Anban,
Please see some recommendations on welding of this alloy. Typically alloy 625 is recommended for welding this alloy , down to -196 deg C impact. Note attaching Bohler's product details does mean any endorsement of their product. Do a web search , similar products are offered by Metrode-Lincoln and EASB.
To the best my knowledge MR-0175 does not include this alloy, as 9%Nickel steel is typically not recommended for design and construction "Sour Service", as the service does not call for such alloys.
Feel free to share your project specifications , for further guidance if you wish so.
Thanks
Pradip Goswami, P.Eng,IWE
Welding & Metallurgical Specialist
Ontario, Canada
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Anban
Sent: Sunday, October 27, 2013 2:40 PM
To: materials-welding@googlegroups.com
Subject: [MW:19088] ASME Sect IX-Qualifying PQR for ASTM A333 Grade 8
Dear Experts
Pls share your expertise in qualifying PQR
2" and below - 100% GTAW.
Above 2 " - Intend to Weld Process - GTAW + SMAW , GTAW + FCAW.
Must comply to NACE MR0175.
Advise suitable welding consumable from ESAB / Lincoln/Sanvik..etc
-- Pls share your expertise in qualifying PQR
| ASTM A333 Grade 8 ( UNS K81340 ), CVN at -195 deg celcius. P.No- 11A/ Group No - 1. Min Dia 2" / Max Dia 8". Min Thk-11.0mm / Max Thk - 32.0mm. |
2" and below - 100% GTAW.
Above 2 " - Intend to Weld Process - GTAW + SMAW , GTAW + FCAW.
Must comply to NACE MR0175.
Advise suitable welding consumable from ESAB / Lincoln/Sanvik..etc
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