2xxx series aluminum alloys (aluminum-copper alloys) are high-strength duralumin with the following core properties:

• Excellent strength and hardness, with tensile strength reaching 400–480 MPa, much higher than ordinary 1xxx and 3xxx series aluminum alloys.

• Good high-temperature strength and fatigue resistance, suitable for structural parts under alternating loads.

• Heat-treatable (solution treatment + aging) to achieve an optimal balance of strength and toughness.

• Good machinability, allowing extrusion, forging, cutting and other precision processing.

• Relatively low corrosion resistance; anodizing or coating is usually required to improve protection.

II. Application Scope

With the advantages of high strength and lightweight, 2xxx series aluminum alloy tubes are widely used in:

• Aerospace: Aircraft structural parts, wing skins, landing gear components, hydraulic pipelines, etc.

• High-end machinery: Automotive drive shafts, racing parts, molds, high-strength mechanical structural parts.

• Transportation: Lightweight high-speed rail components, marine structural parts and other high-strength demanding applications.

III. Customization Service

We provide full-size customization according to customer requirements:

• Outer diameter: Φ10 mm – Φ300 mm

• Wall thickness: 1 mm – 50 mm

• Length: Custom cutting available (standard 6 m; longer or shorter lengths can be customized)

We also support customized heat treatment tempers (such as T3, T4, T6, etc.) and surface treatment processes.

IV. International Grade Equivalent

2xxx series aluminum alloy bars (aluminum-copper duralumin) are typical high-strength, heat-treatable reinforced aluminum alloys with the following core properties:

• High strength and hardness: Tensile strength reaches 400–480 MPa with excellent yield strength, far exceeding that of common 1xxx, 3xxx series aluminum alloys.

• Superior fatigue resistance and high-temperature strength, suitable for alternating loads and medium-temperature working conditions.

• Excellent machinability, enabling high-precision turning, milling, drilling and other precision processing.

• Heat-treatable via solution treatment + aging (e.g., T3, T4, T6 tempers) to achieve an optimal balance of strength and toughness.

• Moderate corrosion resistance, typically requiring surface treatments such as anodizing or coating to enhance weather resistance.

II. Application Scope

With the advantages of high strength and lightweight, 2xxx series aluminum alloy bars are widely used in:

• Aerospace: Aircraft structural parts, landing gear components, hydraulic system parts, precision brackets, etc.

• High-end machinery manufacturing: Automotive drive shafts, racing parts, mold inserts, high-strength mechanical shaft parts.

• Transportation and industrial equipment: Lightweight structural parts for high-speed rail, high-strength marine components, precision shafts for automation equipment, and other applications with stringent strength requirements.

• III. Customization Service

We provide full-specification customization according to customer requirements:

• Diameter range: Φ10 mm – Φ300 mm (larger or smaller sizes available upon request)

• Length: Standard lengths of 2 m / 3 m / 6 m, with custom cutting available

• Customizable tempers and surface treatments: Heat treatment tempers (T3, T4, T6, etc.) and surface processes (turning, polishing, anodizing, etc.) are supported.

IV. International Grade Equivalents & Standard Compliance

2xxx series aluminum alloy plates (aluminum‑copper duralumin) are typical high‑strength, heat‑treatable aluminum alloy plates with the following core properties:

- High strength and hardness: The tensile strength of 2xxx series aluminum alloy plates reaches 400–480 MPa, with excellent yield strength, which is significantly higher than that of ordinary aluminum alloy plates such as 1xxx and 3xxx series.

- Excellent fatigue resistance and medium‑temperature strength, suitable for plate applications under alternating loads and medium‑temperature service conditions.

- Good formability and weldability (with process control); 2xxx series aluminum alloy plates can be formed by stamping, bending, riveting and other common plate processing processes.

- The optimal balance of strength and toughness can be achieved through solution and aging heat treatment (e.g., T3, T4, T6 tempers) for aluminum alloy plates.

- Moderate corrosion resistance; surface treatments such as anodizing or coating are usually applied to 2xxx series aluminum alloy plates to improve their weatherability and service life.

II. Application Scope

With high strength and lightweight characteristics, 2xxx series aluminum alloy plates are widely used in various fields that require high-performance plates:

- Aerospace: Aircraft skins, wing structural plates, fuselage frames, cabin door plates, etc.

- High‑end machinery manufacturing: Lightweight automotive body plates, racing structural plates, mold face plates, high‑strength mechanical panels and plates.

- Transportation & industrial equipment: Lightweight high‑speed rail structural plates, ship deck plates and cabin structure plates, automation equipment structural plates, and other high‑strength demanding plate applications.

