AMS4067 3003 Aluminum Pipe H14 H112 SeamlessTube WW-T-700/2
Alloy 3003 H14 H112 HO Aluminum Seamless Tubes (AMS 4067 / WW-T-700/2) are non-heat-treatable, corrosion-resistant, and easy-to-form tubes used in HVAC, automotive, chemical, and architectural applications. Shenzhen Chinalcometal supply 3003 seamless tube from min.6mm to max. 300mm in length customized .
Why Choose 3003 H14 H112 Aluminum Seamless Tubes?
1. Excellent Corrosion Resistance – Especially in marine, chemical, and HVAC environments.
2. Good Formability and Weldability – Easy to bend, flare, or join by welding or brazing.
3. Non-sparking and Non-magnetic – Safe for use in sensitive or explosive environments.
4. Smooth Internal Finish – Reduces fluid friction in hydraulic and HVAC applications.
5. Cost-Effective – Lower cost than 5xxx or 6xxx series alloys for non-structural applications.
Typical Size of 3003 H14 H112 Aluminum Seamless Tubes
Alloy 3003 | Range |
Temper | H14,H112,HO |
Outer Diameter (OD) | 6 mm – 300 mm |
Wall Thickness | 0.5 mm – 20 mm |
Length | 100mm--- 6000 mm (custom lengths available) |
Mechanical Properties of 3003 H14 H112 Aluminum Seamless Tubes
Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Typical Hardness (HB) |
O (Annealed) | 95 – 130 | 35 – 60 | 30 – 40 | 28 |
H14 (Half Hard) | 130 – 180 | 115 – 150 | 5 – 10 | 40 – 50 |
H112 | 120 | 45 | 25 | 35 |
Chemical Composition of 3003 H14 H112 Aluminum Seamless Tubes
Element | Content (%) |
Aluminum (Al) | Balance |
Manganese (Mn) | 1.0 – 1.5 |
Copper (Cu) | 0.05 – 0.20 |
Silicon + Iron (Si + Fe) | ≤ 0.7 |
Zinc (Zn) | ≤ 0.1 |
Others (each) | ≤ 0.05 |
Applications of 3003 H14 / H112 Aluminum Seamless Tubes
3003 H14 and H112 aluminum seamless tubes are widely used in the automotive industry for components such as fuel and oil lines, radiator and coolant piping, air conditioning and heater tubing, as well as brake ventilation and exhaust heat shields. Their corrosion resistance, lightweight nature, excellent formability, and thermal conductivity make them ideal alternatives to steel in non-pressurized systems, improving cooling efficiency and withstanding vibration and thermal cycling.
In HVAC and refrigeration systems, these seamless tubes are commonly found in evaporator and condenser coils, air conditioning manifolds and headers, and dehumidifiers or refrigeration piping. The smooth inner surface of the tubes enhances refrigerant flow and heat exchange, while their ease of bending and flaring ensures leak-free joints, making them highly suitable for complex installations.
For industrial and mechanical equipment, 3003 aluminum tubes serve in low-pressure hydraulic systems, pneumatic controls, and low-temperature heat exchangers. Their corrosion resistance, non-sparking properties, and compatibility with Freon and other refrigerants ensure safe and durable operation in compressed air, oil, and heat transfer applications.
In marine and offshore environments, the tubes are applied in freshwater supply and drainage systems, cooling pipes in marine engines, and boat handrails or frames. Their long service life, resistance to seawater, and lightweight yet decorative qualities make them ideal for both functional and aesthetic purposes in humid and corrosive conditions.
The chemical and food processing industry benefits from the tubes’ability to handle mild acids, alkalis, and potable liquids. They are used in chemical piping, food and beverage processing lines, as well as cleaning and spray systems, offering corrosion resistance, hygienic surfaces, and easy maintenance.
In architecture and construction, 3003 aluminum seamless tubes are employed for handrails, ladders, guardrails, air ducts, cable conduits, decorative trims, and frames. Their smooth finish, corrosion resistance, lightweight nature, and good bendability make them versatile for structural, functional, and decorative purposes in buildings.
For electrical and energy systems, the tubes act as conduits for electrical wiring and heat dissipation channels in solar panels or battery systems. Their non-magnetic properties, corrosion resistance, and excellent thermal conductivity help protect cables while facilitating effective temperature control.
Finally, in medical and laboratory equipment, the tubes are used for laboratory cooling coils and medical gas delivery lines. Their lightweight, non-reactive, corrosion-resistant, and easy-to-clean surfaces make them suitable for transporting oxygen, nitrogen, and other medical or laboratory fluids safely.
