---
product_id: 438114262
title: "YESWELDER Silicon Aluminum Welding Wire ER4043 .030-Diameter, 1-Pound Spool"
brand: "yeswelder"
price: "€ 128.57"
currency: EUR
in_stock: true
url: https://www.desertcart.hr/products/438114262-yeswelder-silicon-aluminum-welding-wire-er4043-030-diameter-1-pound
store_origin: HR
region: Croatia
---

# 5% Silicon Aluminum Alloy 0.030-inch Diameter Precision Enhanced Crack & Corrosion Resistance YESWELDER Silicon Aluminum Welding Wire ER4043 .030-Diameter, 1-Pound Spool

**Brand:** yeswelder
**Price:** € 128.57
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate Your Aluminum Welding Game with YESWELDER ER4043 Wire!

## Quick Answers

- **What is this?** YESWELDER Silicon Aluminum Welding Wire ER4043 .030-Diameter, 1-Pound Spool by yeswelder
- **How much does it cost?** € 128.57 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/438114262-yeswelder-silicon-aluminum-welding-wire-er4043-030-diameter-1-pound)

## Best For

- yeswelder enthusiasts

## Why This Product

- Trusted yeswelder brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Optimized Melting Range:** Operates efficiently between 1065°F and 1170°F for precise control and superior weld quality.
- • **Crack-Resistant Strength:** Enhanced alloy composition reduces weld cracking, ensuring long-lasting, resilient bonds.
- • **Durable & Reliable Spool:** Robust ABS plastic spool designed to withstand transport and deliver consistent wire feed every time.
- • **Flawless Fluidity & Wetting:** Silicon additive ensures smooth, clean welds with minimal spatter for professional-grade finishes.
- • **Versatile Aluminum Compatibility:** Perfectly welds multiple aluminum grades including 3003, 5052, 6061, and casting alloys for all your projects.

## Overview

YESWELDER Silicon Aluminum Welding Wire ER4043 is a premium 0.030-inch diameter, 1-pound spool designed for MIG welding. Featuring a 5% silicon aluminum alloy, it delivers exceptional fluidity, crack resistance, and corrosion protection across a broad range of aluminum grades. Packaged on a durable ABS spool, this wire ensures smooth, professional welds with minimal spatter, making it the go-to choice for metal fabrication, auto repair, and maintenance pros.

## Description

Aluminum welding wire ER4043 is a general purpose type aluminum welding wire. It contains silicon additives, which result in improved fluidity (wetting action) of the weld pool and also produces a weld less sensitive to cracking. Its bright weld finish makes it a popular choice of welders. It can be used to weld various grades of aluminum.

## Features

- ER4043 WELDING WIRE: A premium 5% silicon aluminum (AlSi5) filler metal designed for the MIG welding process. This composition delivers excellent fluidity and wetting characteristics, making it ideal for welding a wide range of aluminum alloys. It features a melting range of 1065°F to 1170°F, a density of 0.097 lbs/in³, and produces a consistent gray finish after anodizing.
- EXCELLENT PERFORMANCE: The addition of silicon significantly enhances fluidity and wetting action, making this alloy a preferred choice among welders. It also improves crack resistance, ensuring a durable, long-lasting bond. The wire offers good corrosion resistance and is renowned for producing smooth, clean welds with minimal spatter.
- VERSATILE APPLICATIONS: Whether you’re tackling metal fabrication, auto repair, equipment maintenance, or DIY projects, this versatile welding wire delivers professional results every time.
- MATERIAL COMPATIBILITY: Suitable for welding various grades of aluminum, including 3003, 3004, 5052, 6061, 6063, as well as casting alloys such as 43, 355, 356, and 214.
- STRONG SPOOL: The wire is supplied on a robust spool constructed from a new ABS plastic material. This spool is highly durable, tough, and anti-fragile, ensuring it withstands the rigors of transportation and operates flawlessly within the welding machine.
- SPECIFICATION: Weight:1 lb / Diameter:.030 inch.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | YESWELDER |
| Country of Origin | USA |
| Item model number | ER4043/1LB-0.8 |
| Package Dimensions | 11.1 x 10.9 x 4.1 cm; 453.59 g |
| ASIN | B08B5QNLR1 |

## Images

![YESWELDER Silicon Aluminum Welding Wire ER4043 .030-Diameter, 1-Pound Spool - Image 1](https://m.media-amazon.com/images/I/71Sj2j6AdYL.jpg)
![YESWELDER Silicon Aluminum Welding Wire ER4043 .030-Diameter, 1-Pound Spool - Image 2](https://m.media-amazon.com/images/I/71cu0d-4+YL.jpg)
![YESWELDER Silicon Aluminum Welding Wire ER4043 .030-Diameter, 1-Pound Spool - Image 3](https://m.media-amazon.com/images/I/71G7aqO+lsL.jpg)
![YESWELDER Silicon Aluminum Welding Wire ER4043 .030-Diameter, 1-Pound Spool - Image 4](https://m.media-amazon.com/images/I/81NfmOr1F3L.jpg)
![YESWELDER Silicon Aluminum Welding Wire ER4043 .030-Diameter, 1-Pound Spool - Image 5](https://m.media-amazon.com/images/I/7130640MQJL.jpg)

## Frequently Bought Together

- YESWELDER Silicon Aluminum Welding Wire ER4043 .030-Diameter, 1-Pound Spool
- YESWELDER Spool Gun, 150A 10 FT Cable, Euro Connection Fits YESWELDER MIG-205DS (PRO)/MIG-185DS PRO Welder, Fits Tweco Welding Torch Head

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**Shop now:** [https://www.desertcart.hr/products/438114262-yeswelder-silicon-aluminum-welding-wire-er4043-030-diameter-1-pound](https://www.desertcart.hr/products/438114262-yeswelder-silicon-aluminum-welding-wire-er4043-030-diameter-1-pound)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-03*