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Question:

Heat treatment of aluminium tube material

Ask for advice,According to the type of aluminum alloy, Al-Si, Al-Mg, Al-Mg-Si, Al-Mn, Al-Cu, Al-Zn-Mg (T0-T8 heat treatment); if the steel type crystal like austenite, ferrite, Aluminum Alloy have similar crystal like heat treatment, whether similar to the regulation, for advice! Thank you

Answer:

There is no phase change in the process of heating aluminum alloy, so there is no corresponding hard treatment by heat treatment. However, some aluminum parts which are extruded by cold can be softened by heat, but the softening process is more to eliminate the stress without phase change. For these Aluminum Alloy you said, in fact, we often say that the 4XXX series, 6XXX series, 5XXX series aluminum forging, antirust aluminum, 3XXX series, 2XXX series aluminum, aluminum 7XXX series, 7XXX series I've seen can be tempered (just to stress), other if there is no need to do heat treatment, but the aluminum can generally do hard oxidation hardening, but surface hardening, the hardness is not the core.
For these Aluminum Alloy you said, in fact, we often say that the 4XXX series, 6XXX series, 5XXX series aluminum forging, antirust aluminum, 3XXX series, 2XXX series aluminum, aluminum 7XXX series, 7XXX series I've seen can be tempered (just to stress), other if there is no need to do heat treatment, but the aluminum can generally do hard oxidation hardening, but surface hardening, the hardness is not the core.
There is no phase change in the process of heating aluminum alloy, so there is no corresponding hard treatment by heat treatment. However, some aluminum parts which are extruded by cold can be softened by heat, but the softening process is more to eliminate the stress without phase change.

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