5052 is an Al-Mg rust-proof aluminum alloy that cannot be strengthened by heat treatment; instead, it relies on work hardening (cold working) to increase strength. It is the most widely used low-to-medium magnesium rust-proof aluminum alloy in the 5000 series. Key characteristics include excellent resistance to atmospheric and mild salt-spray corrosion, good weldability, and high ductility, making it suitable for bending, stamping, and forming operations. It offers good fatigue strength, though its overall strength is lower than that of 5083; machinability is moderate. The addition of chromium (Cr) improves resistance to intergranular corrosion. Density: 2.68 g/cm³.

Chemical composition

Common supply tempers (tubing):

O (Annealed/Soft): Best ductility; tensile strength 170–215 MPa, yield strength ≥65 MPa; suitable for bending, flaring, and complex forming.

H32 (1/4 Hard; common for tubing): Tensile strength 215–265 MPa, yield strength ≥160 MPa; balanced strength and ductility.

H34 (Half-hard): Higher strength, reduced ductility; H112 (As-extruded).

Product types: Seamless cold-drawn aluminum tubes, extruded round aluminum tubes; square/rectangular tubes available upon request.

Surface treatment: Pickling, polishing, natural anodizing; not suitable for dark-colored anodizing (prone to color inconsistency); anti-corrosion coating available.

Features: Negligible loss of strength after welding.

Application Scenarios

1. Fluid Piping and Vessel Components

Hydraulic lines, lubrication conduits, gas transmission pipes, fittings for oil or water tanks, and shells for small pressure vessels—suitable for applications requiring tube bending and flaring.

2. Vehicles & Marine (Mild Marine Environments)

Components for trucks and buses; brackets for marine interiors (not subject to direct, continuous immersion in seawater); frames for yacht interiors; and sheet metal/tubular components for marine use. (Note: For components subject to long-term seawater immersion, 5083 alloy is preferred.)

3. Instrumentation and Electromechanical Enclosures

Instrument housings, equipment brackets, street light poles, control cabinet frames, and metal tubular components.

4. Medical Devices (External Use Only; Not for Implantation)

Frames for external medical equipment requiring bending/forming, piping for cleanroom equipment, and lightweight frames for mobile medical instruments—suitable for humid indoor environments.

5. Miscellaneous

Stamped and bent components, piping for refrigeration equipment, lightweight outdoor railings, and thin-walled tubular parts for fitness equipment.