Drawn Aluminium Tube/Profiles

Drawn Aluminium Tubes/Profiles Introduction

Precision-drawn aluminium tubes are the lightweight solution for standard heat exchangers manufactured with the mechanically expanded round tube, flat oval tubes, and other shapes of the tube as customized specifications.

The high-precision drawn aluminium tube (also called aluminium cold drawn tube) is widely used for heat exchanger, including aluminium round tube, internal thread tube (inner grooved tube), seamless collector tube (header pipe), old drawn aluminium tube, seamless drawn aluminium tube, capillary tube, peanut tube, etc. It is the key material for terminal products, such as home and commercial air conditioning evaporator and condenser, automobile air conditioning evaporator, radiator condenser, water tank, etc.

CHAL Aluminium Corporation is a fully integrated aluminium company that provides all kinds of aluminium products and technical solutions. The extrusion and drawn tube project started in 1998, CHAL is a high-tech enterprise specializing in the R&D and production of high precision aluminium drawn tube and profiles. We have advanced equipment, adopt advanced extrusion and drawing technology, CHAL is committed to providing innovative aluminium solutions with higher performance, better quality, and valued fabrication service. 

The Order Process of CHAL’s Products

Applications of Drawn Aluminium Tube

• HVAC/R: air conditioner, refrigeration, and another cooling system, (heat exchanger, evaporator, condenser, air cooler, water tank)
• Automotive: connection tubing, car engine manifolds
• Precision equipment
• Solar thermal
• Other industrial applications

Drawn Aluminium Tube Key Features

• Lightweight
• High heat transfer efficiency
• Easy to form and bend
• Low volume – high quality
• Corrosion resistance
• High precision and tight tolerances
• High surface quality

Drawn Aluminium Tube Capacity

CHAL Aluminium Corporation is one of the biggest aluminium products manufacturers in China. We are the leading supplier of drawn aluminium tubes and profiles. The overall production capacity exceeded 10000T in 2019.

Product Name	Annual Capacity
Round Aluminium Drawn Tube Smooth Round Tube	5000T
Drawn Aluminium Flat/Oval Tube.	2000T
Aluminium Inner Grooved TubeRifled tube & Straight inner-grooved tubes	3000T
Aluminium Inner Grooved Tube Rifled TubeHelical Inner Grooved Tube	1500T
Aluminium Inner Grooved TubeStraight Trough TubeStraight Inner Grooved Tubes	1500T
Seamless Collector Tube and Al-Al Composite Tube (Include D Type and Square Type Header Pipe)	2500T
Aluminium Capillary	800T
Aluminium Peanut Tube	500T
Aluminium Drawn Profiles (plate and bar profiles)	1000T
Aluminium Fiber	800T

Meeting your process and product specifications

When you choose precision-drawn profiles from CHAL, you are provided with the following services

• Designs tailored to your needs
• Dimensions, tolerances, and tempers that meet your specifications
• Coiled and cut-to-length solutions
• Process simulation
• Technical support

Main Advantages

• High precision and tight tolerances
• Tailored designs
• Optimal alloy composition for vacuum and CAB brazing process
• TS 16949 certification

Manufacturing Procedures

The manufacturing operation includes extrusion, cold drawing, zinc coating, and heat treatment(annealing), finishing dimension forming, degreasing and cleaning.

Quality Control

To get good quality, we must strictly control each step. 

• Raw material: we produce aluminium bar by ourselves, and detect each batch, ensure that the aluminium bar is pure, free of impurities, and the chemical composition meets customer requirements.
• Drawing and tooling: the importance of tooling is to ensure dimensional accuracy, through cold drawing to get high precision of dimension and tolerance. 
• Zinc coating: the tube with zinc spraying can greatly improve the corrosion resistance of aluminium tubes.
• Annealing: through annealing, the tube will get better elongation and better bending performance.