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ASTM F1312-90(2007)

(Specification)

Standard Specification for Brick, Insulating, High Temperature, Fire Clay

Standard Specification for Brick, Insulating, High Temperature, Fire Clay

ABSTRACT
This specification covers thermal insulating bricks made from fire clay that are used as backup insulation for refractory furnace linings of boiler furnaces. The bricks shall be composed of heat-resistant materials that have been burned or fired to produce the desired density, strength, and structure. Representative bricks shall be tested, and shall conform accordingly to specified values of bulk density, modulus of rupture, and reheat change.
SCOPE
1.1 This specification covers one type of thermal insulating brick for use as backup insulation for refractory furnace linings of boiler furnaces.
1.2 The values stated in inch-pound units are to be regarded as standard. The SI units in parentheses are for information purposes only and may be approximate.

General Information

Status
Historical
Publication Date
30-Apr-2007
ICS
81.080 - Refractories
Technical Committee
F25 - Ships and Marine Technology
Drafting Committee
F25.07 - General Requirements
Current Stage
Ref Project

Relations

Replaces
ASTM F1312-90(2002) - Standard Specification for Brick, Insulating, High Temperature, Fire Clay
Effective Date
01-May-2007
Replaced By
ASTM F1312-90(2013) - Standard Specification for Brick, Insulating, High Temperature, Fire Clay
Effective Date
01-Oct-2013

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ASTM F1312-90(2007) - Standard Specification for Brick, Insulating, High Temperature, Fire ClayASTM F1312-90(2007) - Standard Specification for Brick, Insulating, High Temperature, Fire Clay
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ASTM F1312-90(2007) - Standard Specification for Brick, Insulating, High Temperature, Fire Clay
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F1312 −90(Reapproved2007) An American National Standard
Standard Specification for
Brick, Insulating, High Temperature, Fire Clay
This standard is issued under the fixed designation F1312; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4-Way (Partial) Pallet Skids, Runners, or Pallet Type
Base
1.1 This specification covers one type of thermal insulating
brick for use as backup insulation for refractory furnace linings
3. Ordering Information
of boiler furnaces.
3.1 Orders for material under this specification shall include
1.2 The values stated in inch-pound units are to be regarded
the following information as necessary to describe the material
as standard. The SI units in parentheses are for information
adequately:
purposes only and may be approximate.
3.1.1 ASTM designation and year of issue,
3.1.2 Dimensions required (see 6.1), and
2. Referenced Documents
3.1.3 Optional requirements, if any (see S1 through S3).
2.1 ASTM Standards:
C93 Test Method for Cold Crushing Strength and Modulus
4. Material and Manufacture
of Rupture of Insulating Firebrick (Withdrawn 1992)
4.1 Bricks shall be composed of heat-resistant materials
C134 Test Methods for Size, Dimensional Measurements,
whichhavebeenburnedorfiredtoproducethedesireddensity,
and Bulk Density of Refractory Brick and Insulating
strength, and structure.
Firebrick
C210 TestMethodforReheatChangeofInsulatingFirebrick
5. Physical and Mechanical Properties
2.2 Federal Specifications:
5.1 The average bulk density shall not exceed 45.0 lb/ft
PPP-B-601 Boxes, Wood, Cleated-Plywood
(720 kg/m ) (see 9.2).
PPP-B-621 Boxes, Wood, Nailed and Lock Corner
PPP-B-636 Box, Fireboard
5.2 The modulus of rupture shall average not less than 100
psi (700 kPa) (see 9.3).
2.3 Military Specification:
MIL-L-10547 Liners, Case, and Sheet, Overwrap; Vapor-
5.3 Bricks shall show an average reheat change of not more
proof or Waterproof, Flexible
than 1 % when heated at 2450°F (1343°C) (see 9.4).
2.4 Military Standards:
6. Dimensions and Permissible Variations
MIL-STD-105 Sampling Procedures and Tables for Inspec-
tion by Attributes
6.1 Insulating brick shall be furnished in the dimensions
MIL-STD-129 Marking for Shipment and Storage 1
specified (see 3.1.2). Standard size brick shall be 9 by 4 ⁄2 by
MIL-STD-147 Palletized Unit Load 40 Inch by 48 Inch
1 1
2 ⁄2 in. (229 by 114 by 64 mm), 9 by 4 ⁄2 by 2 in. (229 by 114
1 1
by 51 mm), or 9 by 4 ⁄2 by 1 ⁄4 in. (229 by 114 by 32 mm), as
specified.
This specification is under the jurisdiction of ASTM Committee F25 on Ships
6.2 Standard size brick shall not vary more than 6 ⁄16 in. (2
and Marine Technology and is the direct responsibility of Subcommittee F25.07 on
mm)fromspecifieddimensionsof2in.(51mm)orgreater,nor
General Requirements.
Current edition approved May 1, 2007. Published June 2007. Originally
morethan 6 ⁄32in.(1mm)fromspecifieddimensionslessthan
approved in 1990. Last previous edition approved in 2002 as F1312 - 90(2002).
2 in. (see 9.2).
DOI: 10.1520/F1312-90R07.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.3 For special shapes, no dimension shall vary more than
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
⁄16 in. (2 mm) from the dimensions specified (see 9.2).
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
The last approved version of this historical standard is referenced on 7. Workmanship, Finish, and Appearance
www.astm.org.
7.1 Bricks shall be of homogeneous structure, free from
Available from Standardization Documents, Order Desk, Bldg. 4, Section D,
700 Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS. cracks, laminations, segregations, void defects, or soft centers.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1312−90(2007)
TABLE 1 Instructions for Testing
Specification Reference Requirements Applicable to Results Reported as
Number
Characteristic Determinations Sample Size
Numerically to
Requirement Test Method Individual Unit Lot Average Pass or Fail
A
per Unit
Nearest
Density 5.1 9.2 . . . X 1 . . . 0.1 lb/ft 10
Modulus of rupture 5.2 9.3 . . . X 1 . . . psi 10
Reheat change 5.3 9.4 . . . X 1 . . . 0.1% 3
A
Test reports shall include all values on which average results are based.
All corners and edges shall be sufficiently strong to prevent 10. Inspection
excessive crumbling or chipping when handled or shipped.
10.1 Unless otherwise specified in the contract or purchase
order, the supplier is responsible for the performance of all
8. Sampling
inspection requirements specified herein. Except as otherwise
8.1 For purposes of sampling, an inspection lot for exami-
specified, the supplier may use his own or any other facilities
nation and tests shall consist of all material of the same size
suitable for the performance of the inspection requirements
and shape offered for delivery at one time.
specified herein, unless disapproved by the purchaser. The
8.2 The sample unit for the tests of Section 9 shall be one
purchaser reserves the right to perform any of the inspections
brick.
setforthinthespecificationwheresuchinspectionsaredeemed
8.3 The sample size (the number of sample units) for the
necessary to ensure that supplies and services conform to
tests of Section 9 shall be as specified in Table 1.
prescribed requirements.
9. Test Methods
11. Product Marking
9.1 Testing of the End Item—Theenditemshallbetestedfor
11.1 Bricks shall be marked with the manufacturer’s name
the applicable characteristics as shown on Table 1 from each
or trademark by suitable indentation or stamping.
lot presented for examination for each size and shape of brick.
9.2 Dimensions and Bulk Density—Dimensions and bulk
12. Packaging
density shall be determined in accordance with the test method
specified in Test Methods C134.
12.1 Bricks shall be packed in containers which will ensure
acceptance by common carrier and safe delivery to destination
9.3 Modulus of Rupture—The modulus of rupture shall be
at the lowest applicable rate. Containers shall comply with
determinedinaccordancewiththetestmethodspecifiedinTest
Methods C93. commercial carrier regulations.
9.4 Reheat Change—The reheat change shall be determined
13. Keywords
in accordance with Test Method C210, except that the test
specimens shall be maintained at a temperature of 2550°F
13.1 brick; insulating brick; fire clay
(1343°C) for 24 h.
SUPPLEMENTARY REQUIREMENTS
...

