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ASTM E382-07

(Test Method)

Standard Test Method for Determination of Crushing Strength of Iron Ore Pellets

Standard Test Method for Determination of Crushing Strength of Iron Ore Pellets

SIGNIFICANCE AND USE
The crushing strength aids the pellet producer in the determination of quality problems associated with the production of pellets.
The crushing strength is often used by the pellet consumer as a quality indicator for performance in the blast furnace.
SCOPE
1.1 This test method describes a method for determining the crushing strength of fired iron ore pellets. Cylindrical agglomerates, briquettes, and reduced pellets are not covered by this test method.
1.2 The values as stated in SI units are to be regarded as the standards. The values in parentheses are given for information only.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
31-May-2007
ICS
73.060.10 - Iron ores
Technical Committee
E01 - Analytical Chemistry for Metals, Ores, and Related Materials
Drafting Committee
E01.02 - Ores, Concentrates, and Related Metallurgical Materials
Current Stage
Ref Project

Relations

Replaces
ASTM E382-02 - Standard Test Method for Determination of Crushing Strength of Iron Ore Pellets
Effective Date
01-Jun-2007
Replaced By
ASTM E382-12 - Standard Test Method for Determination of Crushing Strength of Iron Ore Pellets
Effective Date
01-Jun-2012
Referred By
ASTM E3330-22 - Standard Guide for Contents of Documentation and Statistical Treatments for Reference Materials for Metals, Ores, and Related Materials
Effective Date
01-Jun-2007

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ASTM E382-07 - Standard Test Method for Determination of Crushing Strength of Iron Ore PelletsASTM E382-07 - Standard Test Method for Determination of Crushing Strength of Iron Ore Pellets
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ASTM E382-07 - Standard Test Method for Determination of Crushing Strength of Iron Ore Pellets
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:E382–07
Standard Test Method for
1
Determination of Crushing Strength of Iron Ore Pellets
This standard is issued under the fixed designation E382; 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.
1. Scope 3.2.1 crushing strength, n—average compressive load
needed to break the pellets in the test sample completely.
1.1 This test method describes a method for determining the
crushing strength of fired iron ore pellets. Cylindrical agglom-
4. Summary of Test Method
erates, briquettes, and reduced pellets are not covered by this
4.1 A load is applied on a single pellet at a specified speed
test method.
of the compressive platen until the pellet is broken. This
1.2 The values as stated in SI units are to be regarded as the
procedure is repeated on all pellets of the test sample.
standards. The values in parentheses are given for information
only.
5. Significance and Use
1.3 This standard does not purport to address all of the
5.1 The crushing strength aids the pellet producer in the
safety concerns, if any, associated with its use. It is the
determination of quality problems associated with the produc-
responsibility of the user of this standard to establish appro-
tion of pellets.
priate safety and health practices and determine the applica-
5.2 The crushing strength is often used by the pellet
bility of regulatory limitations prior to use.
consumer as a quality indicator for performance in the blast
2. Referenced Documents furnace.
2
2.1 ASTM Standards:
6. Apparatus
E50 Practices for Apparatus, Reagents, and Safety Consid-
6.1 Loading Unit:
erations for Chemical Analysis of Metals, Ores, and
6.1.1 The loading capacity shall be 1000 kgf or more (1000
Related Materials
kgf = 9.806 kN).
E135 Terminology Relating to Analytical Chemistry for
6.1.2 The compressive platens shall be installed in parallel
Metals, Ores, and Related Materials
planes. The surface of the platens that are in contact with the
E389 Test Method for Particle Size or Screen Analysis at
sample shall be made of surface-hardened steel.
No. 4 (4.75-mm) Sieve and Coarser for Metal-Bearing
6.1.3 A device for setting the speed of the compressive
Ores and Related Materials
platen at 0.25 6 0.08 mm/s over the entire test period shall be
E877 Practice for Sampling and Sample Preparation of Iron
used.
Ores and Related Materials for Determination of Chemical
Composition
NOTE 1—If the platen speed is not constant during the test cycle, results
may differ depending upon the test machine used.
3. Terminology
6.2 Indicating Unit, consists of a load transfer device and a
3.1 Definitions—For definitions of terms used in this test
load indicator.
method, refer to Terminology E135.
6.2.1 Load Transfer Device:
3.2 Descriptions of Terms Specific to this Standard
6.2.1.1 The transfer of the applied load to the load indicator
shall be by a load cell or by a lever.
6.2.1.2 The capacity of the load cell shall be at least 1000
1
kg.
This test method is under the jurisdiction of ASTM Committee E01 on
Analytical Chemistry for Metals, Ores and Related Materials and is the direct 6.2.2 Load Indicator:
responsibility of Subcommittee E01.02 on Ores, Concentrates, and Related Metal-
6.2.2.1 The applied load shall be indicated either by an
lurgical Materials.
electric indicator (recording chart, meter with needle rider, or
Current edition approved June 1, 2007. Published June 2007. Originally
other suitable device) for the load cell type, or by a mechanical
approved in 1968. Last previous edition approved in 2002 as E382 – 02. DOI:
10.1520/E0382-07.
indicator (gage equipped with needle rider or other suitable
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
device) for the lever type.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2.2.2 When using a load cell, the chart recorder response
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. time shall be 1.0 s or less for a full-scale deflection.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E382–07
6.2.2.3 The minimum graduation shall be 1/100 of the full 9.2 Apply the load at a constant rate of 0.25 6 0.08 mm/s
scale. throughout the test period.
6.2.2.4 The testing machine shall be calibrated periodically. 9.3 Record the maximum load at which each test piece
1
6.3 Sieves—Square mesh sieves 12.5 mm ( ⁄2 in.) and 9.5 breaks completely.
3
mm ( ⁄8 in.) are recommended; however, others may be u
...

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