Harris Products Group, A404350, Welding Alloy, Aluminum, 4043; for 6XXX Alloys, Low Crack Sensitivity

Harris® 4043 Aluminum Silicon alloy is very commonly used to weld on 6XXX base materials and other heat treatable alloys. Harris® 4043 is a soft alloy, with good crack resistance and high penetration compared to other filler metals. It can be used for certain brazing applications and to weld on high silicon casts like A356. Welding of 5XXX base materials with 4043 and other 4XXX filler metals should be avoided.

Features

• Marked with model number on each end for easy identification after use
• Gray color (post anodized)
• All-position welding
• Common choice for welding 6061
• Lower melting point and more fluidity than the 5XXX series filler alloys
• Often used for repair welding aluminum/silicon cast alloys such as grades 353/A356
• Designed for welding heat treatable base alloys, specifically 6XXX series alloys
• Low sensitivity to weld cracking with the 6XXX series base alloys

• Weight: 1.04 lbs
• Material: Aluminum Silicon Alloy
• Alloy Type: 4043
• Base Metals Suitable: 6XXX series, Aluminum/Silicon Cast Alloys (e.g., 353/A356)
• Welding Processes: TIG (GTAW), MIG (GMAW)
• Tensile Strength: 27,000 psi
• Yield Strength: 18,000 psi
• Solidus Temperature: 1065 F (574 C)
• Liquidus Temperature: 1170 F (632 C)
• Density: 0.097 lbs/cu in
• Silicon Content: 4.5-6.0 %
• Titanium Content: 0.20 % max
• Magnesium Content: 0.05 % max
• Copper Content: 0.30 % max
• Manganese Content: 0.05 % max
• Beryllium Content: 0.0003 % max
• Zinc Content: 0.10 % max
• Iron Content: 0.80 % max
• Compliance: ANSI/AWS A5.10 Class R/ER 4043, ASME SFA 5.10, AMS 4190 (Chemistry Only)
• Color (Post Anodize): Gray
• Welding Position: All-position

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