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T451 Temper This temper is achieved by solution heat treatment, followed by stretch straightening, then natural aging until the material reaches a stable condition. Stretch straightening relieves residual stress generated after solution treatment and improves the dimensional accuracy of the material. The T451 temper is widely used for  aluminum alloy sheets and extrusions that demand high dimensional precision, such as aluminum extrusion profile for building curtain wall,which require excellent flatness and dimensional stability. T4510 Temper Material in T4510 temper undergoes solution heat treatment followed by stretch straightening with elongation controlled within a specified range, then natural aging until the material reaches a mostly stable condition. It is similar to T451 temper but features tighter, more precise control over stretch elongation to achieve a targeted residual stress distribution and mechanical properties.  This temper is commonly applied to Industrial aluminum profile for aerospace components with stringent requirements on residual stress and dimensional accuracy, such as beam structural parts for aircraft fuselages. 

T39 temper is achieved by solution heat treatment followed by cold working, then a combination of stepped aging and cryogenic treatment. Stepped aging enables more precise control over the internal microstructure of aluminium profile, while cryogenic treatment further elevates the hardness and tensile strength of the aluminum extrusion profile material.   The T39 temper is specified for precision components with extremely strict requirements for hardness, strength and dimensional stability, such as aluminum alloy support structural parts used in high-end optical instruments. T42 temper is applied to aluminum alloy products with ambiguous temper designations from manufacturing. This treatment delivers mechanical properties comparable to the T4 temper. It is widely used for reprocessing Industrial Aluminum Profile of unknown origin or unclear heat treatment status, to guarantee their performance meets specified requirements.  

T36 Temper: Solution heat-treated, cold worked, then subjected to intensified natural aging. Compared with conventional natural aging, intensified natural aging accelerates the aging cycle of aluminium profile by regulating ambient conditions and other parameters, delivering higher mechanical strength to the material. The T36 temper is suitable for scenarios that demand high strength and have constrained production lead times, where lengthy artificial aging is not feasible. Typical uses include the rapid fabrication of large aluminum alloy structural components.   T37 Temper: Solution heat treatment is followed by cold working, then overaging treatment, and a final light cold working operation. This elaborate processing route grants the aluminum extrusion profile high strength while substantially boosting its resistance to stress corrosion cracking (SCC). The final light cold working also optimizes the surface finish. T37 tempered material is applied to Industrial aluminum profile that operate in harsh environments with stringent requirements for both mechanical strength and corrosion resistance. Typical examples include aluminum alloy equipment components used on offshore oil drilling platforms.

T352 This temper is produced by solution heat treatment, followed by compression deformation to introduce a specified amount of permanent set, then natural aging. Compression deformation modifies the internal microstructure of the aluminum extrusion profile, and subsequent natural aging stabilizes its mechanical properties. Aluminum alloy in T352 temper delivers high tensile strength and excellent fatigue resistance. It is widely adopted for components subject to shock and vibrational loads. A typical application is connecting rods used in automotive suspension systems, which are required to maintain reliable performance under complex loading conditions. This alloy is commonly utilized in the fabrication of Industrial Aluminum Profile. T354 Temper After solution heat treatment, the alloy undergoes designated thermomechanical processing (with precise control over temperature, strain and strain rate), followed by natural aging until its properties reach a substantially stable state. This accurately regulated thermomechanical treatment enables the aluminium profile to develop a unique internal microstructure and customized mechanical properties. The T354 temper is specified for high-end applications with extremely stringent material requirements, such as aero-engine blades, which must operate reliably under extreme high-speed rotating conditions involving high temperature and high pressure.  

