Silver Brazing Rod, Sheet & Flux — BrazeTec (Germany)
Description
Silver Brazing Rod, Sheet & Flux — BrazeTec (Germany)
BrazeTec silver brazing alloy from Germany is a filler metal of silver (Ag), copper (Cu), and zinc (Zn) compliant with ISO 17672. It suits brazing of copper, carbide, and stainless steel, and any joint needing a fine, clean result. Available as rod, silver sheet, and matching flux, sold in retail quantities. Distributed by BOWMAP Industry & Tooling, Samut Prakan.
Specifications
| Brand | BrazeTec / Umicore (Germany) · Gasflux (USA) |
|---|---|
| Composition | Silver (Ag) · Copper (Cu) · Zinc (Zn) |
| Standard | ISO 17672 |
| Rod melting range | 630–760 °C |
| Rod working temp | 670–750 °C |
| Silver sheet 49/Cu | Thickness 0.2 / 0.3 / 0.4 mm · width 70 mm |
| Sheet melting range | 670–690 °C |
| Silver grades | 25% · 30% · 49% Ag (higher % for finer work) |
| Flux | BrazeTec 'special h' paste flux · Gasflux Type U paste flux (USA) — confirmed from product images |
| Rod packaging | BrazeTec Hartlot brazing alloy in 1 kg packs (from image) |
| Standard rod size | Typically stocked Ø1.5 mm × 500 mm (subject to current stock) |
Use cases
- Brazing copper tube and fittings in refrigeration and air-conditioning
- Brazing carbide tips onto tool bodies
- Joining stainless steel and work needing a fine, clean braze
- Repair and manufacturing where the joint must conduct heat/electricity well
- Using cut-to-size silver sheet for wide-area brazing joints
Compatibility
Choose the silver percentage (Ag%) to match the precision and strength required — a higher percentage (49%) flows and wets finely. Pair with a flux suited to the base metal, and heat with a torch up to working temperature. Heat the workpiece rather than melting the rod directly.
Availability
In stock at the BOWMAP warehouse in Samut Prakan, ready for same-day pickup or next-day delivery across Bangkok and the surrounding provinces. Contact us for bulk pricing on large orders.
Related products
- YAWATA Welding Electrodes FT-51 / L-55 — Mild-Steel Stick Rods (TIS)
- Additional brazing flux
- Gas torch & accessories
- CHUOKU carbide tips
FAQ
What is the difference between high- and low-silver brazing alloys?
The higher the silver percentage (Ag%), the lower the melting point and the better the flow, giving a finer, cleaner, and tougher joint — ideal for high-quality work such as the 49% grade. Lower-silver alloys are more economical and suit general work where fine detail matters less. Choose by job requirement and budget.
Why is flux needed for silver brazing?
Flux removes oxides from the metal surface, prevents new oxides from forming while heating, and helps the silver alloy flow into the joint, giving a strong, clean bond. Without the right flux the filler will not wet the surface and the joint will be weak.
What standard does BrazeTec meet, and can it braze stainless steel?
BrazeTec silver alloy complies with ISO 17672 and brazes stainless steel well, along with copper, carbide, and many alloys. Select a grade and flux suited to stainless and keep the temperature in the 670–750 °C working range for a strong joint.
