Re: [MW:16781] Re: Welding of Maraging Steel 250- Required Filler wire

Dear,

I dont has practical experience of Auto TIG, but it is recommended to use Auto Hotwire TIG for heavy wall thickness Maraging Steel because it increases the rate of deposition.

regards,

On Friday, February 15, 2013 4:16:42 PM UTC+5:30, Gopalakrishnan G wrote:

Thanks for reply.

As My client suggested to do in Auto TIG , But my doubt is whether Manual TIG will give the Required property as that AUTO TIG for MARAGING STEEL 250?

plz suggest the difference and problems encounter.

On Fri, Feb 15, 2013 at 12:23 PM, vineet kumar <vinee...@gmail.com> wrote:
DEAR,

REPLY IN RED TO YOUR QUERIES.

1) What type of Process can be used ? TIG or MIG - TIG MORE PREFERABLE
2) What type of Consumables can be used? CONSUMABLE SHALL BE SAME AS BASE METAL COMPOSITION
3) What type of gases to be used and their Purity Level? - ARGON HIGH PURITY LEVEL
4) Heat Treatement ? - NO PREHEATING & PWHT IN TWO STEP A) SOLUTION TREATMENT AT 820 C FOR 1 hr B) FULL AGEING TREATMENT AT 480 C FOR 3 hr.
5) what are the welding conditions to be followed when welding this steel?- A) HIGH HEAT INPUT ARE AVOIDED B) ELEVATED TEMP. FOR LONG PERIOD IS AVOIDED C) DONOT PREHEAT & KEEP INTERPASS BELOW 250 F.

REDARDS,
VINEET KUMAR

On Thursday, February 14, 2013 6:09:30 PM UTC+5:30, Gopalakrishnan G wrote:
Can Any one Suggest me the weldability of Maraging Steel 250 ( ASTM A 579 Grade 72).Thaickness - 8 mm ( Full Penetration)

1) What type of Process can be used ? TIG or MIG
2) What type of Consumables can be used?
3) What type of gases to be used and their Purity Level?
4) Heat Treatement ?
5) what are the welding conditions to be followed when welding this steel?

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G.Gopalakrishnan
Welding Engineer
Mukand Ltd
Mumbai
Moble :+91-9833397917

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