Standard Test Method for Reheat Change of Refractory Brick
Three 9" x 4 1/2" x 2 1/2" or 3" bricks are heated on a specified heating schedule and the percent linear change is reported. At least three 9" bricks per brand/type are suggested by ASTM. For volume change, add $10 per specimen.
|PER TEST OF 3||EA ADD'L SPECIMEN|
|Misc. Products||2000°F or Less||$575||$25|
|Low Duty Fireclay||Schedule A, 2190°F||$615||$25|
|Ladle Brick||Schedule E, 2350°F||$645||$25|
|Fireclay Nozzles||Schedule D, 2460°F||$700||$25|
|High Duty Fireclay||Schedule B, 2550°F||$730||$25|
|Misc. Products||Schedule F, 2730°F||$780||$25|
|Super Duty Fireclay||Schedule C, 2910°F||$900||$35|
|High Alumina||Schedule G, 3000°F||$1100||$35|
|Misc. Products||Schedule H, 3090°F||$1300||$35|
|Misc. Products||Up to 3140°F||$1510||$35|
SIGNIFICANCE AND USE
Refractory brick and shapes of different compositions exhibit unique permanent linear changes after heating or reheating. This test method provides a standard procedure for heating various classes of refractories with appropriate heating schedules.
Linear reheat changes obtained by this test method are suitable for use in research and development, also often used to establish written specifications between producers and consumers.
Care should be exercised in selecting samples that are representative of the product being tested and that the schedule selected is appropriate to the product.
1.1 This test method covers the determination of the permanent linear change of refractory brick when heated under prescribed conditions.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
Note 1 - Test methods incorporating additional provisions pertinent to specific refractory materials are given in the following Test Methods: C179, C210, and C605.
Extracted, with permission, from ASTM C113 Standard Test Method for Reheat Change of Refractory Brick, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the standard may be purchased from ASTM International, phone 610-832-9555, e-mail: firstname.lastname@example.org, website:www.astm.org.
FROM THE BLOG...
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