Description

Air Conditioning Aluminum Pipes are hollow metal tubes made from pure aluminum or aluminum alloys through extrusion processing. They are primarily used in refrigerant transport and heat exchange stages (such as evaporators and condensers) in air conditioning systems.

Air Conditioning Aluminum Pipes typically use 3xxx, 5xxx, or 6xxx series aluminum alloys, formed through hot extrusion. They are available in seamless aluminum tubes and ordinary extruded tubes. These include round tubes, aluminum square tubes, and microchannel aluminum flat tubes (containing multiple microchannels internally, with a wall thickness typically less than 0.2mm) used in heat exchangers.

Characteristics of Air Conditioning Aluminum Pipes:

Air Conditioning Aluminum Pipes are primarily used as a cost-reduction solution by replacing copper with aluminum. Their core characteristics are low cost and light weight, but they are significantly weaker than Air Conditioning Copper Tubes in terms of corrosion resistance, pressure resistance, and long-term reliability.

1. Low Cost: Aluminum costs approximately one-third the price of copper and has only one-third the density, significantly reducing manufacturing costs and equipment weight.

2. Corrosion Resistance and Enhancement: The surface of Air Conditioning Aluminum Pipe can be treated with zinc spraying, anodizing, etc., to improve its corrosion resistance and adapt to general environments.

Applications of Air Conditioning Aluminum Pipe:

Air Conditioning Aluminum Pipe primarily serves as a refrigerant transport channel and heat exchange medium carrier. In air conditioning systems, it plays a core role in connecting indoor and outdoor units and participating in heat exchange. Specific applications include:

1. Indoor/Outdoor Unit Connection Piping: Air Conditioning Aluminum Pipe is used to connect the indoor and outdoor units, transporting liquid and gaseous refrigerants. Although traditionally copper pipes are commonly used, some models employ aluminum pipes or “copper-aluminum joints” to reduce cost and weight, requiring special processes to prevent leaks.

2. Core Component of Heat Exchangers: Air Conditioning Aluminum Pipe is widely used inside condensers and evaporators as the flow channel in microchannel heat exchangers (parallel flow heat exchangers). By increasing the number of pipes or designing an internal thread structure, the low thermal conductivity of aluminum is compensated for, achieving efficient heat exchange.

3. Automotive air conditioning system: Due to the extremely high demand for lightweighting, automotive air conditioning high-pressure pipes and heat exchangers are almost entirely made of aluminum pipes to reduce vehicle weight and improve fuel economy.

Product Details and Specification

Product	Aluminum Pipe Tube
Standard	ASTM/ JIS/ GB/ DIN/ BS/ GOST
Thickness (mm)	Thin	0.15-2.0
	Conventional	2.0-6.0
	Middle	6.0-25.0
	Thick	25-200
	Super thick	>200
Status	F XX	Free processing
	O XX	Annealed
	H XX	Work hardening
	W XX	Solid solution heat treatment
	T XX	Heat treatment
Surface	Polyester spraying, power spraying, fluorocarbon spraying, PE film, Mill, Bright, Polished, Hairline etc.
Application	Lighting /Solar reflective sheet/Building appearance/Interior decoration: ceiling, wall/Furniture, cabinets/Elevator/Signs, nameplates, luggage/Interior and exterior decoration of automobiles/Interior decorations: such as Frame/household appliances: refrigerators, microwave ovens, audio equipment/Aerospace aspects/Machining parts processing/Mold manufacturing/Chemical industry/heat preservation pipe coating/High-quality ship board

Features of aluminum product series

Composition	Grade	Property
Pure Aluminum (>99%)	1XXX	No less than 99% aluminum. Excellent corrosion resistance, high thermal and electrical conductivity, low mechanical properties and excellent machinability
Al-Cu	2XXX	Good strength, being the ideal material for manufacturing parts, but the corrosion resistance is weaker
Al-Mn	3XXX	Also known as rust-proof aluminum
Al-Si	4XXX	Commonly used as welding materials, commonly used as building materials. After anodized surface treatment, it will appear dark gray.
Al-Mg	5XXX	Hardened aluminium alloy, suitable for marine climates
Al-Mg/Si	6XXX	Good formability, weldability, machinability and relatively good corrosion resistance
Al-Zn	7XXX	Commonly used in aircraft fuselage structures, mobile equipment and other high-strength parts
Al-Others	8XXX	Good electrical conductivity

COMMON AL & AL ALLOY COMPARISION TABLE

Type/Standard	GB	ASTM	BS	JIS	NF	DIN	GOST
Industrial Pure Al	1A99	1199				A199.99R	A99
	1A97					A199.98R	A97
	1A95						A95
	1A80		1080(1A)	1080	1080A	A199.90	A8
	1A50	1050	1050(1B)	1050	1050A	A199.50	A5
Anti-rust Al	5A02	5052	NS4	5052	5052	AlMg2.5	Amg
	5A03		NS5				AMg3
	5A05	5056	NB6	5056		AlMg5	AMg5V
	5A30	5456	NG61	5556	5957
Hard Al	2A01	2036		2117	2117	AlCu2.5Mg0.5	D18
	2A11		HF15	2017	2017S	AlCuMgl	D1
	2A12	2124		2024	2024	AlCuMg2	D16AVTV
	2B16	2319
Forging Al	2A80			2N01			AK4
	2A90	2218		2018			AK2
	2A14	2014		2014	2014	AlCuSiMn	AK8
Super Hard Al	7A09	7175		7075	7075	AlZnMgCu1.5	V95P
Froging Al Alloy	ZAlSi7Mn	356.2	LM25	AC4C		G-AlSi7Mg
	ZAlSi12	413.2	LM6	AC3A	A-S12-Y4	G-Al12	AL2
	ZAlSi5CulMg	355.2					AL5
	ZAlSi2Cu2Mgl	413		AC8A		G-Al12(Cu)
	ZAlCu5Mn						AL19
	ZAlCu5MnCdVA	201
	ZAlMg10	520.2	LM10		AG11	G-AlMg10	AL8
	ZAlMg5Si					G-AlMg5Si	AL13