Welding Procedure for 0.5Cr-0.5Mo-0.25V

Materials Science, Metallurgy, Welding, NDTs, Reliability Assessment, Failure Analysis, etc.
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octane
Posts: 130
Joined: 08 Oct 2010, 15:38
Area of interest: Mechanical Engineering

Welding Procedure for 0.5Cr-0.5Mo-0.25V

Post by octane »

We have to weld some of our heater tubes.
Can somebody share the welding procedure for 0.5Cr-0.5Mo-0.25V?
mechcolor
Posts: 258
Joined: 17 May 2010, 18:05
Area of interest: Manufacturing Engineering

Re: Welding Procedure for 0.5Cr-0.5Mo-0.25V

Post by mechcolor »

Pre-heat: 200-250 deg C
Filler wire: ER90SB3
Electrode: E9018B3
PWHT at 675-715 deg C
Use low heat input during welding
irish
Posts: 66
Joined: 27 Nov 2010, 09:04
Area of interest: Mechanical Engineering

Re: Welding Procedure for 0.5Cr-0.5Mo-0.25V

Post by irish »

You must focus on low heat input while welding this material as it is susceptible to re-heat cracking.
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