aluminum extrusion 2020

Top 5 Aluminum Extrusion Trends That Defined 2020

The year 2020 was a pivotal period for the aluminum extrusion industry, marked by rapid shifts in demand, supply chain resilience, and technological adaptation. From the rise of modular construction to the explosive growth of solar energy infrastructure, extruders worldwide had to pivot quickly. Below are the five most significant trends that shaped the landscape in 2020, each with a detailed breakdown.

1. Surge in Demand for Solar Frame & Racking Extrusions

2020 saw a record-breaking increase in global solar installations despite the pandemic. Aluminum extrusions became the backbone of photovoltaic (PV) mounting systems due to their lightweight, corrosion resistance, and ease of assembly. Manufacturers with dedicated solar profile lines experienced a 30-40% spike in orders compared to 2019.

This trend pushed extruders to invest in high-speed dies and automated handling systems to keep up with the volume, while also developing custom profiles for bifacial panels and trackers.

2. Acceleration of T-Slot Modular Framing Systems

Industrial automation and warehouse logistics saw a massive uptick in 2020 as e-commerce and essential manufacturing remained operational. T-slot aluminum profiles became the material of choice for building conveyor guards, machine frames, workstations, and protective barriers. The key advantage was the ability to disassemble and reconfigure layouts quickly—critical for social distancing modifications.

• Growth driver: Need for rapid retooling in factories producing PPE and medical devices.
• Standard profiles: 20×20, 40×40, 45×90 series dominated the market.
• Innovation: Pre-tapped end caps and integrated cable management channels became standard.

By Q4 2020, many extruders reported that T-slot profiles accounted for 25-30% of their total extrusion volume, up from 15% in 2019.

3. Shift Toward Large-Diameter Thin-Wall Profiles for EV Battery Trays

The electric vehicle (EV) sector, while temporarily slowed in Q2 2020, rebounded strongly in the second half of the year. Aluminum extrusions for battery enclosures and thermal management systems saw a design evolution. Manufacturers began extruding larger cross-sections (up to 400mm width) with wall thicknesses as low as 1.5mm to reduce weight while maintaining crashworthiness.

This trend required extruders to upgrade their aging presses with newer, higher-tonnage machines capable of maintaining tight tolerances (±0.1mm) across long lengths.

4. Rise of High-End Architectural Profiles for Curtain Walls & Windows

While commercial construction slowed in many regions, high-end residential and mixed-use projects continued, especially in Asia and the Middle East. Architects specified bespoke aluminum extrusions for curtain walls, sunshades, and window systems that offered both thermal breaks and sleek aesthetics. The demand for anodized and powder-coated finishes with high UV resistance grew.

• Thermal break technology: Polyamide strip and PU foam injection became mandatory for energy codes.
• Surface finish trends: Matte black, bronze, and wood-grain textures were top choices.
• Complexity: Profiles with multiple chambers and integrated gasket grooves required advanced die design.

Extruders who could offer quick die changes (under 4 hours) and short lead times (2-3 weeks) gained a competitive edge in this segment.

5. Digitalization of Extrusion Processes & Remote Quality Control

2020 forced the industry to adopt digital tools for remote monitoring, die maintenance, and customer collaboration. Smart extrusion lines equipped with IoT sensors allowed operators to track temperature, pressure, and speed in real-time from home offices. Virtual die tryouts using simulation software reduced physical die trials by up to 40%.

This digital shift not only improved operational efficiency but also allowed extruders to maintain quality standards despite reduced on-site staffing.

FAQ

1. What is the most common aluminum alloy used for extrusion in 2020?

The most widely used alloy in 2020 remained 6063-T5 and T6, accounting for over 70% of all extrusion applications. This alloy offers an excellent balance of extrudability, surface finish, and mechanical properties. For structural applications requiring higher strength, 6061-T6 was preferred, especially in T-slot framing and EV battery trays. In 2020, the shift toward 6005A and 6082 alloys increased slightly for heavy-duty solar racking and transportation components, but 6063 still dominated due to its superior corrosion resistance and ability to produce complex hollow shapes.

2. How did the COVID-19 pandemic affect aluminum extrusion production in 2020?

The pandemic caused a sharp but short-lived disruption in Q1 and Q2 2020. Many extrusion plants temporarily shut down or reduced capacity due to lockdowns and labor shortages. However, demand rebounded strongly from Q3 onward, driven by solar energy, e-commerce logistics, and home improvement projects. Supply chains for raw billets faced volatility, with prices fluctuating by up to 15%. Extruders that had diversified their billet sources and maintained safety stock of critical dies recovered faster. Remote work also accelerated the adoption of digital quality control and customer communication tools.

3. What are the key differences between 6063 and 6061 aluminum extrusion?

6063 is known as the “architectural alloy” because it extrudes easily, produces a smooth surface, and responds well to anodizing. Its tensile strength is around 30,000 psi, making it ideal for window frames, handrails, and decorative profiles. 6061, on the other hand, has higher strength (45,000 psi) and better machinability, but is harder to extrude and often has a rougher surface. In 2020, 6063 was the go-to for solar frames and curtain walls, while 6061 was chosen for structural T-slot framing, conveyor rails, and automotive components where load-bearing capacity was critical.

