Aluminum Track Rating

Aluminum is one of the most used metals in today’s society – Aluminum Track in Rating  it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Alspec Aluminium Catalogue

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Aluminum Extrusions For Glass it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Aluminium Windows

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Aluminium Window Frames For Sale

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Aluminium Frame Company the drawing process is skipped.

Aluminium Windows Cape Town

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Aluminum Track in Rating?

Alspec Aluminium Catalogue

Aluminum is the preferred material for door and window frames due to its inherent structural and aesthetic properties. Doors and windows made of aluminum frames with glass glazing may look the same from a distance but take a closer look and the difference between quality product and one that is fabricated by a local fabricator becomes apparent. If you are investing in doors and windows it pays to buy only quality products.


Seamless integration of hardware with aluminum frame


The looks as well as performance of aluminum windows are dependent on and influenced by the way hardware is integrated into the frame. If the window has hinges then the way hinges are designed and fitted to the frame has a bearing on ease of opening and closing as well as reducing gaps and thereby preventing energy losses. Quality manufacturers design and manufacture their own hardware to go along with windows and doors.


Precision fabrication


Most general fabricators do not work to tight tolerances while fabricating frames from aluminum profiles. There can be gaps between joins and this can look unseemly and if the frame sections are not well aligned, closing and opening them becomes a chore. Quality manufacturers also include thermal breaks and a foam core that provide additional insulation.


Finish


Quality manufacturers offer aluminum in a variety of finishes such as natural anodized finish in various shades, metallic colours, permanent colour fast powder coating and woodgrain foil overlay for a natural look. You can go a step further and choose aluminum frames that have one colour finish for interiors and another on the exterior to match building facades.


Single or double or triple glazing?


When double glazed windows offer so many advantages there is little point in saving some money by choosing single glazing. Double or even triple glazing is better from energy conservation as well as acoustic insulation perspective. Some advanced manufacturers offer gas filled and totally sealed double glazing. You also have the choice of blinds integrated inside the glazing, which makes for a neater appearance and ease of use. When one talks about glazing, it must be kept in mind that glass varies widely. It is recommended to look for windows with low E internal glass and possibly toughened glass so that, in the event the glass breaks, the floor is not littered with glass shards. You can also select glass that is coated to reflect heat and thus reduce energy consumption.


How secure are the aluminum windows?


Quality manufacturers offer windows that conform to British Standards PAS 24:2012. Material, design and manufacture of the windows makes it difficult for would be burglars to force the windows. You should look for multipoint steel locking system and internal glazing for better security.


It pays to invest in world recognized brands offering quality aluminum windows. Windows look perfect from inside and from the outside. They will be easy to operate and you will enjoy their use for years with minimum maintenance. It may cost more initially but a quality aluminum window also adds to the value of your house.

How to Fix an Aluminum Sliding Door

Aluminium Window Frames Details

If you want durability, low maintenance and weather resistance, aluminum railings are just the right metal for you. Look out for the best manufacturers, wholesalers or distributors who can match up your expectations.

Aluminum railings have a long list of benefits to offer for your homes. For all custom applications aluminum is the best metal to be used. Impact resistance, color retention and weather ability in any environment are the best features of aluminum railings you can find. They can be a perfect complement for a decorative porch or deck.

The aluminum railings can achieve any kind of shape to match your home decorations. Aluminum will not rust especially when they are power coated offer long lasting finish with superior protection against the elements and do not splinter or crack. So you need not have to get it painted after every few years unlike steel.

Aluminum railings have minimal shrinkage and expansion characteristics and remain consistent throughout extreme heating and cooling temperatures. If you are considering for other options like wood then you will have to get it treated with pesticides or chemicals. They even splinter or fail completely at times causing injury. Aluminum railings on the other side eliminate all these and let you have a friendly environment eliminating all your health concerns.

There are many aluminum railings Surrey manufacturers in the market who can even create one of your own deck styles by mixing aluminum balusters with another material. For example, it can be combined with wooden or bamboo rails to create an exotic ambience. Amongst numerous other ones, underneath are some significant characteristics of aluminum deck and porch railings and its complements or benefits:

- Interior and exterior guardrails and handrails.

- Clear or encased functional glass, aluminum pickets, aluminum convention panels, or cable cord for infill section options:

  • ADA compliant catch rails
  • Steel embeds and hefty measure components & for strength
  • Tempered glass for security & influence resistance
  • Tough, powder-coated finishes for better climate opposition and hue retention.
  • Water corrosion: Special coatings for opposition to saline water.

Manufacture of Aluminum railings offers every combination of furniture and deck railings to distinguish your deck from others and have the ability to be included in almost all styles.

