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        Hastelloy alloy (Hastelloy alloy)

        Date:2012年1月11日 10:59

        A at present mainly divided into B, C, G three series, it is mainly used for iron Cr-Ni or Cr-Ni-Mo stainless steel, non metal materials can not be used with strong corrosive media occasions.
        In order to improve the corrosion resistance of Hastelloy alloy, hot and cold processing performance, Hastelloy alloy has carried out three major improvement, the development process is as follows:
        B series: B - B-2 (00Ni70Mo28), B-3
        C series: C - C-276 (00Cr16Mo16W4), C-4 (00Cr16Mo16), C-22 (00Cr22Mo13W3), C-2000 (00Cr20Mo16)
        G series: G - G-3 (00Cr22Ni48Mo7Cu), G-30 (00Cr30Ni48Mo7Cu)
        At present, the most widely used is the second generation of material N10665 (B-2), N10276 (C-276), N06022 (C-22), N06455 (C-4) and N06985 (G-3).
        Two, the typical Hastelloy alloy chemical composition: see table.
        Three, mechanical properties
        Mechanical properties of Hastelloy alloy is very prominent, it has characteristics of high strength, high toughness, so there are some difficulties in machining, and the strain hardening tendency is very strong, when the deformation rate is up to 15%, about two times of 18-8 stainless steel. There are also mild sensitization area Hastelloy alloy, the sensitized tend to increase with increasing deformation rate. When the temperature is high, easy to absorb the harmful elements of Hastelloy alloy. The mechanical properties and corrosion resistance decrease it.

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