Products

Nickel brazing filler metal

The BrazeLet® BNi family offers BNi-based filler metal powders suitable for different applications, brazing conditions and braze properties. Applications are found in a wide range of automotive as well as industrial areas. Typical automotive applications are EGR-coolers (Exhaust Gas Recirculation) for diesel as well as gasoline engines, catalytic converters and fuel rails. Brazed plate heat exchangers, heaters and boilers are common industrial applications.

BrazeLet® BNi

BrazeLet BNi2

For high strength when brazing stainless steel material in vacuum or protective atmosphere.

The Nickel-based brazing alloy BrazeLet® BNi2 provides high strength when brazing stainless steel material in vacuum or protective atmosphere. The brazing alloy is typically used for brazing heat exchangers such as EGR coolers in automotive or tap water applications in home or industry where high corrosion resistance is not required.

BrazeLet BNi2 contains boron as melting point depressants and can therefore be used at relatively low temperatures.

Composition

ISO 3677, B-Ni82CrSiBFe-970/1000
ISO 17672, Ni 620
ANSI/AWS A5.8, BNi-2
UNS N99620

Melting range

970-1000°C

Min. brazing temperature

1050°C

BrazeLet BNi5

Nickel-based brazing alloy suitable for applications working at very high temperatures.

BrazeLet® BNi5 is a Nickel-based brazing alloy with a good wetting behaviour on stainless steel material in vacuum or protective atmosphere brazing. 

The high level of alloyed chromium results in a good hot gas and acid corrosion resistance. The high melting range of BrazeLet BNi5 makes it suitable for applications working at very high temperatures, for instance, EGR coolers for trucks and automotive metal catalytic converters.

Composition

ISO 3677, B-Ni71CrSi-1080/1135
ISO 17672, Ni 650
ANSI/AWS A5.8, BNi-5
UNS N99650

Melting range

1080-1135°C

Min. brazing temperature

1150°C

BrazeLet BNi7

Nickel-based brazing alloy that provides high strength when brazing stainless steel material in vacuum or protective atmosphere.

BrazeLet® BNi7 is a Nickel-based brazing alloy that provides high strength when brazing stainless steel material in vacuum or protective atmosphere. Typical applications for this brazing alloy are heat exchangers not requiring high cossosion resitance, for instance automotive EGR coolers and domestic or industrial tap water applications.

BrazeLet BNi7 contains phosphorous as melting point depressants and can therefore be used at relatively low temperatures.

Composition

ISO 3677, B-Ni76CrP-890
ISO 17672, Ni 710
ANSI/AWS A5.8, BNi-7
UNS N99710

Melting temperature

890°C

Min. brazing temperature

980°C

BrazeLet BNi613

For all types of applications in high temperature and high corrosion environments.

BrazeLet®  BNi613 is a nickel-based brazing filler metal developed specifically for EGR coolers, a type of heat exchanger found in diesel engines. However, the unique composition delivers a cost-effective solution with an attractive combination of properties – excellent wetting properties, high strength and corrosion resistance at high temperatures – that can be suitable for many types of application operating in demanding environments.

Benefits

  • Cost efficient
  • Gap size flexibility
  • Corrosion resistant
  • High strength

Composition

ISO 3677, B-Ni60CrPSi-970/1030
Impurities according ISO 17672 and ANSI/AWS A5.8

Melting range

970-1030°C

Min. brazing temperature

1090°C

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