Re: [MW:30535] Base Metal Hardness after PWHT

If you use a rebound hardness tester or some similar sources it may show low reading. Properly grind the surface and use a calibrated hardness machine. Your readings are low and it should be between 200 to 225 bhn

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On Fri, 21 Feb 2020 at 1:48 pm, patelroshankk@gmail.com

<patelroshankk@gmail.com> wrote:

Dear Experts,

For SA 182 F11 and SA 182 F22 materials after welding and PWHT hardness of Base Metal is reduced to 120 HB, is it acceptable or not ?

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