5.Does any body have any experiences about doing of SOHIC? if yes would you share it?and with regarding that this defect rarely happen, what time or conditions a client shall considered it?
6.If a carbon steel calded with N0825 that welded to carbon steel (API X60),with filler metal of ER NiCrMo3 now GHSC test shall be done or not?
7.Based on table A.2 from ISO15156 part3, austenitic stainless steel can withstand any chloride concentration up to 60 c.how is it possible that any clscc not happen?or maybe say when service isn't sour, this condition is true to say that material has corrosion resistance under any chloride concentration up to 60c.
Based on Annex A of ISO15156 part3, hardness of the weld metal shall not exceed the maximum hardness limit of the respective alloy used
for the welding consumable.now the questions arised:
for the welding consumable.now the questions arised:
8a.If we have welded a joint by two different filler metals now how hardness limit can be specified?
8b.If we selected a consumable that has either higher corrosion resistance or lower than base metal which in first case H charged to base metal and in case 2 charged to weld metal, both cases rises susceptibility of GHSC. now for both cases especially case 2, requirement of ANNEX A can be applied for them?
8c.With regarding to chemical composition of weldment differs from consumable or parent metal due to dilution, if we use from a consumable not closed to parent, how the above mentioned requirement can be explained?
9.What is the role of sulfur element in SCC&SSC?
10.If two different CRAs material joined, question 8 how can be answered?
Regards.
On Tuesday, February 26, 2019 at 5:48:48 AM UTC+3:30, asghar...@gmail.com wrote:
Dear All.I have some questions regarding sour service, would you help me about them.1. if a material comply with requirements of annex A and clause 8 of MR0175, is there any need to be HIC tested?or based on clause 8, if any material that meet it, purchaser would request to do HIC test from manufacture?2.if there is a conflict between requirements of A.2.1 and A.2.2, for example there is a P-No 1, Group 2 which has a higher hardness than criteria in A.2.1 either in weld or parent metal, what decision can be taken?3.is there any document to explain about HIC testing of forging?4.with considering that weld metal has a cast structure why in NACE TM 284 explain about sampling of weld?Regards
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