Hastelloy C276 Globe Valve,150LB,2 Inch,RF End
Hastelloy alloy globe valve is a type of nickel based alloy, currently mainly divided into three series: B, C, and G. It is mainly used in strong corrosive media such as iron-based Cr-NI or Cr-Ni-Mo stainless steel, non-metallic materials, etc. It has been widely used in many fields such as petroleum, chemical, and environmental protection abroad.
Design Standard: ASME B16.34
Pressure-temperature Ratings: ASME B16.34
Size Range: 2” to 48”
Pressure Range: Class 150 to 2500
End Connections: Flanged RF, RTJ, Butt Weld
Flanged End Dimensions: ASME B16.5 (≤24”), ASME B16.47 Series A or B (>24”)
Butt Weld End Dimensions: ASME B16.25 Face to Face
Face to Face Dimensions: ASME B16.10
Inspection and Testing: API 598
Body Materials: ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3M, ASTM A351 CF8C
CN3MN, CK3MCUN, CN7M, ASTM A890 4A(CD3MN), ASTM A890 5A(CE3MN),
ASTM A890 6A(CD3MWCuN)
ASTM B148 C95800, ASTM B148 C95500.
Packing materials:Ptfe,PPL, graphite, graphite with inconel wire
Hastelloy alloy globe valves are currently mainly divided into three series: B, C, and G. They are mainly used in strong corrosive media such as iron-based Cr Ni or Cr Ni Mo stainless steel, non-metallic materials, etc. that cannot be used. In order to improve the corrosion resistance and cold and hot working performance of Hastelloy alloy, Hastelloy alloy has undergone three major improvements, and its development process is as follows: B series: B → B-2 (00Ni70Mo28) → B-3
C series: C → C-276 (00Cr16M016W4) → C-4 (00Cr16M016) → C-22 (00Cr22M013W3) – C-2000 (00Cr20M016) G series: GG-3 (00Cr22Ni48Mo7Cu) G-30 (00Cr30Ni48Mo7Cu) Previously used * Widely used are second-generation materials N10665 (B-2), N10276 (C-276), N06022 (C-22), N06455 (C-4), and N06985 (G-3). Hastelloy has excellent corrosion resistance for globe valves. A N-MO alloy with extremely low carbon and brick content, which reduces the precipitation of carbides and other phases in the weld and heat affected zone, ensuring good corrosion resistance even in the welded state. As is well known, Hastelloy alloys have excellent corrosion resistance in various reducing media, and can withstand corrosion by hydrochloric acid at any temperature and concentration under normal pressure. It has excellent corrosion resistance in non inflating medium concentration non oxidizing sulfuric acid, various concentrations of phosphoric acid, high-temperature acetic acid, formic acid and other organic acids, bromic acid, and hydrogen chloride gas. At the same time, it is also resistant to the corrosion of halogenated catalysts. Therefore, Hastelloy B-2 alloy is commonly used in various harsh petroleum and chemical processes, such as distillation and concentration of hydrochloric acid; In the production process of alkylation of ethylbenzene and low-pressure carbonylation synthesis of acetic acid.
