Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

blockbuster ulit to !!!

we're waiting master rosy !!!

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

nice thread...

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

THANKS jonathanscruz68 and clayfigur, it will be soon and I'll try my best best again to deliver so that all of us may benefit from the exercises and possible some small WIPs.

Thanks again mga brader !!!!!!!! 😀 :thanks: 😀

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

-----Before anything else and before I go to the nitty gritty of welding STAINLESS STEEL, I've decided to educate my self first and did some research regarding this material. I would like also to share and infuse some short informations gathered from the internet about this kind of steel. I know these infos can be very helpful to all of us guys interested in welding, may it be MIG welding, TIG welding or SMAW welding. 😉

ALL INFORMATIONS ARE FROM THE WISE GEEK. www.wisegeek.com

First and foremost, lets read and understand the answers to this following questions like :
1.) WHAT IS STAINLESS STEEL ?
2.) WHAT ARE THE BEST METHODS FOR STAINLESS STEEL WELDING ?
3.) WHAT DOES A STAINLESS STEEL WELDER DO ?

-----------------------------------

[COLOR="Teal"]1). WHAT IS STAINLESS STEEL ?

Stainless steel is the universal name for a number of different steels used primarily for anti-corrosive elements. Stainless steel has been developed to resist a number of corrosive environments. It ensures that our work places are safe, buildings last longer and that our food preparation surfaces are hygienic. Stainless steel is also an earth friendly material, it can be melted down, recycled and be made into something else.

Stainless steel is always made using chromium and the minimum amount of chromium use to make stainless steel is 10.5%, it is the chromium that makes the steel stainless. Chromium also improves the corrosion resistance. There are other elements used to make stainless steel as well, like nickel, nitrogen and molybdenum. Bringing these elements together forms different crystal structures that enables variety of properties in machining, welding and forming.

There are four major types of stainless steel, Austeritic, Ferritic, Martensitic and Duplex stainless steel, but I'd rather not include the infos anymore since its already very technical.

Stainless steel is a very versatile material, it can literally be used for years and remain stainless, it has significantly longer life span than products made of other material, has less maintenance costs and with a very high scrap value.

[COLOR="Teal"]2.) WHAT ARE THE BEST METHODS FOR STAINLESS STEEL WELDING ?

Stainless steel welding requires a bit more finess than welding mild steel or aluminum. When welding stainless steel, heat is the enemy. There are three methods of stainless steal welding., Metal Inert gas welding( MIG ), Tungsten Inert gas welding ( TIG ), and the Shielded Metal arc welding ( SMAW ). Stainless steel welding fumes are very harmful and great care must be taken to avoid breathing them.

MIG stainless steel welding uses a wire containing a flux core along with a shielding gas to make the weld. The shielding gas is commonly 100% carbon dioxide or a carbon dioxide/argon mix. This gas prevents oxidation and promotes stable arc while the flux core of the wire allows stainless steel welding to be performed in all position. A mixture of 20 to 25 percent of argon with the carbon dioxide will allow a low heat setting to be used when mig welding, resulting in a weld with less distortion and discoloration.

TIG stainless steel welding utilizes a tungsten welding electrodes, a filler metal rod and an inert gas to shield the weld. This welding method requires little or no post weld finishing. The tungsten tip in the welding torch is touched to the material to be welded. This creates an arc that the welder dips the filler metal rod into and allows it to melt into the welding puddle. The shielding gas prevents contamination from entering the weld and allows the weld to flow out smoothly. Heat is controlled through a foot switch or in some cases a hand trigger.

SMAW stainless steel welding uses an electrode or welding rod, coated with chemicals commonly referred as flux. This coating burns off as the welding rod is melted into the weld joint and shields the weld from contaminates. This method of welding utilizes equipment which is typically the least expensive. The smaw weld will require the welder to remove the slag residue from the cooled weld by chipping it away with a hammer and clearing it with a wire brush.

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

CONTINUATION ON THE TOPIC :

[COLOR="Teal"]3.) WHAT DOES A STAINLESS STEEL WELDER DO ?

A stainless steel welder connects pieces of stainless steel through the use of a welder and the welds are typically made by using one of the three methods, MIG, TIG, and SMAW welding. Welding stainless steel requires ventilation to keep fumes away from the head of the welder. The fumes created by welding stainless steel can be extremely toxic and often require the stainless steel welder to wear protective suit, breathing apparatus during the welding process. The tremendous amount of heat generated when welding requires the welder to also wear protective gloves and an apron to prevent burning the clothes and skin while welding.

The brightness of the weld arc is very similar to looking directly into the sun, this mandates a very dark lens be used in a protective welder's helmet to protect the welder's eyes. The helmet also guards against burns from flying sparks.

