ER4043

(Priced Individually, Sold as a 10lb. Pack)

High-quality Washington Alloy® brand Aluminum / Silicon cut-length TIG filler metal. 10lb. Pack.

Price per pound:

• .035" (0.89mm): $56.16/lb.
• 3/64" (1.19mm): $19.46/lb.
• 1/16" (1.6mm): $11.88/lb.
• 3/32" (2.4mm): $10.88/lb.
• 1/8" (3.2mm): $10.56/lb.
• 5/32" (4.0mm): $13.34/lb.

Approximate number of rods per 10lb. pack for each diameter:

• .035" (0.89mm): 500 - 540
• 3/64" (1.14mm): 360 - 400
• 1/16" (1.6mm): 260 - 300
• 3/32" (2.4mm): 120 - 160
• 1/8" (3.2mm):  80-100
• 5/32" (4.0mm): 25-30

ER4043 Aluminum / Silicon AWS A 5.10 CLASS ER4043

ER4043 (commonly referred to as ALSi-5) is a 5% Silicon Aluminum filler metal that is used primarily for welding Aluminum Alloys 3003, 3004, 5052, 6061, 6063 and Casting Alloys 43, 355, 356, and 214.

ER4043 has a melting range of 1,065°F - 1,170°F.

The post-anodizing color tint is gray.

Tensile strength average is 29,000 psi.

Learn More:

• Spec Sheet: PDF
• SDS: PDF