COMPANY PROFILE

CF ALUMINIUM EXTRUSION SDN BHD is a wholly-owned subsidiary of CFT which produces extrusions. CFAE operates from its own premises in the town of Klang, Selangor Darul Ehsan and sells its products mainly via CFT’s group of companies and third party customers. With increase of new customer base and stringent measurement of credit control and improved efficiency in management, CFAE has been one of the main contributors to the profit of the CFB Group.

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ALUMINIUM ALLOYS

AA 6063 AA 6061 AA 6082, A 6005A (Tempers F, T4, T5 & T6)

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FINISH & TEMPER

Mill Finish Natural aluminium finish off the Extrusion Press. Natural Anodised Finish Aluminium is a corrosion resistant metal due to a film of aluminium oxide which occurs naturally on its surface, Anodising is an applied finish by an electro-chemical process that thickens the natural oxide film on the aluminium and imparts to the metal surfaces the extreme hardness , corrosion and wear resistance of the oxide." CFA’s natural anodized finish conforms to British Standar 1615 : 1972 and is available in nominal film thickness of 10, 15, 20 and 25 microns. Coloured Anoised Finish CFA Aluminium extrusions can be treated in durable inorganic colours to yield a finish which is permanent lightfast, abrasion and corrosion resistant and unchanging in colour intensity. The finish available in bronze and black anodise. In the colour process, inorganic metal particles are deposited electrolytically in the pores of a clear anodic film. Electrolytic deposition results in the colour particles being fixed at the very base of the pores, allowing virtually the full thickness of the anodic film to protect them. The extrusion is sealed in deionised water which closes off the pores in the anodic film and permanently seals in the colour particles. CFA's aluminium is available in Medium and Dark Bronze, Black anodise in nominal film thickness of 15, 20 and 25 microns. Temper Designation   F As fabricated i.e there is no special control over the temper of such material and it is normally in the as-extruded condition. No mechanical property limits are specified. T Thermally treated to produce stable tempers. T1 Cobled from an elevated temperature shaping process and naturally aged to a substantially stable condition. T4 Solution heat-treated and naturally aged to a substantially stable condition. These products are normally water quenched at the press. T5 Aircooled from the extrusion temperature and artificially aged to improve mechanical properties. T6 Solution heat-treated and then artificially aged. These products are water quenched at the press.

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ALLOY SPECIFICATIONS

ALLOY AA 6061    ALLOY AA 6063

ALLOY AA 6061 Description of Alloy Alloy 6061 is a well proven medium strength structural alloy that satisfies the requirements of a number of specifications. In extruded shapes it is treated as an equal alternative to AA 6351 and has a long history in furniture, handrails, transportation, industrial equipment and general structures. Characteristic   Welding Alloy 6061 is readily welded by the MIG and TIG processes. Recommended filler alloy in 5356. Rivets Alloy 6053 Machining Readily machined in all tempers given Forming All tempers may be formed, the softer tempers accepting more severe forming Corrosion Excellent resistance to the atmosphere, fresh water, many soils. Fair resistance to seawater. Good general corrosion resistance in structural application. Temper Available Extruded shapes – T5, T6 Chemical Composition Alloy 6061 is a heated-treatable aluminium-magnesium-silicon alloy.     % weight   % weight Copper 0.15 – 0.40 Zinc 0.25 Iron 0.70 Chromium 0.04 – 0.35 Magnesium 0.80 – 1.20 Other, each 0.05 Manganese 0.15 Other, total 0.15 Silicon 0.40 – 0.80     Titanium 0.15 Aluminium Remainder Mechanical Properties       Ultimate Strength Tensile (MPa) 0.2% Stress Proof (MPa) Elongations (%) Hardness (Vickers) Temper  Thickness(m) Min. Typical Min. Max. Min. Typical Typical T4 ALL 180 240 110 145 16 21 75 T6 Up to 6.3 260 310 240 275 8 15 105   Over 6.3 260 310 240 275 10 15   Physical Properties   Density 2.70g/cm³ Modulus of Elasticity 69000N/mm² Modulus of Rigidity 26000N/ mm² Melting Range 580° - 650°C Specific Heat between 0° - 100°C 920 J/kg.K Coefficient of Linear Expansion between 20° - 100°C 240 x 10-6/K Thermal Conductivity at 25°C 1.67w/CM.k Electrical Resistivity at 20°C 0.001μΩm TOP ALLOY AA 6063 Equivalent to BS H9 Description of Alloy Alloy 6063 provides a good combination of extrudability and mechanical properties. Its excellent extrudability allows thin-walled hollow shapes, intricate solids and other shapes that are usually difficult to extrude with satisfactory finish, to be produced more easily. It responds well to polishing, chemical brightening, anodizing and dyeing. Characteristic   Welding Alloy 6061 is readily welded by the MIG and TIG processes. Recommended filler alloy in 5356. Rivets Alloy 6053 Machining Readily machined in all tempers given Forming All tempers may be formed, the softer tempers accepting more severe forming Corrosion Excellent resistance to the atmosphere. Particularly suitable for anodizing for architectural applications. Temper Available Extruded shapes – T1, T4, T5, T6 Chemical Composition Alloy 6061 is a heated-treatable aluminium-magnesium-silicon alloy.     % weight   % weight Copper 0.10 Zinc 0.10 Iron 0.35 Chromium 0.10 Magnesium 0.45 – 0.95 Other, each 0.05 Manganese 0.10 Other, total 0.15 Silicon 0.20 – 0.60     Titanium 0.10 Aluminium Remainder Mechanical Properties Pyhsical Properties Density 2.70g x 10-6kg/mm Melting Range 615° - 655° Specific Heat between 0° - 100°C 879 J/kg.K Coefficient of Linear Expansion between 20° - 100°C 580° - 650°C Thermal Conductivity at 25°C 202 W/m.K Electrical Resistivity at 20°C 0.033μΩm -6 Modulus of Elasicity 69 x 103 Mpa TOP

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