National

Code

Essential Components(%)

Melting

Temperature

(℃)

Intensity

of tension

(/Mpa)

Features and Application

Ag

Cu

P

BCu93P

(HL201)

-

Remainder

6.8-7.5

710-800

470

Brazing with good fluidity, suitable for copper and copper alloy which brazing material without impacting load

BCu80PAg

(HL204)

14.5-15.5

Remainder

4.8-5.3

645-815

503

Suitable for the condition that the requirement for brazing is higher than BCu89PAg. And the best one of phosphor copper brazing metals for the features of joint plasticity, strength, electric conductivity and overflow.

BCu89PAg

(HL205)

4.8-5.2

Remainder

5.8-6.7

640-800

519

The joint plasticity, strength, electric conductivity and overflow is better and suitable for brazing of copper and copper alloy

BCu91PAg

(HL209)

1.8-2.2

Remainder

6.8-7.2

684-710

 

With good brazing features, suitable for the brazing of copper and copper alloy in refrigerator, air-condition, generator and instrument etc

Attention:

1.         The residue such as grease, oxide etc on the surface and connection must be removed strictly before the brazing.

2.         The welding flux for brazing of the other alloys shall be used except copper and silver.