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Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of 15mm copper pipe in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.

Products Description

15mm copper pipe

The 15mm copper pipe is a versatile and industry-standard sized tube, widely recognized for its reliability in plumbing, heating, and refrigeration systems. Manufactured in accordance with international standards such as ASTM B88 (Type L/K/M for water) and EN 1057, it ensures consistent quality, durability, and safety. This pipe typically has an outer diameter of 15mm and is available in various wall thicknesses (e.g., 0.7mm for Type M, 1.02mm for Type L) to handle different pressure ratings. Its excellent thermal conductivity, corrosion resistance, and ease of installation make it the preferred choice for potable water distribution, radiant heating, hydronic systems, and HVAC/R applications worldwide.

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Copper Pipe/Tube General Specification Table (Based on ASTM B88)

Nominal Size: The standard reference size (often related to the inner diameter historically).

Outer Diameter (OD): The actual outside diameter of the pipe (mm).

Type K: Thickest walls, for underground services, main water lines, and high-pressure applications.

Type L: Medium thickness, the most common for domestic potable water systems and heating.

Type M: Thinnest walls, used for low-pressure residential water lines and drain/vent applications.

Nominal Size (mm)	Outer Diameter (OD) mm	Wall Thickness & Weight (Per Meter)
		Type K	Type L	Type M	Common Applications
		Wall (mm) / Kg/m	Wall (mm) / Kg/m	Wall (mm) / Kg/m
6	6.00	0.91 / 0.13	0.76 / 0.11	-	Ice makers, humidifier lines
8	8.00	1.02 / 0.20	0.81 / 0.16	-	Individual water supply lines
10	10.00	1.14 / 0.28	0.89 / 0.22	-
12	12.00	1.27 / 0.38	1.02 / 0.31	-
15	15.00	1.27 / 0.48	1.02 / 0.39	0.71 / 0.28	General plumbing, branch water lines
18	18.00	1.40 / 0.65	1.14 / 0.53	-
22	22.00	1.52 / 0.86	1.27 / 0.73	0.91 / 0.53
28	28.00	1.78 / 1.29	1.40 / 1.04	1.07 / 0.81	Main water lines, heating systems
35	35.00	2.03 / 1.85	1.52 / 1.41	1.14 / 1.07
42	42.00	2.29 / 2.50	1.65 / 1.85	1.27 / 1.43
54	54.00	2.67 / 3.60	1.91 / 2.63	1.52 / 2.11	Main water service, commercial HVAC
67	67.00	3.05 / 5.38	2.16 / 3.88	1.65 / 2.99
79	79.00	3.40 / 7.08	2.41 / 5.14	1.91 / 4.11
105	105.00	3.76 / 10.57	2.77 / 7.87	2.16 / 6.19

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Everything You Need to Know

When purchasing copper pipe, there are several factors to consider

1. Purpose:

First of all, it is necessary to clarify the purpose of the copper pipe, whether it is used for cold water pipes, hot water pipes, air conditioning pipes, or other purposes. Copper pipes for different uses have different requirements for material, thickness, specifications, etc.

Cold water pipes: Usually copper pipes or oxygen-free copper pipes are used, and the thickness should be selected according to the water pressure and pipe diameter.
Hot water pipes: Oxygen-free copper pipes or phosphorus deoxidized copper pipes are usually used, and the thickness should be selected according to the water pressure and pipe diameter.
Air-conditioning pipes: Usually copper pipes or oxygen-free copper pipes are used, and the thickness should be selected according to the pressure of the refrigerant and the diameter of the pipe.
Other uses: such as craft pipes, musical instrument pipes, etc. The appropriate copper pipe material and specifications can be selected according to specific requirements.

2. Material

The main materials of copper tubes include red copper, oxygen-free copper, phosphorus deoxidized copper, etc.

Copper: It has good electrical and thermal conductivity, but its strength is low and it is easy to oxidize.
Oxygen-free copper: Based on red copper, the oxygen content is further reduced, and the strength and corrosion resistance are improved.
Phosphorus deoxidized copper: Adding phosphorus element to the copper can remove the oxygen in the copper and improve the strength and processing performance of the copper tube.

3. Thickness

The thickness of copper pipe is usually expressed in millimeters (mm). The thicker the copper pipe, the stronger its pressure-bearing capacity, but the higher the price. The appropriate thickness should be selected according to the usage requirements.

4. Specifications

Copper pipe specifications are usually expressed in terms of outer diameter and wall thickness in millimeters (mm). For example, Ø25×1.0 represents a copper pipe with an outer diameter of 25 mm and a wall thickness of 1.0 mm.