III. Customization Service

We provide full‑specification customization of 2xxx series aluminum alloy plates according to customer requirements:

- Thickness range: 0.5 mm – 200 mm (thinner or thicker aluminum alloy plates available upon request)

- Width range: 1000 mm – 2400 mm

- Length range: 2000 mm – 6000 mm; custom cutting of aluminum alloy plates is available as required

- Support customized heat treatment tempers (T3, T4, T6, etc.) and surface treatments (polishing, brushing, anodizing, painting, etc.) for 2xxx series aluminum alloy plates.

IV. International Grade Equivalent Table for 2xxx Series Aluminum Alloy Plates

3xxx series aluminum alloys are aluminum-manganese alloys, belonging to non-heat-treatable rust-proof aluminum, with the following characteristics:

• Excellent corrosion resistance: Strong resistance to atmospheric and fresh water corrosion, making it a commonly used rust-proof aluminum alloy.

• Good plasticity: Easy to extrude and form, with excellent welding performance, suitable for manufacturing various tubes and structural components.

• Moderate strength: Stable mechanical properties and good low-temperature performance.

• Superior formability: Smooth surface finish, easy for subsequent processing such as bending, flaring, and necking.

• Low density: Significant lightweight effect with economical usage cost.

• II. Application Scope

Widely used in fields with high requirements for corrosion resistance and formability:

• Refrigeration & air conditioning: Heat exchangers, condenser tubes, heat dissipation pipelines

• Automotive: Fuel pipes, water pipes, air pipes, automotive fluid pipelines

• Marine & transportation: Marine engineering, vehicle interior structural tubes

• Architecture & decoration: Furniture brackets, guardrails, lighting tubes

• Chemical & industrial: Chemical pipelines, general mechanical structures, fluid transmission pipelines, etc.

III. Customizable Size Range

Outer diameter, wall thickness, and length can all be customized according to customer drawings and requirements:

• Outer diameter: Φ6 mm – Φ200 mm

• Wall thickness: 0.5 mm – 20 mm

• Length: Standard lengths of 2 m / 3 m / 6 m, with custom cutting available

• Custom processing available: Drawn tubes, precision drawn tubes, polished tubes, anodizing, etc.

IV. International Grade Equivalent Table

3xxx series aluminum alloys are aluminum-manganese alloys, classified as rust-proof aluminum. They are non-heat-treatable and rely on work hardening to increase strength:

• Exceptional corrosion resistance: Outstanding resistance to atmospheric, fresh water, weak acid and weak base corrosion.

• Good plasticity and machinability: Excellent cutting performance, facilitating precision processing such as turning, drilling and milling.

• Superior weldability: Suitable for various welded structural components.

• Moderate strength and stable mechanics: Stable mechanical properties with good low-temperature toughness.

• High surface quality: Conducive to surface treatments such as anodizing and polishing.

II. Application Scope

Suitable for structural parts and mechanical components requiring high corrosion resistance and processability:

• Chemical industry: Chemical equipment, pressure vessels, corrosion-resistant brackets and fasteners.

• Marine & transportation: Marine accessories, marine structural parts, hardware and mechanical parts.

• Refrigeration & HVAC: Refrigeration equipment, air conditioning components, heat dissipation structural parts.

• Decoration & precision: Decorative components, lighting accessories, precision instrument housings and shaft parts.

• General machinery & electronics: General machinery, light industrial equipment, electronic and electrical structural parts.

III. Customizable Size Range

Diameter, length and precision can all be customized according to customer requirements:

• Diameter: Φ5 mm – Φ250 mm

• Length: Standard lengths of 2 m / 3 m / 6 m, with custom cutting available

• Custom processing available: Polished bars, turned bars, ground bars, anodizing and coloring, etc.

IV. International Grade Equivalent Table

3xxx series aluminum alloys are aluminum-manganese alloys, classified as non-heat-treatable rust-proof aluminum, with core performance focused on corrosion resistance and formability, as detailed below:

• Excellent corrosion resistance: Outstanding resistance to atmospheric, fresh water, weak acid and weak base corrosion, ideal for humid, outdoor and mildly corrosive environments.

• Superior plasticity: Easy to form via cold working processes such as stamping, bending, stretching and shearing, with low cracking risk.

• Excellent weldability: Compatible with various welding methods including TIG welding, gas welding and spot welding, with stable performance after welding.

• Moderate strength: Tensile strength ranges from 110–150 MPa, with uniform mechanical properties, good low-temperature toughness and no risk of stress cracking.

• High surface finish: Easy to perform surface treatments such as anodizing, spraying, polishing and brushing, with strong decorative performance.

• Lightweight & cost-effective: Better cost performance than high-strength 2xxx and 7xxx series aluminum alloys, suitable for mass production applications.

