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  1. Andyfoghorn

    Welding A514 Grade Q to API 2H Grade 50

    We have a 3" A514 tapered down to 2" API 2H On the coupons run so far we have run a temper bead cap with no real effect.Although we did run a coupon with 400preheat and a max interpass of 550 so maybe we,ll see some favourable results Thanks for the input glad im not going down a blind...
  2. Andyfoghorn

    Welding A514 Grade Q to API 2H Grade 50

    We have to Weld A514 Grade Q to API 2H Grade 50 and the question is how to lower the hardness values down to 325HV without having to PWHT.because the overmatch as far as yeild and tensile strengths are considerable between the two materials we are not overly concerned with the loss of some of...

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