High-temperature brazing is a critical metallurgical joining process used to create extraordinarily strong, leak-proof, and oxidation-resistant joints in complex, multi-component assemblies. It is the preferred method when welding is impossible or when joining dissimilar metals, delicate honeycomb structures, and thin-walled components.
Unlike welding, brazing does not melt the base materials. Instead, a finely powdered filler alloy—often formulated into a dispensable paste, tape, or preform—is applied to the joint interface. The entire assembly is then heated in a vacuum or controlled-atmosphere furnace. As the furnace reaches the specific melting temperature of the filler powder, the alloy liquefies and is drawn deep into the tight clearances between the components via capillary action. Upon cooling, it forms a robust, continuous metallurgical bond.
| Product | AWS A5. | Ni | Co | Cr | Si | B | Fe | C | Others | Key Characteristics and Application |
|---|---|---|---|---|---|---|---|---|---|---|
| NICKEL-BASED ALLOYS | ||||||||||
| Lattice™ 125 LC | BNi-1a | Bal | - | 14 | 4.5 | 3 | 4.5 | <0.06 | - | High stress / aero, low-carbon grade. Ideal for highly stressed jet engine components. Delivers well-diffused, high-strength heat-resistant joints. |
| Lattice™ 31 | BNi-14 | Bal | - | 22 | 6.5 | - | - | - | P - 4.5 | Heat exchangers. Contains 4.5% P. Superior burst strength and enhanced flow characteristics compared to standard high Cr alloys. |
| Lattice™ 130 | BNi-3 | Bal | - | - | 4.5 | 3.1 | - | <0.06 | - | General purpose. Excellent flow in deeply jointed or marginal atmospheres. General purpose filler metal. |
| Lattice™ 150 | BNi-9 | Bal | - | 15 | - | 3.5 | - | <0.06 | - | Low temp / High strength. Good strength even at lower brazing temperatures. Ideal for highly stressed components like jet engine parts. |
| Lattice™ 160 | - | Bal | - | 11 | 3.5 | 2.25 | 3.5 | 0.5 | - | Wide Gap Ductility. Designed for wide clearance joints where greater ductility, machinability, and heavier fillets are required. |
| Lattice™ 170 | BNi-10 | Bal | - | 12 | 3.5 | 2.5 | 3.5 | 0.5 | W - 16 | High-temp strength. Exceptional strength at elevated temperatures. Ideal for joining base metals containing cobalt, tungsten, or molybdenum. |
| COBALT-BASED ALLOYS | ||||||||||
| Lattice™ 210 | BCo-1 | 17 | BAL | 19 | 8 | 0.8 | - | 0.4 | W - 4 | Co-Alloy Brazing. Superior high-temperature strength with minimal base metal penetration. Exceptional for brazing cobalt-based alloys. |
