High-Performance 7003 T6 Aluminum Tubes

Overview

Crafted from 7003-T6 aluminum with dual-layer protection (powder coat + anodize), these tubes feature high tensile strength, precise dimensions, and customizable finishes, ideal for aerospace, defense, and heavy machinery.

Features

Premium Alloy & Surface Treatment

Alloy Excellence: 7003-T6 (Zn 5.1%, Mg 2.1%) with yield strength 345 MPa, tensile strength 400 MPa—25% stronger than 6061-T6, compliant with ASTM B221.

Dual Protection:

Anodize (25μm Type III hard coat): Wear resistance (HV 300) and dielectric strength (500V DC).

Powder coat (70μm polyester): UV resistance (5000h Xenon test, ΔE ≤3) and chemical resistance (acid/alkali tolerance pH 4-10).

Structural & Dimensional Precision

Wall Thickness: 2-20mm, supporting axial loads up to 80kN (calculated per EN 1999-1-1), with moment of inertia 40% higher than standard 6061-T6 tubes.

Tolerance Control: OD/width tolerance ±0.2mm, wall thickness ±0.1mm (ISO 2768-1 medium class), ensuring tight fits in safety-critical assemblies.

Environmental & Mechanical Resistance

Temperature Stability: Operational from -50°C to 150°C, maintaining 95% strength at elevated temperatures (tested per ISO 6892-1).

Corrosion Resistance: Dual coating passes 2000h salt spray test (ASTM B117) with zero red rust, ideal for offshore, military, and arid zone applications.

Design & Installation Flexibility

Cross-Section Options: Round, square, rectangular, and custom profiles (max size 300x300mm), with pre-machined flanges and mounting brackets (M10-M20 threads).

Weight-to-Strength Ratio: Specific strength 128 MPa·m³/kg, 30% better than equivalent steel tubes, reducing structural weight in aerospace applications.

Application

Aerospace Structures: Wing ribs, landing gear components, and satellite frames, compliant with AS9100D and NADCAP requirements.

Defense Equipment: Military vehicle frames, missile launchers, and armored vehicle components, resisting ballistic impacts (NIJ 0108.01 Level IIIA equivalent protection).

Heavy Machinery: Hydraulic cylinders, excavator arms, and mining equipment supports, with hard coat anodize reducing wear from heavy loads and abrasive environments.

Why Choose Us

Material Science Leadership

First-to-market dual-coat technology (powder coat + anodize) in 7003-T6 tubes, achieving 50% longer lifespan in harsh environments than single-coat solutions.

Rigorous Testing

10-point quality tests including salt spray, impact resistance (20J, IK08), and fatigue (10^7 cycles at 70% yield strength), compliant with MIL-STD-810G.

Custom Fabrication Capability

In-house CNC boring, honing, and shot peening for critical surfaces (Ra ≤0.4μm), supporting aerospace-grade precision (tolerance ±0.01mm).

Global Compliance

Certified to NADCAP, AS9100D, and EN 1090-1 EXC3, with material traceability (heat lot numbers laser-marked on each tube).