CEWELD


L-CuPSn7 Brazing




L-CuPSn7

 
CATEGORY 
APPLICATIONS 
Suitable for gap brazing of copper and copper alloys. Joint-brazing at working temperatures between -20°C and +150°C. Do not use in sulphurous environment and on Fe- and Ni-alloys.
PROPERTIES 

Filler metal with good flowing properties and capillarity.  Colour very similar to brass. Soldering seam can be easily electroplated. Self pickling on copper to copper joints.

CLASSIFICATION
AWS 
A 5.8: no standard
EN ISO 
17672: CuP 386
DIN 
8513: L-Cu Sn P 7
SUITABLE FOR 

Brazing of copper, copper alloys, brass,

APPROVALS 
CE approved
WELDING POSITIONS: 
FILLER METAL ANALYSIS %

Ag

Cu

P

Sn

           

-

86

7

7

           
MECHANICAL PROPERTIES

Heat

RP0,2

Rm

Weight

operating temperature

Impact Energy (J) ISO-V

Melting range

Treatment

(N/mm2)

(N/mm2)

(g/cm3)

(°C)

-40°C

-60°C

(°C)

as brazed

 

250

8

690

   

645-695

               
REDRYING TEMPERATURE 
not required
BRAZING PARAMETERS / PACKING

Welding Parameters

flame type

Optimum brazing

Packing

D (mm)

Length (mm)

adjustment

Gab (mm)

kg tubes / cartons

kg / spools

2.0

500

neutral

0.06-0.15

1 / 5 / 20

1 till 10

3.0

500

neutral

0.06-0.15

1 / 5 / 20

1 / 5 / 25







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