ERCuSi-A - Silicon Bronze, 1lb. Pack

ERCuSi-A - Silicon Bronze, 1lb. Pack

Starting at:  $16.80

Share: Share on Facebook Share on Twitter Pin It to Pinterest


High-Performance Copper Alloy TIG Welding Rod.

AWS A5.27 Grade
Class ERCuSi-A
Available Diameters .045", 1/16", 3/32" & 1/8"
Length 36" (914mm)
Weight 1 lb. Pack

Approximate number of rods per 1 lb. pack for each diameter:

  • .045" (1.14mm): 36 - 40
  • 1/16" (1.6mm): 26 - 30
  • 3/32" (2.4mm): 12 - 16
  • 1/8" (3.2mm): 8 - 10


ERCuSi-A Silicon Bronze is primarily used for TIG, Plasma and Oxy-Acetylene welding or brazing on Steel and Copper Alloys.

A chemical analysis of Copper and Zinc as well as alloying elements of 3% Silicon and small amounts of Tin and Manganese produce welds with excellent mechanical properties.

High strength, ductile and sound welds are easily attained by using a neutral or slightly oxidizing flame (especially on Copper Alloys).

Keep the weld pool small to promote fast solidification and minimize cracking.

A high Boric acid brazing flux is required for Oxy-Acetylene brazing.

Silicon Bronze is ideal for plain and zinc coated thin Steel sheet metal.

Proper procedures will produce tensile strengths of 50,000 psi.

Back To Top

Frequently Bought Together

Back to Top

Customers Also Purchased

Customer Reviews

  • 5 star 9
  • 4 star 0
  • 3 star 0
  • 2 star 0
  • 1 star 0

Average Customer Rating for:

ERCuSi-A - Silicon Bronze, 1lb. Pack

5 of 5 Stars! (9)

5 out of 5 stars

See All 9 Customer Reviews

Added:  by

5 of 5 Stars!
Hello - I have not purchased any SiBr from Arc-zone before, but I have used it since 1976 and it is a very low temp rod that can save engine blocks and other items, wonderful rod ! Ralph N.J.

Added:  by

5 of 5 Stars!
These silicone bronze rods are clean and provide great weldibility with various types of brass.

Added:  by

5 of 5 Stars!
Rod works very well. Recommend highly. Would definitely buy again from Arc-Zone.

The Metal Mashup - Powered by Arc-Zone

A Newsletter just for Welders: Sparks, Arcs, Videos, News, Specials, Tips & Fabricator Profiles.