Aluminum grooved tube for heat exchanger

We are a manufacturer of grooved tube aluminum in Changzhou city

Inner grooved tubes will improve the heat transfer performance of the heat exchanger solution.

 Features:

• Material alloy grade:3003,3103
• Temper: O, H12 and H14
• threaded aluminum tube
• length: LWC aluminum tube
• maximum fin high:0.38mm

Technical parameter:

• Processing：Cold extruded and annealing online
• Pipe Tensible strength: >120Mpa
• Tube Elongation: >35%
• Bursting pressure > 1800 PSI
• Surface quality: smooth and neat 

Parameter for grooved tube

 

Spec	Bottom wall thick	Fin High	Groove number	Helix angle	Top angle
Φ5mm	0.3-0.4	0.05-0.38	40-50	18°	50°
Φ7mm	0.4-0.5	0.05-0.38	40-50	18°	50°
Φ9.52mm	0.45-0.55	0.05-0.38	45-55	18°	50°
Φ7.94mm	0.4-0.5	0.05-0.38	40-50	18°	50°

Alloy grade.

3003 Aluminum chemical composition

Grade	Si	Fe	Cu	Mn	Zn	Al
3003	0.6	0.7	0.05-0.2	1.0-1.5	0.1	99.3%

3003 alloy grad we call it antirust aluminum. it has good corrosion and passes 500 hours salt spray testing

 

Processing technology 

How does cold extrusion model work for the aluminum tube?

the first step is extruded by casting and rolling machine,

the second step is cold drawing to be more strength

and the third step is on annealing to be flexible soft aluminum tubing.

precision drawing tubes on the aluminum industry.

 

Application:

• Heat exchanger
• Aluminum tube condensers and evaporators
• Aluminum fin coils
• AHU coils products

Warranty:

• 60% high thermal conductivity more than smooth aluminum tubing
• 1000 hours of salt spray testing
• Rohs certification environmentally

PS: what is different from smooth inner aluminum tubing?