Harris

Harris 4043 Aluminum TIG Welding Rod – R4043

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  • Harris R4043 aluminum silicon welding rods with Harris product packaging for aluminum TIG and gas welding applications.
  • Harris R4043 aluminum welding rods product guide showing features, applications, AWS ER4043 specifications, available diameters, and packaging information.
$75.95 - $659.95

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Description

Harris 4043 Aluminum TIG Welding Rod

Harris 4043 aluminum TIG welding rod is an R4043 aluminum-silicon filler metal designed for GTAW / TIG welding of heat-treatable aluminum alloys, particularly 6XXX-series base materials.

Select the required diameter and package configuration from the product options above. Each available variation is tied to the corresponding Harris item number, package weight, selling price, and cost.

Product Highlights

  • R4043 aluminum TIG filler rod
  • Designed primarily for TIG / GTAW welding of heat-treatable aluminum alloys
  • Well suited for 6XXX-series aluminum base materials
  • Lower melting point and greater fluidity than many 5XXX-series filler alloys
  • Low sensitivity to weld cracking when used with compatible 6XXX-series alloys
  • Suitable for many aluminum casting repair applications
  • Commonly used for aluminum/silicon cast alloys such as A356
  • Alloy identification embossed on each rod for easy identification

Technical Specifications

Classification R4043
Filler Metal Type Aluminum-Silicon TIG Welding Rod
Welding Process GTAW / TIG Welding
Primary Base-Metal Family Heat-Treatable Aluminum Alloys, Especially 6XXX Series
Welding Positions All positions
Shielding Gas 100% Argon or Argon / Helium Mixtures
Recommended Gas Flow 30–50 CFH
Manufacturer The Harris Products Group

Performance Characteristics

Fluidity High fluidity compared with many 5XXX-series aluminum filler alloys
Melting Characteristics Lower melting point than many 5XXX-series filler alloys
Crack Resistance Low sensitivity to weld cracking with compatible 6XXX-series base alloys
Rod Identification Alloy identification is embossed on each rod for easy identification

Common Applications

Fabrication & Manufacturing

  • General aluminum fabrication
  • Pressure vessels
  • Automotive parts
  • Bicycle frames

Repair & Specialty Applications

  • Aluminum casting repair
  • Aluminum/silicon castings
  • A356-type casting repairs
  • General maintenance and repair

Product Resources

View manufacturer-published technical information, specifications, application guidance, and product data for Harris 4043 aluminum welding wire and rod.

View Technical Data Sheet

Need Help Selecting Harris 4043 Aluminum TIG Rod?

Our welding and industrial supply specialists can help you select the appropriate rod diameter and package configuration for your aluminum TIG welding application.

Frequently Asked Questions

What is Harris 4043 aluminum TIG welding rod?

Harris 4043 is an R4043 aluminum-silicon filler metal designed for GTAW / TIG welding. It is commonly used with heat-treatable aluminum alloys, especially 6XXX-series base materials.

What welding process is used with Harris 4043 TIG rod?

This product is designed for gas tungsten arc welding (GTAW), commonly referred to as TIG welding.

What aluminum alloys are commonly welded with R4043?

R4043 is commonly used with heat-treatable aluminum alloys, particularly 6XXX-series materials, along with many compatible aluminum casting alloys.

Why is 4043 commonly used for aluminum TIG welding?

4043 aluminum filler metal provides good fluidity, a relatively low melting point, and low sensitivity to weld cracking when used with compatible base materials.

Can Harris 4043 TIG rod be used for aluminum casting repair?

Yes. Harris identifies 4043 as commonly used for repair welding aluminum/silicon cast alloys, including casting grades such as A356.

How are Harris 4043 TIG rods identified?

Harris identifies the alloy on each rod by embossing the alloy designation directly on the rod for easier identification.

What shielding gas should be used with Harris 4043 TIG rod?

Harris identifies 100% Argon or Argon / Helium mixtures as suitable shielding gases, with a recommended flow rate of approximately 30–50 CFH.

Can Harris 4043 TIG rod be welded in all positions?

Yes. Harris identifies its 4043 TIG filler rod for all welding positions.

Should R4043 be used on 5XXX-series aluminum?

Harris advises against welding 5XXX-series base materials with 4043 and other 4XXX-series filler metals. Always confirm filler-metal compatibility with the base alloy and applicable welding procedure before use.

How do I choose the correct Harris 4043 TIG variation?

Select the diameter and package configuration required for your application. The selected variation determines the Harris item number, package weight, price, and cost.

Important Ordering Notes

  • Select the required diameter and package configuration before adding the product to your cart.
  • The selected variation determines the Harris item number, package weight, price, and cost.
  • Only available Harris diameter and package combinations are shown on this product page.
  • Available package configurations may vary by rod diameter.
  • Large 50 lb packages may require freight shipping depending on shipment weight, destination, and total order configuration.
  • Harris advises against welding 5XXX-series base materials with 4043 and other 4XXX-series filler metals.
  • Always verify filler-metal compatibility with the base alloy and applicable welding procedure before welding.
  • Always follow applicable welding procedures, manufacturer instructions, workplace safety requirements, and applicable codes.

California Proposition 65 Warning

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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