A Special Electrode That Deposits A Copper Base Alloy High In Tin And Phosphorous
BRONZE-PHOS
CLASSIFICATION
AWS A5.6 ECuSn-C | JIS Z 3231 DCuSn–B
PRODUCT DESCRIPTION
A chemically basic flux coated electrode that deposits a classic tin bronze weld metal. An alloy often referred to as phospor-bronze. The flux is extruded onto a fully alloyed core wire with a blend of silicates that ensure both coating strength and flux resistance to moisture absorption.
WELDING FEATURES OF THE ELECTRODE
The electrode can be used both AC and DCEP. The arc action is soft with a gentle pulsating action that ensures minimum penetration. Resistance to porosity is excellent provided the back-step strike technique is used. The slag is dark and fairly viscous and weld seams are convex. Weld metal appearance is a dull yellow colour or bronzy
APPLICATIONS AND MATERIALS TO BE WELDED
Intended as a maintenance basis for the repair in situ of tin bronze casting, particularly surface discontinuities, a pre-heat of some 300 °C plus being advisable. The use of the electrode may also be extended to welding bronze to both ferritic and austenitic steels. The alloy itself may, in certain circumstances, be used to repair bronze bearing or to build up worn steel bearings.
WELDING AMPERAGE AC and DC
OTHER DATA
Electrodes that have become damp should be re-dried at 80oC for 30 minutes
