WB36, which is a German low alloy steel (LAS). It differs from typical LAS's primarily by the presence of Cu, which causes precipitation hardening, thereby increasing the strength by about 15-20KSI (103-138MPa) compared to a typical ASME/ASTM LAS, without decreasing the ductility.
15NiCuMoNb 5 (WB36,1.6368) is in Germany applied as PV-steel (up to 340°C) in some NPP and as pipe material (below 300°C) in many fossil power plants
Also you may refer code case 2353 in ASME BPV for this material
Main composition:
0.15%C, 1.15%Ni, 0.65%Cu, 0.35%Mo, 0.02%Nb
refer following link for info on consumables
http://www.t-put.com/english/files/welding_filler_metals_for_plant_engineering_01_2008.pdf
Dear all,
I am looking for this material
15 NiCuMoNb 5/1.6368 (WB36)
This is the pipe used for power plants of 600 MW. I could not able to match its spec. with ASME. I require one meter spool piece of diameter more than 12'' and thickness should be more than 40 mm for procedure qualification. I want to know following things.
1. Source of material.
2. What consumable to be used for GTAW/ SMAW/ SAW/FCAW.
3. The parameters.
4. PWHT heating cycle.
Regards
Ravinder Sharma
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