Self Shield or Not? | MIG Welding Forum

Munkul said:

...To my mind, if you want good welds, then you need to buy good consumables...

If you are looking for more details, kindly visit Jinertai.

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I agree % with you. Unfortunatelly there is not a dedicated category in the forum regarding consumables. Sometimes the quality of a welding drop or raise dramatically, if you just change the wire or electrode.

Regarding the flux wires now. If I have understood well,
I have used

General Remarks:
1) In all flux wires you have to change polarity in your machine, otherwise you will have eratic operation and many spatters.
2) ALL flux wires produce spatters. You can reduce them, if your machine has INDUCTANCE control. Turn it to full positive.
3) There are many anti-spatter sprays that you can use to spray the surrounding surfaces, you will save time later on grinding.
4) You cannot weld very thin plates (1mm or less) with flux wires, but you can weld better thicker plates (8-10mm)
5) It's better to pull than push the torch.
6) No-gas flux wires are ideal for outdoor usage, as they produce more fumes.
7) If you use gasless wire, you can remove the outer nozzle of your torch, so you can have a better view of the wire and the welding pool.
8) -GS is a general suffix for the E71T-GS, without any equirements in composition. This means practically that -GS wires cannot compared between them, as each manufacturer has its own composition.
9) E71T-11 wires are very common in USA, you can find many brands (Linkoln, ESAB, Hobart etc) that have their own wires. They are also very good for welding galvanized material. Be aware of dangerous fumes when welding galv. material.
10) All flux wires produce some slag, but it can easily removed with wire brush.

Remarks about the wires that I have tried:
a) Hyundai E71T-11 has the deaper penetration and is very good for thick material (8-10mm). Produces more slag & fumes, compared to INE.
b) Both INETUB wires have smooth run and produce less slag compared to Hyundai. Just for refference, INE E71T-GS has many & very good reviews in

Options: A Polish e-shop that I have bought from them many spairs and also a gas bottle, has flux wires from

Bottom line: My recomendation is to try with one small roll INE E71T-GS. If the results satisfy you, then go for a 5 Kg spool, if your machine accepts them. Otherwise, try another brand, until you find the wire that satisfies you. But, you will not dissapointed with INE.

I agree % with you. Unfortunatelly there is not a dedicated category in the forum regarding consumables. Sometimes the quality of a welding drop or raise dramatically, if you just change the wire or electrode.Regarding the flux wires now. If I have understood well, @Vambo needs a gasless flux wire. The most common categories in this class (and also available in D100 small rolls of 1 Kg) are the E71T-GS & E71T-11 (according to AWS 5.20 classification).I have used Hyundai Supershield 11 (E71T-11, 0.9mm), INETUB BA71GS & INETUB BA71T11 (both 0,8mm) & a cheap Taiwanese E71T-GS that I don't remember the name, all in 5 Kg rolls. I have run totally 5 spools during 2 years. So, according to this short experience, I have make the following notes:General Remarks:1) In all flux wires you have to change polarity in your machine, otherwise you will have eratic operation and many spatters.2) ALL flux wires produce spatters. You can reduce them, if your machine has INDUCTANCE control. Turn it to full positive.3) There are many anti-spatter sprays that you can use to spray the surrounding surfaces, you will save time later on grinding.4) You cannot weld very thin plates (1mm or less) with flux wires, but you can weld better thicker plates (8-10mm)5) It's better to pull than push the torch.6) No-gas flux wires are ideal for outdoor usage, as they produce more fumes.7) If you use gasless wire, you can remove the outer nozzle of your torch, so you can have a better view of the wire and the welding pool.8) -GS is a general suffix for the E71T-GS, without any equirements in composition. This means practically that -GS wires cannot compared between them, as each manufacturer has its own composition.9) E71T-11 wires are very common in USA, you can find many brands (Linkoln, ESAB, Hobart etc) that have their own wires. They are also very good for welding galvanized material. Be aware of dangerous fumes when welding galv. material.10) All flux wires produce some slag, but it can easily removed with wire brush.Remarks about the wires that I have tried:a) Hyundai E71T-11 has the deaper penetration and is very good for thick material (8-10mm). Produces more slag & fumes, compared to INE.b) Both INETUB wires have smooth run and produce less slag compared to Hyundai. Just for refference, INE E71T-GS has many & very good reviews in Amazon and it is rated as one of the top wires in a recent eview Options: A Polish e-shop that I have bought from them many spairs and also a gas bottle, has flux wires from Kiswel . They have also good reputation, butI have not try it yet. I will order one small roll just for trying & comparison. Canditates for testing are also the WeldingCity & Blue demon, but they are sold only in USA and shipping to Europe is very expensive.Bottom line: My recomendation is to try with one small roll INE E71T-GS. If the results satisfy you, then go for a 5 Kg spool, if your machine accepts them. Otherwise, try another brand, until you find the wire that satisfies you. But, you will not dissapointed with INE.

Product Description

Flux Cored welding Wire E71T-1C

AWS SPECIFICATION: AWS A5.20 ASME SFA-A5.20

Typical Applications:

&#; Pipeline

&#; Offshore structure

&#; Pressure vessel

&#; Structural parts of carbon steel and low alloy structural steel with tensile strength &#;490 MPA is the most widely used

Features:

&#; E71T-1 flux core MIG wire GMAW (MIG) welding alloy

&#; Designed for welding heat-treatable base alloys

&#; Suitable for sustained elevated temperature service

&#; All positions, include vertical down welding

&#; Gray-white(post anodized) color

Welding Current: (DCEN) Straight Polarity

Welding Positions: H, F, V-up, O

If you want to learn more, please visit our website e71t-1c welding.

Shielding Gas: 100% CO2

Performance Characteristics:

&#; E71T-1 is titanium oxide type CO2 gas shielded flux cored wire with excellent welding performance and soft and stable arc.

&#; Small splash, easy slag removal, beautiful welding seam. Suitable for all position of welding, the welding efficiency is high.

&#; The weld metal is treated with trace elements and has good low &#; temperature toughness, good crack resistance and stable and reliable intrinsic quality.

Available Sizes:

Diameter mm Spool 5kg Spool 15kg 1.2 &#; &#; 1.4 &#; &#; 1.6 &#; &#;

 

Mechanical Properties of Deposited Metal

Test Item Rm(N/mm2) Rel/Rpo.2(N/mm2) A (%) KV2(J)-20&#; Guarantee Value &#;480 &#;400 &#;22 &#;27 General Result 560 480 28 129

 

Reference Current (DC)

Diameter(mm) 1.2 1.4 1.6 Current(A) F 120-300 150-380 180-430 HF 120-280 150-320 180-380 V, OH 120-260 150-270 180-280 H 120-280 150-320 180-330 VD 200-280 220-300 250-300

Notice:

1. The flow rate of shield gas should be within 20L-25L/min

2. The wire extension should be 15mm-25mm.

3. The surfaces to be welded must be cleaned away from impurities of oil contamination, rust, moisture, and so on.

4. The welding conditions mentioned above are for reference only and it is better to do a welding procedure qualification according to the project before putting it into formal welding

 

Mechanical Properties of Deposited Metal(AW)

Are you interested in learning more about er 316 lsi welding? Contact us today to secure an expert consultation!

Yield Point ReH(Mpa) Tensile Strength Rm(Mpa) Elongation A4(%) Impact Value(J) Shield Gas -20&#; Co2 Standard &#;410 &#;500 &#;22 &#;47 purity 99 98 &#;.% Typical 550 585 27 80

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