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All Categories > Resistance Wire > JELLIFF Alloy K and K-A1 > Item # W0K200015  
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Item # W0K200015, JELLIFF Alloy K and K-A1 Electrical Resistance Alloy

These heating alloys, for operating temperatures up to 1200°C (2200°F), are highly resistant to oxidation and are relatively unaffected by sulfur compounds. ALLOY K is excellent for domestic appliances such as ranges and irons, and for industrial furnaces and ovens, ceramic kilns, and other applications where the heating elements can be supported.

Bare wire will be provided unless other tolerances are required.

This is sold by the pound, although some other companies sell it by length. "Call for custom products."


Wire Type

Alloy K-20


46 gauge

Ohms per Foot


Nominal Composition

15.5 Cr 5.5AI Bal Fe

Resistivity at 25ºC

135 µcm

Temperature Coefficient -55ºC to +150ºC

± 0.00002

Coefficient of Linear Expansion

0.000013 ºC

Approx. Melting Point

1530 ºC

Max. Working Temperature

1000 ºC

Min. Tensile Strength

100000 psi

Max. Tensile Strength

200000 psi

Specific Gravity


Net Weight

0.03 to 0.25 lbs

Nominal Capacity

1 lbs

Flange Diameter

2 1/2 in

Barrel Diameter

1 1/2 in



Additional Options

Bare Wire (B)
Enamel Coat (E)

Premium (P)


Resistance Wire - Physical Properties
(JPG, 101KB)