What Is Carbon Coil/Sheet?

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What Is Carbon Coil/Sheet?

Carbon Coil/Sheet is a type of metal that has a high level of iron mixed into it. It is a magnetic metal that can be cut and shaped for a variety of uses.

This material is produced by removing rust from hot-rolled steel sheet, then washing, brushing, drying, oiling and finally cold-rolling. This creates a higher-quality finished product with better dimensional accuracy in thickness, width and length.


Carbon steel is a material that combines iron and carbon in order to create a stronger, more versatile metal. This combination has transformed the way building materials are fabricated, resulting in superior strength and durability that can withstand the test of time.

When it comes to carbon steel coil, there are two primary options: hot-rolled and cold-rolled. The differences between these types of steel are primarily in how they are processed. Hot-rolled carbon steel is rolled at elevated temperatures from a slab that is more than two inches thick into a strip that will be coiled. This strip is then brought to its approximate finished thickness through the roughing mill and finishing mill before being coiled.

Cold-rolled carbon steel is rolled at normal temperature without heat and then cooled immediately afterward to form a sheet with a thickness that is significantly smaller than hot-rolled carbon steel. It is also more precise in its thickness tolerances and has a smoother surface than hot-rolled carbon steel.

Steel Service Center offers both hot-rolled and cold-rolled carbon steel in coil and plate form. The choice of which one is best for your application depends on your fabrication needs and project specifications. For example, if you need to perform heavy-duty forming or welding, we recommend our ASTM 1011 heavy gauge hot-rolled sheet carbon, structural, high-strength low-alloy and high-strength low-alloy with improved formability grade stock.


Carbon Steel Coils are durable and long-lasting. They can be rolled Carbon Coil/Sheet to a high tensile strength, which allows them to be used in a variety of applications such as construction and manufacturing. They also have a high corrosion resistance, making them ideal for use in harsh environments.

Using cold-rolled carbon sheet in coils can help your business save on the costs of raw materials and labor. The material is available in a wide range of gauges and sizes, so you can choose the perfect option for your project. You can also find a variety of finishes, including galvanized and paint-coated carbon steel sheet.

To ensure the durability of your coils, you should use proper handling and slinging equipment (e.g. C hooks, slings, vertical coil lifters). The use of protective packaging is recommended for all products in coil form, as it can prevent mechanical damage to the steel and increase the usability of the product. For example, tinplate in coils should be packaged with an inner paper layer and an outer hardboard. This will prevent corrosion from the tin surface, and it should be marked with a ‘KEEP DRY’ pictogram and instruction ‘DO NOT UNWRAP UNTIL STEEL REACHES ROOM TEMPERATURE’.

If you’re looking for a reliable supplier of coated and uncoated carbon steel, look no further than American Douglas Metals. Our large inventory of carbon steel coils can be cut and sized for your exact application needs, and our team will work with you to meet your project specifications.

Corrosion Resistance

Corrosion is the natural degradation of metals that can cause damage to wires, cables and equipment. Although there are products that can help curb the corrosion, it is best to prevent it in the first place. The maxim “an ounce of prevention is worth a pound of cure” is certainly true when it comes to corrosion (also known as rust).

Corrosion resistance is the inherent ability of a material or substance to resist degradation caused by oxidation or chemical reactions. It can also be achieved through the use of corrosion-resistant coatings, chemicals or other materials that can provide temporary protection.

All metals corrode, but some corrode more rapidly than others. The corrosion rate is determined by the concentration of ions, their reaction kinetics and the temperature at which they are exposed.

Some carbon steels, especially those with high amounts of silicon and chromium, exhibit exceptional corrosion resistance. These alloys form a tough oxide layer on their surface that prevents oxygen from reaching the iron and creating rust/iron oxide. This layer is both passive — a process known as passivation — and self-healing.

Other types of carbon steel, such as those with lower carbon content and added carbon “getters” like titanium and niobium, require special heat treatment after welding to avoid the phenomenon known as knifeline attack. In these instances, corrosion occurs within a very narrow region adjacent to the weld, but can still eat through the structure and cause stress fractures.


Carbon steel is a metal alloy that melds iron with carbon. The result is a versatile material that transcends the limitations of pure steel through its exceptional strength, durability, and adaptability. Its versatility makes it essential to a wide range of applications and is especially useful for projects that require a high level of strength, endurance, and adaptability.

The weldability of carbon steel varies according to the amount of carbon contained in the metal. A higher amount of carbon will decrease the plasticity and ductility of the metal, which will affect its welding capabilities. The amount of carbon in the metal also influences its corrosion resistance. A higher amount of carbon will decrease the ability of the steel to resist air corrosion, which can lead to rusting.

Weldability of carbon steel can be galvanized steel supplier improved by using an arc with a low diffusable hydrogen content and by using a filler metal with a lower strength than the base metal. Welding carbon steels with an arc requires a soft anneal to prevent cracking during the welding process.

During soft annealing, the metal is heated to approximately 800 degC (1472 degF). It then cools at a rate of 10 degC per hour until it reaches room temperature. During this process, the material undergoes significant metallurgical changes to transform it from austenite into martensite. The soft annealing will also help to improve the weldability of the metal.

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