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  1. SaeidNorouzi

    STANDARD for Pickling process

    dear all, I am looking for a specific standard regarding Pickling process after welding of stainless steels. regards, Saeed
  2. SaeidNorouzi

    GGG120

    Dear All, I want to cast a crank shaft using "GGG120". I need information regarding casting and heat treatment of this alloy. Thank you in advance, Saeid
  3. SaeidNorouzi

    SA-335 Grade P12 and P22

    hi all, what is the main practical difference between these two alloys: 1- SA-335 Grade P12 (USA / ASME) Cr(0.8-1.2) Mo(0.44-0.65) 2- SA-335 Grade P22 (USA / ASME) Cr(1.9-2.6) Mo(0.8-1.1) Is it possible to substitute the second item with first one? We are going to use them in boilers...
  4. SaeidNorouzi

    Forming Crack-free head

    Hello All, We are going to form a head for a presser vessel. Its diameter is about 3000mm. And it is made of A516Grade70 (Thk. is 32mm). Unfortunately, while forming we have cracks on the material (mostly on the smal diameter region) which cause rejection of the head. How can we form a...

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