In the application field, the construction industry is still the main Application field of
aluminum profile , far exceeding the consumption of other fields.
Consumption is increasing year by year. In recent years, the consumption of aluminum profiles in China has grown rapidly, with the largest growth in the construction industry.
Use of aluminum alloy in the building
(1) can reduce the weight of the building structure;
(2) Reduce transportation costs and building installation’s workload
(3) Improve the service life of the structure;
(4) Can improve conditions of use in high seismic intensity area
(5) Expand the scope of use of the activity structure;
(6) Improve the conditions of use of the house;
(7) Guarantee high construction quality;
(8) Improve the reliability of structural work in low temperature.
Therefore, domestic and foreign architects are increasingly using aluminum alloy as a building structural material.
Aluminum alloy extruded materials are mainly used in the construction industry: various facilities and building structures, roofing and wall decorations and structures such as maintenance structures, skeletons, doors and windows, ceilings, veneers, sunshades; straddle structures for roads, pedestrians and railway bridges,guardrails, especially detachable bridges on rivers where large ships pass ; high bridges in city and crossroads in downtown ; construction scaffolding, pedals and cement prefabricated form-work.
6061 and 6063 aluminum-magnesium-silicon alloys are widely used in the contemporary construction industry. According to statistics, 6 series Alloy profiles for doors, windows, and glass curtain walls account for 70% of the alloy profiles in foreign country. In addition, aluminum alloys for building aluminum structures are:aluminum-magnesium, aluminum-manganese,aluminum-copper-magnesium-manganese,aluminum-magnesium-silicon-copper, aluminum-zinc-magnesium-copper, etc.
The common aluminum alloy grades and temper of building aluminum structures are shown in Table as below.
|
Structure |
Alloy properties |
Alloy and Temper |
|
Strength |
Corrosion Resistance |
Maintenance facility
|
low |
high |
1035、1200、3A21、5A02M |
|
medium |
high |
6061T6、6063T5、3A21M、5A02M |
|
Semi-bearing structure |
low |
high |
3A21M、5A02M 、6A02T4 |
|
medium |
high |
3A21M、5A02M 、6A02T6、、6A02T4
6A02-1T4、6A02-2T4 |
|
high |
high |
5A05M、5A06M、6A02-1T6
6A02-2T6 |
|
Bearing structure |
medium |
medium,high |
2A11T4、5A05M、5A06M、
6A02T6、2A14T6、6A02-1T6 |
|
high |
medium, high |
2A14T6、6A02-2T6、
2A14T4、7A04T6、2A12T4 |
