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Copper-Phosphorous series filler metals

Copper-Phosphorous series filler metals
  • Product Details

一、 Note the use of
　　The copper - phosphorus filler metals with good fluidity are a kind of copper and phosphorus two elements alloy base or copper ,phosphorus and sliver three elements . They can adopt contact welding ,oxyfuel gas welding , high frequency welding and furnace welding .
The copper - phosphorus alloy with sliver will greatly improve wettability , strength toughness
and lower melting point .These products are mainly applied on the refrigeration , air conditioner ,water heater as well as transformer , motor , instruments and meters etc .
The copper - phosphorus filler metals are suitable to braze copper, brasses but they can not be
suitable to braze ferrous . The phosphorus in the filler metals can reduce oxide of copper and oxide of sliver as brazing flux , so you don't need it when you braze copper and sliver with the copper - phosphorus filler metals , but you should make up the right flux in order to get good braze when you braze copper alloy because the phosphorus can't fully reduce the oxide formed by copper alloy element .
Before brazing , you should clear away all dirt on the brazed place and on the surface of object
to be brazed such as greasy dirt , oxide and so on , the best brazed joints is between 0.03mm to 0.075mm .
The heat speed should be quick as possible when brazing in order to avoid the flat of the filler
metals because of slow heat process . The copper color will be return if it is dipped into 10 percent of sulphuric acid solution .
二、 Product specifications

1、The welding wires series :
The plate-shaped welding wires whose diameters are between 0.8mm to 3.0mm .
2、 The brazing rods series :
The stick-shaped rods whose diameters are between 0.8mm to 4.0mm and the flat-shaped rod whose specification is 1.3mm×3.15mm .
3、 The brazing rings series :
Various specification whose diameters are between 0.8mm to 2.5mm and whose internal diameter is more than 3.5mm .
The main purpose is to satisfy the automation production line .

The basic data of Copper-Phosphorous series filler metals

Brazing
Alloys

Chemical Composition（%）

Melting Range℃

Working Temperature℃

Trensileσb N/mm2

Equal to foreign alloy standards

P

Ag

Sn

other

Cu

All impurities

Solidus

Liquidus

BCu95P 

4.8~5.3 

/

/

/

余量

＜0.10

710

925 

790~945



BCu93P

6.8~7.5 

/

/

/

710

800

730~840

470

 U.S.A Bcup-2

BCu94P

5.9~6.5

/

/

/

710

890




BCu93P-A

7.0~7.5

/

/

/

710

793




BCu93P-B

6.6~7.4

/

/

/

710

820




BCu92P

7.5~8.5

/

/

/

710

750

730~830



BCu91PAg

6.8~7.2

1.8~2.2

/

/

645

790

730~810


U.S.A Bcup-6

BCu89PAg

5.8~6.7

4.8~5.2

/

/

645

805

730~820

519

U.S.A
Bcup-3

BCu88PAg

6.5~7.0

4.8~5.2

/

/

643

771

730~800


U.S.A Bcup-7

BCu84PAg

6~7

9~11

/

/

647

655

650~700



BCu80PAg

4.8~5.3

14.5~15.5

/

/

645

800

704~810

499

U.S.A
Bcup-5

BCu75PAg

6.5~7.5

17~19

/

/



645

670

700~780


E.E.C
 CP101

BCu86PSn

6~7

/

6~7

/



640

700

680~750



BCu88PAg

6.5~7.0

4.8~5.2

/

/



643

771




BCu87PAg

7.0~7.5

5.8~6.2

/

/



643

813




BCu92PSb


5.8~6.7

/

/


 Sb1.5~2.5

690

800

700~810

303

BCu91PSn

6.5~7.5

/

1.5~2.5

/



660

710

700~750




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