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Orton Pyrometric Bars (Set of 50)

Orton Pyrometric Bars (Set of 50)

Manufacturer: Orton
Bin Number: W-I1
Axner Number: FS129
Weight: 0 lbs., 3.20000 oz.

Axner Price: $11.70

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Orton Pyrometric Bars*
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Quantity Discounts

5 to 9$11.00
10 to 19$10.42
20 to 49$9.72
50 or more$9.01
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Product Details

Designed especially for use with a Kiln-Sitter, their uniform shape makes consistent placement easy. In boxes of 50. Each pyrometric bar is approximately 1" long.
After being placed in a Kiln-Sitter - when the selected Bar melts, it activates a trigger which turns the kiln off. The use of a kiln-sitter does not eliminate the use of large cones as they should be used as "witness" cones to determine temperature variations throughout the kiln and the accuracy of the kiln-sitter.

Orton pyrometric cones [and bars] have been the standard of the ceramic industry since 1896. The are elongated pyramid shapes or bars made of clay and various fluxes. Each cone number will melt (bend) at a known temperature, when heated at the rate per hour as indicated on the temperature equivalent chart linked below. Cone numbers can be confusing for the beginner. For example: Cone 06 is a lower temperature than Cone 6. Generally Cone 022 through Cone 017 are used for China Paints, Lusters, Metallics and Decals, Cone 07 through 01 for Bisque and Low Fire Glazes, and Cone 1 through 10 for Porcelain and Stoneware. Refer to the charts linked below for proper selection.

Using Orton Pyrometric Cones:
[PDF download]: Download Orton Cone Equivalent Temperatures – °F
[PDF download]: Download Orton Cone Equivalent Temperatures – °C

[PDF download]: Download Orton Cone Chart

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