Alspec Aluminium Catalogue

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Fern Gully Have Aluminum Track Channel List

Aluminum Track Popular

Aluminum is one of the most used metals in today’s society – Aluminum Track in Popular  it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Aluminium Windows Cape Town

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Aluminium Structural Framing it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Aluminium Sections Catalogue

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Aluminium Windows

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Aluminum Extrusion Framing Components the drawing process is skipped.

Aluminium Window Sections Catalogue

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Aluminum Track in Popular?

Aluminium Window Frames Details

Aluminum is one of the most used metals in today's society - it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

The manufacturer will begin by removing the aluminium from deep within the earth's crust (either as bauxite ore or feldspar). Often, the Bayer's method, Wohler's method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, the drawing process is skipped.

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Greenhouse Kit Frames

Aluminium Sections Catalogue

Aluminum doors are once popular in the home building industry. With the changes in architectural taste, however, many people opted for different styles of sliding doors. Nonetheless, even when the interest in this type of door has already declined, it still has various advantages that could not be provided by other types of doors.

For one, aluminum pocket doors are great space savers. They could be used in several instances when space is an issue. For example, a room which could not be fixed with a hinge door could make use of a pocket door. This is the case when there is a permanent obstruction along the pathway where the door swings. Since the door runs along a hidden track and vanishes inside a pocket in the wall, there is no longer a need to open the door fully by swinging. Thus, the door does not require more space before it could be opened. Also, a pocket door could effectively replace a standard door when there is no other way but hide the door inside the walls.

Aluminum sliding doors is also a great alternative to ordinary wood, vinyl or plastic doors. This is because the doors are predicted to capture the future trend in home designing alongside glass and other metals.

There are downsides to using the doors though. For one, these doors could not be used in places where there are extreme temperatures as aluminum tends to adopt to the temperature of its surrounding. This would not help neutralize the heat or the coldness inside a room, for example. Also, aluminum, unlike wood, glass and fiberglass doors, tends not to blend in with most architectural design. For instance, the doors would not work well with Victorian-style inspired homes. They are, however, common among conventional houses where steal panels and other metals are used in decorating the house.

Also, one cannot really play well with colors on the doors. Usually, homeowners have to settle with the metallic look. This doesn't say that the natural aluminum surface is not good. In fact it is. However, for people who are fond of playing with colors, the doors may not be the best choice.

Another drawback to using the doors is that they tend to catch the atmosphere of large kitchens since they are usually associated with the kitchen doors of most restaurants. But again, this may not be as bad at all since many people actually love to create a certain atmosphere in their kitchen that may only be contributed to metals.

A change of look is what a sliding door could give when used in residential homes. In the industrial settings however, they have become the mainstay.

Alspec Aluminium Catalogue

https://ferngully.co.za/list/

Fern Gully Have Aluminum Track Channel List

Aluminum Track Johannesburg

Aluminum is one of the most used metals in today’s society – Aluminum Track in Johannesburg  it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Aluminium Windows

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Aluminum Framing System it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Aluminium Windows Pretoria

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Aluminium Sections Catalogue

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Aluminium Frame the drawing process is skipped.

Aluminium Window Frames Details

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Aluminum Track in Johannesburg?

Aluminium Windows South Africa

Glass doors are a great choice for both homes and businesses, and offer a great many advantages. In this article I'm going to look at specifically what those advantages are, as well as covering possible disadvantages which you should be aware of.

One of the most obvious and appealing benefits of doors made from glass is the fact that they allow light to pass through. For doors which open to the outside there is the benefit of being able to enjoy natural sunlight entering the room. Not only does this sunlight look and feel much more pleasant than artificial light, but it also helps to reduce the need for that artificial lighting, lowering costs as well as representing a greener alternative.

But even in cases where the door is not an exterior one, a glass door still allows light to pass from one room to the other, not only creating a visually more attractive space, but also a more practical one, since there are fewer shadows and darker areas, maximising the efficient use of the room.

One of the possible disadvantages of course with glass is that it does not usually permit privacy. Clearly this is why very few bathrooms have doors made from glass! But there is a way in which you can enjoy the benefits of a glass door being able to allow light to pass through it whilst also enjoying a certain amount of privacy. Frosted glass, or even coloured opaque glass can be used for both partitions and doors to create an attractive feature which also provides the privacy required.

Another benefit of glass as a material for use in doors and partitions is that it is incredibly durable and extremely easy to keep clean. Glass does not rust, or corrode, it is not susceptible to woodworm, and it doesn't collect dust. All that is necessary to keep the glass door or glass partition looking clean and attractive is to give it an occasional wipe with a cloth and some glass cleaner. This is ideal for both businesses and homes.

One of the disadvantages of glass doors is that they are more liable to crack or break if they receive a very sharp knock or heavy blow. However, such a blow would probably cause significant damage to any door, and as they're made of toughened glass, glass doors and partitions are more than tough enough to cope with everyday use, and should not shatter or break revealing sharp edges should a seriously hard knock cause any damage.

