Aluminum & Copper Alloys
ER1070
ER1070 (Al99.7) is ultra-high purity aluminum filler wire specially for welding 1xxx high-purity aluminum materials.
产品名称 ER1070
ALUMINUM WELDING WIRE
ER1070 (Al99.7) is ultra-high purity aluminum filler wire specially for welding 1xxx high-purity aluminum materials.
Key Features: Extremely low impurity content, top electrical conductivity and excellent chemical corrosion resistance. Caution: Low mechanical strength, not applicable for load-bearing structural components; not suitable for welding 5xxx/6xxx series aluminum alloys.
Applicable Standards
AWS A5.10 ER1070（MIG）/ R1070（TIG）
EN ISO 18273：S Al 1070（Al99.7）
Standard Diameter & Packaging
• MIG wires: 0.8/0.9/1.0/1.2/1.6 mm, Standard spools: 0.45kg, 0.5kg, 1kg, 2kg,6 kg, 7 kg
-TIG rods: 2.0/2.4/3.2/4.0/5.0 mm, 1m fixed length, packed in5kg plastic tube and 5kg cardboard box.
Welding Polarity
• MIG (GMAW)：DCEP
• TIG (GTAW)：AC
Shielding Gas (MIG + TIG)
• Preferred shielding gas: 100% pure Ar. Ar+He mixture is available for thick plates requiring deep penetration.
• Flow rate: MIG 18–25 L/min, TIG 12–18 L/min.
Mechanical Properties of Deposited Metal
• Tensile Strength: 65–90 MPa
• Yield Strength: 20–35 MPa
• Elongation (A5): 32%–42%
• Melting Range: 646–660℃
Key Advantages
• Ultra-high purity matching wire for 1070, 1060, 1050 pure aluminum sheets and foils,
-Superior electrical conductivity, perfect for conductive busbars and electronic conductive parts,
-Excellent resistance to acid & alkali corrosion, widely used in chemical anti-corrosion equipment,
• Uniform bright silver-white surface after anodizing, tiny color difference,
• Stable arc, almost no spatter, ultra-smooth weld bead,
• Compatible with MIG and TIG, excellent for ultra-thin pure aluminum sheet welding.
Recommended Base Metals
✅ Recommended: 1070, 1060, 1050, 1100 high-purity aluminum alloys
✅ Dissimilar welding: Various combinations of 1xxx pure aluminum materials
⚠️ Caution: Low tensile strength, forbidden for stressed load-bearing structures
❌ Do not weld 5xxx Mg-containing or 6xxx heat-treatable aluminum alloys, resulting in severe strength loss and unstable corrosion resistance
Applications
• High-conductivity aluminum busbars, electrical power cabinet conductive components
• Chemical anti-corrosion reactors, pure aluminum lining storage tanks
• Lithium battery aluminum foil shells, electronic heat dissipation parts
• Food-grade pure aluminum containers and clean equipment housings
• Light ventilation ducts, thin aluminum decorative panels
Common Welding Problem & Solutions