T31 Temper: Solution heat-treated, cold worked, then subjected to incomplete natural aging. Incomplete natural aging means the alloy does not achieve full strengthening from natural aging. Aluminum extrusion profile in T31 temper retain decent ductility while gaining higher strength via cold working and partial natural aging than T3 temper, yet their strength remains lower than T8.  This grade is widely used for aluminum extrusions requiring moderate strength plus sufficient ductility for subsequent fabrication, such as aluminum alloy tubes meant for secondary bending operations. Compared with T5-temper aluminum commonly used for aluminium profiles window and door, T31 alloy features superior ductility. T3510 Temper: After solution heat treatment, the alloy is stretch-straightened, followed by cold working, and finally naturally aged until properties stabilize with controlled residual stress retained. Stretch straightening improves the dimensional accuracy of aluminum alloy; subsequent cold working further strengthens the material, while the remaining residual stress partially impacts aluminium profile performance. This temper is applied to components requiring strict dimensional precision and high mechanical strength, where residual stress is necessary to fit specific service conditions, such as aerospace structural parts subjected to alternating loads.  

Artificial aging is performed right after solution heat treatment. This process endows aluminum extrusion profile with superior strength. T6 tempered aluminum alloy is widely used in scenarios demanding extreme strength, such as automotive engine components that bear heavy pressure and loads. Aluminum alloy in this temper is commonly used for manufacturing high-end aluminium profiles window and door. T7 Temper Overaging is applied after solution heat treatment. This process slightly reduces alloy strength, yet greatly enhances the resistance of aluminium profile against stress corrosion cracking.  T7 tempered aluminum alloy is commonly used for products serving harsh environments, such as construction materials in coastal areas that require superior corrosion resistance. Aluminum alloy of T8 temper is commonly used for products requiring high strength and precision, such as housings of high-end electronic devices. It offers sufficient strength to protect internal components while ensuring precise dimensions. The T9 treatment boosts strength and achieves better control over surface quality and dimensional accuracy. This alloy is widely applied to manufacture precision parts with stringent requirements on surface finish and dimensional tolerance. In automotive manufacturing, critical components such as suspension parts adopt T10 tempered aluminum alloy. It can withstand greater pressure and impact force to ensure driving safety.

The T1 temper is defined as: cooled from an elevated-temperature forming process, then naturally aged to a substantially stable condition. This temper is used in applications where strength requirements are not high but production efficiency is a priority. Since no additional artificial aging treatment is required, the production cycle is relatively short — for example, in common aluminium profiles window and door frame. T2 temper, cooled after high-temperature forming, then naturally aged to a stable state following cold working. Cold working improves the strength of aluminum alloy while retaining decent ductility. It is widely applied to products requiring balanced strength and formability, such as certain automotive interior parts. T3 temper,the alloy undergoes cold working after solution heat treatment, followed by natural aging until its properties become basically stable. Solution heat treatment lays a solid foundation for aluminum alloy performance. Subsequent cold working further strengthens the aluminium profile, and final natural aging stabilizes overall properties. Aluminum alloy in this temper boasts high strength and good ductility. It is commonly used for high-strength and high-toughness components in aerospace applications, such as outer aircraft wing panels. T4 Temper,Natural aging is conducted after solution heat treatment until the material reaches a basically stable state. This is a widely adopted temper. Solution treatment rearranges the atomic structure of aluminum alloy, and natural aging gradually stabilizes its properties. Alloy in T4 temper delivers favorable overall performance, especially excellent ductility and corrosion resistance. It is commonly used for automotive exterior parts. The material can be easily shaped into diverse forms while maintaining satisfactory corrosion resistance. T5 Temper,cooled from high-temperature forming process, then artificially aged.Aluminum alloy of T5 temper features high strength yet slightly lower ductility compared with T4.It is widely used for aluminum extrusion profile in construction, such as aluminum alloy doors and windows, which can provide sufficient structural supporting strength.  

