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Harris® 15 low fuming bronze (LFB) flux-coated is considered a "braze-welding" alloy as this copper/zinc alloy exhibits minimal capillary action during brazing. This limits joint design primarily to lap, tee, and butt joints. Butt joints require some edge preparation typically incorporating beveled edges to provide a location for filler metal to be applied and to ensure alloy penetration to the joint root. LFB was developed primarily to braze steel and some cast iron grades including malleable and gray iron. It can be used to join copper but due to its elevated melting temperature care must be taken during brazing to avoid overheating or melting the copper. It is used with the oxy-fuel process. This alloy is flux-coated, eliminating the need for manual flux application.
Harris® Low-Fuming Flux-Coated Brazing Alloy, 15 Series, 4 lb Net Content, Box Container, 1/8 in Diameter, 36 in Length, Composition: Tin, Copper, Iron, Manganese, Silicon, Zinc, Lead, Aluminum, Finish: Bronze, For Joining Material: Steel, Cast Iron, Malleable and Gray Iron, Copper, Additional Information: Copper Zinc Material
Additional Information | : | Copper Zinc Material |
Alloy Type | : | CopperBased |
Brazing Temperature Range | : | 1670 deg F-1750 deg F (910 deg C-954 deg C) |
Chemical Composition | : | Tin 0.80-1.10%;Copper 56-60%;Iron 0.25-1.20%;Manganese 0.01-0.50%;Silicon 0.04-0.15%;Zinc Remainder% |
Color | : | Yellow brass |
Composition | : | Tin, Copper, Iron, Manganese, Silicon, Zinc, Lead, Aluminum |
Container Size | : | 1 lb |
Container Type | : | Box |
Diameter | : | 1/8 in |
Finish | : | Bronze |
For Joining Material | : | Steel, Cast Iron, Malleable and Gray Iron, Copper |
Length | : | 36 in |
Liquidus | : | 1630 deg F (888 deg C) |
ModelName | : | HARRIS® 15 LFB-FC White POP |
Net Content | : | 4 lb |
Recommended Flux | : | No flux required |
Series | : | 15 Series |
Shape | : | Rod |
Size | : | 1 lb. pkg. |
Solidus | : | 1590 deg F (866 deg C) |
Temperature Rating | : | 1670 to 1750 deg F |