Fluxes And Pastes

Fluxes And Pastes

DESCRIPTION & APPLICATIONS : 

Fluxes And Pastes play a critical role in achieving clean, strong, and reliable brazed joints. These products support proper metal flow by removing oxides, improving wetting, and protecting the joint area during heating. STAVINOX fluxes and pastes are designed for silver, copper, and brass brazing applications across industries that demand consistent joint strength and dependable performance under varied brazing conditions.

Grades & specifications

Fluxes And Pastes — composition, operating temperature and international standards by grade
STAVINOX Ag Flux Filler Metals International standards Activity Range
EN 1045AWS-FB
STAVINOX SILVER BRAZING POWDER A BAg, BCupFH10-500-800
STAVINOX SILVER BRAZING POWDER B BAg-FB3F600-815
STAVINOX SILVER BRAZING PASTE C BAg, BCupFH10FB3A500-870
STAVINOX SILVER BRAZING PASTE D BAg, BCupFH10FB3A550-870
STAVINOX SILVER BRAZING PASTE E BAg, BCupFH 12FB3C600-925
STAVINOX SILVER BRAZING POWDER BAg, BCup--500-750
STAVINOX HI TEMP FLUX POWDER RBCuZn GradeFH 20-750-1000
STAVINOX HI TEMP FLUX PASTE RBCuZn GradeFH 21FB3D750-1200

Key Features and Benefits of Fluxes And Pastes

Stanvac International offers a comprehensive range of brazing & welding flux solutions, including stainless steel flux and aluminum brazing flux, developed to meet different material and process requirements. These products are suitable for manual, torch, induction, and specialised brazing operations.

  • Wide Formulation Range: Available in cadmium and cadmium-free grades, cadmium-free grades with tin, and high temperature in copper and brass brazing alloys, high temperature formulations to suit diverse brazing needs.
  • Effective Oxide Removal: Designed to clean metal surfaces during heating, ensuring proper bonding and improved joint integrity.
  • Superior Wetting Action: Enhances filler metal flow across joint surfaces, resulting in smooth and uniform brazed joints.
  • Paste And Powder Options: Available as brazing flux paste and powder formats, allowing flexibility based on application method and operator preference.
  • Supports Silver Brazing: Works efficiently as a flux for silver solder, helping achieve clean joints in precision and industrial brazing applications.
  • Induction Brazing Compatibility: Selected formulations are suitable for induction brazing processes that require controlled heating.
  • High Temperature Performance: High-temperature fluxes are ideal for brazing copper and brass alloys at elevated operating temperatures.
  • Cost-Effective Solutions: Offers economical options without compromising performance, including cadmium and cadmium-free variants.

These advantages make STAVINOX brazing paste and flux solutions reliable for both routine and critical brazing applications.

Specifications of Fluxes And Pastes

Here are the available STAVINOX flux and paste variants along with their operating characteristics.

Product Name Filler Metals EN 1045 AWS FB Activity Range °C
STAVINOX Silver Brazing Powder A BAg, BCup FH10 - 500 to 800
STAVINOX Silver Brazing Powder B BAg - FB3F 600 to 815
STAVINOX Silver Brazing Paste C BAg, BCup FH10 FB3A 500 to 870
STAVINOX Silver Brazing Paste D BAg, BCup FH10 FB3A 550 to 870
STAVINOX Silver Brazing Paste E BAg, BCup FH12 FB3C 600 to 925
STAVINOX Silver Brazing Powder BAg, BCup - - 500 to 750
STAVINOX Hi Temp Flux Powder RBCuZn Grade FH20 - 750 to 1000
STAVINOX Hi Temp Flux Paste RBCuZn Grade FH21 FB3D 750 to 1200

This range allows users to select the most suitable brazing & welding flux based on filler metal, temperature, and application method.

Properties of Brazing Flux Paste

STAVINOX fluxes and pastes are engineered to deliver consistent results across a wide range of brazing conditions.

Property Description
Oxide Removal Cleans metal surfaces effectively during heating
Wetting Performance Promotes smooth filler metal flow
Temperature Stability Performs reliably across specified activity ranges
Residue Control Leaves minimal residue for easier post-brazing cleaning
Application Flexibility Suitable for torch and induction brazing
Joint Integrity Supports strong and uniform brazed joints
Material Compatibility Works with silver, copper, and brass brazing alloys

These properties ensure dependable performance for applications that require flux for silver solder and for high-quality brazed joints.

Applications of Flux for Welding Stainless Steel

STAVINOX fluxes for welding stainless steel widely used in:

  • Silver brazing of stainless steel and copper alloys
  • Copper and brass brazing applications
  • Induction brazing operations
  • Brazing of carbide tools
  • Fabrication of mechanical and electrical components
  • Repair and maintenance of industrial equipment

Certain formulations may also be selected for brazing flux requirements where compatible brazing processes are used.

Related Products

To complete brazing and joining operations, the following Stanvac International products are commonly used alongside brazing paste and flux solutions:

  • Copper and brass brazing alloys
  • Copper phosphorus brazing alloys
  • High Ag brazing alloys, cadmium-free grades
  • High Ag cadmium-bearing grades
  • Tungsten carbide tools tipped grades

These related products help create a complete brazing system for industrial and fabrication applications.

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