Specification Brand : Lincoln Electric BulletPoint1 : Country Of Origin: United States BulletPoint2 : Model Number: KH515 BulletPoint3 : Item Package Dimension: 14.9999999847" L x 0.99999999898" W x 0.99999999898" H BulletPoint4 : Item Package Weight: 0.85 lb BulletPoint5 : Perfect for soldering and brazing. Usually used to welding copper tube of air conditioner,refrigerator and freezer. Color : brown ExternallyAssignedProductIdentifier1 : 725636412248 ExternallyAssignedProductIdentifier2 : 0725636412248 ExternallyAssignedProductIdentifier3 : 00725636412248 ItemDisplayWeight : 2 pounds ItemForm : Rod ItemName : Lincoln Electric KH515 Brazing Rods, 1/8" x 12", 1 lb. Tube, Brown ItemPackageDimensions_Height : 38.1 centimeters ItemPackageDimensions_Length : 2.54 centimeters ItemPackageDimensions_Width : 2.54 centimeters ItemPackageQuantity : 1 ItemShape : Rectangular ItemTypeKeyword : brazing-rods Manufacturer : Lincoln Electric Material : copper ModelNumber : KH515 NumberOfBoxes : 1 NumberOfItems : 1 PackageLevel : unit PartNumber : KH515 ProductDescription : L201 is a copper-phosphorus binary brazing filler metal close to the eutectic composition. It has a low melting point, good fluidity, and can flow into brazing seams with small gaps. It is generally used in the electromechanical and instrument industries to braze copper and brass parts that are not subject to impact loads.
Phosphor copper welding rod is suitable for welding copper and copper pipe joints of refrigeration systems of air conditioners, freezer and refrigerators.
Phosphorus copper welding rod do not use flux when welding red copper pipes. Phosphorus is a reducing agent that can reduce cuprous oxide and generate phosphorus oxides floating on the surface of the weld. Phosphorus copper welding rod have good fluidity and self-brazing effect. All other silver-copper rod use flux.
If the heating process is slow during brazing, the copper-phosphorus solder has a tendency to segregate, so the heating speed during brazing should be as fast as possible. The color after welding is bright gray, and the color of copper will be restored by immersing in 10% sulfuric acid.