How Stainless Steel Coil Stock is Used in Manufacturing Operations

Stainless steel coil stock can be an attractive option for manufacturing operations, thanks to its durability and corrosion-resistance. Selecting an alloy composition that suits your manufacturing requirements is vitally important.

316 Stainless Steel Coil is ideal for kitchen essentials and surgical applications due to its superior corrosion resistance. Furthermore, this material boasts exceptional processing performance and weldability for improved welding applications.

Sheet Metal

Stainless steel is one of the most sought-after alloys used to produce parts and products designed to withstand corrosion environments, due to its superior corrosion resistance, superior mechanical properties, low maintenance costs, familiar shiny appearance associated with luxury or high-end items, low costs of production and comparatively lower maintenance requirements. Due to these benefits, it has wide industrial and commercial uses.

304 and 316 grades of stainless steel coil stock are the two most frequently used in sheet metal fabrication. 316 grade is an austenitic chromium-nickel alloy that contains molybdenum to enhance corrosion resistance; it outshines its counterpart 304 variety when exposed to chlorides, while it can prevent pitting corrosion caused by acidic substances such as sulfuric or acetic acids.

These alloys are resistant to temperature variations and retain strength even at elevated temperatures, making them an excellent choice for various uses. Their weldability allows complex shapes to be created easily; additionally, these alloys do not become sensitized when exposed to acidic environments.

Stainless steel can be processed in different ways to meet the unique requirements of manufacturers. For instance, cold rolling can create thinner material that’s easier to work with while hot rolling results in thicker and stronger products. Tempering may be used to achieve various levels of hardness that increase tensile strength while permitting 90deg bends without breaking.

Once stainless steel has been processed, it is rolled into a wide coil known as a mill edge coil and cut into several smaller strips known as slit strip coil or banding for further processing. Once cut to size and shape for custom customer orders, these slit strips can then be cut according to specific customer requests.

When selecting a stainless steel coil stock manufacturer, it’s essential that manufacturers carefully evaluate quality, performance, price, delivery timeframes and service. By taking time to investigate and compare various companies they can ensure they receive great value with top-tier service for their business needs.


Slitting is a fast and accurate method used to cut large rolls or coils of metal into thinner widths, such as stainless steel. Slitting uses rotary blades to shear through material to produce thin strips that can then be wound back up for further processing or distribution. As its speed allows high-speed production lines, slitting has become a critical process.

Stainless steel begins as slabs of metal that are rolled to thinner gauges before being recoiled into wide coils known as Master Coils and then slit down into narrower widths to meet end user specifications. Slitting involves three main steps: uncoiling, slitting with blades and recoiling slit metal back into coils – these must all occur simultaneously to ensure quality and performance standards are met in the final product.

Selecting an experienced and reputable stainless steel slit coil manufacturer can have lasting ramifications on quality and cost. Aim for suppliers with diverse capabilities at reasonable prices that offer comprehensive services like edge conditioning and quality inspection.

Manufacturers may add additional processes to improve both the appearance and performance of their products beyond slitting, such as corrosion-resistant finishes or adding alloys such as nickel, molybdenum or titanium to strengthen and prolong durability and strength of stainless steel products.

Slitting processes can be complicated by various factors, including improper knife clearance or incorrect stripper rings, leading to crossbows, burrs, and other defects in your material. Therefore, it’s essential that you partner with an experienced slitting manufacturer who can help prevent such complications.

Siegal Steel is an ISO 9001:2008-certified stainless steel coil processor and supplier, offering both cold rolled and hot rolled coil in various grades, thicknesses, widths and grades – perfect for kitchen equipment, furnace parts or heat exchangers! Additionally, our stock contains an abundance of corrosion-resistant chromium that provides protection from organic acids, weak mineral acids and atmospheric oxidation.


Rolling stainless steel to create flat products such as sheets and plates requires the hot rolling process, in which large slabs are passed through two sets of work rolls or dies that reduce its thickness. At USSM’s hot rolling operations we utilize both an H-mill and Z-mill that offer different levels of reduction according to customer specifications – one machine has the capacity of cutting material down to 2 inches thick which makes them suitable for many applications.

Cold rolling is an alternative to hot rolling that uses lower temperatures – typically room temperature – to reduce the size of slabs of stainless steel, producing thinner sheets with superior mechanical properties and tighter dimensions tolerances than their hot rolling counterparts.

Cold-rolled stainless steel can be annealed to further increase its corrosion resistance. Bright annealing takes place in an enclosed furnace or ladle that uses shielding gas as its entry and exit points; open annealing exposes metal to air and requires additional chemical processing post annealing, while bright annealed steel has superior corrosion resistance properties.

Slitting is another process stainless steel coil undergoes, cutting the coil into narrow strips with specific width requirements to be used in manufacturing applications. Slitting may be performed to achieve a specific size or standard width such as 24 gauge.

Stainless steel coils can be provided in various surface finishes to meet the needs of different manufacturers and end-users, including durable shot blasted finishes that offer excellent corrosion resistance against saltwater and caustic chemicals, as well as pickled or oiled finishes that provide superior machinability and weldability – an option which is particularly advantageous when manufacturing strong corrosion-resistant coils simultaneously. They may also come equipped with softness levels like semi hard, hardness levels that range between extra hard and full hard.


Stainless steel coil stock is highly durable and corrosion-resistant, making it suitable for many different applications such as appliances, cookware, automotive trim and more. As it’s nonreactive and nontoxic, making it suitable for medical and food service uses too. Selecting the appropriate alloy grade for your application is key – working with an experienced supplier is recommended to help select an ideal alloy grade that matches up perfectly with your unique application needs.

Slitting and cutting of stainless steel coil stock offer various finishing processes, such as polishing, grinding, deburring, and etching, which aim to increase corrosion resistance as well as aesthetic appeal of their final products. Chemical polishing with increasingly fine grits provides this finish.

Finishing techniques such as dry film lube or NKS Supercoat 1000 may also be used to reduce friction between metal and tool during slitting and cutting operations, thus decreasing warping, which leads to lost product quality and efficiency during manufacturing processes. These coatings may be applied directly onto coil surfaces in order to reduce friction.

Coils of stainless steel come in various shapes and sizes, from round to rectangular. Custom stainless steel coils can also be produced to meet specific thickness and width specifications; additionally, some manufacturers offer customized surface finishing finishes for finished product.

Stainless steel coils can be manufactured to fit into almost every industry and manufacturer of slitting and forming equipment can adjust their machines to produce these coils for precise coil forming. Its flexibility makes stainless steel an attractive material choice for various uses.

Stainless steel coil stock can be an economical choice due to its ability to be produced in large volumes at reduced costs, plus it is recyclable – further contributing to environmental protection efforts in its country of manufacture. Selecting an alloy will impact strength, durability, corrosion-resistance and the overall lifecycle cost of your finished product.

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