding to repair minor casting defects, improving overall process efficiency and reducing part cost.

Understanding the weldability of various alloys is key to creating welds that last and parts that perform in the field. As a mechanical property, weldability is also an important consideration in designing and producing cast parts.

Read More

Tags: Welding, Metallurgy, Metal Properties, Mechanical Properties

Metal Properties: Hardness

Posted by Jason Bergman on 2023 Feb 7

“Hardness” is a concept we use every day to compare objects: fresh bread vs. stale bread, a baseball vs. a softball. In manufacturing the definition is a bit more specific: hardness is a measure of a material’s ability to resist localized scratching or deformation by indentation at a specific loading location.

Our understanding of hardness and relative hardness between materials is key to manufacturing metal products. The correlation of hardness with other mechanical properties also makes it possible for us to predict, with a high degree of accuracy, the strength and ductility of a material without submitting it to destructive testing.

Read More

Tags: Metallurgy, Metal Properties, Measurement, Mechanical Properties

Metal Properties: Ductility

Posted by Nic Tarzwell on 2022 Oct 26

Ductility describes a metal’s amenability to being drawn or stretched without breaking. It is one of the crowning mechanical properties of a metal. Without a sound understanding of the science of ductility, manufacturers would be unable to guarantee the safety of their machinery.

In this blog, we’ll explain why manufacturers rely on ductility to guide them in casting parts that uphold integrity in service while protecting machinery against catastrophic failure.

Read More

Tags: Metallurgy, Metal Properties, Mechanical Properties

Metal Properties: Strength

Posted by Jason Bergman on 2022 Jul 20

Past civilizations had practical reasons for caring about metal properties. They asked questions like “Can I break my enemy’s sword before he breaks mine?” or “How thick does my armor need to be to provide enough protection?” These warriors had a vested interest in material strength.

Read More

Tags: Metals, Metallurgy, Metal Properties, Mechanical Properties

Metal Properties: Conductivity

Posted by Jason Bergman on 2022 May 26

In previous installments of our series on Metal Properties, we’ve discussed characteristics that set metals apart from one another, as well as those that distinguish them from other nonmetallic elements. Conductivity represents an array of essential features that go to the very heart of what defines a metal. In this article we will be asking: what are the factors affecting the conductivity of metals? What are the most thermally and electrically conductive metals, and why does conductivity matter for manufacturers?

All materials possess some degree of conductivity. One of the main characteristics of metals is their ability to conduct heat and electricity, so metals are all relatively conductive compared to non-metals. However, even within metals you’ll find a broad range in levels of conductivity. A sound knowledge of where various metals fall on the spectrum helps manufacturers choose the right alloy for each product.

Read More

Tags: Metal Properties, Physical Properties, Conductivity

Metal Properties: Corrosion Resistance

Posted by Jason Bergman on 2020 Nov 18

Corrosion is a common challenge affecting the surface of most metal parts. While corrosion often only affects the aesthetics of a metal part, severe corrosion can affect performance and can even lead to equipment failure. Corrosion is such a widespread challenge that the global cost of corrosion is estimated to be $2.5 trillion annually, according to a study by the National Association of Corrosion Engineers (NACE).

Here we explore many of the ways corrosion can manifest in a material, and the techniques manufacturers use to prevent corrosion from affecting part performance.

Read More

Tags: Materials, Metals, Metallurgy, Metal Properties, Physical Properties

Overview of Mechanical Properties of Metals

Posted by Jason Bergman on 2020 Jun 17

In the metal manufacturing industry, mechanical properties play a huge role when choosing the right alloy for each job. Throughout casting and machining processes, as well as during the product's useful life, the chosen material will be subject to many external forces. It’s up to the manufacturers to create products that perform as needed every step of the way. By understanding mechanical properties, manufacturing professionals can make the right choices for materials and processes.

Read More

Tags: Materials, Metals, Metallurgy, Metal Properties, Mechanical Properties

Overview of Physical Properties of Metals

Posted by Jason Bergman on 2020 May 19

Physical properties are an important way of distinguishing one material from another. In the study and application of metallurgy, physical properties are often considered a broader category than mechanical properties, but not all properties overlap. Physical properties are most easily distinguished from mechanical properties by the method of testing. While mechanical properties require forces to be applied to obtain a measurement, physical properties can be measured without changing the material.

Read More

Tags: Materials, Metallurgy, Metal Properties

Metal Properties: Introduction

Posted by Jason Bergman on 2020 Mar 3

Metals are all around us, in the things we use to cook, drive, work, and live. When choosing a metal for a cast product or other specific application, it’s important to make sure that its properties will be suitable for the expected operating conditions.

There’s a big difference between the kind of metal used in a skyscraper and the kind of metal used in a gate valve. Some metals are pure elements, like iron (Fe) and aluminum (Al), but most products are made from alloys, or mixtures of metals. Manufacturers must consider many variables before deciding which alloy to use for a particular product. 

Read More

Tags: Materials, Metals, Metal Properties

8 Key Metals Used in Casting

Posted by Deb Pipoly on 2017 Oct 10

We're here to talk about METAL

No, not that kind of metal–actual metal, like the kind that your car is made out of, that replaced your uncle's bad knee, that holds up the skyscrapers downtown, that keeps cruise ships afloat, that built the rocket that catapulted the telecom satellite into space so you can have an internet connection, that makes up that satellite...

A lot of things are made out of metal. You get the idea. 

Read More

Tags: Materials, Metals, Metal Properties

Subscribe to Email Updates

Eagle Group Blog

Get to know our companies, and learn about the metalcasting/machining industry, by reading the Eagle Group Blog.

What you'll find on the Eagle Group Blog:

  • Useful resources
  • Interesting updates
  • Industry News
  • Upcoming Events

    Follow The Eagle Group