Why preheat to improve the weldability of some high strength steels?

[@EnriqueAgmedra]

I just purchased a Hardox 500 wearplate can I use a 7018 electrode welding. Do i still have to preheat the welding surface and the surroundings. We usually work in an average weather temperature of 40 degrees celsius. We are going to weld a hardox 500 wear plate with an ESCO Steel bucket.... thanks.

[@ssab]

Thank you Enrique for your question! In order to give the answer, we would need to know the exact plate thickness. Please contact our tech support at [phone] for further help. Thanks!

[@EnriqueAgmedra]

thanks... we weld it perfectly with 7018 5/32 elding rods. thanks. if you give me an email y can send you a picture of the bucket.

[@ssab]

Great to hear! If you want, you can send the picture to [e-mail]. Thanks!

[@DaveCossairt]

first off great video! second, A. what is that green instrument? and B. how much does that green instrument cost.

[@Izeball]

It's called Tastotherm D700, and the cost is about 450-500 SEK.

[@ssab]

Thanks! You beat us in speed ;)

[@rajeshvnit]

what should be pre-heating temperature for heat treated parts (40 - 43 HRC).
material thickness 7.1 mm thick

[@ssab]

Thanks for the message! For us to best serve you, please contact our technical experts directly via email at [e-mail].

[@sazabi-zc3ir]

Hi: I plan to get some SSAB Strenx 1100 high strength steel sheet (1.2 or 1.4mm thick) to repair my car. I read the welding instruction, which seems to require ER120S1 rod to work with a TIG welder. Since it's going be thin metal sheet welding, do I steel need to pre-heat it or room temperature will be enough? Also, in your document it says ER120X, is that same as ER120S1?

[@ssab]

Thanks for the message! The best way to proceed and get answers to your questions is if you contact our technical experts via email at [e-mail]. Best of luck to the car repair!

[@petter5721]

👍🏻

[@this_is_not_a_page2090]

great accent

[@zapol1624]

👍