Aluminum extrusion profile , thanks to their outstanding performance, occupy a pivotal position in many industries such as aerospace, automotive manufacturing,aluminium profiles window and door, and electronic equipment. Temper designations for aluminum alloys represent different material conditions of aluminium profile. Below we will explain in detail the meanings of aluminum alloy heat treatment temper codes from T0 to T10, as well as other common aluminum alloy temper designations. First, it is important to understand that aluminum alloys can undergo remarkable property changes through heat treatment processes. Different heat treatment procedures give aluminum alloys unique microstructures and mechanical properties. These differences are reflected by specific temper designations, among which the series starting with the letter T are the most commonly used — this is the T temper system we will explore in depth. Aluminum alloy in the T0 temper is defined as: after solution heat treatment, followed by natural aging and then cold working.  Aluminum alloy under T0 temper features good ductility. For processes with high forming requirements — such as manufacturing thin-walled parts with complex shapes — it can be easily processed into the desired profile.

Industrial folding doors are mainly made of high-strength aluminum extrusion profile  combined with premium hardware fittings. Structurally, they consist of door leaves, door frames, tracks, hardware accessories and other components. Multiple door panels are connected by hinges to achieve the folding function. Aluminium profile serve as the main material for folding doors. Thanks to these material and structural features, aluminum alloy folding doors deliver excellent performance including light weight, high strength, heat insulation, sound insulation and corrosion resistance. When selecting aluminium profiles window and door, you need to make your choice based on your actual usage environment. Whether it is folding doors, sliding doors or swing doors, each type of aluminum alloy door and window has its own characteristics. You should take a variety of factors into consideration by combining the features of each style with the application scenario. Only in this way can we better highlight the practicality and decorative functions of aluminum alloy doors and windows. The application of aluminum alloy doors and windows also plays an important role in establishing the spatial layout between indoor and outdoor areas.  

Aluminum alloy PT doors and folding doors each have their own advantages and disadvantages in terms of stability, which largely depends on the application scenario and material quality.As for the stability characteristics of PT doors: A PT door is a sliding door system, also known as a translation door. It is made of aluminum extrusion profile and tempered glass. PT doors feature both sliding and side-opening functions. They are space-saving, low in noise, and highly durable. With no floor track design, PT doors reduce the weight of door panels, while improving durability and load-bearing capacity, making them ideal for space-limited application environments. When it comes to the stability characteristics of folding doors, each door leaf can be folded together to save space. The stability of a folding door depends on its structural design and material weight. High-quality folding doors are normally constructed with aluminium profile and premium hardware accessories, maintaining stable performance even with frequent daily use. When selecting aluminium profiles window and door, you should choose between PT doors and folding doors according to your actual application scenarios and usage requirements.

A folding door is a door system consisting of multiple door panels connected by rails and hinges, which can be folded open in one or both directions. The door panels can be opened or closed using either bottom load-bearing rails or top-hung suspension rails. Differences between folding doors and sliding doors: Building on the design of sliding doors, folding doors incorporate opening and closing mechanisms. When pulled open by external force, these mechanisms, together with top and bottom pivots, allow the door to fold open. Folding doors enhance coordination between interior and exterior spaces, improve a home’s openness and permeability, and create an unlimited extension of outdoor space, with flexible opening configurations available. Like sliding doors, folding doors mainly consist of top-hung rails, rollers, hinges and other high-quality hardware components. When assembled with aluminum extrusion profile, they form a highly competitive product. Folding doors come in many types, classified by factors such as opening style and material. We will focus on bottom-rail load-bearing and top-hung load-bearing types. Which load-bearing system to choose depends on your actual situation. Bottom-rail folding doors offer greater stability, with a more balanced center of gravity when sliding, making them less prone to shaking. In addition, they are relatively easy to install and have no special requirements for surrounding walls or door beams. In contrast, top-hung folding doors require careful consideration of weight distribution and are more complex to install. Furthermore, folding doors with a bottom-rail load-bearing design tend to trap dust and are difficult to clean, while top-hung models are much easier to maintain. Bottom-rail folding doors follow better mechanical principles, offering higher durability and a longer service life. Top-hung systems place greater weight-bearing pressure on the track, and their maintenance is more complicated. In addition, top-hung folding doors require more hardware components and demand higher performance standards for such parts. If you choose a top-hung design, it is recommended to leave a clearance of 10–20 millimeters during installation to avoid aluminium profile scratching the wall. When selecting aluminium profiles window and door the final decision should be made based on your actual usage environment.  

