NICKELBRAZE filler metals

NICKELBRAZETM filler metals are used to join stainless steel, nickel and cobalt base alloys. They provide exceptional resistance to chemical corrosion and oxidation coupled with high strength at elevated temperatures. These alloys are widely used particularly within the aerospace, automotive and nuclear industries using vacuum or controlled atmosphere brazing methods. These products are available as pastes, powders or tapes. Several can be supplied in rapidly solidified foil form.


Nickel based brazing filler metals

Ni Cr Fe B Si C ISO 17672 Melting Range
Bal 14 4.5 3.1 4.5 0.7 Ni 600 980 - 1060oC

 

This general purpose nickel based brazing filler metal produces high strength, oxidation and corrosion resistant joints. It is used in highly stressed components and aero-engine applications.

AMS/AWS A5.8
4775/BNi-1

EN1044:1999
NI101

Ni Cr Fe B Si ISO 17672 Melting Range
Bal 14 4.5 3.1 4.5 Ni 610 980 - 1070oC

 

NICKELBRAZE HTN1A has restricted carbon content and is used for similar applications to HTN1 such as aero-engine and nuclear components.

AMS/AWS A5.8
4776/BNi-1a

EN1044:1999
NI1A1

Ni Cr Fe B Si ISO 17672 Melting Range
Bal 7 3.0 3.1 4.5 Ni 620 970 - 1000oC

 

This filler metal is the first choice for many applications except for very thin walled assemblies. Good alloy flow allows joint clearances of 0.025-0.1mm. Widely used for automotive EGR parts.

AMS/AWS A5.8
4777/BNi-2

EN1044:1999
NI102

Ni Fe B Si ISO 17672 Melting Range
Bal 0.5 3.1 4.5 Ni 630 980 - 1040oC

 

NICKELBRAZE HTN3 is again similar to HTN1 but finds applications in marginal brazing atmospheres offering good flow where tight joint tolerances are encountered.

AMS/AWS A5.8
4778/BNi-3

EN1044:1999
NI103

Ni Fe B Si ISO 17672 Melting Range
Bal 1.5 1.8 3.5 Ni 631 980 - 1070oC

 

This alloy composition produces a wide melting range which can produce large, ductile fillets. It is suitable for brazing components where tight joint tolerances are not possible.

AMS/AWS A5.8
4779/BNi-4

EN1044:1999
NI104

Ni Cr Si ISO 17672 Melting Range
Bal 19 10.1 Ni 650 1080 - 1135oC

 

This product is used for high strength, oxidation resistant joints that can operate at elevated temperatures. It is used in aerospace, automotive catalyst and heat exchanger applications.

AMS/AWS A5.8
4782/BNi-5

EN1044:1999
NI105

Ni P ISO 17672 Melting Range
Bal 11 Ni 700 875oC

 

NICKELBRAZE HTN6 is a free flowing alloy that can be used on iron and nickel alloys and low chromium steels in exothermic atmospheres. Contact joint gaps are required.

AMS/AWS A5.8
BNi-6

EN1044:1999
NI106

Ni Cr P ISO 17672 Melting Range
Bal 14 10.1 Ni 710 890oC

 

This filler metal is used on thin walled structures and on high temperature components. It shows low erosion on iron and nickel alloys. Contact joint gaps are required.

AMS/AWS A5.8
BNi-7

EN1044:1999
NI107

Ni Cr Si P Melting Range
Bal 29 4 6 890oC

 

This filler metal is widely used for automotive EGR components. It wets well on stainless steel, has good joint strength and offers good resistance to chemical attack.

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Dalton O’Brien

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    Mario Porta

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      Michela Grout

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