용접사업부 표면처리사업부 안산제2공장
 

















 

Copper-base Alloys
 


The Polybronze® 4000 Series
 


Polycupro® 4333 (DC-RP) - An exceptionally smooth-running, highly deoxidized copper alloy designed to join and overlay conventional grades of copper and its alloys. Primarily used to fabricate and repair deoxidized, and electrolytic copper. It may also be used to weld galvanized steel and copper to mild steel where high strength is not required. Polycupro® 4333 is also used to resist mild corrosion.

BHN 54
Specification: AWS-Ecu
Available forms: E , TIG , MIG

 


Polybronze® 4007 (DC-RP) - An iron-free aluminum bronze alloy for overlaying bearings and wear-resistant surfaces. Resists corrosion, especially from salt water, metal salts and many acids. Not recommended for joining.

BHN 125
Specification: AWS-ECuAl-A1
Available forms: TIG , MIG

 


Polybronze® 4010 (DC-RP) - The most versatile aluminum bronze welding alloy in this series. For welding and joining many ferrous and nonferrous metals and dissimilar combinations including the more weldable grades of cast iron, high- and low-carbon steels, copper, bronzes and copper/nickel alloys. Also for overlaying bearings and corrosion-resistant surfaces. Hardness values will increase somewhat when using the MIG process. Also available as an AC electrode.

BHN 119 (aluminum bronze); BHN 137 (steel)
Specification: AWS-ECuAl-A2
Available forms: E , TIG , MIG

 


Polybronze® 4150 - An aluminum bronze alloy used to weld Ampco® 18 alloy. Also for piston overlay and deposition of bearing surfaces requiring high strength and good ductility. Hardness values will increase somewhat when using the MIG process.

BHN 166 as-welded
Specification: AWS-ECuAl-A3
Available forms: TIG , MIG

 


Polybronze® 4160 (DC-RP) - Electrode used to join aluminum bronze, ferrous and non-ferrous metals and dissimilar combinations requiring a higher tensile strength than 4010. A low coefficient of friction makes it ideal for overlaying bearing surfaces under average wear and shock conditions. Also available as a composite electrode.

BHN 160 (steel); BHN 177 (aluminum bronze)
Specification: AWS-ECuAl-B
Available forms: E

 


Polybronze® 4200 (DC-RP) - An aluminum bronze alloy used primarily for overlay and hard-surfacing to take heavy loading. Recommended for the repair of Ampco® 20 alloy. Welds are strong and have good hardness coupled with ductility. Hardness values will increase somewhat when using the MIG process. Also available as a composite electrode.

BHN 200 (steel); BHN 212 (aluminum bronze)
Specification: AWS-ECuAl-C
Available forms: E , FC , TIG , MIG

 


Polybronze® 4250 (DC-RP) - Aluminum bronze alloy used for overlay and hard-facing. Recommended for repair of Ampco® 21 alloy. High yeild strength and hardness but lower tensile strength and ductility than 4200. Excellent for high-pressure bearing surfaces, especially when operating against hardened steel surfaces. Unusually high wear-resistance qualities. Hardness values will increase when using the TIG process. Also available as a composite electrode.

BHN 250 (steel); BHN 260 (aluminum bronze)
Specification: AWS-ECuAl-D
Available forms: E , TIG

 


Polybronze® 4300 (DC-RP) - Aluminum bronze alloy designed for hard-surfacing and cladding. Welds have the highest yeild strength and hardness in the Weld Mold® family of aluminum bronzes. Freedom from galling, scratching and metal pick-up make this product ideal for hard-facing iron-base dies used to form or draw stainless steels. Also used to repair and overlay Ampco® 22 and 25 alloys. Also available as a composite electrode.

BHN 300 (steel) BHN 316 (aluminum bronze)
Specification: AWS-ECuAl-E
Available forms: E , FC , TIG

 


Polybronze® 4040 (DC-RP) - A manganese/nickel/aluminum bronze for welding cast ship propellers, usually constructed of Ampcoloy® 495. Provides high resistance to corrosion, erosion, and cavitation. Also used for welding cast iron. Hardness values will be higher when using the MIG process.

BHN 185, BHN 217
Specification: AWS-ECulMnNiAI
Available forms: E , TIG , MIG

 


Polybronze® 4046 (DC-RP) - An aluminum/nickel/manganese bronze, for the joining, repair or surfacing of dissimilar metals or aluminum bronzes containing nickel. Also used for welding on Ampco® 483, 45 and D-4 alloys. Commonly used on ship propellers (NiBrAl), turbines, valves, thrust bearings, stirrer blades, guides and other applications. Also available as a composite electrode.

BHN 190
Specification: AWS-ECuNiAl
Available forms: E , TIG , MIG

 


Polybronze® 4320 (DC-RP) - A phosphor bronze alloy for dense, porosity-free copper and copper alloys such as phosphor bronze, tin bronze, brass and silicon bronzes. Also for iron-based metals and alloys such as cast iron and galvanized; for dissimilar metals like tin bronze and steel, brass and steel and cast iron and steel.
BHN 89
Specification: AWS-ERCuSn-C
Available forms: E , TIG , MIG

 


Polybronze® 4325 (DC-RP) - A silicon bronze alloy for welding galvanized iron, cast and malleable iron, copper-based alloys, steel and silicon bronze. Excellent for welding cast iron to steel and when welding dirty, oily or burned cast or malleable iron.

BHN 85
Specification: AWS-ERCuSi-A
Available forms: E , TIG , MIG

 


Polybronze® 4400-FC - An alloy providing the highest abrasion resistance and hardness of all the Weld Mold flux-cored aluminum bronze series. Recommended as a one-layer deposit or capping pass. Multiple layers have a tendency to be hot short and crack. Used where severe metal to metal wear and abrasion is encountered.

Rc 40-42
Specification: NA
Available forms: FC , TIG