Custom Aluminum Extrusion Profiles | 7000 Series (7003, 7005, 7020, 7A05, 7A19)
We Shenzhen Chinalcometal specialize in custom extrusion of high-strength 7xxx series aluminum profiles, manufactured strictly according to customer drawings or samples. Using advanced extrusion lines, precision dies, and controlled heat treatment, we deliver aluminum products with excellent strength-to-weight ratio, outstanding fatigue resistance, and reliable weldability.
These alloys are widely used in rail transit, transportation, structural engineering, machinery, defense, and high-load industrial systems, where performance and dimensional accuracy are critical.
Customization Capability of 7xxx series aluminum profiles
Extrusion based on customer drawings, samples, or 3D files
Complex hollow tubes & multi-cavity profiles
Tight dimensional tolerance control
Post-processing available:
aging (T5 / T6), straightening, cutting, CNC machining, surface treatment
Sizes of 7000 series aluminum profiles:
Circumcircle diameter：100---530mm
Temper: H112,O, T4, T5,T6
Standards & Compliance of 7xxx series aluminum profiles
EN Standards
EN 573 – Chemical composition
EN 755 – Extruded aluminum profiles
EN 515 – Temper designation
ASTM Standards
ASTM B221 / B221M – Aluminum extruded bars, rods, profiles, tubes
BS Standards
BS EN 755
BS EN 573
Mill Test Certificates (EN 10204 3.1) and full traceability are available.
Mechanical Properties (Typical – Extruded Profiles)
Alloy | Temper | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) |
7020 | T5 / T6 | 260 – 330 | 340 – 420 | 8 – 14 |
7003 | T5 / T6 | 240 – 310 | 320 – 400 | 10 – 16 |
7005 | T5 / T6 | 250 – 320 | 330 – 410 | 8 – 15 |
7A05 | T6 | 360 – 430 | 430 – 510 | 6 – 12 |
7A19 | T6 | 420 – 480 | 500 – 560 | 6 – 10 |
Advantages of 7xxx series aluminum profiles
High Strength-to-Weight Ratio
Significantly stronger than 6xxx series
Ideal for lightweight yet load-bearing structures
Excellent Extrusion Performance
Suitable for thin-wall, large-section, and hollow profiles
Stable geometry even for complex cross-sections
Superior Fatigue Resistance
Reliable performance under cyclic and dynamic loads
Long service life in transportation and structural applications
Weldability & Structural Reliability
7020 / 7003 / 7005 alloys offer excellent weldability
Minimal strength loss after welding
Custom-Made from Drawing or Sample
One-stop solution from design validation to mass production
Consistent quality across batches
Application Areas of 7xxx series aluminum profiles
Rail Transit & Transportation
Train car bodies
Metro and high-speed rail structural profiles
Load-bearing hollow aluminum tubes
Recommended alloys: 7020 · 7005 · 7003
Automotive & Commercial Vehicles
Chassis components
Crash-resistant structural tubes
Lightweight frame systems
Recommended alloys: 7005 · 7020 · 7A05
Industrial Machinery & Equipment
Heavy-duty frames
Robotic arms
High-load support structures
Recommended alloys: 7020 · 7A05 · 7A19
Defense & Special Engineering
Armored structures
High-strength load-bearing components
Military vehicle frames
Recommended alloys: 7A05 · 7A19
Construction & Structural Engineering
Large-span aluminum structures
Temporary or modular load systems
Offshore & industrial platforms
Recommended alloys: 7020 · 7005
Why Choose Our Custom Extrusion Service?
Proven experience with 7xxx series aluminum
Precision tooling and strict process control
EN / ASTM / BS compliant production
Engineering support from drawing review to delivery
Stable supply for project and mass production
