Aluminum circles for cookware

It's common knowledge that aluminum has supplanted other metals such as iron, steel etc. in a wide range of industries. This can primarily be attributed to a variety of reasons, chief amongst which would be high strength to weight ratio, inexpensive cost etc. As like many other sectors, the aforementioned fact is also true for the cooking ware sector. The biggest and most established brands in the cookware sector have been preferring aluminum to manufacture their products for many years now, with aluminum circles being the most preferred. It won't be an exaggeration to say that aluminum circles are perhaps the most essential and widely used material in the cooking ware sector.

What are aluminum circles ?

As the name suggests, the circles are made from aluminum, with the manufacturing process being; after aluminum is reduced to the required thickness through the cold rolling process ( done after the customary hot rolling process ), the aluminum coil is then made to go through a press. This passing through a specifically built press ensures that the circles are sheared off in the requisite diameter. The final process is the annealing process, that gives the circles certain mechanical properties, making them ideal for use in a whole host of sectors.

Features because of which aluminum circles are so popular in the cookware sector :-

• The lightweight nature of aluminum allows the manufacturing of a very manageable product range
• The aluminum circles are resistant to corrosion and abrasion
• Moreover, they are also resistant to moisture, chips and winding
• One important attribute of these circles which many people don't know about is that since aluminum distributes heat over it's entire surface area, this ensures proper cooking of food delicacies, with the taste and flavor being retained
• A majority of aluminum circles can also be easily recycled.
• These circles do not loose their luster for many years and are easy to maintain, two features that are of great benefit in the cookware sector

Attributes aluminum circles must have for them to be used in the cookware sector :-

• The aluminum circles should be perfectly flat and separated, i.e – they should not be stuck with each other, making their separation for use difficult
• These should be designed in such a way that makes them perfectly suited for automated supply systems used in production lines. This is necessary to avoid scenarios such as slowing down of the production line
• The aluminum circles that are to be used in the cookware sector should have the requisite mechanical properties that ensure they can be put into specific shapes generally required for cookware products
• It's known that cooking ware products after manufacturing go through a wide range of processes that gives them properties like anti stick etc., the aluminum circles should have sufficient tolerance to all such processes.

Cold Rolled Aluminum Circle

In various industrial applications of today, cold rolled aluminum circles are increasingly being preferred over hot rolled ones. This can be primarily attributed to cold rolled aluminum circles having comparatively closer dimensional tolerances and the wide range of surface finish options which they provide. For the uninitiated, cold rolled aluminum can simply be termed as hot rolled aluminum that has had further processing done on it in cold reduction mills, where it is cooled ( generally at room temperatures) and afterward undergoes annealing and tempers rolling. Cold rolled aluminum circles are typically ideal for technically precise applications or places where aesthetics are essential.

KCO Aluminium LLP is a West Bengal, India based organization that is engaged in manufacturing and supplying of a wide range of aluminum and it's allied products. The organization's product range comprises of aluminum sheets, aluminum utensils, aluminum cookware, aluminum discs and many more. Established in the year 1999, the company has a diverse clientele spread across the vast swathes of India. KCO Aluminium LLP is universally respected for the emphasis it puts on always maintaining product quality.

How to identify cold rolled aluminum circles ?

• Cold rolled aluminum circles generally have smoother and more finished surfaces
• These have a much better concentric uniformity as compared to hot rolled aluminum circles
• These are comparatively smaller than their hot rolled counterparts
• Moreover, cold rolled aluminum circles are also harder than hot rolled ones
• These are commonly used in kitchen utensils, cookware, motorcycle exhaust pipes and many more

Types of conditions cold rolled aluminum circles are available in :-

With reduction in thickness as the main parameter, cold rolled aluminum circles are available in following conditions :

• Full hard
• Half hard
• Quarter hard
• Skin rolled

Features of cold rolled aluminum circles :-

• These are resistant to moisture and UV rays
• Also resistant to corrosion, abrasion, chips and winding
• These have optimal tolerance to weathering, i.e – no negative changes in property even in extreme weather conditions
• Their light weight and aesthetically pleasing look makes them ideal for use as utensils in various hotels, restaurants and many more
• Cold rolled aluminum circles have high ductility and malleability

Difference between hot rolling & cold rolling :-

As mentioned above, cold rolling can simply be termed as hot rolling plus further processing. The initial methods such as roll pressing at higher temperatures, running the metal through a series of compression rollers etc. are the same for both hot rolling and cold rolling processes. Simply put, if the manufacturer wants hot rolled metal then after the aforementioned steps, the metal is cooled down and afterwards is fit for use. If the manufacturer wants cold rolled metal, then after the metal cools down, it is rolled one more time. Although this extra rolling makes cold rolled metals comparatively expensive, yet these have some advantages over hot rolled metals, many of which are mentioned above.

Aluminum and its Allied Products

Aluminum and its allied products are widely used across various industries. Owing to several beneficial attributes ( with the biggest being their lightweight nature), these have even replaced metals such as steel, iron etc. as the primary structural metal of aircraft, die casting products etc. In fact products such as aluminum sheet metal coils, aluminum round disc are an essential part of different industries and are widely used to manufacture products such as benches for public seating in parks, window frames etc. It won't be wrong to say that the usage of aluminum and allied products is only expected to increase in future and based on current trends, these might even become the most commonly used products in industrial applications.

KCO Aluminium LLP is a West Bengal, India based organization that is engaged in manufacturing and supplying of aluminum and its allied products. Its product range comprises of aluminum utensils, aluminum coils, aluminum chequered sheets, roofing sheets and coils and many more. Since establishment in the year 1999, the firm has been growing steadily, with its products being acclaimed across India and overseas.