Modern digital printing now also enables glass doors to be patterned or to have designs added. This is less useful for homes, but for businesses and commercial properties it provides the opportunity to have company logos or other relevant information included on the glass.

With a choice of colours and many different types of frameless glass doors, including fixed, hinged, sliding and folding systems, there are many benefits worth considering, both for the home and for business environments.

Aluminum Folding Doors - Add Elegance by Choosing Secure Aluminium Doors and Windows for Your Home

Aluminium Windows Cape Town

Aluminum is a non-ferrous metal (which means it will not draw a magnet) that is lightweight. There are several different grades of scrap aluminum, and all of them vary in price. At most scrapyards, aluminum is broken down into the following grades:

Cast Aluminum

Radiators (clean and contaminated)

Extrusions (clean and contaminated)

Wheels (Clean and Chrome Plated)

Siding

Aluminum/Copper Radiators (clean and contaminated)

Old Sheet

Cast aluminum is very brittle and when broken, the inside will appear very grainy. A majority of the cast aluminum that comes across our scale is from auto parts. Transmission housings, engine cylinder heads, and electronic covers are all examples of cast aluminum auto parts. Other miscellaneous items that are made of cast aluminum include BBQ covers, some hot plates and skillets, and some light housings.

Aluminum radiators can be brought to our yard in two forms, contaminated or clean. A clean aluminum radiator must have all tanks, hoses, and steel and plastic removed. The plastic tanks on each end of the radiator will typically contain steel, sometimes however they will contain a tube made of aluminum or brass.

Extrusion is the process of pushing material through a die to give it a particular shape, very much like a Play-Doh spaghetti machine. The most common form of aluminum extrusion we see is window frames, but it is used very often in other framing systems and structural applications. Extrusions are broken down into contaminated and clean grades, with clean extrusion containing no steel, plastic, rubber, or insulation.

Aluminum Wheels come in two varieties, aluminum and chrome plated aluminum. Chrome plated wheels are worth a little less than pure aluminum due to the chrome contamination. Wheels with plastic face covers are also considered chrome plated due to the contamination of plastic and glue. Our listed wheel price assumes wheel weights, valve stems, and center caps are still attached. If these have been removed from your wheels discuss it with our scale operator and he may be able to increase your price.

Aluminum siding also includes gutters, downspouts, and other flat stock aluminum items. To receive the aluminum siding price, the material must not contain steel, Styrofoam, tar, insulation or any other contamination.

Aluminum/copper radiators are found in air conditioning units. They are copper tubes surrounded by aluminum fins. A clean aluminum/copper radiator will contain no steel flanges. If the steel flanges are cut off of a dirty aluminum/copper radiator, the rest of the radiator can be sold as clean and the flanges can be sold as aluminum breakage if they still contain some aluminum and copper.

Old sheet is the lowest grade of scrap aluminum and just about everything that has not been mentioned so far falls into this category. Some common aluminum sheet items include pots and pans, pop cans, lawn chairs, and screens. Siding containing excessive Styrofoam or tar will also be bought as aluminum sheet.

Alspec Aluminium Catalogue

 


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Fern Gully Have Aluminum Track Channel List

Aluminum Track Popular

Aluminum is one of the most used metals in today’s society – Aluminum Track in Popular  it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Aluminium Window Frames Catalogue

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Aluminum Glazing Extrusions it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Aluminium Window Frames For Sale

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Aluminium Windows

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Aluminium Window Frame Extrusions the drawing process is skipped.

Aluminium Window Frames For Sale

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Aluminum Track in Popular?

Aluminium Windows South Africa

Aluminum doors are once popular in the home building industry. With the changes in architectural taste, however, many people opted for different styles of sliding doors. Nonetheless, even when the interest in this type of door has already declined, it still has various advantages that could not be provided by other types of doors.

For one, aluminum pocket doors are great space savers. They could be used in several instances when space is an issue. For example, a room which could not be fixed with a hinge door could make use of a pocket door. This is the case when there is a permanent obstruction along the pathway where the door swings. Since the door runs along a hidden track and vanishes inside a pocket in the wall, there is no longer a need to open the door fully by swinging. Thus, the door does not require more space before it could be opened. Also, a pocket door could effectively replace a standard door when there is no other way but hide the door inside the walls.

Aluminum sliding doors is also a great alternative to ordinary wood, vinyl or plastic doors. This is because the doors are predicted to capture the future trend in home designing alongside glass and other metals.

There are downsides to using the doors though. For one, these doors could not be used in places where there are extreme temperatures as aluminum tends to adopt to the temperature of its surrounding. This would not help neutralize the heat or the coldness inside a room, for example. Also, aluminum, unlike wood, glass and fiberglass doors, tends not to blend in with most architectural design. For instance, the doors would not work well with Victorian-style inspired homes. They are, however, common among conventional houses where steal panels and other metals are used in decorating the house.

