Modern steels offer a large range of properties. You can use steel that is stronger to make lighter parts. Resistance to weathering is obtained through steel chemistry and through coatings on top of the steel. The steel industry is constantly doing research to develop steels that are simultaneously stronger, more formable, and more corrosion-resistant than previous grades. Chesterfield offers these new steel coil grades and products. Talk to us about which of these steel coil grades provide the most economical combination of strength, ductility, and corrosion-resistance for you.
As a steel coil distributor, we know you'll sleep easier knowing that your production requirements are backed by over 50,000 tons of custom-designed steel, sourced from the finest steel producers worldwide. Each coil is designed to your exacting specifications and has your company's name, part number, and size already on it before it even hits our processing equipment. Inventory Control Reports, generated by our custom-designed Inventory Management System, are supplied to give you the peace of mind you deserve.
Have a question? Need more information about our products or processes? Our team would love to talk with you to understand your unique needs.
Types of Steel We Offer
Chesterfield offers a variety of different types of steel, including:
- Hot Rolled Steel Coil: Recommended for precision thickness Hot Rolled Strip and high formability; ASTM, DIN, EN, JIS, and SAE specifications
- Cold Rolled Steel Coil: Recommended for applications where thickness tolerances and surface condition are important, including light-gauge applications; ASTM, DIN, EN, JIS, SAE specifications
- Coated Steel Coil: commercial, forming, deep drawing, extra deep drawing steel and more. Paint and zinc coatings add additional protection to the steel
Value-Added Services & Processing Capabilities
Chesterfield is a value-added processor and steel coild distributor of many types of steel coil. Our metal coil processing and value added services include:
When choosing a supplier of steel for your plant, you want to know that the steel is going to run right! You want what you want. You are looking for a partner, one you can trust, one that will be with you for the long haul, the duration. That’s why Chesterfield.
Industries We Serve
What Is a “Steel Grade”?
Steel is a combination, or an alloy, of both carbon and iron. Different heating and cooling techniques can change the structure and arrangement of the iron and carbon atoms within steel. Additionally, adding other elements can change the mechanical properties of the steel, thus changing how it responds to heating or cooling treatments.
A steel grade is a designation of steel based on its composition and physical properties. There are a number of different grading systems used for steel, such as SAE, ASTM, European Standards (EN), and more. Our steel products and grades are classified by grading system so you can easily shop by the grade most relevant to you. Simply put, a steel grade is a defined chemistry based on specific manufacturing and processing.
Other organizations in other countries have specifications that use different letter and number combinations for the same or similar steel chemistries (SAE, AISI, EN, DIN, JIS, etc.).
ASTM specs are the primary specifications. Automotive, agricultural, and construction industries have their own specific requirements. Most of those requirements are based on ASTM standards, which are denoted by the American Society for Testing and Materials. We work with all of the standards, but for US manufacturers it is generally easier to start with ASTM.
How do I Select the Most Appropriate Steel Grade?
In selecting the most appropriate steel grade for your situation, it is important to consider factors such as:
- Corrosion Resistance
- Recommended uses
All of these factors come into play when picking the best steel for your application. Strength is measured as a force per unit area to stretching (Yield Strength) or breaking (Tensile Strength, in kilo (1000)-pounds per square inch (ksi), or Mega-Pascal (MPa)). 1 ksi = 6.9 MPa.
Formability is how much you can stretch the surface before cracks appear. This is typically measured as the % Elongation. Chesterfield is happy to personally guide you through the selection process. However, should you like to explore on your own, Commercial Steel is a good place to start. It is a low carbon steel that exhibits good strength coupled with formability. It is easy to machine and fabricate and can be securely welded. From there, you can see how improved properties – stronger, more bendable, more resistant to corrosion – will be an even better match for you.
What Causes Steel Defects?
Steel is made by a series of specific processes, beginning with melting the steel. During the molten phase, elements like sulfur are removed and other elements such as manganese, vanadium, and boron may be added. Some of the elements that tend to be removed for one particular type of steel in order to make it more formable, may be then added to another steel to make it stronger. The next step includes the addition of silicon and/or aluminum. These elements keep the oxygen from forming compounds that might melt when the steel is heated for rolling. Sometimes, compounds can remain as microscopic particles, called “inclusions.” Our current steel making practices have reduced the size and frequency of these inclusions.
The liquid, molten steel is next cast to cool and freeze it. Immediately following this it is either rolled while still hot, or completely cooled, and reheated and rolled at a later time. Surface defects that can appear during casting and rolling that could lead to surface cracking are removed. However, the internal inclusions and surface cracks can cause defects when you form the steel to make a final product. We will help you select a steel grade that economically meets the internal and surface requirements for your product.
Services and Resources
Our knowledge and experience give nearly 100% accurate delivery of High Carbon, Low Carbon, Stainless Steel products processed and packaged to your exact specifications.