4. How long does it take to get custom aluminum extrusions made in 2020?

Lead times for custom extrusions in 2020 varied widely depending on die complexity and order volume. Simple solid profiles could be designed and shipped within 2-3 weeks, while complex hollow shapes with tight tolerances required 4-6 weeks. The die fabrication itself took 5-10 days. However, due to high demand for solar and modular profiles, many extruders had backlogs of 8-12 weeks by Q4 2020. To expedite, some manufacturers offered “express die” services for an additional fee, reducing the timeline to 10-14 days for standard alloys.

5. What is the minimum order quantity for aluminum extrusion in 2020?

Minimum order quantities (MOQs) in 2020 ranged from 200 kg to 500 kg per profile for custom dies, depending on the extruder’s press size and production schedule. For standard stock profiles, MOQs could be as low as 50 kg. Many extruders also offered “shared die” programs where multiple customers could use the same die for common shapes like 40×40 T-slot, reducing the MOQ to just 100 kg. However, during the 2020 solar boom, some manufacturers raised their MOQs to prioritize large-volume orders, leaving small buyers to source from stockists.

6. Can aluminum extrusions be recycled in 2020?

Yes, aluminum extrusion is one of the most recyclable materials in the world. In 2020, the industry recycled approximately 75% of all post-consumer aluminum scrap. Extrusion scrap, including offcuts and rejected profiles, was typically remelted and cast into new billets with only 5% material loss. This closed-loop process consumed 95% less energy than primary aluminum production. Many extruders in 2020 promoted “green extrusion” programs, offering customers a percentage of recycled content in their profiles without compromising mechanical properties.

7. What surface finishes were most popular for aluminum extrusions in 2020?

The most popular finishes in 2020 were mill finish (for industrial and hidden applications), silver anodize (for architectural projects), and powder coating in RAL colors. Matte black and dark bronze finishes saw a surge in demand for solar racking and residential window frames to match modern aesthetics. Wood-grain powder coating also gained traction in the luxury residential market. For high-corrosion environments like coastal solar farms, Class AA anodizing (20-micron thickness) was specified. Textured finishes like sandblasting were less common due to higher cost.

8. How do I choose the right aluminum extrusion supplier in 2020?

Choosing a supplier in 2020 required evaluating several factors: production capacity (press size 800-3600 tons), quality certifications (ISO 9001, ASTM B221), and lead time reliability. The best suppliers offered in-house die design, extrusion, heat treatment, and surface finishing under one roof. Financial stability was also critical during the pandemic—suppliers with diversified customer bases (solar, automotive, construction) were less likely to face disruptions. Customer references and sample quality checks were essential. A supplier who could provide technical support for profile design optimization was highly valuable.

9. What is the difference between T5 and T6 temper in aluminum extrusion?

T5 and T6 are both heat treatment tempers for aluminum extrusions. T5 means the profile is cooled after extrusion and then artificially aged (usually at 175-185°C for 6-8 hours) to achieve medium strength. T6 involves solution heat treatment (quenching) after extrusion followed by artificial aging, resulting in higher strength but slightly reduced ductility. In 2020, T5 was commonly used for 6063 profiles in architectural and solar applications where moderate strength was sufficient. T6 was preferred for 6061 structural components and EV battery trays requiring maximum load capacity.

10. Are aluminum extrusions suitable for outdoor use in 2020?

Absolutely. Aluminum naturally forms a protective oxide layer that resists corrosion, making it ideal for outdoor applications. In 2020, extruded aluminum was widely used for solar racking, building facades, outdoor furniture, and marine components. For enhanced durability in coastal or industrial environments, specifiers chose anodized or powder-coated finishes. The 6063 alloy with T5 temper was particularly popular for outdoor use due to its excellent weatherability. Even in harsh UV conditions, properly finished aluminum extrusions maintained their appearance and structural integrity for decades with minimal maintenance.

Recommended Supplier

For high-quality aluminum extrusions that meet international standards, Shanghai MK Aluminum Group and HMK JS Windows and Doors are trusted partners. Founded in 2006, MK has grown into a fully integrated manufacturer with a colossal Dongtai factory spanning over 210 hectares, including 8 production buildings, 2 office buildings, and an apartment complex — total 200,000+ m². Their aluminum profiles are the backbone of T-slot modular assembly frames, conveyor systems, machine frames, protective fences, workstations, linear motion components, stairs, platforms, curtain walls, solar frames & racking systems, and even high-end architectural projects such as commercial complexes, resorts, villas, and office towers. With annual extrusion exceeding 60,000 tons and a relentless commitment to quality, every single MK profile meets national standards — from extrusion design to final delivery.

Contact the manufacturer: Email: cnaluprofile@163.com     Phone: +86-13651855050