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  • Users: Paolo.I
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  1. Paolo.I

    Welding on SS and NACE MR0175

    Dear all, I have a question about welding on austenitic stainless steel according to NACE MR0175. In the PQR, do I need to demonstrate that the hardness meets the requirements? Does the PQR need specific tests to comply with NACE, or is austenitic stainless steel implicitly compliant? best regards,
  2. Paolo.I

    ASTM A333 GR.6 high haz and NACE Required ( 248 HV - 22HRC )

    Dear All, I need help we performed a butt weld ( full penetration ) qualification with the following characteristics: ASTM A350-LF2 to ASTM A333 GR.6 Thickness of pipe 5,54 [mm] Diameter of Test Coupon 60,30 [mm]( 2 inc ) Welding Process(es) GTAW Poition 6G Amps. 100 to 130 Volts 15 to 16...
  3. Paolo.I

    Load ring - for welding for low temperatures

    A well-known supplier of welded load ring, claims to supply an S355J2+N with impact test at -45. shouldn't he call it S355J4 / J5? Can S355 reach these temperatures? Thanks in advance for your answers
  4. Paolo.I

    Dissimilar Welding

    I have to weld a T-joint in full penetration with dissimilar thicknesses in Asme IX. Both materials are in carbon steel (P-N.1.2) the only QW that speaks of dissimilar thicknesses is QW-202.4. Base material 1 thickness 8mm Base material 2 thickness 35mm the QW-202.4 for the CS refers to the...

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