Wholesale High Quality Phosphor Copper Brazing Rods from China Factory - Reliable Suppliers for Copper Brazing Alloys Supplier, Suppliers

Copper brazing alloys are specialized materials designed for brazing applications on copper substrates. These alloys are typically characterized by their low melting points, enabling them to melt and seamlessly fill joint gaps without affecting the integrity of the copper substrate. This results in a strong metallurgical bond that ensures durability and reliability. As a leading factory in China, we provide high-quality copper brazing alloys to meet the diverse needs of our clients. Our products stand out among suppliers for their exceptional performance and consistency, making us a trusted partner in the industry

Product Description

Material

Cu, P.

Advantages

Easy to install and disassemble: Good fluidity during welding, can flow into small spaces.

Moderate melting point: Good fluidity during welding, perfect performance under gas flame, induction and furnace brazing methods, outstanding oxidation resistance at high temperature, excellent corrosion resistance and fatigue resistance after welding, suitable for high temperature and high pressure environment.

Good joint strength and conductivity: It can quickly transfer heat and achieve precise temperature control, ensuring stable and efficient welding process, perfect for MAPP, MAP, propane and oxygen acetylene gas welding gun settings.

No need to use brazing flux: When brazing copper with copper-phosphorus brazing alloy, the phosphorus in the brazing alloy plays the role of brazing flux.

Application Scope

A popular and economical solution for HVAC, plumbing and mechanical repairs, used for brazing of copper and copper alloys in motor, instrumentation and refrigeration industries, very suitable for gas welding, contact welding and some furnace welding, suitable for brazing copper to copper, brass and bronze joints in air conditioners, freezers, evaporators, heat exchangers, water heaters, etc.

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Product Parameters

Code

Related Standard

Chemical Composition

Melting Temperature

Code

Related Standard

P%

Cu%

Solidus℃

Liquidus℃

JCuP-1

CWA:BCu92P

7.5-8.5

REM

710

780

JCuP-1

CWA:BCu92P

JCuP-2

CWA:BCu93P AWS:BCuP-2

6.5-7.5

REM

710

800

JCuP-2

CWA:BCu93P AWS:BCuP-2

JCuP-3

6.1-6.8

REM

710

820

JCuP-3

Product Size

BCuP-2 Brazing Rods Size

Flat

1.3x3.2x457mm

1.3x3.2x500mm

Square

3.2x3.2x500mm

Round

1.5x500mm

2.0x500mm

3.0x500mm

Note: All sizes are standard, other sizes can be produced according to customer requirements.

Photos

Copper brazing alloy (1)
Copper brazing alloy (2)
Copper brazing alloy (3)

Package

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Copper-brazing-alloy--5

Standard export seaworthy packing: with polyethylene film including drier, put them in carton; 5.67kgs/pvc bag, 11.34kgs/carton box;or 5kgs/pvc bag, 10kgs/carton box;

Certificates

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Frequently Asked Questions

What is the chemical composition of this copper brazing alloy?

This copper brazing alloy is primarily composed of Copper (Cu) and Phosphorus (P), with phosphorus content ranging between 6.1% and 8.5% depending on the specific product code (JCuP-1, JCuP-2, JCuP-3).

Do I need to use additional flux when brazing copper joints?

No, when brazing copper to copper, the phosphorus inside the alloy acts as an active brazing flux. However, a suitable flux may be required when brazing brass or bronze joints.

What is the melting temperature range of BCuP-2 brazing rods?

The BCuP-2 (JCuP-2) alloy has a solidus temperature of 710°C (1310°F) and a liquidus temperature of 800°C (1472°F), providing excellent fluidity and performance under gas flame heating.

What industries and applications are these brazing alloys suitable for?

They are ideal for HVAC, plumbing, and mechanical repairs. Typical applications include brazing copper and copper alloy joints in air conditioners, freezers, heat exchangers, evaporators, and water heaters.

Can you customize the sizes of the brazing rods?

Yes. While we offer standard flat, square, and round sizes (such as 1.3x3.2x500mm, 3.2x3.2x500mm, and 2.0x500mm), customized dimensions can be manufactured according to specific customer requirements.

How is the product packaged for standard export?

We use standard seaworthy export packaging: products are wrapped with polyethylene film including a drier, then packed into PVC bags (5kg or 5.67kg) and secured in carton boxes (10kg or 11.34kg).

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