[MW:13751] RE: 13739] How to reduce SA517 hardness

Dear sir,

The filler material you mention is a filler metal for high strength steel
and SA-517 in my opinion is a mild carbon steel (max 480 - 620 MPa) so in my
opinion this is not the correct filler metal.

Met vriendelijke groeten / Best Regards,

J.H.H. Pieper
IWI-C / IWT - Pieper QSI

Job van der Havestraat 6
8384 DB, Wilhelminaoord
Tel: 06-51691215

-----Oorspronkelijk bericht-----
Van: materials-welding@googlegroups.com
[mailto:materials-welding@googlegroups.com] Namens pradip kumar sil
Verzonden: zondag 19 februari 2012 9:43
Aan: materials-welding@googlegroups.com
CC: pgoswami
Onderwerp: [MW:13739] How to reduce SA517 hardness

Dear Sir,
We are using one material which is equivalent to SA-517 material ( Pressure
vessel plates, alloy steel, high strength, quenched & tempered ). with
electrode E-11018M. Climatic condition of the environment is minus 5 degree
Centigrade to plus six degree Centigrade.Parent material hardness is 230 BHN
but weld material hardness is coming approx 400 BHN which is not
acceptable. We are properly maintaining preheating i.e 250 degree
Centigrade as well as interpass temperature is 150 degree centigrade.
Pls guide me how can i reduce this material hardness.
Regards
Pradip

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