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RW 118 / RW 122 / RW 70 Nickel-Copper Resistance Wire

RW 118 / RW 122 / RW 70 High Strength Hot Cutting Wires

Available in any of the 'profile options'

These hot cutting wires have high strength at elevated temperatures and are used for cutting foam polystyrene (EPS) and or heat sealing woven polypropylene bags.

To achieve the best cut, adjust the temperature and cutting speed. The material type and it's density will influence the cutting speed.

RW 118 Properties
Density 8.18g/cm³ 0.296 lb/in³
Electrical Resistivity at 20°C 118 microhm • cm 710 ohm. Circ. mil/ft
Maximum Operating Temperature 300 °C 572 °F
Melting Point 1370 °C 2500 °F
Coefficient of Expansion 12.7 µm/m °C (20 - 100°C) 7.1 x 10-6 in/in °F (70 - 212°F)
RW 122 Properties
Density 8.28g/cm³ 0.299 lb/in²
Electrical Resistivity at 20°C 122 microhm • cm 734 ohm. Circ. mil/ft
Maximum Operating Temperature 300 °C 572 °F
Melting Point 1430 °C 2600 °F
Coefficient of Expansion 12.6 µm/m °C (20 - 100°C) 7 x 10-6 in/in °F (70 - 212°F)
RW 70 Properties
Density 8.00g/cm³ 0.289 lb/in²
Electrical Resistivity at 20°C 70 microhm • cm 421 ohm. Circ. mil/ft
Maximum Operating Temperature 300 °C 572 °F
Melting Point 1375 °C 2500 °F
Coefficient of Expansion 17.6 µm/m °C (20 - 100°C) 9.8 x 10-6 in/in °F (70 - 212°F)

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