High Silicon Bronze “A” Sheet/Plate

silicon bronze

655 High Silicon Bronze

High Silicon Bronze “A” (UNS C655) Sheet and Plate is now available! Bronze c655 is highly corrosion resistant with strength comparable to mild steel. It boasts a combination of properties and characteristics that make it highly versatile and popular among many industries. The distinctive colors of copper alloys which include brass and bronze, make an attractive palette for architecture, consumer applications and art. Also, C655 is registered with the U.S. Environmental Protection Agency as an Antimicrobial Copper Alloy.

 

silicon bronze

Silicon Bronze

Bronzes are commonly named by their principal alloying addition, which imparts specific useful properties. Silicon Bronze’s properties and characteristics make it an ideal material for architectural, consumer, industrial and marine applications.

CORROSION RESISTANCE OF C655 HIGH SILICON BRONZE

Silicon bronzes demonstrate excellent resistance to a wide range of corrosives, including fresh and salt water, most acids, alkalies, salts, and organic chemicals. However, it is not suitable for use with sulfides, nitric acid, acid chromates, or oxidizing salts such as ferric chloride.

COLOR OF C655 HIGH SILICON BRONZE

C655 silicon bronze has a reddish old gold color in its natural state. When weathered, it turns a russet brown, and ultimately to a gray-green patina. Silicon bronzes have a slightly pink to reddish hue in the natural state that prevents exact color matching with other members of the bronze family. However, silicon bronzes take chemical finishes well, making them desirable choices when color matching is important. Silicon bronzes (C65100 and C65500 as wrought products and C87300 as castings) are easily welded using C65600 (AWS A5.7 ERCuSi-A), a filler metal with an excellent color match.

silicon bronze

FABRICATION OF C655 HIGH SILICON BRONZE

C655 Silicon Bronze can be joined using multiple techniques. Its combination of corrosion resistance, strength, resilience, and formability make it among the most widely used copper alloys. It is excellent for hot and cold working. And it is relatively easy to machine. Common fabrication processes include blanking, drawing, forming and bending, heading and upsetting, hot forging and pressing, roll threading and knurling, shearing, squeezing and swaging.

TechniqueSuitability
SolderingGood
BrazingExcellent
Oxyacetylene WeldingGood
Gas Shielded Arc WeldingExcellent
Coated Metal Arc WeldingFair
Spot WeldExcellent
Seam WeldExcellent
Butt WeldExcellent
Capacity for Being Cold WorkedExcellent
Capacity for Being Hot FormedExcellent
Forgeability Rating40
Machinability Rating30