Harris
Harris 4047 Aluminum TIG Welding Rod
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- Usually in Stock – Ships Quickly
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Description
Harris 4047 Aluminum TIG Welding Rod
Harris 4047 aluminum TIG welding rod is an R4047 high-silicon aluminum filler metal designed for GTAW / TIG welding and compatible aluminum joining applications. With approximately 11%–13% silicon, 4047 provides high fluidity, a relatively low melting point, reduced shrinkage, and excellent wetting characteristics.
Select the required diameter and package configuration from the product options above. Each available variation represents an actual Harris product configuration and determines the Harris item number, package weight, selling price, and cost.
Product Highlights
- AWS classification R4047 aluminum-silicon filler metal
- Designed for GTAW / TIG aluminum welding applications
- Approximately 11%–13% silicon content
- Lower melting point than 4043 aluminum filler metal
- High fluidity and excellent wetting characteristics
- Narrower freezing range than 4043
- Reduced shrinkage during solidification
- Can help minimize hot cracking in suitable aluminum applications
- Suitable for aluminum sheets, extrusions, castings, automotive components, and body panels
- Not recommended where post-weld anodized appearance is a primary requirement
Technical Specifications
| AWS Classification | R4047 |
|---|---|
| AWS Specification | AWS A5.10 / A5.10M |
| Filler Metal Type | High-Silicon Aluminum TIG Welding Rod |
| Welding Process | GTAW / TIG Welding |
| Nominal Silicon Content | 11.0%–13.0% |
| Recommended TIG Current | AC |
| Recommended Tungsten | Pure or Zirconiated Tungsten |
| Shielding Gas | 100% Argon or Argon / Helium Mixtures |
| Solidus | Approximately 1065°F (574°C) |
| Liquidus | Approximately 1170°F (632°C) |
| Density | Approximately 0.097 lb/cu. in. |
| Post-Anodize Color | Grey |
| Manufacturer | The Harris Products Group |
Typical Chemical Composition
| Aluminum | Balance |
|---|---|
| Silicon | 11.0%–13.0% |
| Iron | 0.80% Maximum |
| Copper | 0.30% Maximum |
| Manganese | 0.15% Maximum |
| Magnesium | 0.10% Maximum |
| Zinc | 0.20% Maximum |
| Beryllium | 0.0003% Maximum |
Recommended TIG Welding Parameters
| Material Thickness | Tungsten Electrode | Filler Rod Size | Amperage | Voltage | Gas Cup | Argon Flow |
|---|---|---|---|---|---|---|
| 1/16" | 1/16"–3/32" | 1/16"–3/32" | 70–100 A | 15 V | 3/8" | 20 CFH |
| 1/8" | 1/8"–5/32" | 1/8"–5/32" | 125–175 A | 15 V | 7/16" | 20 CFH |
| 3/16" | 5/32"–3/16" | 5/32"–3/16" | 170–225 A | 15 V | 7/16"–1/2" | 25 CFH |
| 1/4" | 3/16"–1/4" | 3/16" | 220–275 A | 15 V | 1/2" | 30 CFH |
| 3/8" | 1/4" | 3/16"–1/4" | 330–380 A | 15 V | 5/8" | 35 CFH |
| 1/2" | 1/4" | 1/4" | 400–450 A | 25 V | 5/8" | 35 CFH |
Harris publishes these values as basic starting guidelines. Actual welding parameters will vary with joint design, material condition, number of passes, welding position, equipment, shielding gas, and applicable welding procedure.
Performance Characteristics
| Fluidity | Higher fluidity than 4043 aluminum filler metal. |
|---|---|
| Melting Characteristics | Lower melting point and narrower freezing range than 4043. |
| Shrinkage | Reduced shrinkage characteristics during solidification. |
| Hot Cracking | Higher silicon content can help minimize hot cracking in suitable applications. |
| Wetting | Excellent flow and wetting characteristics for aluminum joining. |
| Anodizing Appearance | Not recommended when post-weld anodized color matching is required. |
Common Applications
Automotive & Fabrication
- Automotive components
- Aluminum body panels
- General aluminum fabrication
- Aluminum sheet fabrication
- Heat-sensitive aluminum assemblies
Extrusions, Castings & Repair
- Aluminum extrusions
- Aluminum castings
- Aluminum sheet joining
- Repair applications
- Aluminum brazing applications where appropriate
Product Resources
Review the manufacturer-published Harris technical specification sheet for 4047 aluminum filler metal composition, physical properties, specification compliance, and recommended MIG and TIG welding parameters.
View Harris 4047 Technical Data SheetNeed Help Selecting Harris 4047 Aluminum TIG Rod?
Our welding and industrial supply specialists can help you select the appropriate R4047 rod diameter and package configuration for your aluminum welding application.
Frequently Asked Questions
What is Harris 4047 aluminum TIG welding rod?
Harris 4047 is a high-silicon R4047 aluminum filler metal designed for TIG welding and compatible aluminum joining applications.
How is 4047 different from 4043 aluminum filler metal?
4047 contains more silicon than 4043. Harris identifies 4047 as having a lower melting point, narrower freezing range, increased fluidity, and reduced shrinkage compared with 4043.
What is the silicon content of Harris 4047?
Harris specifies a nominal silicon range of approximately 11%–13%.
What shielding gas is used for TIG welding 4047?
Harris identifies 100% Argon and Argon / Helium mixtures for aluminum welding applications. The published TIG starting-parameter table uses Argon.
What type of tungsten is recommended?
Harris identifies pure or zirconiated tungsten electrodes for its published AC TIG starting parameters.
What applications commonly use 4047 aluminum filler metal?
Typical applications include automotive components, body panels, aluminum sheets, extrusions, castings, and suitable aluminum brazing and repair work.
Can 4047 help reduce weld cracking?
Harris notes that the increased silicon content can help minimize hot cracking in suitable applications when 4047 is used as an appropriate substitute for 4043.
Is Harris 4047 recommended for parts that will be anodized?
Harris does not recommend 4047 where anodized appearance is important because the weld deposit does not provide a close anodized color match.
How do I choose the correct Harris 4047 TIG variation?
Select the exact rod diameter required for your application. Both available options on this page are packaged in 10 lb boxes and correspond to actual Harris SKUs.
Important Ordering Notes
- Select the required diameter before adding the product to your cart.
- Each available option represents an actual Harris 4047 TIG product configuration.
- The selected variation determines the Harris item number, selling price, weight, and cost.
- Both currently listed Harris 4047 TIG configurations are packaged in 10 lb boxes.
- Available diameters on this product page are 1/16" and 3/32".
- 4047 is not recommended when post-weld anodized appearance is a primary requirement.
- Published welding parameters are basic starting guidelines and should be adjusted to the actual welding procedure.
- Always verify filler-metal compatibility with the exact aluminum base alloy before welding.
- Always follow applicable welding procedures, manufacturer instructions, workplace safety requirements, and applicable codes.
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