Thanks to their durability and aesthetic appeal,aluminium profiles window and door have become common products in our homes. Aluminum alloy folding doors, in particular, are manufactured using high-quality aluminum extrusion profile paired with specially designed hardware, making them suitable for specialized applications. This type of aluminum door has both advantages and disadvantages. Advantage 1: When open, folding doors can act as partitions, providing excellent natural light for interior spaces while maintaining practical functionality. When folded, they take up very little space, maximizing the usable area indoors. Advantage 2: Equipped with custom hardware, aluminum folding doors create a more flexible spatial layout and enhance a sense of openness when opened.Advantage 3: This type of aluminum door and window is highly practical. It suits nearly all spaces, whether in large or small homes. During production, aluminium profile with different wall thicknesses can be selected based on the actual usage environment. For multi-panel door frames, thicker aluminium profile paired with high-quality hardware are recommended. For fewer door panels, the choice can be determined according to actual needs. Disadvantage : Compared with standard casement doors and windows, folding doors have poorer sealing and sound insulation performance. Due to their design characteristics, there are relatively large gaps between door panels.  

Folding doors are aluminium profiles window and door that combine both decorative and practical functions. The advantages of folding doors are as follows:First, they save space. The biggest advantage of folding doors is that they can be folded away when not needed, without taking up too much room. They are especially suitable for spaces that require frequent opening and closing. Second, folding doors come in a wide variety of designs and can be selected to match your home decoration style. Made of high-quality aluminum extrusion profile paired with premium hardware, aluminum alloy folding doors offer both durability and aesthetic appeal. They fulfill functional needs while enhancing the overall look of your interior.Third, aluminum alloy folding doors are easy to clean. Thanks to their simple structure, they are simpler to clean and maintain compared to traditional sliding doors. Next, folding doors are slightly less effective in terms of sealing and thermal insulation than casement door，but they can fully meet daily usage requirements.When choosing aluminum alloy folding doors, pay attention to the following points.First, focus on the quality of the sliding tracks. High-quality tracks offer better load-bearing capacity, stability, and durability. You can test them by sliding the door panels to check if they move smoothly. If the folding door is for outdoor use, select models made of aluminium profile with higher hardness.

   For balcony partitions, we recommend heavy-duty sliding doors, with aluminum extrusion profile having a wall thickness of more than 2 mm. Slim-frame sliding doors are the standard choice for kitchens and bathrooms; the thinner the frame, the more aesthetically pleasing it looks. The thinner aluminium profile selected as material. Therefore, when choosing a sliding door, keep these three points in mind:First, select the opening method based on the space size.  Second, pick the material and style according to the decoration style. Finally, choose functional styles for special needs.When purchasing aluminium profiles window and door, When purchasing aluminum alloy doors and windows, make sure they open and close smoothly, check that the pulleys and tracks are securely fitted, and inspect whether the surface finish of the aluminium profile is smooth.

Sliding doors are mainly divided into two categories: by opening method, and by style and material. Starting with the opening method: The most common type is the surface-mounted style, where the door frame is installed directly on the track. The track can be mounted either on top or on the floor. This is the most common installation method, with a relatively simple installation process and easy maintenance. The disadvantage is that the floor track tends to collect dust. Next is the recessed type, in which the pulleys and door axles are hidden inside the wall. There is also the hanging type, with the track exposed at the top and no floor track. It is suitable for bookcases and decorative cabinets. As for materials,aluminium profiles window and door are durable and aesthetically pleasing. Aluminum alloy sliding doors can be used in kitchens, bathrooms, and for aluminium profile partitions. If the application environment requires a high level of privacy, you can choose aluminum extrusion profile with high-quality hardware fittings and Low-E frosted glass.This type of sliding door provides both privacy and excellent thermal insulation.

