Page 22 - Bullion World Issue 02 Volume 06 February_2026

Bullion World | Volume 6 | Issue 02 | February 2026

supporting modern workplace safety and Key characteristics include:
environmental regulations without sacrificing • Narrow melting-range control to ensure
performance. predictable flow
• Argo-braze™ engineered silver alloys • Tight composition tolerances to minimize joint
Developed for mechanically demanding joints— variability
particularly tungsten-carbide-to-steel—Argo- • Process routes optimized for different product
braze™ alloys focus on stress accommodation, forms and application methods
impact resistance, and long-term durability in • Batch-to-batch repeatability across long production
tooling and wear-part applications. runs
• EASY-FLO™ / MATTIFLUX™ flux systems
Flux chemistry is treated as integral to joint Manufacturing is aligned with internationally
performance. JM’s fluxes are formulated to ensure recognized brazing standards, enabling qualification
consistent oxide removal and wetting across under ISO, EN, AWS, AMS, and customer-specific
copper alloys, steels, stainless steels, aluminum specifications commonly required in industrial supply
bronzes, and free-machining brasses. chains. This standards-based discipline is essential for
customers operating in regulated or high-responsibility
Together, these elements form a co-engineered silver environments.
brazing system, rather than a collection of standalone
materials. Product Forms and Integration Capability
A central differentiator in Johnson Matthey’s silver
Manufacturing Technologies brazing portfolio is the breadth of application-ready
and Process Control product forms, enabling customers to design the alloy
Johnson Matthey’s silver brazing alloys are produced directly into their manufacturing process.
using controlled melting and alloying practices
optimized for industrial consistency. The focus is not on Available formats include:
extreme vacuum metallurgy, but on tight metallurgical • Rods and wires for manual or automated feeding
discipline across high-repeatability production • Flux-coated rods to simplify operations
environments. • Foils, strip, and sheet for controlled alloy volume
placement
• Engineered preforms (rings, washers, custom
shapes)
• Brazing pastes and paints for automated and high-
repeatability lines

By controlling not only alloy chemistry but also how
the alloy is delivered to the joint, JM helps customers
reduce scrap, stabilise yields, and improve cycle-time
consistency—critical advantages in cost-sensitive,
high-volume production.

Application-Driven Joining Know-How
Johnson Matthey’s strength in silver brazing alloys
lies in applied joining science. Its technical guidance
addresses practical industrial challenges, including:
• Voiding and inconsistent wetting in leaded brasses
• Brittle joint risks in aluminium-bronze-to-steel
assemblies
• Stress management in carbide tooling
• Optimising alloy-flux combinations for mixed-metal
joints

22