What are the dimension of the spool? My spool gun takes a 4" spool.

The spools are 4". Generally any 1 LB spool comes on a 4" spool and fits most standard spool guns.

I welding an Aluminum pier and don't know the grade. What mig wire grade would you recommend?

You can use this one. It is precisely the one that welders use when they don´t know the aluminum grade they are welding.

Can I use this without gas ?I have a $100.00 mig welder from Harbor freight tools and would like to use this wire with it.

Hello. No, unfortunately, you need Argon to weld with this wire.

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SÜA - ER4043 - MIG Aluminum Welding Wire - 1 Lb x 0.035'' (4 SPOOLS)

SÜA - ER4043 - MIG Aluminum Welding Wire - 1 Lb x 0.035'' (4 SPOOLS)

Product ID: 27076894

Details

Brand
SÜA
Color
gray
Finish Type
Unfinished
Item Weight
4 pounds
Material
Aluminum

✨Bright, shiny weld finish every time

🔥5% Silicon boosts weld fluidity

⚙️0.035'' diameter for precision control

R4898

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Elevate your welds with the classic power of ER4043 – where precision meets brilliance!

PRECISION DIAMETER - 0.035'' wire thickness ensures smooth, controlled welding for professional results
SLEEK SHINY FINISH - Leaves a bright, anodized gray weld deposit that stands out on every project
CONSISTENT QUALITY SPOOLS - Each 1 lb spool delivers reliable feed and consistent weld puddle fluidity
SILICON ENHANCED PERFORMANCE - 5% silicon content lowers melting point and reduces cracking for flawless welds
VERSATILE ALLOY COMPATIBILITY - Perfect for welding popular aluminum grades like 6061, 6063, and cast alloys

SÜA ER4043 MIG Aluminum Welding Wire features a 5% silicon alloy that lowers melting point and enhances weld fluidity, minimizing cracking. With a precise 0.035'' diameter, it’s ideal for welding a wide range of aluminum grades including 6061 and 6063. Available in convenient 1 lb spools (4-pack), it delivers consistent, bright, and durable welds perfect for professional and general-purpose applications.

Specifications

ASIN	B01DTLYQ7E
Best Sellers Rank	#29,178 in Automotive ( See Top 100 in Automotive ) #31 in Welding Wire
Brand Name	SÜA
Color	gray
Customer Reviews	4.6 4.6 out of 5 stars (355)
Finish Type	Unfinished
Global Trade Identification Number	00840338508683
Item Diameter	0.04 inches
Item Form	Solid
Item Shape	Cylinder
Item Thickness	0.04 inches
Item Weight	4 pounds
Manufacturer	TGB
Material	Aluminum
Model Number	4043W4x35
Number of Items	4
Number of Packs	4
Part Number	4043W4x35
UPC	840338508683 685867900801
Wire Diameter	0.04 inches

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