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Welding Hardened & Tempered Steel

Welding Hardened & Tempered Steel

Welding Hardened & Tempered Steel

(OP)
I have 2no  60mm diameter solid steel bars which I am attaching, one to each end, to a muck skip to act as trunnions.  In order to attach these trunnion bars to the skip I am considering using a welded connection.  My problem is finding guidance on the welding of such steels.

The steel is graded as  USALOY 24T - USEN 24T
This is a 1.5% Nickel Chromium Molybdenum Steel

Am I correct in thinking that the heat effects of welding will require the entire connection to be re-hardened or re-tempered, or is there a recognised code or procedure for this type of weld that does not require post-weld treatment?

Regards



Andy Machon
Andy@machona.freeserve.co.uk
 
 

RE: Welding Hardened & Tempered Steel

Hi!
I suggest you be more carefull about it, as you are dealing with alloy steel. There are good refrences about welding chromium alloy. You will be needing compatible type of electrodes and special welding procedures.As you see it is more than heat hardenning or simple staff like that. First of all consult AWS (American Welding Society). You may find their web site easily. Also go to the site www.nidi.org for free information and a lot of material for stainless steels.
Good luck.

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