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

Carbide Brazing Alloys

Lucas-Milhaupt offers several products for brazing carbide and diamond cutting tools. These materials typically include nickel or manganese (or both) to facilitate wetting of the carbide and increase bond strength. Many of these alloys are also available in a Tri-metal form.

The TRIMET® Alloy Advantage

These TRIMET® alloys consist of two layers of brazing filler metal clad onto a core of copper. This eases the stresses that arise due to the differences in thermal expansion between the carbide and base metal and is particularly important when joining carbides larger than one half inch.

Is TRIMET® Carbide Brazing Right for You?

The selection of TRIMET® material for carbide applications is dependent upon base metals, service conditions, heating method, and size of the assembly. Brazing of small carbides (less than 0.5 in.2 in surface area) may not require the use of a TRIMET®, but its use on larger pieces with a surface area greater than 0.5 in.2 have proven very beneficial in preventing cracking and warpage of the carbide.

* Login required for document download.

Product SolidusLiquidusNominal Composition, %AWS & International Standards Technical Documents* SDS Safety Documents
°F °C °F °C Ag Cu Mn Ni Zn Other
EASY-FLO® 3
(Formally SILVALOY® 50N) Lowest melting filler metal for joining carbides and steels.
1170 632 1270 687 50 15.5   3 15.5 16 Cd
 
BAg-3
HANDY HI-TEMP® 080
Economical, high strength filler metal for joining carbides to alloy steels.
1575 856 1675 912   54.85 12 8 25 0.15 Si
 
 
HANDY HI-TEMP® 095
High strength filler metal for joining carbides, steels and heat resistant alloys.
1615 879 1700 926   52.5 38 9.5      
HANDY HI-TEMP® 548
Moderate strength, low melting copper based alloy for carbides, tool steels, etc.
1615 879 1685 917   55 4 6 35    
SILVALOY® 252
(Formally BRAZE™ 252) Economical filler metal for carbide, stainless steel and steel.
1305 707 1475 801 25 38 2 2 33   BAg-26
SILVALOY® 299
(Formally BRAZE™ 299) Intermediate temperature braze alloy for use on ferrous & non ferrous alloys. Can be used to join carbide tools.
1250 676 1450 788 30 36   2 32    
SILVALOY® 403
(Formally BRAZE™ 403 / SILVALOY® A40N2) For carbides, steels and stainless steel; slow flow.
1240 670 1435 779 40 30   2 28   BAg-4
SILVALOY® 495
(Formally BRAZE™ 495 / SILVALOY® A49NM) For low-temperature brazing of tungsten carbide and stainless steel.
1260 682 1290 698 49 16 7.5 4.5 23   BAg-22
SILVALOY® 505

(Formally BRAZE™ 505 / SILVALOY® A50N) Cd-free replacement for EF 3. Free flowing alloys used to braze ferrous & non ferrous alloys. Joins carbides and stainless steel. Fluid flow.


1220 659 1305 707 50 20   2 28   BAg-24
TRIMET® 245
(Formally PLYMETAL A49NM) SILVALOY® 495 on both sides of copper in 1-2-1 ratio.
1260 680 1290 700              
TRIMET® 258
(Formally PLYMETAL 5031) EASY-FLO® 3 on both sides of copper in 1-2-1 ratio.
1170 632 1270 687              
TRIMET® 259
(Formally PLYMETAL A50N) SILVALOY® 505 on both sides of copper. Cd-free with higher strength and better flow qualities than TRIMET® 258.
1220 659 1305 707