ASTM A673/A673M-07(2012)
(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)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:A673/A673M −07 (Reapproved 2012) American Association State Highway
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 U.S. Department of Defense.
1. Scope 3. Ordering Information
1.1 This specification covers the procedure for longitudinal 3.1 The inquiry and order shall indicate the following:
Charpy V-notch testing of structural steel and contains two 3.1.1 Frequency of testing, (P) or (H),
frequencies of testing. The impact properties of steel can vary 3.1.2 Test temperature (see 4.5 and 4.6),
within the same heat and piece, be it as rolled, control rolled, 3.1.3 Minimum average absorbed energy value (see 4.1 and
or heat treated. The purchaser should, therefore, be aware that 4.6),
testing of one plate, bar, or shape does not provide assurance 3.1.4 Transverse impact test orientation for plate widths
all plates, bars, or shapes of the same heat as processed will be over 24 in. [600 mm], if desired (see 4.2.2),
identical in toughness with the product tested. Normalizing or 3.1.5 Alternate core location (see 4.3), if applicable, and
quenching and tempering the product will reduce the degree of 3.1.6 Condition (as-rolled, stress relieved, normalized, nor-
variation. malized and stress relieved, or quenched and tempered).
1.2 This specification is intended to supplement specifica-
4. Tests
tions for structural steel when so specified.
4.1 Impact testing shall be in accordance with Test Methods
1.3 This specification does not necessarily apply to all
and Definitions A370. An impact test shall consist of testing
productspecifications;therefore,themanufacturerorprocessor
three specimens taken from a single test coupon or test
should be consulted for energy absorption levels and minimum
location, the average result of which shall be not less than the
testing temperatures that can be expected or supplied.
minimum average absorbed energy specified in the purchase
1.4 Two frequencies of testing (P and H) are prescribed. order, which in no case shall be less than 7 ft·lbf [10 J] for full
size specimens.
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 4.2 Except as allowed by 4.3, specimens for plates and bars
shown in brackets. The values stated in each system are not shall be taken from a location adjacent to the location specified
exact equivalents; therefore, each system must be used inde- forthetensiontestspecimen,andspecimensforshapesshallbe
pendentlyoftheother.Combiningvaluesfromthetwosystems taken from a location at an end of the shape at a point one third
may result in nonconformance with this specification. the distance from the outer edge of the flange or leg to the web
or heel of the shape (see Fig. 1 and Fig. 2). For plates produced
2. Referenced Documents
from coils, three impact tests shall be taken from the product of
2
2.1 ASTM Standards:
each coil or qualifying coil (see Section 5); one test coupon
A6/A6M Specification for General Requirements for Rolled
shall be obtained from a location adjacent to the location
Structural Steel Bars, Plates, Shapes, and Sheet Piling
specified for each of the two required tension tests (see
A370 Test Methods and Definitions for Mechanical Testing
Specification A6/A6M) and the third test coupon shall be
of Steel Products
obtained from a location immediately after the last plate
produced to the qualifying specification.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
4.2.1 Except as allowed by 4.2.2, the longitudinal axis of
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
each specimen shall be parallel to the final direction of rolling
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock and Ships.
of the plate or parallel to the major axis of the shape.
Current edition approved March 1, 2012. Published April 2012. Originally
4.2.2 If specified in the purchase order, for plate widths over
approved in 1972. Last previous edition approved in 2007 as A673/A673M – 07.
DOI: 10.1520/A0673_A0673M-07R12.
24 in. [600 mm], the longitudinal axis of each specimen shall
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
be transverse to the final direction of rolling of the plate.
contact ASTM Customer Service at service@astm.org. For Annual Bo
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