Deoxidized Copper
Deoxidized Copper

ER Cu filler metal is deoxidized copper with small quantities of phosphorus, silicon, tin, manganese and silver. The phosphorus and silicon are primarily deoxidizers, and silicon and other elements improve fluidity and ease of welding. This metal is normally used to weld deoxidized copper (C12000 and C12200) and electrolytic tough pitch copper (C11000). Preheating is desirable for most work, but it is essential for heavier gauge welding. Preheating temperatures of 400°F to 1OOO°F (205°C to 540°C) are suitable.

  • Alloy Chemical Composition(%) Solidus Liquidus AWS A5.7 ISO17672 BS EN 14640 DIN 1733
    CuSn1 Cu:Balance Sn:1.0 Mn:0.5 Si:0.5 P:0.15 Other:≤0.5 1020℃ 1050℃ ERCu Cu 511 CuSn1 SG-CuSn

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