Brazing & Soldering Products

Lucas-Milhaupt offers the most comprehensive inventory of alloys and forms in the industry and our expertise in brazing and soldering ensures that we can find the best-matched products for your needs.

Technical Documentation

Visit our knowledge base for SDS and other technical documentation.

Download Technical Documents

Nickel Filler Metals

Joining Heat Resistant Nickel-Based Alloys and Stainless Steel

Of the various braze filler metals available in the market today, nickel based filler metals are primarily used with heat-and-corrosion resistant alloys, most commonly the AISI 300 and 400 series stainless steels and nickel and cobalt base alloys. Provided the right nickel brazing filler metal is selected, the braze joints may retain their properties up to 1800 °F (980 °C) and well above the brazing process temperatures. This is a possibility with the nickel based brazing filler metals because of the diffusion of melting point depressants into the base metals during the brazing process. 

Nickel-based materials are best used for the joining of stainless steel and Ni (nickel) based heat resistant alloys. Nickel-based brazing alloys are suited for brazing and heat treating combination operations. Our premium nickel filler metals are created with superior quality materials to create strongest joints possible.

When you purchase Lucas-Milhaupt nickel filler metals, not only do you get the most premium product on the market, you get 75 years' worth of Lucas Milhaupt technical expertise at your fingertips and access to our regional team managers to work with you and your team.

For more detailed information on brazing with nickel based brazing filler metals, read our series of technical bulletins on issues related to the field of brazing in our knowledgebase, or click here to view the PDF to help to provide you with additional insight.

Request a Quote


* Login required for document download.

Product SolidusLiquidusNominal Composition, %AWS & International Standards Technical Documents* SDS Safety Documents
°F °C °F °C B Cr Fe Ni Si Other

Recommended for parts subjected to light stresses at elevated temperatures. Good corrosion and flow characterics.

1790 977 1900 1038 3.1 14 4.5 73.65 4 0.75 C
BNi-1, AMS 4775

Similar to HANDY HI-TEMP® 720 but of particular interest where higher carbon content is not permissible. Slower slow than HANDY HI-TEMP® 720.

1790 977 1970 1077 3.1 14 4.5 73.84 4.5 0.06 C

Widely used low melting filler metal for furnace brazing aircraft parts, medical devices and other food handling components. Good flow generous fillets, low base metal penetration are characteristics of this filler metal.

1780 971 1830 999 3.1 7 3 82.34 4.5 0.06 C
BNi-2, AMS 4777

Flows freely and less sensitive to atmosphere dryness than the other filler metals. Better for tight/longer joints.

1800 982 1900 1038 3.1   1.5 90.84 4.5 0.06 C
BNi-3, AMS 4778

For stainless steels, Ni & Co base alloys with thin sections--jet engine parts and chemical equpment. More sluggish and is better for wide gap applictions.

1800 982 1950 1066 1.85   1.5 93.09 3.5 0.06 C
BNi-4, AMS 4779

For stainless steels, Ni, & Co base alloys with thin sections--jet engine parts and chemical equpment. For uses that demand high temp properties and good corrosion resistance at low processing temperatures.

1610 877 1610 877       88.94   11 P
0.06 max C

Often used for brazing honeycomb structures, thin-walled tube assemblies, and for nuclear applications where boron can't be used. The addition of chromium gives it better high temperature and corrosion properties than HANDY HI-TEMP® 932.

1630 888 1630 888   14   75.84   10.1 P
0.06 max C