There are many grades of stainless steel a welder must be familiar with and each grade of steel requires special measures to be taken in order to correctly weld the metal. Some types of stainless steel require the welder to preheat the steel to get a satisfactory weld. The welder must understand what each type of metal requires in order to make the strongest weld possible or risk the weld failing prematurely.

The stainless steel welder must properly prepare the steel for welding by one of several methods of cleaning the steel. Know the proper welding rods, wire or filler stick must then be selected to make the correct weld joint. The correct heat range to provide the best weld is selected and dialed into the welder and then the weld can be completed.

I just hope that with these informations, we may be able to understand how to go about in welding stainless steel and this is also in a way much different from welding MILD STEEL.

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

You reminded me again bro that I have a stainless steel welding job still pending from long time. The car foam washer's leaking tank. Too lazy to reload the Mig welder with stainless steel wire.

Subscribed.

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

JayL, EHE HE HE HE HE HE , oh yes last June or July pa yata yuon.

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

Up date lang po sa thread na ito, It took me for a while to gather all the necessary materials that I will be using for this stick welding on stainless steel, have to go to several scrap yards searching for scrap stainless steel. I ended up buying at a nearby hardware store also selling various or assorted steels, and these are what I got scrap cuts of different stainless steel, and they are not C H E A P !!!!!! Also included in the photo some stainless steel welding rod which I bought at 12.00 php per rod. 😮 :p

Hope you can still wait for this Stainless Steel PIP since I am still finishing some WIPS for the Stick Welding on thin sheet metal which I will be posting soon. Thank you very much. :thanks:

------------------------

If you can see in the pic, I have marked all the stainless steel with their purchase prices, they sell each piece by the foot and is quite expensive ha !!!!

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

not only that bro, plus yung stainless steel rod, Php10.00 per piece? or Php15.00?

abang mode 😀

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

P15 / pc kuha ko sa Stainless steel rod Oz ... mas mura kela Bro Rosy. Nihon Weld yata brand pero I'm sure.

Me kamahalan talaga stainless. Yung mga stainless pipes ginamit ko sa compressor piping ko nagulat ako nung total ko project cost. Laki ng difference kesa kung GI pipes ginamit ko.

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

VERY VERY SOON na po !!!!!

Since I have completed my PIPs on " Stick Welding on thin sheet Metal " , am now preparing working on this thread and will be posting maybe topics or projects to work on and possibly too start posting pics so that others may learn or get something useful out of the WIPs. :rockf: :p 😉

THANKS A LOT for waiting . :thanks:

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

OK guys its time for this thread to be ball rolling and I have already started working on the stainless steel materials that were posted previously.

This will be the first time that I will be using this kind of welding rod and kinda excited on the possible results after welding. I've heard also and have been told that to be very careful after applying the weld beads on the metal and I will explain that later when I start posting pics.

To start with the welding, I did first some exercises on some stainless sheet panel and I think its about gauge 20 or 22, yeah that is how thin it is. The materials that I will be using were sourced from a junk shop and a hardware selling steel and sigh, so expensive for practice or exercise but of course that's how it is, have to sacrifice on the cost to be able to learn the proper use of these materials for welding.

I decided to do the exercise just to find out first how the metal will respond while applying the welds. This thread will not totally be a " Practice in Progress " thread, but will be a continuing process of a bit of exercise on such metal before infusing mini WIPS along the way. I do hope I can again impart some useful tips or knowledge while welding all through the way.

[COLOR="Red"]EXERCISE ON THIN SHEETS no. 1 :

My set up before welding, I'll do some exercises on the stainless steel thin sheet just to find out how the welding rod and the thin sheet will react to each other, I do feel I'll be burning holes on the steel sheet since its too thin similar to the C-Purlins that I did practiced before.

I have gone back to using my locally made welder coz it can give a lower ampere setting compared to the Yamato welder which has only a lowest setting of 60 amperes.

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

The welding rods that I will be using, A StainArc 308 and a Nihonweld NSS 308.

As I have suspected, punched holes almost all of the entire stainless metal sheet. I made 100 attempts and made only 27 or 28 that did not got punched. Hmmm I'll try again on another sheet and see if there will be some improvements. LOL

Re: STICK WELDING on STAINLESS STEEL sheets, plates and more.

Here is the second stainless sheet :

And just the same, did punched wholes again on the entire stainless sheet but I think there were some improvements made, medyo mas marami na ang hindi nabutas. Probably I should have more hand and wrist control when applying the weld. :p

Now after the exercise, made some assestment on the whole welding process and came up with the conclusion that, 1. Welding rod used is not the right one, should have been a 3/32 stainless steel rod., 2. The stainless sheet is so thin that the heat output is too much for the metal to withstand., and 3. Maybe I should leave thin sheet metals to a TIG machine. 😀

TO BE CONTINUED...........