Harris Products Group, 0404357, Aluminum Welding Alloy, 4043, Designed for 6XXX Series, All-Position, Low Weld Cracking

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

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

• Recommended Amperage Range (GMAW): 70-300 A
• Recommended Voltage Range (GMAW): 15-29 V
• Recommended Argon Flow Rate (GMAW): 25-50 cfh
• Weight: 1.12 lbs
• Tensile Strength (As Welded on 6061 Base Plate): 27,000 psi
• Yield Strength (As Welded on 6061 Base Plate): 18,000 psi
• Solidus Temperature: 1065 F (574 C)
• Liquidus Temperature: 1170 F (632 C)
• Density: 0.097 lbs/cu in
• Material Composition: Aluminum, Silicon 4.5-6.0%, Titanium 0.20% max, Magnesium 0.05% max, Copper 0.30% max, Manganese 0.05% max, Beryllium 0.0003% max, Zinc 0.10% max, Iron 0.80% max
• Post Anodize Color: Gray
• Specification Compliance: ANSI/AWS A5.10 Class R/ER 4043, ASME SFA 5.10, AMS 4190 (Chemistry)

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