Products specifications

Type	straight copper tubing,pancake coil copper tubing,capillary copper tubing
Standard	GB/T17791-2007,GB/T1527-2006, GB/T18033-2007, YS/T450-2002 ASTM B280,ASTM B68,ASTM B75,ASTM B88 EN12735,AS1571,JIS H3300,etc.
Material	ASTM : Copper (C10200,C11000,C10100,C10200,C12000,)C11600, Brass(C21000,C22000,C23000,C24000,C26000,C27000,C27200,C27400,C2 800,C31400,C33000,C35600,C37100,C36000,C35300,C37100,C37700,C37 710,C37000,C68700,C41100,C44300,C46200.C46400,C26130,C65600,)
Pipe shape	Round, square, rectangular
Pipe specification	Round Wall thickness:0.2mm-120mm OD:2mm-910mm
Round	Wall thickness:0.2mm-120mm
Round	OD:2mm-910mm
Pipe length	Single Random, Double Random & Required Length
Surface treatment	mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required.

Classification	GB	ISO	ASTM	JIS	BS	DIN	EN
Red copper	TU2	Cu-OF	C10100	C1011	C101	OF-CU	CW008A
	T2	Cu-FRHC	C11000	C1100	C101	E-CU58
	TP2	CU-DHP	C12200	C1220	C106	SF-CU	CW024A
	TP1	CU-DLP	C12000	C1201		SW-CU	CW023A
sliver-copper	TAg0.1	CUAg0.1	C10400	C1040		CuAg0.1
Brass	H90	CuZn10	C22000	C2200	CZ101	CUZn10	CW501L
	H70	CuZn30	C26000	C2600	CZ106	CUZn30	CW505L
	H68		C26200	C2620		CUZn33	CW506L
	H65	CuZn35	C27000	C2700	CZ107	CUZn36	CW507L
	H63	CuZn37	C27200	C2720	CZ108	CUZn37	CW508L
	H62	CuZn40	C28000	C2800	CZ109		CW509L
Tin bronze	QSn4-0.3	CuSn4	C51100	C5111	PB101	CUSn4	CW450K
	QSn4-0.3	CuSn5	C51000	C5101		CUSn5	CW451K
	QSn6.5-0.1	CuSn6	C51900	C5191	PB103	CUSn6	CW452K
	QSn8-0.3	CuSn8	C52100	C5210		CUSn8	CW453K
	QSn6.5-0.4
Zinc-copper-nickel alloy	BZn18-18	CuNi18Zn20	C75200	C7521	NS106	CuNi18Zn20	CW409J
	BZn18-26	CuNi18Zn27	C77000	C7701	NS107	CuNi18Zn27	CW410J
	BZn15-20			C7541
	BZn18-10			C7350

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We have 20 years of experience in the copper industry

Cold water pipes

Cold water pipes usually use copper pipes or oxygen-free copper pipes, and the thickness should be selected according to the water pressure and pipe diameter.

Copper tubes have good electrical and thermal conductivity and are relatively cheap, but have low strength and are easily oxidized. Therefore, they are generally used in cold water pipe systems with low water pressure and dry installation environments.

Oxygen-free copper pipes further reduce the oxygen content on the basis of red copper, and their strength and corrosion resistance are improved. Therefore, they are more suitable for cold water pipe systems with high water pressure and humid installation environment.

Hot water pipes

Hot water pipes usually use oxygen-free copper pipes or phosphorus deoxidized copper pipes, and the thickness should be selected according to the water pressure and pipe diameter.

Oxygen-free copper pipes further reduce the oxygen content on the basis of red copper, improve the strength and corrosion resistance, and can withstand higher water pressure and temperature, so they are a commonly used material for hot water pipes.

Phosphorus deoxidized copper pipes add phosphorus elements to red copper, which can remove oxygen from the copper, improve the strength and processing performance of the copper pipes, and have good corrosion resistance, so they are also suitable for hot water pipe systems.

Advantages of copper pipes in industrial applications

Durable: Copper pipes have high strength and toughness, can withstand high pressure and high temperature, and have a long service life.
Good electrical conductivity: Copper has good electrical conductivity, so copper pipes can be used to transmit electricity and signals.
Strong corrosion resistance: Copper has strong corrosion resistance and can withstand the erosion of a variety of acids, alkalis, salts and other corrosive media.
Easy to process: Copper pipes are easy to bend, weld and other processed, so they can be easily installed and repaired.

air conditioning pipes

The material selection of air conditioning pipes should follow the following principles:

The higher the refrigerant pressure, the stronger the copper tube, such as oxygen-free copper tube, should be selected.
The more humid the installation environment, the better corrosion-resistant copper pipes should be selected, such as oxygen-free copper pipes.

Copper tubes have good electrical and thermal conductivity and are relatively cheap, so they are a common material for air conditioning ducts.

Oxygen-free copper pipes further reduce the oxygen content on the basis of red copper, and their strength and corrosion resistance are improved. Therefore, they are more suitable for air conditioning pipe systems with high refrigerant pressure and humid installation environment.

