Brass and German Silver brazing solders


720 Special brass solder
721 Special brass solder
7211 Brass Solder, Brass welding wire
722 A Spezial brass solder
7503V German silver solder
Delivery forms

720 Special brass solder
Physico-
chemical Data
Type of brazing alloy Area of brazing
Base Metal
Flux
Brazing process
Welding alloy composition
Cu: 59 %

Sn: 1 %

Mn: 0,5 %

Si: 0,15 %

Fe+Ni: 0,5 %

Zn: Rest

DIN 8513:
L-CuZn39Sn

EN 1044:
CU 306

Braze welding/gap soldering

Weld brazing/Building up by brazing

Well controlable flowing,
For wide gaps suitable.
Out-of-position work is possible.

Well usable melting range.
Mild steel

Low-alloy steel

Malleable iron

Nickel

Copper

KMB-S 62

HP 64

V 87

Oktol 88

Flux "S"

ABA-FAG

Oxyfuel torch brazing
Gas fusion welding

Tensils strength of22
the braze joint

  430 N/mm2
Melting range
875 – 895 °C
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721 Special brass solder
Physico-
chemical Data
Type of brazing alloy Area of brazing Base Metal Flux Brazing process
Welding alloy composition Cu: 57,5 %

Sn: 0,9 %

Si: 0,2 %

Fe+Ni: 2,4 %

Zn: Rest

DIN 8513:
L-CuZn39Sn
Braze welding/gap soldering

Weld brazing/Building up by brazing

Well controlable flow
For wide gaps suitable.
Out-of-position work is possible.

Well usable melting range.

Mild steel

Low-alloy steel

Malleable iron

Nickel

Copper

KMB-S 62

HP 64

V 87

Oktol 88

Flux "S"

ABA-FAG

Oxyfuel torch brazing
Gas fusion welding

Tensils strength of22
the braze joint
450 N/mm2
Melting range
870 – 900 °C
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7211 Brass Solder, Brass welding wire
Physico-
chemical Data
Type of brazing alloy Area of brazing Base Metal Flux Brazing process
Welding alloy composition Cu: 59,5 %

Si: 0,25 %

Zn: Rest

DIN 8513:
L-CuZn40

EN 1044:
CU 306

Gap soldering/if necessary

Wide gaps/if necessary building up by brazing

Well flow
Gas fusion welding of various kinds of brass.

Welding wires is possible
Mild steel

Low-alloy steel

Malleable iron

Nickel

Copper

KMB-S 62

HP 64

V 87

Oktol 88

Flux "S"

ABA-FAG

Oxyfuel torch brazing
Gas fusion welding

Tensils strength of22
the braze joint
390 N/mm2
Melting range 890 – 900 °C
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722 A Special brass solder
Physico-
chemical Data
Type of brazing alloy Area of brazing Base Metal Flux Brazing process
Welding alloy composition Cu: 58 %

Si: 0,2 %

Sn: 0,6 %

Fe+Ni: 0,5 %

Zn: Rest

DIN 8513:
L-CuZn39Sn
Gap soldering/if necessary
Braze welding

Weld brazing/gas fusion welding

Light thin fluid
Also wide gaps or narrow grooves

Mild steel

Low-alloy steel

Malleable iron

Nickel

Copper

KMB-S 62

HP 64

V 87

Oktol 88

Flux "S"

ABA-FAG

Oxyfuel torch brazing
Gas fusion welding

Tensils strength of22
the braze joint
440-450 N/mm2
Melting range 870 – 890 °C
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7503V German silver solder
Physico-
chemical Data
Type of brazing alloy Area of brazing Base Metal Flux Brazing process
Welding alloy composition Cu: 48,5 %

Ni: 9,5 %

Fe: 0,2 %

Si: 0,2 %

Zn: Rest

DIN 8513:
L-CuNi10Zn42

EN 1044:
CU 306

Braze welding/gap soldering

Weld brazing/building up by brazing


Well controlable flowing
For wide gaps suitable
Out-of-position work is possible

Perfect brazing seams
Mild steel

Low-alloy steel

Malleable iron

Nickel

Nickel alloys

Copper

KMB-S 62

HP 64

V 87

Oktol 88

Flux "S"

ABA-FAG

Oxyfuel torch brazing
Gas fusion welding

Tensils strength of22
the braze joint
450-550 N/mm2
Melting range 890 – 910 °C
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Delivery forms:

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