1A99 ALUMINIUM COIL 0.8MM THICKNESS

                                                                    
1a99-aluminium-coil  belongs to Al-Zn-Mg-Cu superhard aluminum alloy, which has been used in the aircraft industry since the late 1940s and is still widely used in the aviation industry. It is characterized by good plasticity after solid solution treatment, especially good heat treatment strengthening effect, high strength below 150℃, and especially good low temperature strength; Poor welding performance; Stress corrosion cracking tendency; It shall be used by aluminum coating or other protective treatment.

Specification of 1a99-aluminium-coil

The difference between these 1a99-aluminium-coil is thickness. Coil has a thickness of 0.5 mm to 0.6 mm. Aluminum sheet is between 0.25 and 6 mm thick. It is considered aluminum foil when thinner than 0.25 mm.

The ability of stress corrosion cracking resistance can be improved by two-stage aging. In the annealed and hard-quenched state, the plasticity is slightly lower than that of 2A12 in the same state, slightly better than that of 7A04, the static fatigue of the sheet. Notch sensitive, stress corrosion performance is better than 7A04.

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