[MW:16018] filler material propertis- E9018-G after PWHT Quench and temper.

Dear experts,

 

Please provide us some guidance.

 

Situation:

We are salvaging castings of grade ASTM A487-4C, using filler material E 9018-G (Ni- less than 1%). This material needs to comply with filler metal chemistry per NACE MR 01 75.

We intend to do a PWHT as Normalize, quench and temper as similar to that of the parent metal.

Proposed austenize (normalize) temperature is 920 Deg C and temper temperature is of 680 Deg C.

Please clarify us the following:

1. Would the all weld metal mechanical properties still meet the parent material requirements? (after Normalize, quench and temper)
2. Does the weld metal charpy values meet 27J at minus 46 DegC?
3. what would be the microstructure of the filler material after PWHT?
4. Any filler material available that guarantee the above mechanicalproperties in normalize, quench temper condition suitable for A 487-4C material?

MANIVANNAN.P
COIMBATORE.

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