electrode for SA 182 F22V material with AISI 4130

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We are qualifying a procedure to weld SA 182 F22V material with AISI 4130. we carried the welding two times but we failed to get the impact value which by our service requirements its 54J at -29 degree C. First time we used E8018-B2 the impact was ok in HAZ but it failed in WCL, then next time we used E10018-D2 but it got failed on HAZ of SA 182 F22V. Hence I would require you to suggest a good welding consumable to use and the different parameters used for the welding like, PWHT, Preheat, interpass, electrode size etc.
Reply:Try E9018-B3, 300 Pre, 700 Post.  JGSMAW,GMAW,FCAW,GTAW,SAW,PAC/PAW/OFCand Shielding Gases.  There all here. :
Reply:Electrode selection has little to do with HAZ CVN properties.You are welding F22, ( 2.25 Cr / 1.0 Mo ) to 4140 ( approx 1.0 Cr / 0.2 Mo ).Both these materials have poor low temp CVN properties after welding without PWHT. There are a few things you need to consider:Match the strength of the lower UTS material with consumables, ( this will depend on the supply condition of the 4140).Can you temper the 4140 at a higher temp to increase the tougness before welding. You will need to consider minimum requirement for yield to do this ? It is likely the HAZ of this material will struggle at -29 to achieve 54J unless it is tempered around 680°C.Other considerations:Preheat: 250°C minimumPWHT iaw ASME VIIIIf no PWHT, cool very slowly from preheat temperature in vermiculite etc.The requirement of 54J at -29°C is very tough for these materials to comply with even in an unwelded condition. F22 is aimed at elevated temperature service and 4140 is not typically used unless specific tempering treatments are applied, or it is used in the annealed condition.In summry, you are between a rock and a hard place my friend......Cheers
Reply:anyone who doesn't think welding is a very skilled and technical job, try to understand what they just wrote!  I am a rod burner....was that English you were writing.