II. Application Scope

Featuring "corrosion resistance + easy processability", 3xxx series aluminum alloy plates are widely used in scenarios requiring moderate strength, high corrosion resistance and formability:

• Decoration: Building curtain walls, interior decorative panels, furniture panels, lighting housings, billboard substrates

• Refrigeration & home appliances: Air conditioner housings, refrigerator liners, freezer doors, radiator panels

• Chemical & marine: Chemical equipment housings, corrosion-resistant containers, ship interior panels, auxiliary structural parts for offshore platforms

• Machinery & light industry: General machinery housings, instrument panels, hardware accessories, medical equipment housings

• Transportation: Automotive interior panels, truck compartment linings, rail transit decorative parts, small ship decks

• Others: Food packaging containers, civilian hardware, electronic and electrical appliance housings, etc.

III. Customizable Size Range

Thickness, width, length and surface treatment can be precisely customized according to customer requirements, adapting to various application scenarios:

• Thickness: 0.3 mm – 100 mm (thinner or thicker sizes available upon request for special needs)

• Width: 1000 mm – 2400 mm (standard width, narrow plates can be cut as required)

• Length: 2000 mm – 6000 mm, custom cutting supported, with precise blanking available per customer drawings

• Custom processing: Support surface treatments including anodizing (various colors), spraying, polishing, brushing and film lamination, as well as forming processes such as stamping and bending.

IV. International Grade Equivalent Table

5‑Series aluminum alloys are aluminum‑magnesium alloys, belonging to non‑heat‑treatable corrosion‑resistant aluminum, with the following core properties:

• Excellent corrosion resistance: Especially resistant to seawater and marine atmosphere corrosion, making it one of the preferred aluminum materials for marine environments.

• Moderate but reliable strength: Significantly higher than 1‑Series and 3‑Series alloys, with stable mechanical properties.

• Outstanding weldability: Small strength reduction after welding, ideal for welded pipelines and structural components.

• Good plasticity: Excellent performance in extrusion, bending, flaring, and necking processes.

• Superior low‑temperature toughness: No low‑temperature brittleness, suitable for low‑temperature working conditions.

• Smooth surface: Easy for anodizing, polishing, brushing and other surface treatments.

II. Application Scope

Widely used in fields with comprehensive requirements for corrosion resistance, weldability and strength:

• Shipbuilding & marine engineering: Seawater pipelines, cabin pipelines, deck matching pipes

• Automotive industry: Fuel pipes, brake oil pipes, cooling water pipes, exhaust pipelines

• Refrigeration & air conditioning: Heat exchangers, condenser tubes, refrigeration unit pipelines

• Chemical industry: Corrosion‑resistant fluid transmission pipes, chemical equipment pipelines

• Rail transit & engineering machinery: Hydraulic pipelines, pneumatic pipelines, structural pipes

• Outdoor facilities, lighting & decorative structural pipes

III. Customizable Size Range

Outer diameter, wall thickness, length and precision can all be customized according to customer requirements:

• Outer diameter: Φ6 mm – Φ250 mm

• Wall thickness: 0.5 mm – 30 mm

• Length: Standard 2m / 3m / 6m, custom cutting available

• Custom processing: Precision drawn tubes, polished tubes, anodizing, pickling and passivation, etc.

IV. International Grade Equivalent Table

5xxx series aluminum alloys are aluminum-magnesium alloys, classified as non-heat-treatable rust-proof aluminum, with the following key properties:

• Excellent corrosion resistance: Outstanding performance against seawater, salt spray and humid environments, ideal for marine and outdoor working conditions.

• Moderate strength: Strength is further improved after work hardening, with stable comprehensive mechanical properties.

• Superior weldability: A commonly used material for welded structural components, with minimal strength loss after welding.

• Good machinability: Smooth processing in turning, milling, drilling and other operations, with low tool adhesion.

• Excellent low-temperature toughness: No low-temperature brittleness, suitable for structural parts of low-temperature equipment.

• High surface quality: Compatible with various surface treatments such as polishing, brushing and anodizing.

II. Application Scope

Suitable for various structural parts and mechanical components with high requirements for corrosion resistance, weldability and strength:

• Shipbuilding & marine engineering: Marine accessories, deck fasteners, brackets, shaft parts

• Chemical equipment: Corrosion-resistant structural parts, flanges, joints, pump and valve accessories

• Transportation: Automotive parts, rail transit structural parts, engineering machinery accessories

• Refrigeration & low-temperature equipment: Low-temperature container accessories, refrigeration unit structural parts

• General machinery, hardware molds, electronic and electrical structural parts, outdoor equipment accessories, etc.

III. Customizable Size Range

Diameter, length, precision and surface condition can all be customized according to customer requirements:

• Diameter: Φ5 mm – Φ300 mm

• Length: Standard lengths of 2 m / 3 m / 6 m, custom cutting available per drawings

• Custom processing available: Turned bars, drawn bars, ground bars, pickling and passivation, anodizing, etc.

IV. International Grade Equivalent Table