Ams4777

AMS 4777 is a high-performance nickel-based brazing filler metal (classified as BNi-2) that serves as a cornerstone material for high-temperature and high-stress applications in aerospace, energy, and automotive industries PrinceizantWeldtool. In the current 2025–2026 market, it is trending toward sustainable production through water-based pastes and automation for high-efficiency heat exchangers HoganasAimtek.

Product Overview & Technical Profile

AMS 4777 is primarily utilized for joining stainless steels, nickel, and cobalt-based superalloys. It is valued for its relatively low joining temperature compared to other nickel alloys, combined with excellent oxidation and corrosion resistance AlexymetalsPrinceizant.

* Chemical Composition: Nickel (82%), Chromium (7%), Silicon (4.5%), Boron (3.1%), and Iron (3%) WeldtoolAlexymetals.

* Melting Range: Solidus of 1780°F (971°C) and Liquidus of 1830°F (1000°C) PrinceizantAlexymetals.

* Available Forms: Typically supplied as powder, paste, foil, and preforms to suit different manufacturing workflows SaePrinceizant.

Market Trends & Industry Insights (2025–2026)

The market for AMS 4777 is undergoing a shift driven by technical optimization and environmental regulations:

* Clean Manufacturing: There is a surge in demand for water-based brazing pastes that minimize furnace maintenance and decompose cleanly, supporting green manufacturing targets Aimtek.

* Precision Automation: The rise of amorphous brazing foils and transfer tapes is enabling zero-voiding joints in high-speed automated production for flat heat exchangers and jet engine components HoganasAimtek.

* Renewable Energy Expansion: Beyond traditional aerospace, AMS 4777 is increasingly used in Solid Oxide Fuel Cells (SOFC) and high-efficiency renewable energy heat exchangers due to its stability at extreme temperatures Aimtek.

Commercial & Sourcing Data

Pricing for AMS 4777 is highly dependent on the form (foil vs. powder) and volume. Leading suppliers include Prince & Izant, Alexy Metals, and Anhui Huazhong Welding PrinceizantAlexymetalsAlibaba.

* Retail Pricing: Alexy Metals lists foil at approximately $211.50 per unit, while B2B bulk powder is quoted around $30/kg with a 10kg MOQ AlexymetalsAlibaba.

* B2B Sourcing: The attached files provide a comprehensive list of global manufacturers and specialized suppliers offering various BNi-2 formats.