How to Improve Charpy Results for 3.5% Ni Steel?
How to Improve Charpy Results for 3.5% Ni Steel?
(OP)
Help!!!
I have just ran a PQR for welding 1" Thk A203 Gr.E Plate. The Impact requirements were 15 ft/lbs at -150 F.
The results were:
Weld C/L Cap 10,8,9
Weld C/L Root 9,8,17
HAZ Cap 27,29,21
HAZ Root 53,67,164
I welded the plate with GTAW,SMAW and SAW. The consumables were ER80S-Ni3, E8018-C2 and ENi3/Lincoln 860 flux respectively.
I set a pre-heat of 300F and an Interpass of 600F.
How can I improve the Impact results?
PS the tensile, bends and hardness survey were all good.
Thanks
I have just ran a PQR for welding 1" Thk A203 Gr.E Plate. The Impact requirements were 15 ft/lbs at -150 F.
The results were:
Weld C/L Cap 10,8,9
Weld C/L Root 9,8,17
HAZ Cap 27,29,21
HAZ Root 53,67,164
I welded the plate with GTAW,SMAW and SAW. The consumables were ER80S-Ni3, E8018-C2 and ENi3/Lincoln 860 flux respectively.
I set a pre-heat of 300F and an Interpass of 600F.
How can I improve the Impact results?
PS the tensile, bends and hardness survey were all good.
Thanks





RE: How to Improve Charpy Results for 3.5% Ni Steel?
Heat is death to charpys
better control of interpass temp (paramount)
should have passed
RE: How to Improve Charpy Results for 3.5% Ni Steel?
RE: How to Improve Charpy Results for 3.5% Ni Steel?
Would it be wise to reduce the pre-heat? Also, is there anything I can do with the PWHT. The failed plate was PWHT'd at 1100-1175F for 1hr.
Thanks
RE: How to Improve Charpy Results for 3.5% Ni Steel?
RE: How to Improve Charpy Results for 3.5% Ni Steel?
Do you have a suggestion for an alternative?
Thanks
RE: How to Improve Charpy Results for 3.5% Ni Steel?
RE: How to Improve Charpy Results for 3.5% Ni Steel?
RE: How to Improve Charpy Results for 3.5% Ni Steel?