Jacobs Online

Haynes 282

(Bare Resistance Wire)

This is a replacement for Rene Wire.
You won't be able to tell the difference.
SUPER ALLOY -- ULTIMATE WIRE FOR HOT-WIRE CUTTING

Twice as strong as nichrome wire of the same gauge

retains strength at high temperatures

For hobby, home, work, school, lab, industry

We normally ship same day when order is received by 12:00 noon Pacific time.

Free shipping
on all wire only orders in the green section to the USA

(International orders require additional shipping amount plus extra amount
PayPal charges for international orders which can be added
at the bottom of the shipping page.  Contact for exact amount)

The Pkg column below indicates how the wire is wound
OC = Wound as an Open Coil
Sp = Wound on a Spool
See pictures in the left sidebar

27 gauge is the most commonly used for foam cutting

24  gauge for long lengths of foam cutting or where even more

strength is desired than for 27 gauge

INTERNATIONAL Please note:

yellow highlighted items are no longer

available for shipment outside of USA.

LIMIT ONE 5-ft, 10--ft, or 15-ft coil of each gauge
per address. These are intended as test lengths only.
no returns or refunds on those.

Haynes 282 wire is another super alloy material for hot-wire foam cutting and other hot wire applications.  It retains its high strength at much higher temperatures than normal foam cutting temperatures.  Its room temperature tensile strength is double that of Nichrome wire and it stretches very little as it is heated.  Some people are switching from Rene to 282 for industrial foam cutting and like it better.It has an excellent track record of durability and long life in these applications as well as others similar to Rene.

Because this wire retains its strength at very high temperatures, it can be run at higher temperatures for cutting and so cut faster.  Also because of its strength, it can be used in longer lengths without needing to increase the diameter which would be required with nichrome.  This means increased speed and smaller kerfs and so less waste.  The 27 gauge will work for almost any length but if even more strength is needed or for rougher handling you can use 24 gauge.  The 27 gauge is used commercially to cut 4 ft square by 12' long billets of foam and in NC foam cutting machines.

Haynes 282 is one of the alloys in the group called superalloys or high-performance alloys and was developed by Haynes International for use in the aerospace industry. It is commonly used in gas turbine engines where its high temperature strength, creep resistance, fatigue life, phase stability, and oxidation and corrosion resistance makes it an ideal material for the application.  Other examples of superalloys are Hastelloy, Inconel, Waspaloy, other Haynes alloys, Incoloy and others. These alloys are also used in power generation, space vehicles, nuclear reactors, bomb casings, chemical processing vessels and many other uses.

If you are using cutting wire longer than 3 or 4 feet, this wire or Rene is recommended, or if you just want a wire that is stronger and will last longer, then Haynes 282 wire is a good choice..

This wire is tempered unlike nichrome which usually is annealed.  This means that it is stiffer and springs back more than nichrome of the same diameter.

The resistance if Haynes wire is about 10% higher than nichrome wire.  You can use the nichrome wire calculator set to Rene Wire. They have almost the same electrial characteristics.

The Certificate of Conformity for this wire lists the following:

Diameter Tolerance: 0.0137 - 0.0143 inch
Tensile Strength: 1300 - 1600 N/mm²  (190 - 230 ksi)

Wire conforms to the following chemical analysis (%)

Other specifications:

Density: 8.27 g/cm³ (0.3.00 lb/in³⁾
Melting Point: 1300-1375 °C (2370-2510 °F)
Approximate service temperature: °550C (°1020F)
Coefficient of Expansion 20-100 °C:  12.3 µm/m °C (6.7 µin/in °F )
Electrical Resistivity at 20 °C:  131 µΩ-cm (Ω Circ. Mill/ft)
Modulus of Elasticity: 218.0 kN/mm² (31619 ksi)