Also, one cannot really play well with colors on the doors. Usually, homeowners have to settle with the metallic look. This doesn't say that the natural aluminum surface is not good. In fact it is. However, for people who are fond of playing with colors, the doors may not be the best choice.

Another drawback to using the doors is that they tend to catch the atmosphere of large kitchens since they are usually associated with the kitchen doors of most restaurants. But again, this may not be as bad at all since many people actually love to create a certain atmosphere in their kitchen that may only be contributed to metals.

A change of look is what a sliding door could give when used in residential homes. In the industrial settings however, they have become the mainstay.

How Custom Bi-Fold Doors Can Help You Save Space

Aluminium Window Sections Catalogue

High strength aluminium alloys.

The origin of aluminium alloys in aircraft construction started with the first practical all-metal aircraft in 1915 made by Junkers in Germany, of materials said to be `iron and steel'. Steel presented the advantages of a high modulus of elasticity, high proof stress and high tensile strength. Unfortunately these were accompanied by a high specific gravity, almost three times that of the aluminium alloys and about ten times that of plywood. Aircraft designers during the 1930s were therefore forced to use steel in its thinnest forms. To ensure stability against buckling of the thin plate, intricate shapes for spar sections were devised.

In 1909 Alfred Wilm, in Germany, accidentally discovered that an aluminium alloy containing 3.5 per cent copper, 0.5 per cent magnesium and silicon and iron, as unintended impurities, spontaneously hardened after quenching from about 480°C. The patent rights of this material were acquired by Durener Metallwerke who marketed the alloy under the name Duralumin. For half a century this alloy has been used in the wrought heat-treated, naturally aged condition. The improvements in these properties produced by artificial ageing at a raised temperature of, for example, 175°C, were not exploited in the aircraft industry until about 1934.

In addition to the development of duralumin (first used as a main structural material by Junkers in 1917) three other causes contributed to the replacement of steel by aluminium alloys. These were a better understanding of the process of heat treatment, the introduction of extrusions in a wide range of sections and the use of pure aluminium cladding to provide greater resistance to corrosion. By 1938, three groups of aluminium alloys dominated the field of aircraft construction and, in fact, they retain their importance to the present day. The groups are separated by virtue of their chemical composition, to which they owe their capacity for strengthening under heat treatment.

The first group is contained under the general name duralumin having a typical composition of: 4 per cent copper, 0.5 per cent magnesium, 0.5 per cent manganese, 0.3 per cent silicon, 0.2 per cent iron, with the remainder aluminium. The naturally aged version was covered by Air Ministry Specification DTD 18 issued in 1924, while artificially aged duralumin came under Specification DTD 111 in 1929. DTD 111 provided for slight reductions in 0.1 per cent proof stress and tensile strength.

The second group of aluminium alloys differs from duralumin chiefly by the introduction of 1 to 2 per cent of nickel, a high content of magnesium and possible variations in the amounts of copper, silicon and iron. `Y' alloy, the oldest member of the group, has a typical composition of. 4 per cent copper, 2 per cent nickel, 1.5 cent magnesium, the remainder being aluminium and was covered by Specification DTD 58A issued in 1927. Its most important property was its retention of strength at high temperatures, which meant that it was a particularly suitable material for aero engine pistons. Its use in airframe construction has been of a limited nature only. Research by Rolls-Royce and development by High Duty Alloys Ltd produced the `RR' series of alloys. Based on Y alloy, the RR alloys had some of the nickel replaced by iron and the copper reduced. One of the earliest of these alloys, RR56 had approximately half of the 2 per cent nickel replaced by iron, the copper content reduced from 4 to 2 per cent, and was used for forgings and extrusions in aero engines and airframes.

The third and latest group depends upon the inclusion of zinc and magnesium and their high strength. Covered by Specification DTD 363 issued in 1937, these alloys had a nominal composition: 2.5 per cent copper, 5 per cent zinc, 3 per cent magnesium and up to 1 per cent nickel. In modern versions of this alloy nickel has been eliminated and provision made for the addition of chromium and further amounts of manganese.

Aircraft structural aluminium.

Of the three basic structural materials, namely wood, steel and aluminium alloy, only wood is no longer of significance except in laminates for non-structural bulkheads, floorings and furnishings. Most modern aircraft still rely on modified forms of the high strength aerospace aluminium alloys which were introduced during the early part of the 20th century. Steels are used where high strength, high stiffness and wear resistance are required. Other materials, such as titanium and fibre-reinforced composites first used about 1950, are finding expanding uses in airframe construction.

Aluminium Window Frames Details

 


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Fern Gully Have Aluminum Track Channel List