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SCOPE
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1.3.1 Exception—The apparatus used in this standard is only available in SI units.  
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ASTM C604-18(2023)(Test Method)
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4.1 The true specific gravity of a material is the ratio of its true density, determined at a specific temperature, to the true density of water, determined at a specific temperature. Thus, the true specific gravity of a material is a primary property which is related to chemical and mineralogical composition.  
4.2 This test method is particularly useful for hydratable materials that are not suitable for test with Test Method C135.  
4.3 For refractory raw materials and products, the true specific gravity is a useful value for: classification, detecting differences in chemical composition between supposedly like samples, indicating mineralogical phases or phase changes, calculating total porosity when the bulk density is known, and for any other test method that requires this value for the calculation of results.  
4.4 This test method is a primary standard method which is suitable for use in specifications, quality control, and research and development. It can also serve as a referee test method in purchasing contracts or agreements.  
4.5 Fundamental assumptions inherent in this test method are the following:  
4.5.1 The sample is representative of the material in general,  
4.5.2 The total sample has been reduced to the particle size specified,  
4.5.3 No contamination has been introduced during processing of the sample,  
4.5.4 The ignition of the sample has eliminated all free or combined water without inducing sintering or alteration,  
4.5.5 An inert gas (helium) has been used in the test, and  
4.5.6 The test method has been conducted in a meticulous manner.  
4.5.7 Deviation from any of these assumptions negates the usefulness of the results.  
4.6 In interpreting the results of this test method, it must be recognized that the specified sample particle size is significantly finer than specified for Test Method C135. Even this finer particle size for the sample does not preclude the presence of some closed pores, and the amount of residual close...
SCOPE
1.1 This test method covers the determination of the true specific gravity of solid materials, and is particularly useful for materials that easily hydrate which are not suitable for test with Test Method C135. This test method may be used as an alternate for Test Methods C135, C128, and C188 for determining true specific gravity.  
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.2.1 Exception—In 7.3, the equivalent SI unit is expressed in parentheses.  
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