Scientific Instrument Services, Inc.  Supplies and Services for Mass Spectrometers, Gas Chromatographs, and Liquid Chromatographs.
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Filament & Heater Wire Material

For the repair or manufacture of mass spec filaments and heaters

Scientific Instrument Services supplies a wide range of resistance type wires for the repair and manufacture of filaments and heaters for mass spectrometers, SEM's and scientific instruments. Wires such as rhenium, tungsten, platinum, and tantalum are often used for these applications.

Thermocouple wires such as constantan and iron can be used to manufacture your own thermocouples. In addition we supply a wide range of high purity wires including gold, silver and platinum for a wide range of uses including gasket fabrication and sputter coating. In addition to the wires listed below we can obtain other sizes and types. Call with your specifications for a price quotation.

Quantity discounts - 10% discount on quantities of 10 or more feet with the exception of gold, silver, and platinum.


Index of Wires and Ribbons

See Also


Additional types of wires available on special request. 10% discount on quantities of 10 or more feet on all wires except gold, silver and platinum.

Narrow within by keywords:
  • Alumel (95% Al/5% NI) WireAlumel (95% Al/5% NI) Wire
    Alumel is a nickel/aluminum magnetic alloy used in the production of thermocouples and thermocouple extension wires.
  • Chromalloy O WireChromalloy O Wire
    Chromalloy O wire is an alloy wire used at operating temperatures up to 1200C. Its chemical composition gives good oxidation resistance especially under conditions of frequent switching or wide temperature fluctuations. Applications include heating elements in both domestic and industrial appliances and in control resistors.
  • Chromel (90% NI/10% CR) WireChromel (90% NI/10% CR) Wire
    Chromel is a nickel/chromium alloy used in the production of thermocouples and thermocouple extension wires.
  • Constantan (55% CU/45%NI) WireConstantan (55% CU/45%NI) Wire
    Constantan is a copper/nickel alloy used in the production of thermocouples and thermocouple extension wires as well as precision resistors and low temperature resistance heating applications.
  • Copper Wire (OFHC)Copper Wire (OFHC)
    Copper wire has an extremely high electrical conductivity making it highly suitable for electrical connections and thermal conductivity applications.
  • Gold WireGold Wire
    High purity gold wire for a wide range of uses including gasket fabrication and sputter coating and other scientific applications.
  • Inconel 600 & X750 WireInconel 600 & X750 Wire
    Inconel wire is a nickel-chromium alloy wire for applications requiring good resistance to oxidation and corrosion at high temperatures.
  • Iridium Wire & RibbonIridium Wire & Ribbon
    Iridium wire is the most corrosion-resistant wire known, and is often used for the manufacture and repair of filaments and heaters and electrical applications.
  • Iron WireIron Wire
    Iron wire is a resistance type wire often used for the manufacture and repair of filaments and heaters.
  • Kovar WireKovar Wire
    Kovar wire is a nickel iron alloy commonly used in lead wire for mercury switches and in semiconductor devices. It is also widely used in power tubes, microwave tubes, diodes, and transistors.
  • 50%Moly/50% Rhenium Wire50%Moly/50% Rhenium Wire
    Molybdenum wire is used in a broad range of applications in many industries. Mandrels for making tungsten filaments along with leads, filament supports, and seals are among a few.
  • Nichrome (80% NI/20% CR) Wire & RibbonNichrome (80% NI/20% CR) Wire & Ribbon
    Nichrome is a non-magnetic alloy of nickel and chromium. Nichrome is widely used in heating elements. It is wound in wire coils to a certain electrical resistance, and current passed through to produce heat.
  • Nickel Wire & RibbonNickel Wire & Ribbon
    Nickel wire provides good corrosion resistance. It is most suitable for use in electronic components, temperature sensors, electrical resistance thermometers and other electrical applications.
  • NI52 Alloy (50% NI/50% FE) WireNI52 Alloy (50% NI/50% FE) Wire
    NI52 is a nickel iron alloy suitable for glass and ceramic sealing to metal. It is commonly used in magnetic reed blade switches, lead wire for mercury switches and in semiconductor devices.
  • Platinum Wire & RibbonPlatinum Wire & Ribbon
    Platinum Wire is used in many applications including gasket or o-ring fabrication, thermocouples, electrical contacts, and heater coils.
  • Rhenium Wire & RibbonRhenium Wire & Ribbon
    Rhenium Wire and Ribbon is used to manufacture filaments for mass spectrometers and ion gauges as well as medical applications.
  • Rhenium /  Tungsten Wire & RibbonRhenium / Tungsten Wire & Ribbon
    Rhenium/Tungsten Wire and Ribbon is used in the manufacture of mass spectrometer filaments and heater coil as well as in the manufacture of thermocouples.
  •  Rhodium /  Platinum Wire Rhodium / Platinum Wire
    Rhodium/Platinum wire and ribbon are highly resistant to oxidation and corrosion at high temperatures and are used in the production of thermocouples
  • Silver Wire & RibbonSilver Wire & Ribbon
    Silver wire and ribbon has the highest electrical and thermal conductivity of all metals. It is used to make lead wires for some mass spectrometer filaments and heaters.
