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Nickel Machined Parts

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Pure nickel blind flange cover

  • Material: N200 industrial pure nickel (N6, UNS N02200)
  • Executive standards: GB/T 2054, HG/T20592, ASTM B160
  • Specification: DN15-DN500, pressure PN6/10/16/25/40, RF raised face seal
  • Supply status: vacuum annealing pickling, smooth and flat sealing surface by fine turning
  • Product Description:Pure nickel blind flange cover is integrally machined with N200 (N6) pure nickel forging for pipe end sealing. The whole set is made of the same nickel material without galvanic corrosion. It is resis
[ Material Performance ]
1. Mechanical property: nickel material has good tenacity and stable bearing capacity. The flange cover is overall thick and not easy to deform and warp under long-term bearing capacity;
2. Anti-corrosion performance: resistant to concentrated alkali, molten alkali and hydrofluoric acid medium, no galvanic corrosion with the whole set of nickel fittings;
3. Physical and chemical characteristics: stable thermal conductivity, high temperature oxidation resistance, low air release under vacuum condition;
4. Application advantages: good sealing performance, convenient maintenance and disassembly, long-term isolation of corrosive medium pipelines.


[ Process structure ]

1. One-body forging and one-piece molding, dense internal structure, no hidden dangers of air hole and interlayer leakage;
2. Precision turning of sealing surface, high flatness, and corrosion resistant gasket not easy to leak;
3. Vacuum annealing can eliminate the turning stress and avoid deformation and edge warping during use;
4. Dimensional tolerance standard, completely matched with nickel flange of the same specification, with strong interchangeability.


[ Application field ]

1. Chlor-alkali chemical: end of caustic soda conveying pipeline and pipe orifice of storage tank are blocked;
2. Fluorine chemical industry: spare nozzle isolation blind cover for hydrofluoric acid equipment;
3. New energy metallurgy: pipe plugging accessories of electrolyte circulating nickel heat exchanger;
4. Electronic vacuum: seal the reserved port of high-purity alkali gas equipment;
5. LABORATORY EQUIPMENT: Small alkaline fluid unit piping seal flanges.