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  • Users: SFIIWE
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  1. SFIIWE

    Tube to tube sheet welding

    Hi, we have heat exchanger with tube sheet material 13CrMo4-5 th.20mm and the tubes are also 13CrMo4-5 od.60,3 th.2,1mm. the pressure is less than 0,5bar. for this welding joint is it necessary that we perform a PWHT? please refer to a standard. cause the pressure is less than 0,5bar and it is...

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