  • Stainless Steel Wire & Ribbon, Type 302 & 304Stainless Steel Wire & Ribbon, Type 302 & 304
    Stainless Steel Wires and Ribbons - Filament and Heater Materials Stainless Steel wire does not stain, corrode or rust easily as ordinary steel wire. This makes it useful in the manufacture of filament post material for mass spectrometer filaments 302 Stainless Steel Wire W222 : 302 Stainless Steel Wire, Diameter (in)=0.005, Diameter (mm)=0.13, (ohms/cm)=0.56960 304 Stainless Steel Wire W224 : 304 Stainless Steel Wire, Diameter (in)=0.010, Diameter (mm)=0.25, (ohms/cm)=0.14464,W225 : 304 Stainle
  • Tantalum Wire & RibbonTantalum Wire & Ribbon
    Tantalum Wire and Ribbon is corrosion resistant and has good thermal conductivity. Some of its uses is in the manufacture of heating elements, vacuum tubes and other high temperature parts
  • 90% Tantalum / 10% Tungsten Wire & Ribbon90% Tantalum / 10% Tungsten Wire & Ribbon
    Tantalum/Tungsten Wire and Ribbon has excellent corrosion resistance and is used in the manufacture of heating elements.
  • Trophet Trophet "C" Wire
    Trophet "C" Wire - Filament and Heater Material Trophet "C" Wire W297 : Trophet C Wire, Diameter (in)=0.0088, Diameter (mm)=0.22, (ohms/cm)=0.27963 Additional types of wires available on special request. See Also Index of Wires and Ribbons
  • Tungsten Wire & RibbonTungsten Wire & Ribbon
    Tungsten is practically the only material used for electron emitters. The advantage of tungsten is its extremely low vapor pressure even at high temperatures.
  • Copper and Silver Lead Wire for Finnigan Mass SpecsCopper and Silver Lead Wire for Finnigan Mass Specs
    Finnigan MAT Copper and Silver Lead Wire Both copper and silver wire are available for use on Finnigan mass spec sources. Finnigan has routinely used 0.020" diameter copper in the past for this purpose. Silver however, is a better conductor and is used by most other instrument manufacturers. In addition, silver is not as reactive with gases, such as ammonia, when used in CI operations. The silver wire being offered is pure silver and the copper is bare, uncoated OFHC hard copper. W29410 : ,
  • Gold Wire Ring Vacuum GasketsGold Wire Ring Vacuum Gaskets
    Gold Wire Ring Vacuum Gaskets Pure Gold (99.99%) wire ring vacuum gaskets are available in four diameters of wire; ie. 0.020", 0.025", 0.031", and 0.040" diameters. Any size gold gasket can be constructed from these wires as listed in the table below. When ordering gaskets determine the I.D. as closely as possible and order using the gold diameter and your measured gasket I.D. Remember when ordering, that gold gaskets can be stretched slightly (1 to 2%) to allow snug fitting
  • Gold and Silver/Tin Wire/Foil for Gasket FabricationGold and Silver/Tin Wire/Foil for Gasket Fabrication
    Gold and Silver/Tin Wire/Foil for Gasket Fabrication Gold Wire for Gasket Fabrication Pure gold wire (24K, 99.99% pure) for use in gold gasket fabrication, sputter coasters or other scientific applications. W351 : Gold Wire (24K, 99.99% pure), Diameter (in)=0.020, Diameter (mm)=0.50, (ohms/cm)=0.00120,W352 : Gold Wire (24K, 99.99% pure), Diameter (in)=0.025, Diameter (mm)=0.64, (ohms/cm)=0.00073,W353 : Gold Wire (24K, 99.99% pure), Diameter (in)=0.031, Diameter (mm)=0.79, (ohms/cm)=0.00048,W354
  • Heater Coils, Resistance wire, custom & standardHeater Coils, Resistance wire, custom & standard
    The heater coils listed below are the standard size coils used on several mass spectrometer heaters repaired by S.I.S. HC1 : Heater Coils, Wire Diameter (in)=0.006, Style=A, Composition=Tungsten, Length=0.25 in, ID (in)=0.028, OD (in)=0.040, # of Coils=25,HC2 : Heater Coils, Wire Diameter (in)=0.006, Style=A, Composition=3%Re/97%W, Length=0.25 in, ID (in)=0.028, OD (in)=0.040, # of Coils=25,HC3 : Heater Coils, Wire Diameter (in)=0.007, Style=A, Composition=3%Re/97%W, Where Used=Dupont 490, Lengt
  • Heater Link Wire, FinniganHeater Link Wire, Finnigan $21.50
    Finnigan MAT Heater Link Wire The copper wire ceramic insulated heater link wire is available from S.I.S. (Finnigan #50020-01001). H01001 : Heater Link Wire for Finnigan MAT, Finnigan #=50020-01001
  • Jet Separator Cleaning Tools and WiresJet Separator Cleaning Tools and Wires
    Jet Separator Tools Cleaning Wire Tools for Unclogging Jet Separators Clean Clogged Jets Easily 4" Long Stainless Steel Handle Variety of Diameters Tungsten Cleaning Wire Wire Size Stamped on Handle Easy to Use These jet separator cleaning tools, designed and manufactured by S.I.S., allow you to unclog your jet separators quickly and easily. Each tool has a 4" long stainless steel handle with a tungsten wire cleaning tip. Tungsten is used because it is both rigid and abrasive. These to
  • Rhenium Filament Wire for Finnigan Mass SpecsRhenium Filament Wire for Finnigan Mass Specs
    Rhenium Filament Material for Finnigan Mass Specs Pure high quality rhenium ribbons and wires are available for all manufactures and models of mass spectrometers. The following materials are used on Finnigan mass spectrometers. For a complete list of all the filament materials available, see the filament materials page at the beginning of this catalog. Prices Listed as per FOOT of material. Indicate Purchase Quantity in FEET (1 ft= 0.305m). W3 : Rhenium Wire, Diameter (in)=0.003, Diameter (mm)=0
  • Gold Wire Ring Vacuum Gaskets (Catalog F58)Gold Wire Ring Vacuum Gaskets (Catalog F58)
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