10 Things to Consider When Buying cold rolled steel coil for sale for sale

AISI

Stands for American Iron and Steel Institute. The institute serves as the voice of the North American steel industry. AISI numbers categorize metals by alloy type and carbon content, using four digits. The first two digits of an AISI number refer to the alloy type, and the last two digits refer to carbon content.

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ALLOY

A metal made by combining two or more metallic elements. An alloy typically has qualities different from the components used to create it.

ASM

Stands for American Society for Metals. ASM International is the world’s largest association of metal material engineers and scientists. The association connects materials professionals and their organizations to the resources necessary to solve problems, improve outcomes, and advance society.

ASTM

Stands for American Society for Testing and Materials. ASTM International is a not-for-profit organization that develops standards for materials, products, systems, and services. Metal with an ASTM designation meets international standards for quality and regulations.

CUT-TO-LENGTH

This process levels coil into a flat sheet or blank. The service provides better length and width tolerances than sheared products and can improve diagonal tolerances.

DEBURRING

Cutting metals can leave behind burrs, unwanted pieces of material. Deburring is the process of removing these burrs with a tool.

DRAWING

Drawing is a metalworking process that uses tensile forces to stretch metal. As the metal is drawn, it stretches thinner, forming a desired shape and thickness.

DRAWING TEMPERATURE

Drawing is usually done at room temperature, classifying it as a cold working process. However, it may be performed at elevated temperatures during special applications, such as on large wires, rods, or hollow sections, to reduce forces.

ELONGATION

A metal fabricating term that refers to the degree to which a material can be bent, stretched, or compressed before rupturing. A metal’s elongation is a point between tensile strength and yield strength, typically expressed as a percentage of the original length.

GAUGE

The thickness of sheet metal in the USA is commonly specified by a non-linear measure known as its gauge. The larger the gauge number, the thinner the metal.

HEAT LOTS OR HEAT NUMBER

A heat number is an identification number stamped on a material plate to prove it meets industry quality standards, which require materials to be tested by the manufacturer. The heat lot or heat number is used to identify production runs for quality control purposes.

EDGE ROLLING

Edge rolling is the process of adding finishing edges to metal. It forms the edge of a strip to the desired shape beyond that of a standard slit edge.

MIL STD

Stands for Military Standard. This classification establishes uniform engineering and technical requirements for military-unique or substantially modified commercial processes, procedures, practices, and methods. Materials undergo rigorous, exact testing to qualify, equal to the demands of combat use.

NORMALIZING TEMPERATURE

Normalization is a heat treatment that relieves stress on steel to improve ductility and toughness in steels that may harden after the cold working process. During normalization, steel is warmed to a temperature just above its upper critical point. This treatment facilitates later heat treatment operations and produces a more uniform final product.

ROCKWELL SCALE

The Rockwell Scale indicates the hardness of materials. Rockwell hardness numbers are most often used to describe the hardness of metals, although they are also used for some plastics. The scale is based on measuring the depth of the indentation made by pressing a diamond point into a material.

SAE

Stands for Society of Automotive Engineers. SAE International is a global association of engineers and related technical experts in the aerospace, automotive, and commercial-vehicle industries. Materials meeting SAE standards are internationally recognized for safety, quality, and effectiveness.

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SLITTING

Slitting is a precise shearing process. Instead of making cuts at the end of a workpiece like shearing, slitting cuts a wide coil of metal into a number of narrower coils as the main coil is moved through the slitter. During the slitting process, the metal coil passes lengthwise through the slitter’s circular blades.

TEMPER

Temper refers to reheating hardened, normalized, or mechanically worked steel to a temperature below the critical range to soften it and improve impact strength. Tempering results in greater toughness by decreasing an alloy’s hardness.

TENSILE STRENGTH

The maximum stress a material will withstand before fracturing or breaking. The ultimate tensile strength is calculated from the maximum load applied during the test, divided by the original cross-sectional area.

UNS DESIGNATION/NUMBER

Stands for the Unified Numbering System for Metals and Alloys. UNS designation correlates internationally used metal and alloy numbering systems currently administered by societies, trade associations, and individual users and producers of metals and alloys. This system helps avoid confusion caused by using more than one identification number for the same metal or alloy, and the opposite situation of having the same number assigned to different metals or alloys.

YIELD STRENGTH

The amount of stress a material can withstand before causing permanent deformity.

We’re one of Utah’s top steel suppliers at Wasatch Steel, and we’re here to provide you with all the custom steel you need to complete your next project. Steel sheets of all shapes and sizes are some of our most popular products, and we provide them at industry standard quality.

There are dozens of different styles and variations of steel sheets. One of the most common ways to classify them is by the temperature at which they were rolled – cold rolled or hot rolled. Let’s look at the pros and cons of cold rolled steel for your next project.

What is It?

When steel is rolled out to form a coil during its production, this is done at varying degrees of temperature. In all cases where this temperature is at or below room temperature, this is considered cold rolled steel.

Cold rolled steel will be smooth to the touch, strong, and not particularly flexible. It’s generally found in flat, square, or round shapes.

Pros

There are distinct benefits to cold rolled steel:

• Strength: Cold rolled steel is up to 20 percent stronger than typical hot rolled steel. Using heat to roll the steel can weaken it, but keeping it above room temperature holds its structural integrity. This makes it perfect for your biggest and toughest projects.
• Surface finish: Cold rolled steel also looks better than hot rolled steel. It’s the preferred technique for furniture, cars, and other aesthetic areas for this reason, offering a modern look.

Cons

There are some downsides to cold rolled steel for some people:

• Price: Because of its advantages over hot rolled steel, cold rolled steel is more expensive. Also, because cold rolled steel is tougher to manipulate, it takes more time and can cost more to process.
• Width: Shaving down a hot rolling metal sheet is easier due to the temperature, but it can’t be done with cold rolled steel. This means you have to be more careful about measuring width in advance – you won’t have any leeway once you get started.
• Time: The difficulty in manipulating cold rolled steel can make projects take longer to complete than equivalent projects using hot rolled steel.

Want to learn more about cold rolled steel, or any of our steel services? The experts at Wasatch Steel are standing by.

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