1GS400

PELCO® 400 Mesh Special Metal Grids

Material

  • for transmission electron microscopy
    packed in anti-static vials

    useful for EDX analysis, high temperature and cryo applications
    packed in anti-static vials

    These grids are available in molybdenum, titanium, aluminum and stainless steel 316. The grids are made by a high precision etching process. The thickness is approximately 25µm for Mo and Al, 15µm for Ti and 12µm for stainless steel. The pattern with the 350-400µm wide rim on the PELCO® grids provide greater stiffness and improves handling of the grids. All grids have a standard diameter of 3.0 to 3.05mm. Available styles are: square mesh, hexagonal mesh, double folding grids, tabbed grids, slotted and aperture grids. The square mesh and double folding grids have a center mark. For standard grid materials such as Cu, Ni and Au, please go to the PELCO® Grids page. Packaging: Mo, Ti, Al and Stainless Steel grids are packaged in 25grids/vial.

    400: Pitch 64µm; Hole Width 38µm; Bar Width 26µm; Transmission 35%

    1. PELCO® Center-Marked Grids, 400 mesh, 3.05mm O.D., Stainless Steel, 25/vial
    2. PELCO® Center-Marked Grids, 400 mesh, 3.05mm O.D., Titanium, 25/vial
    3. PELCO® Center-Marked Grids, 400 mesh, 3.05mm O.D., Aluminum, 25/vial
  • Rim Width: 350-400µm.
    Thickness: 25µm for Mo, and Al
    15µm for Ti
    12µm for Stainless Steel
    Diameter: 3.0 to 3.05mm
    Finish: Being made of thin foils, both sides show same surface
    Packaging: 25 grids/vial
    Pitch: Is 1"/mesh or 25.4mm/mesh
    Example 200 mesh pitch = 25.4/200 = 127µm


    From the drawing above, the hole and bar widths are shown. Sometimes "pitch" is used in this terminology and it is the equivalent of hole width plus bar width

    Material Code
    Alluminum A
    Molybdenum M
    Stainless Steel S
    Titanium T


    PELCO® Grid Size

    Square Mesh Pitch µm Hole µm Bar µm % Transmission
    75 339 284 55 70
    100 254 204 50 65
    200 127 90 37 50
    300 85 54 31 40
    400 64 38 26 35


  • Impurities (ppm) in PELCO® Special Metal Grids

    Element Aluminum Molybdenum Stainless Steel 316 Titanium
    Aluminum 99% <20 - <300
    Calcium - <20 - <20
    Carbon - <40 <1200 <300
    Chromium - <50 <16.5-20% <50
    Copper <1000 <20 - <5
    Hydrogen - <5 - <60
    Iron <7000 <50 balance <1500
    Lead - <30 - -
    Magnesium - <20 - -
    Manganese <1000 - <2% <100
    Molybdenum - 99% 2.0-3.5% <100
    Nickel - - <8-14% <50
    Nitrogen - <10 - <150
    Oxygen - <30 - <2000
    Potassium - <2 - -
    Silicon <5000 <50 - <300
    Tin - - - <200
    Titanium - <30 - balance
    Tungsten - <10 - -
    Zinc <1000 - - -