Application areas of aluminum and its allied products :-

• Automobile sector
• Aeronautical sector
• Marine engineering sector
• Electrical and electronic industries
• Food processing industry
• Construction industry
• Entertainment sector

Features of aluminum and its allied products :-

• These are light in weight and have a very low density
• These are resistant to corrosion and abrasion
• Aluminum and its allied products are an excellent heat and electricity conductor
• These are excellent reflectors of visible light, a property that allows for their usage in reflectors
• These are also resistant to tarnishing, chips and also winding
• Aluminum and its allied products are fully recyclable

Some facts about aluminum and its allied products :-

• For manufacturing these products, aluminum is always alloyed with metals such as copper, zinc etc. for improving their overall mechanical properties.
• Since aluminum is easy to work into new shapes, products requiring inventive designs and shapes are made from aluminum.
• The luster of aluminum and its allied products ensure minimal cleaning requirements and eye catching look, a virtue that makes these perfectly suited for products that are bound to be used outside homes, in public places etc.
• Aluminum and its allied products have low toxicity, thus ensuring no health concerns for people working with or nearby them.

Aluminum Foils

Everyone of us would recognize aluminum foils, with probably the image coming to our minds when hearing the word being the material used to pack food, especially chapatis. Commonly also known as tin foils, these are made from thin metal aluminum leaves having thicknesses less than 0.2 mm, with the foils used in households ranging from 0.016 to 0.024 mm in thickness. Apart from being used for food packaging, these foils are sometimes also laminated to various materials such as plastics, paper etc. for some specific purposes. It won't be an exaggeration to state that aluminum foils are one of the most widely used materials today with applications in various sectors.


KCO Aluminum LLP is a widely acclaimed importer and exporter of non ferrous metals. Established in the year 1999, its products such as aluminum foils, aluminum circles, roofing sheets and coils, aluminum foil stock etc. are the preferred choice for users across India and overseas. Owing to the firm's emphasis on R & D, its able to constantly improve upon its existing product range, fulfilling the expectations of its diverse clientele.


Evolution of Aluminum Foils :-

Foils have been a part of the day to day life of humans for many centuries, with foils made from a thin leaf of tin being very popular in the 19th century. In the year 1910, the first aluminum foil rolling plant became functional in Switzerland. Soon enough, the advantages accorded by aluminum foils started getting noticed by various industries. In the year 1911, these were used by an organization named tobler for the purpose of wrapping its chocolate bars. Similarly, next year in 1912, Maggi also began using these foils for the purpose of packing soups and stocking cubes. This trend continued to grow and over the next decade, tin foils were supplanted by aluminum foils in all major sectors in a majority of countries.


Attributes of Aluminum Foils :-

• These foils are impermeable to oxygen and water.
• A specific distinguishing feature of aluminum foils is that these have a shiny side and also a matte side.
• These are light in weight and yet have the requisite durability.
• These provide perfect protection and preservation of product characteristics.
• Aluminum foils are highly malleable, with their shape making them very space efficient in storage and display.

Application areas of Aluminum Foils :-

• These are used in cooking. To be more specific, the foils are perfect for barbecuing delicate food items like vegetables, mushrooms etc.
• Aluminum foils are used to provide electromagnetic shielding.
• Another area of use of these foils is geochemical sampling, i.e – for preserving rock samples taken from an excavation site.
• These are also used in ribbon microphones.
• One off the cuff usage of aluminum foils is as an accessory in hookah smoking.

Aluminum Rolled Products

Its common knowledge that aluminum is one of the most abundant metal on planet Earth. Moreover, due to various beneficial attributes such as being light in weight and an ability to resist corrosion, it is also one of the most widely used metals in industries such as aerospace, transportation etc. A large part of the use of aluminum comprises of aluminum rolled products such as coil, sheets and plates. Along with being used in the aforementioned industries, these are also used to make cookware and various other daily use items.

KCO Aluminum LLP is a West Bengal, India based organization that is engaged in manufacturing, supplying and Exporting of Aluminum Rolled Products such as utensils. Our aluminum utensils are extensively used for serving food and drinks in hotels, restaurants, canteens etc. Since incorporation in the year 1999, the company has continued to scale new heights, penetrating into major markets, with more than satisfactory increase in their annual sales on an year to year basis.


History of Aluminum Rolled Products :-

Aluminum is a relatively new entry into the metal world as compared to iron and steel. It was discovered in the year 1807, isolated in the year 1825 and commercialized after the invention of Hall-Heroult production process in the year 1886. So by the time aluminum was commercialized, people had several hundred years of experience in metal rolling. Through references, it has been ascertained that the first aluminum rolled product was manufactured in the year 1890, it was a stew pan. The use of aluminum rolled products kept on growing and by 1903, about one million kg of these products was used annually. Since then, the growth in the usage of aluminum rolled products has been consistent, with these being the most used today after iron and steel rolled products. This growth has also been fueled by technological advances that has resulted in the increase in quality and efficiency of the rolling process.


Manufacturing process of Aluminum Rolled Products :-

To manufacture aluminum rolled products, the aluminum metal stock is passed through one or more pairs of rolls. This is done to reduce the metal thickness and also to make the thickness uniform. One noteworthy thing here is that if during the rolling process, the temperature of aluminum is above it's recrystallization temperature, then it can be classified as hot rolling. Similarly, if the temperature is below the crystallization temperature, then it is termed as cold rolling.


As for rolling processes used to manufacture these products, they are of various types, some of which are :-

• Ring rolling process.
• Roll bending process.
• Roll forming process.
• Profile rolling process.
• Controlled rolling process.

Attributes of Aluminum Rolled Products :-

• Cryo-tolerant – Doesn't become brittle at very low (cryogenic) temperatures.
• Non toxic and non absorbent.
• Excellent heat conducting properties.
• Highly reflective.
• Optimum resistance to abrasion.