Precious Metals and Specialty Wire

WPI offers a variety of precious metals and wire. The table below compares the specifications of the various wires. The following hints are offered to help you understand the part number codes and choose the wire you need:

  • Micro coaxial cables (MAXxxxx) are ideal for microelectrode fabrication and construction of similar research tools. The dual shielding eliminates electrical interference caused by radio frequencies (RF), electrostatic and microphonics (e.g., bending and vibration). Available with single or dual (twin) conductors.
  • Thermocouple wire is for tem­per­a­ture mon­i­tor­ing. TCK3050 has a chromel/alumel pair, for use in inert or oxidizing atmosphere at 1500-1800 °F.
  • Teflon-coated stainless steel (type 304) wire (SSTxxxx) is available in 25-ft and 50-ft lengths. The Teflon coating is 4µm thick.
  • Carbon wire (C3005) is a single 30µm fiber of electrochemically activated car­bon. This fiber is especially useful in micro-elec­tro­chem­i­cal experiments.
  • Carbon filament wire (CPVCxxxx) is made of 3,000 microscopic carbon strands in a col­ored PVC jacket. 45.8 ohms/foot.
  • Copper ultra-fine wire (CU7T44G) is made of seven individually insulated 44 AWG (50µm) conductors twisted together. Total diameter with insulation is 200µm. Resistance: 2.9Ω/m for all seven wires together. Dry dielectric strength: 1500V DC.
  • Platinum/iridium wire — uncoated (PTxxxx) and Teflon-coated (PTTxxxx) — is an alloy of 90% platinum and 10% iridium, giving excellent tensile strength and cor­ro­sion resistance. Uncoated pure platinum wire (PTPxxx) is 99.95% pure.
  • Indium wire (IN1003) is 99.99% pure, with a melting point of 156.4°C.
  • Annealed silver wire (AGWxxxx), 99.99% pure, is available in five diameters; three of those sizes are also available with a Teflon coating (AGTxxxx).
  • Tungsten wire (TGWxxxx), available in three diameters, is 99.95% pure.
  • Gold wire (AUWxxxx) is 99.99% pure.
  • Stainless steel wire (SSxxxxx) is type 316.
Order code Metal Coating AWG* Diameter Precut Length
AGT0510 Silver Teflon 36 0.005 in.
(0.125 mm)1
10 ft
(3 m)
AGT0525 Silver Teflon 36 0.005 in.
(0.125 mm)1
25 ft
(7.6 m)
AGT05100 Silver Teflon 36 0.005 in.
(0.125 mm)1
100 ft
(30 m)
AGT1010 Silver Teflon 30 0.010 in.
(0.25 mm)1
10 ft
(3 m)
AGT1025 Silver Teflon 30 0.010 in.
(0.25 mm)1
25 ft
(7.6 m)
AGT10100 Silver Teflon 30 0.010 in.
(0.25 mm)1
100 ft
(30 m)
AGT1510 Silver Teflon 26-27 0.015 in.
(0.38 mm)1
10 ft
(3 m)
AGT1530 Silver Teflon 26-27 0.015 in.
(0.38 mm)1
30 ft
(9.1 m)
AGW0510 Silver 36 0.005 in.