Why choose us

As a leading supplier of copper pipes, we are committed to providing our customers with the highest quality products, exceptional service, and competitive pricing. Here are just a few reasons why you should choose us for your copper pipe needs:

Unmatched Quality:

We utilize state-of-the-art equipment and rigorous quality control processes to ensure every copper pipe we produce meets the highest standards. Our commitment to quality is further emphasized by our adherence to international standards such as ISO and SGS.

Unmatched Quality:

Reliable Supply:

We maintain a robust inventory and strong relationships with our suppliers, guaranteeing we can fulfill your copper pipe needs promptly and efficiently. Our consistent monthly output ensures we can handle large projects without delays.

Fast Delivery:

Our streamlined production and logistics processes ensure efficient copper pipe production and swift delivery. We understand the importance of meeting deadlines, and we prioritize fast turnaround times to keep your projects on track.

Exceptional Customer Service:

Our dedicated sales team is comprised of multilingual professionals who can assist you in Spanish, Portuguese, French, Arabic, and Russian. We are committed to providing clear communication and exceptional service throughout the entire buying process.

Value-Added Services:

In addition to our core products, we offer a variety of value-added services to meet your specific needs. These may include cutting and prepping copper pipes to your exact specifications, providing on-site consultations, or offering customized packaging solutions.

we are here for you

If you need more information, please let us know. We are always available.

write to us

Email: office@dongmjd.com

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Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province

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Number: +86 15769214734

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15mm Copper Pipe - Frequently Asked Questions (FAQ)

1. What is 15mm copper pipe?

15mm copper pipe is a round pipe with an outer diameter of 15 mm, made of high-purity copper. It is one of the industry standard sizes used in residential and commercial projects for transporting water, gas, and refrigerants, and is known for its superior durability, corrosion resistance, and thermal conductivity.

2. What are the main uses of 15mm copper pipe?

Its main uses include:

Residential and commercial piping systems: Ideal size for hot and cold water supply piping, especially for connections to faucets, toilets, and branch lines.

Heating systems: Used for radiator connections, underfloor heating systems, and boiler connections.

HVAC/R (Heating, Ventilation, Air Conditioning, and Refrigeration): Used for refrigerant lines, oil lines, and certain hydraulic systems.

3. What international standards does 15mm copper pipe meet?

Yes, our 15mm copper pipe meets stringent international standards, ensuring quality and performance. Key standards include:

ASTM B88: A standard specification for copper pipes used in the United States and many international markets for water supply and other applications.

EN 1057: A European standard specifying the dimensions and tolerances for copper and copper alloy water pipes.

GB/T 18033: A Chinese national standard.

4. What are the differences between types K, L, and M? Which one should I choose?

These three types represent different wall thicknesses to accommodate different pressure requirements.

Type K: Thicker wall thickness, strongest pressure resistance. Typically used for main lines, underground pipes, and high-pressure applications.

Type L: Medium wall thickness, the most commonly used type, suitable for most residential hot and cold water piping systems.

Type M: Thinnest wall thickness, suitable for low-pressure, low-cost domestic water supply systems (where permitted by regulations in certain areas).

For most indoor branch water pipe applications, Type L is the most common and recommended choice.

5. What is the outer diameter of a 15mm copper pipe?

According to ASTM and EN standards, the outer diameter of 15mm copper pipe is precisely 15.00 mm. This is a nominal size; the actual outer diameter is fixed. The difference between different types (K, L, M) lies in the wall thickness and inner diameter.

6. What are the connection methods for copper pipes?

15mm copper pipes can be connected in several ways, including:

Bragging/Silver Soldering: The strongest and most permanent connection method.

Soldering/Tin Soldering: Suitable for low-temperature and low-pressure systems.

Crimping: Using power tools and specialized fittings, installation is quick and requires no open flame.

Crimping: Similar to crimping, very popular in Asian and European markets.

Flanged Connection: Commonly used in refrigeration and gas applications.

7. What are the advantages of copper pipes compared to PEX or PPR pipes?

Long Lifespan: Service life can exceed 50 years.

High Temperature and High Pressure Resistance: Excellent performance and less prone to aging.

Antibacterial Properties: The copper surface naturally inhibits bacterial growth, contributing to drinking water safety.

Dimensional Stability: Unaffected by UV radiation and resistant to deformation at high temperatures.

High Value: Widely recognized as a premium material that enhances property value.

8. How to store and handle copper pipes?

Store in a clean, dry environment, avoiding contact with corrosive chemicals. Handle with care to prevent surface scratches and deformation. Straight pipes should be stored flat, and coiled pipes should be protected from sharp bends.

9. What surface treatments do you offer for 15mm copper pipes?

We typically offer both bare copper and pre-coated types. Pre-coated pipes have a protective layer on the outer wall at the factory, facilitating welding and providing some corrosion protection.

10. Can I get a sample?

Yes, we are happy to provide samples to eligible customers so you can evaluate the quality. Please contact our sales team for more information.

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