ASTM A673/A673M-07
(Specification)Standard Specification for Sampling Procedure for Impact Testing of Structural Steel
Standard Specification for Sampling Procedure for Impact Testing of Structural Steel
ABSTRACT
This test method deals with the standard sampling procedure for impact testing of structural steel. Covered are the procedures for longitudinal Charpy V-notch testing, which contain two testing frequencies. The two frequencies for testing (H and P), frequency (H) heat testing, and frequency (P) piece testing are discussed and presented in details.
SCOPE
1.1 This specification covers the procedure for longitudinal Charpy V-notch testing of structural steel and contains two frequencies of testing. The impact properties of steel can vary within the same heat and piece, be it as rolled, control rolled, or heat treated. The purchaser should, therefore, be aware that testing of one plate, bar, or shape does not provide assurance all plates, bars, or shapes of the same heat as processed will be identical in toughness with the product tested. Normalizing or quenching and tempering the product will reduce the degree of variation.
1.2 This specification is intended to supplement specifications for structural steel when so specified.
1.3 This specification does not necessarily apply to all product specifications; therefore, the manufacturer or processor should be consulted for energy absorption levels and minimum testing temperatures that can be expected or supplied.
1.4 Two frequencies of testing (P and H) are prescribed.
1.5 The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.
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Standards Content (Sample)
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American Association State Highway
Designation: A673/A673M – 07 and Transportation Officials
Standard AASHTO No.: T 243
Standard Specification for
1
Sampling Procedure for Impact Testing of Structural Steel
This standard is issued under the fixed designationA673/A673M; 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* A370 Test Methods and Definitions for Mechanical Testing
of Steel Products
1.1 This specification covers the procedure for longitudinal
Charpy V-notch testing of structural steel and contains two
3. Ordering Information
frequencies of testing. The impact properties of steel can vary
3.1 The inquiry and order shall indicate the following:
within the same heat and piece, be it as rolled, control rolled,
3.1.1 Frequency of testing, (P) or (H),
or heat treated. The purchaser should, therefore, be aware that
3.1.2 Test temperature (see 4.5 and 4.6),
testing of one plate, bar, or shape does not provide assurance
3.1.3 Minimum average absorbed energy value (see 4.1 and
all plates, bars, or shapes of the same heat as processed will be
4.6),
identical in toughness with the product tested. Normalizing or
3.1.4 Transverse impact test orientation for plate widths
quenching and tempering the product will reduce the degree of
over 24 in. [600 mm], if desired (see 4.2.2),
variation.
3.1.5 Alternate core location (see 4.3), if applicable, and
1.2 This specification is intended to supplement specifica-
3.1.6 Condition (as-rolled, stress relieved, normalized, nor-
tions for structural steel when so specified.
malized and stress relieved, or quenched and tempered).
1.3 This specification does not necessarily apply to all
productspecifications;therefore,themanufacturerorprocessor
4. Tests
should be consulted for energy absorption levels and minimum
4.1 Impact testing shall be in accordance with Test Methods
testing temperatures that can be expected or supplied.
and Definitions A370. An impact test shall consist of testing
1.4 Two frequencies of testing (P and H) are prescribed.
three specimens taken from a single test coupon or test
1.5 The values stated in either inch-pound units or SI units
location, the average result of which shall be not less than the
are to be regarded as standard. Within the text, the SI units are
minimum average absorbed energy specified in the purchase
shown in brackets. The values stated in each system are not
order, which in no case shall be less than 7 ft·lbf [10 J] for full
exact equivalents; therefore, each system must be used inde-
size specimens.
pendentlyoftheother.Combiningvaluesfromthetwosystems
4.2 Except as allowed by 4.3, specimens for plates and bars
may result in nonconformance with this specification.
shall be taken from a location adjacent to the location specified
2. Referenced Documents forthetensiontestspecimen,andspecimensforshapesshallbe
2 taken from a location at an end of the shape at a point one third
2.1 ASTM Standards:
the distance from the outer edge of the flange or leg to the web
A6/A6M SpecificationforGeneralRequirementsforRolled
or heel of the shape (see Fig. 1 and Fig. 2). For plates produced
Structural Steel Bars, Plates, Shapes, and Sheet Piling
from coils, three impact tests shall be taken from the product of
each coil or qualifying coil (see Section 5); one test coupon
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
shall be obtained from a location adjacent to the location
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
specified for each of the two required tension tests (see
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.
Specification A6/A6M) and the third test coupon shall be
Current edition approved March 1, 2007. Published March 2007. Originally
obtained from a location immediately after the last plate
approved in 1972. Last previous edition approved in 2005 as A673/A673M – 05a.
DOI: 10.1520/A0673_A0673M-07.
produced to the qualifying specification.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.2.1 Except as allowed by 4.2.2, the longitudinal axis of
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
each specimen shall be parallel to the final direction of rolling
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. of the plate or parallel to the major axis of the shape.
*ASummary of Changes section appears at the end of this standard.
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