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  1. Beth22

    Hardfacing overlay of AISI 4130

    metengr, but our client requires us to use Stellite 6 without a butter layer. Actually we already have a newly qualified WPS also hardfacing using stellite but different base material (A36 and A487) and this is the last WPS we need to qualify but I am a little bit stuck up on what else I can do...
  2. Beth22

    Hardfacing overlay of AISI 4130

    HAZ hardness: 293HV, 344HV and 438HV WM hardness: 311HV - 432HV Base metal hardness: 188HV - 210HV
  3. Beth22

    Hardfacing overlay of AISI 4130

    Hi, I am creating a new WPS for hardfacing overlay of AISI 4130 Q&T using the parameters below: Base metal Tensile: 655 MPa; Hardness: 235 HBW Filler: Stellite 6 (SFA-5.21; ERCoCr-A) Process: GTAW Preheat temp: 225ºC Current: 90-94 A Voltage: 10-13 V Travel Speed: 50-90 mm/min Heat Input: 0.921...

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