Aluminium Sheet Coil for Automobile Heat Exchanger Alloy (3003/4047/4104/4A13)

• Application: Transportation Tools, Auto/Automotive
• Certification: ISO9001, ASTM, GB
• Technique: Hot Rolled/Cast Rolled
• Grade: 3000 Series 4000 Series
• Temper: O/H16/H18
• Surface Treatment: Mill Finish
• Model NO.: 3003/4047/4104/4A13
• Alloy: Alloy
• Thickness: 0.05-0.7mm
• Clad Rate: None
• Transport Package: Export Standard Wooden Pallet
• Specification: According to Customer Requirement
• Trademark: Chalco Aluminum
• Origin: Henan China
• HS Code: 7606119000
• Production Capacity: 10000mt/Month

Product Description

Aluminium Sheet Coil For Automobile Heat Exchanger Alloy (3003/4047/4104/4A13)

Most of aluminum heat exchangers are brazed in controlled atmosphere brazing (CAB) furnaces,
using fluxes to remove the oxide layer on the brazing sheet surface. This study rather focuses on
plates and fins heat exchangers brazed under secondary vacuum. They consist of alternative 4004
(clad) / 3003 (core) brazing sheets and 3003 fins. The clad layer melts and flows when the brazing
temperature is reached (around 590°C), permitting the junction between the parts to be assembled.
Here, magnesium in the 4004 alloy plays the role of the flux [1]. A certain amount of it evaporates
above 400°C which disrupts the oxide layer and acts as a getter to prevent from re-oxidation during brazing.
 
*Excellent collapse resistance and strength after brazing 
 
*Good mechanical property and surface condition 
 
*Various specifications for soldering sheet 



 

Performance index of heating element fin material
Alloy	Temper	Thickness (mm)	Tolerance (mm)	Clad rate(%)	Mechanical property
					Tensile Strength (MPa)	Yield Strength (MPa)	Elongation Min.(%)
3003	O	0.2~0.30	±0.01	None	100~150	≥45	15
3003	H16	0.5~0.70	±0.02	None	150~210	≥120	1
4047	H18	0.05~0.1	±0.005	None	≥200	≥170	0.5
4A13	H18	0.05~0.1	±0.005	None	≥190	≥16	0.5
4104	H18	0.05~0.1	±0.005	None	≥220	≥190	0.5
*Alloy,specification and mechanical property can be customized according to different requirement.