Casement door can open inward or outward. They consist of several main components: the door frame, door leaf, hinges, and lockset. The primary raw material for both the door frame and door leaf is aluminum extrusion profile. Key features of casement door include hinges installed on the side of the door, allowing it to open and close by rotating. They are one of the most common types of doors. Features of casement doors include good airtightness, excellent sound insulation and thermal retention, as well as easy installation. The door frame and door leaf fit tightly together, making them suitable for spaces that require sound insulation and thermal retention. They are also easy to install and feature a standardized structure. 6063 alloy aluminium profile is the most common raw material used for casement door. Single casement door have only one door panel, with one side fixed as the hinge side and the other opening and closing freely. With continuous improvements in standardization, overall performance, and decorative appeal, aluminium profiles window and door have played an increasingly important role in home decoration.

Let's talk about the track and pulley system. For the floor‑mounted track, the track is installed on the ground, offering strong stability, but cleaning can be less convenient. For the ceiling‑mounted track, the track is installed at the top with no obstacles on the floor, though stability is somewhat lower. As for pulley materials, fiberglass pulleys are the most wear‑resistant, while plastic ones tend to wear out easily.   Aluminium sliding doors also come in a wide variety of designs, including single-panel and multi-panel styles. Multi-panel doors can flexibly divide large spaces. The recessed design hides both the pulleys and tracks, resulting in a cleaner appearance.There are also heavy-duty sliding doors made with thickened aluminium profile, which offer better load-bearing capacity and sound insulation.   When it comes to functionality, sliding doors are particularly ideal for small apartments. Many ultra-narrow sliding doors used in bathrooms and kitchens are made of aluminum extrusion profile with a small decorative surface, matched with hardware fittings. These sliding doors offer good overall structure and decorative appeal.   Moreover, current designs such as narrow frames and hidden tracks can greatly enhance the overall interior style, which further improves the decorative value of aluminium profiles window and door.    

   Aluminium sliding door operate by moving horizontally along a track. Their main components include the door panel itself, primarily constructed from aluminium profile, along with the track and rollers. The primary advantage of this type of door is its space-saving design, offering both aesthetic appeal and practicality.   Regarding the panel material, glass panels are the most common choice. Aluminium sliding doors are particularly well-suited for spaces requiring abundant natural light. Aluminum alloy sliding doors featuring large panes of transparent glass achieve an optimal balance between structural integrity and decorative design.    High-quality hardware accessories combined with aluminum extrusion profile, serve as the primary materials for manufacturing aluminium profiles window and door system. The track and roller system is one of the key factors determining whether a sliding door operates smoothly.  

Track and pulley systems are important components of aluminium sliding door. Tracks come in three types: overhead tracks mounted above the door, floor tracks installed underneath, and hidden tracks. Heavy-duty doors typically utilize a dual-track design.  Secondly, the sealing system of sliding doors is also crucial. They employ a frame-and-panel structure combined with EPDM rubber gaskets to create multiple continuous sealing lines.Additionally, drainage holes designed within the aluminium profile effectively prevent water infiltration. With advancements in technology, materials for sliding doors are continuously being upgraded. The use of 6063-T5 aluminum extrusion profile ensures the structural integrity of the entire door system. Aluminium profiles window and door track surface undergoes an anodized finish treatment, further enhancing its material hardness and weather resistance.  

 A complete sliding door system consists of five main components: the door panel, the track system, the roller assembly, sealing mechanisms, and hardware. These parts must work together precisely to achieve smooth left-to-right operation.  Currently, mainstream aluminium profiles window and door on the market feature frames made from high-strength, multi-chambered designs, produced using precision extrusion processes. The frame thickness typically ranges between 3-5 millimeters. Standard aluminum alloy windows and doors commonly utilize 6063-T5 or T6 temper aluminum extrusion profile. The use of these high-strength aluminium profile ensures adequate load-bearing capacity.