If you have plans to work with a piece of thick metal, flux core welding might be the way to go. After all, this type of welding is ideal for heavy-duty materials including machine parts. But to enjoy its features, you will have to use the right flux core settings.
With years of formal welding training, you should be able to know these settings off-hand. However, if you are new in the field, a flux core welding chart might be ideal for getting the figures for making adjustments.
In this article, we will be showing charts for these settings. So if you are not sure about the flux core settings to use, you can go over the table and find the best settings for this task. Now let’s get started.
Flux Core Welding Settings Chart
Here are the settings needed for using flux core with E71T-GS + Tubular flow rate with a MIG welder. But before using these values, we suggest that you have a decent understanding of your preferred metal. Also, consider the amperage settings and the task at hand.
| Wire Type Gas Flow Rate |
Wire Size Diameter | Machine Settings for 9.5 mm Material Thickness
(Voltage/Wire Speed) |
Machine Settings for 8mm Material Thickness
(Voltage/Wire Speed) |
Machine Settings for 6.4 mm Material Thickness (Voltage/Wire Speed) |
Machine Settings for 4.8 mm Material Thickness
(Voltage/Wire Speed) |
Machine Settings for
2.8 mm Material Thickness (Voltage/Wire Speed) |
| E71T-GS
Flux Core Tubular |
0.030″ | 20/375 | 19/340 | 18.5/300 | 17.5/275 | 16/240 |
| 0.035″ | 21/300 | 20/275 | 18.5/250 | 17.5/210 | 16/170 | |
| 0.045″ | 22.5/230 | 21.5/205 | 19/180 | 17.5/140 | 16/100 |
Flux Core Welding Settings for E71T-GS + Flux Core + Tubular on MIG Welder (0.30 Wire Size)
- 5 mm material thickness: 20 ( Voltage), 375 ( Wire Speed)
- 8 mm material thickness: 20.5 ( Voltage), 335 ( Wire Speed)
- 4mm material thickness: 20 ( Voltage), 280 ( Wire Speed)
- 8mm material thickness: 19 ( Voltage), 240 ( Wire Speed)
- 8mm material thickness: 19 ( Voltage), 200 ( Wire Speed)
Flux Core Welding Settings for E71T-GS + Flux Core + Tubular on MIG Welder (0.035 Wire Size)
- 5 mm material thickness: 21 ( Voltage), 300 ( Wire Speed)
- 8 mm material thickness: 20 ( Voltage), 275 ( Wire Speed)
- 4mm material thickness: 18.5 ( Voltage), 250 ( Wire Speed)
- 8mm material thickness: 17.5 ( Voltage), 210 ( Wire Speed)
- 8mm material thickness: 16 (Voltage), 170 ( Wire Speed)
Flux Core Welding Chart for E71T-GS + Flux Core + Tubular on MIG Welder (0.040 Wire Size)
- 5 mm material thickness: 22.5 ( Voltage), 300 ( Wire Speed)
- 8 mm material thickness: 21.5 ( Voltage), 205 ( Wire Speed)
- 4mm material thickness: 19 ( Voltage), 180 ( Wire Speed)
- 8mm material thickness: 17.5 ( Voltage), 140 ( Wire Speed)
- 8mm material thickness: 16 (Voltage), 100 ( Wire Speed)
Flux Core Welding Chart for E71T-GS + Flux Core + Tubular on MIG Welder (0.030 Wire Wire)
Supposing the flux core welding involves an 0.030″ wire diameter, it would help if you set the MIG welder to right settings. Now let’s say you are using this welding on 9.5mm material, make sure you adjust the welder’s voltage and wire speed to 20 and 375 respectively. As for 8mm material thickness, leave the MIG welder settings on 19 and 340.
Working with the same E71T-GS + Flux Core + Tubular conditions but with 6.4mm inch material requires different settings. Instead of using random figures, stick to a voltage and wire speed of 20 and 280.
Flux Core Welding Chart for E71T-GS + Flux Core + Tubular on MIG Welder (0.035 Wire Diameter)
On the flux core chart, you can also find the voltage and wire speed settings for using a MIG welder with 0.035 ” inch wire. For instance, a volt setting and wire-speed of 19 and 340 works well with 8mm worth of metal. As for 6.4mm worth of material, the voltage and wire speed should stay at 19 and 180.
If your project includes 8mmm worth of material thickness ( with the above-listed conditions, you will have to set the welder to a voltage of 21.5. Then the wire speed should remain at 205.
Flux Core Welding Chart for E71T-GS + Flux Core + Tubular on MIG Welder ( 0.040 Wire Diameter)
As with the above-listed wire sizes, you will have to use varying settings for flux core welding with 0.040″ wire. If the wire will be used with 9.5mm worth of material, you should choose a voltage of 22.5 while maintaining a speed of 300. But if you prefer working with 8mm metal, consider setting the voltage to 21.5 while the wire speed remains at 205.
Flux Core Vertical Welding Settings
If your project involves vertical flux core settings, it would help if you also tried the following flat and horizontal settings. In this section, we list the required amps and volts for varying gas-shielded flux-cored wires.
| Settings | Amp/Volts | IPM |
| 0.035″ | 165/25 | 375 |
| 0.045″ | 195/25.5 | 275 |
| A0.052″ | 205/25.5 | 200 |
| 1/16 | 210/26 | 165 |
Asides from vertical welding, you can use the following settings for overhead welding. But before using these settings for the latter, simply increase the speed of the wire feed.
Which is better 0.030 or 0.035 flux wire?
According to experts, the better wire depends on the proposed project. For instance, the 0.030 wire is used for working on thinner metals of up to 16 gauge. However, 0.035 flux wire works best for welding metals from 16 gauge upwards.
Is Flux Core Welding Easy?
Although flux core welding sounds complicated, it is surprisingly easy. After all, any beginner can master its basic techniques within a short period. On top of that, the weld is cheap and does not require much to set up.
Is Flux Stronger than MIG?
No, both processes provide similar strength welds. Besides the similarity increases if the joints are correctly welded.