(0.125 mm)
10 ft
(3 m)
AGW0530 Silver 36 0.005 in.
(0.125 mm)
30 ft
(9.1 m)
AGW1010 Silver 30 0.010 in.
(0.25 mm)
10 ft
(3 m)
AGW1030 Silver 30 0.010 in.
(0.25 mm)
30 ft
(9.1 m)
AGW1510 Silver 26-27 0.015 in.
(0.38 mm)
10 ft
(3 m)
AGW1530 Silver 26-27 0.015 in.
(0.38 mm)
30 ft
(9.1 m)
AGW2010 Silver 24 0.020 in.
(0.5 mm)
10 ft
(3 m)
AGW2030 Silver 24 0.020 in.
(0.5 mm)
30 ft
(9.1 m)
AGW4010 Silver 18 0.040 in.
(1.0 mm)
10 ft
(3 m)
AUW0170 Gold 50 0.001 in.
(0.025 mm)
70 ft
(21 m)
AUW201 Gold 24 0.020 in.
(0.5 mm)
1 ft
(30 cm)
C3005 Carbon 49 0.0012 in.
(30 µm)
5 ft
(1.5 m)
CPVC4050Y Carbon (46Ω/ft) PVC (yellow) 18 0.040 in.
(1.0 mm)
50 ft
(15.2 m)
CPVC4050G Carbon (46Ω/ft) PVC (green) 18 0.040 in.
(1.0 mm)
50 ft
(15.2 m)
CPVC4050R Carbon (46Ω/ft) PVC (red) 18 0.040 in.
(1.0 mm)
50 ft
(15.2 m)
CPVC4050W Carbon (46Ω/ft) PVC (white) 18 0.040 in.
(1.0 mm)
50 ft
(15.2 m)
CU7T44G Copper Alloy Nylon/Polyurethane 30 0.010 in.
(0.20 mm)
16.5 ft
(5 m)
IN1003 Indium 30 0.01 in.
(0.25 mm)
3 ft
(91 cm)
PT1002 Platinum / Iridium 30 0.010 in.
(0.25 mm)
2 ft
(51 cm)
PT0402 Platinum / Iridium 38 0.004 in.
(0.102 mm)
2 ft
(51 cm)
PT0203 Platinum / Iridium 44 0.002 in.
(0.051 mm)
3 ft
(91 cm)
PT0110 Platinum / Iridium 50 0.001 in.
(0.025 mm)
10 ft
(3 m)
PTP101 Platinum 30 0.010 in.
(0.25 mm)
1 ft
(30 cm)
PTP201 Platinum 24 0.020 in.
(0.5 mm)
1 ft
(30 cm)
PTP401 Platinum 18 0.039 in.
(1.0 mm)
1 ft
(30 cm)
PTP406 Platinum 18 0.039 in.
(1.0 mm)
0.5 ft
(15.2 cm)
PTT0502 Platinum / Iridium Teflon 36 0.005 in.
(0.125 mm)1
2 ft
(51 cm)
PTT0402 Platinum / Iridium Teflon 38 0.004 in.
(0.102 mm)1
2 ft
(51 cm)
PTT0203 Platinum / Iridium Teflon 44 0.002 in.
(0.051 mm)1
3 ft
(91 cm)
PTT0110 Platinum / Iridium Teflon 50 0.001 in.
(0.025 mm)1
10 ft
(3 m)
SS31614 Stainless Steel 27 0.014 in.
(0.36 mm)
30 ft
(9.1 m)
SST30407-25 Stainless Steel Teflon 33 0.007 in.
(0.18 mm)3
25 ft
(7.6 m)
SST30407-50 Stainless Steel Teflon 33 0.007 in. (0.18 mm)3 50 ft
(15.2 m)
TCK3050 Thermocouple
(Chromel + Alumel)
Glass braid 30   50 ft
(15.2 m)
TGW0325 Tungsten 40 0.003 in.
(0.075 mm)
25 ft
(7.6 m)
TGW0515 Tungsten 36 0.005 in.
(0.125 mm)
15 ft
(4.6 m)
TGW1510 Tungsten 26-27 0.015 in.
(0.38 mm)
10 ft
(3 m)
MAX3820 Tinned Cu Alloy Coaxial   0.0173 in.
(0.44 mm)
20 ft
(6 m)4
MAX4020 Tinned Cu Alloy Twin Coaxial   0.0158x0.024 in.
(0.4x0.61mm)
20 ft
(6 m)5

 

*Brown & Sharpe

1 Plus 0.002 in. for Teflon coating

3 Teflon adds 0.00015 in. (4 μm) to diameter

4 Impedance: 50 ohm; capacitance: 95 pF/m; resistance: 5 ohm/m

5 Impedance: 100 ohm; capacitance: 54 pF/m; resistance: 1.9 ohm/m

See Selection