All Casting Blog Posts

Cast iron parts at a foundry

Introduction to Cast Iron: History, Types, Properties, and Uses

The presence of iron in everyday life began in about 1200 BCE, encompassing a wide range of uses from farming implements to weapons of war. Blacksmiths became a critical profession, working with iron to change its properties and shape the material into tools. Every village and town would have a blacksmith’s shop, where sickles, plowshares, nails, swords, candlestick holders, and more were produced.

A BBQ on a backyard patio with a black enameled lid and shiny stainless steel components

304 vs 430 stainless steel

There are many different grades of stainless steel on the market. It can be confusing for a non-metallurgist to know what alloys are best for what applications. Previous posts have talked about 304 stainless (common in kitchens), 316 stainless (marine grade), and 409 stainless (popular in car exhausts). For those

Stainless steel industrial kitchen

Steel vs. Stainless Steel

Steel and stainless steel are both reliable metals found in a wide range of products, from substantial applications to very small parts. So, which one is better? The answer is “it depends!” Steel’s affordability makes it an ideal metal for many projects. It’s typically used in infrastructure, ships, appliances, weapons,

Shiny chrome exhaust pipes under a cherry red car

304 Stainless Steel versus 409 Stainless Steel

304 is an austenitic stainless steel high in chromium and nickel with very high corrosion resistance. It is one of the most commonly produced and used stainless steel grades. 409 is a ferritic stainless steel with less chromium and very little nickel. It less expensive to produce than 304, but

Stainless steel bloom production

Stainless Steel Production and Processing

We have manufactured steel for a thousand years, but stainless steel is a relative newcomer. It was invented in 1913 by a Harry Brearley, a British metallurgist. Chemists, engineers, and materials scientists have been experimenting ever since. As a rust-resistant alloy, it can offer the same material properties as steel

A stainless steel clad modernist building with curved walls reaches towards a blue sky.

Austenitic Stainless Steel

Stainless steel is called “stainless” because of its resistance to rust. Steel contains iron and carbon in certain percentages: adding the element chromium transforms it from steel to stainless steel. Starting with these three basic elements, metallurgists have created a huge range of stainless steels. Types of metals in the

Steel pipe scaffolding used during colosseum restoration

Steel Pipe: An Introduction

Steel pipes are cylindrical tubes made from steel that are used many ways in manufacturing and infrastructure. They’re the most utilized product made by the the steel industry. The primary use of pipe is in the transport of liquid or gas underground—including oil, gas, and water. However, pipes of varying

A glowing crucible of molten iron is being cast in a foundry

Ductile Iron vs. Cast Iron

When choosing an iron alloy for a casting, a metallurgist considers the budget, required mechanical properties, and post-casting steps like machining and heat treatment. These requirements decide what alloy to use. These days, the biggest choice is between ductile iron vs. cast iron. Technically, “cast iron” suggests iron alloys that

A foundry worker in a silver heat suit ladles flaming molten metal from a crucible

Globalization of Production

Reliance Foundry’s history spans the rise and fall of manufacturing in the West. From boom times through the 1920s, to decline during the globalization of production, the business of metal casting is closely tied to larger economic trends. The 1995 book “Fire in the Blood” is a detailed look at

Detectable warning plate with patina

Stages of Rust

As a material that satisfies tough, industrial requirements and offers appealing aesthetics, metal is used for products everywhere. Metals boast resilience and strength in heavy-duty applications and hardscape supplies. In infrastructure, metal can be styled in versatile ways to blend in with both the traditional and contemporary. When high-quality new