ASTM A673/A673M-02
(Specification)Standard Specification for Sampling Procedure for Impact Testing of Structural Steel
Standard Specification for Sampling Procedure for Impact Testing of Structural Steel
SCOPE
1.1 This specification establishes 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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American Association State Highway
Designation: A 673/A673M – 02 and Transportation Officials
Standard AASHTO No.: T 243
Standard Specification for
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Sampling Procedure for Impact Testing of Structural Steel
This standard is issued under the fixed designation A 673/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 (e) 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 3.1.2 Test temperature (see 4.5 and 4.6),
3.1.3 Minimum average absorbed energy value (see 4.1 and
1.1 This specification establishes the procedure for longitu-
4.6),
dinal Charpy V-notch testing of structural steel and contains
3.1.4 Alternate core location (see 4.3), if applicable, and
two frequencies of testing. The impact properties of steel can
3.1.5 Condition (as-rolled, stress relieved, normalized, nor-
vary within the same heat and piece, be it as rolled, control
malized and stress relieved, or quenched and tempered).
rolled, or heat treated. The purchaser should, therefore, be
aware that testing of one plate, bar, or shape does not provide
4. Tests
assurance all plates, bars, or shapes of the same heat as
4.1 Impact testing shall be in accordance with Test Methods
processed will be identical in toughness with the product
and Definitions A 370. An impact test shall consist of testing
tested. Normalizing or quenching and tempering the product
three specimens taken from a single test coupon or test
will reduce the degree of variation.
location, the average result of which shall be not less than the
1.2 This specification is intended to supplement specifica-
minimum average absorbed energy specified in the purchase
tions for structural steel when so specified.
order, which in no case shall be less than 7 ft·lbf [10 J] for full
1.3 This specification does not necessarily apply to all
size specimens.
product specifications; therefore, the manufacturer or processor
4.2 Except as allowed by 4.3, specimens for plates and bars
should be consulted for energy absorption levels and minimum
shall be taken from a location adjacent to the location specified
testing temperatures that can be expected or supplied.
for the tension test specimen, and specimens for shapes shall be
1.4 Two frequencies of testing (P and H) are prescribed.
taken from a location at an end of the shape at a point one third
1.5 The values stated in either inch-pound units or SI units
the distance from the outer edge of the flange or leg to the web
are to be regarded as standard. Within the text, the SI units are
or heel of the shape (see Fig. 1 and Fig. 2). For plates produced
shown in brackets. The values stated in each system are not
from coils, three impact tests shall be taken from the product of
exact equivalents; therefore, each system must be used inde-
each coil or qualifying coil (see Section 5); one test coupon
pendently of the other. Combining values from the two systems
shall be obtained from a location adjacent to the location
may result in nonconformance with this specification.
specified for each of the two required tension tests (see
2. Referenced Documents Specification A 6/A 6M) and the third test coupon shall be
obtained from a location immediately after the last plate
2.1 ASTM Standards:
produced to the qualifying specification.
A 6/A6M Specification for General Requirements for
4.2.1 The longitudinal axis of each specimen shall be
Rolled Structural Steel Bars, Plates, Shapes, and Sheet
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parallel to the final direction of rolling of the plate or parallel
Piling
to the major axis of the shape.
A 370 Test Methods and Definitions for Mechanical Testing
3
4.2.2 The longitudinal axis of each specimen shall be
of Steel Products
located midway between the surface and the center of the
3. Ordering Information
product thickness, and the length of the notch shall be
perpendicular to the rolled surface of the product.
3.1 The inquiry and order shall indicate the following:
4.3 For Group 3 shapes with a flange thickness equal to or
3.1.1 Frequency of testing, (P) or (H),
1
greater than 1 ⁄2 in. [38.1 mm], Group 4 shapes, and Group 5
shapes, where alternate core location testing is specified in the
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
purchase order, the longitudinal axis of each specimen shall be
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
located midway between the inner flange surface and the center
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock, and Ships.
of the flange thickness at the intersection with the web
Current edition approved Dec
...
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