ASTM A673/A673M-95
(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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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 673/A673M – 95 American Association State Highway
and Transportation Officials
Standard AASHTO No.: T 243
Standard Specification for
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 3.1.3 The absorbed energy (ft·lbf [J]) requirements.
3.1.4 Condition of material: as rolled, stress relieved, nor-
1.1 This specification establishes the procedure for longitu-
malized, normalized and stress relieved, or quenched and
dinal Charpy V-notch testing of structural steel and contains
tempered.
two frequencies of testing. The impact properties of steel can
vary within the same heat and piece, be it as rolled, control
4. Tests
rolled, or heat treated. The purchaser should, therefore, be
4.1 An impact test shall consist of three specimens taken
aware that testing of one plate, bar, or shape does not provide
from a single test coupon or test location, the average of which
assurance all plates, bars, or shapes of the same heat as
shall comply with the specified minimum with not more than
processed will be identical in toughness with the product
one value below the specified minimum, but in no case below
tested. Normalizing or quenching and tempering the product
either two thirds of the specified minimum or 5 ft·lbf [7J],
will reduce the degree of variation.
whichever is greater (see Test Methods and Definitions A 370).
1.2 This specification is intended to supplement specifica-
4.2 The specimen for plates and bars shall be taken adjacent
tions for structural steel when so specified.
to the tension test specimen and the specimen for shapes shall
1.3 This specification does not necessarily apply to all
be taken from the end of a shape at a point one third the
product specifications; therefore, the manufacturer or processor
distance from the outer edge of the flange or leg to the web or
should be consulted for energy absorption levels and minimum
heel of the shape (see Fig. 1 and Fig. 2). For plates produced
testing temperatures that can be expected or supplied.
from coils, three impact tests shall be taken from the product of
1.4 Two frequencies of testing (P and H) are prescribed.
each coil or qualifying coil (see Section 5). One test shall be
1.5 The values stated in either inch-pound units or SI units
taken adjacent to each of the tension tests (see Specification
are to be regarded as standard. Within the text, the SI units are
A 6/A 6M) and a third test coupon shall be obtained immedi-
shown in brackets. The values stated in each system are not
ately after the last plate produced to the qualifying specifica-
exact equivalents; therefore, each system must be used inde-
tion.
pendently of the other. Combining values from the two systems
4.2.1 The longitudinal axis of the specimen shall be parallel
may result in nonconformance with this specification.
to the final direction of rolling of the plate or parallel to the
2. Referenced Documents major axis of the shape.
4.2.2 The center longitudinal axis of the specimen shall be
2.1 ASTM Standards:
located as near as practicable mid-way between the surface and
A 6/A6M Specification for General Requirements for
the center of the material thickness and the length of the notch
Rolled Structural Steel Bars, Plates, Shapes, and Sheet
shall be perpendicular to the rolled surface of the material.
Piling
4.3 The impact energy values obtained on sub-size speci-
A 370 Test Methods and Definitions for Mechanical Testing
mens shall not be less than shown in Table 1, which are
of Steel Products
proportional to energy values required for the full-size speci-
3. Ordering Information
men.
4.4 The test temperature should be specified on the order. At
3.1 The inquiry and order shall indicate the following:
the manufacturer’s option, the actual test temperature may be
3.1.1 The frequency of testing, (P) or (H).
lower than the specified test temperature. This accommodation
3.1.2 The test temperature to be used.
does not change the required impact energy values unless there
has been prior agreement between the purchaser and the
This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
manufacturer to do so. The actual test temperature shall be
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
reported with the test results.
A01.02 on Structural Steel for Bridges, Buildings, Rolling Stock, and Ships.
Current edition approved June 15, 1995. Published August 1995. Originally
published as A 673 – 72. Last previous edition A 673/A 673M – 90b. 5. Frequency of Testing
Annual Book of ASTM Standards, Vol 01.04.
3 5.1 Frequency (H) Heat Testing for Plates, Shapes, and
Annual Book of ASTM Standards, Vol 01.03.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
A 673/A673M
NOTE 1—LT (Longitudinal tensile test) For widths through 24 in. [600 mm], may be taken at any location, A through H.
NOTE 2—TT (Transverse tensile test) For widths over 24 in. [600 ], may be taken at locations B, C, F,or G.
NOTE 3—CIL (Charpy impact longitudinal) May be taken at any location, A through H.
FIG. 1 Plate Test Location
NOTE 1—CIL 5 Charpy impact longitudinal.
NOTE 2—Test coupon for impact specimens may be taken from locations A, B, C,or D as shown laid out at location A.
FIG. 2 Shape Test Location
TABLE 1 Equivalent Absorbed Energy for Various Specimen Sizes
Full Size, 3 4 Size, 2 3 Size, 1 2 Size, 1 3 Size, 1 4 Size,
/ / / / /
10 by 10 mm 10 by 7.5 mm 10 by 6.7 mm 10 by 5 mm 10 by 3.3 mm 10 by 2.5 mm
ft·lbf [J] ft·lbf [J] ft·lbf [J] ft·lbf [J] ft·lbf [J] ft·lbf [J]
40 [54] 30 [41] 27 [37] 20 [27] 13 [18] 10 [14]
35 [48] 26 [35] 23 [31] 18 [24] 12 [16] 9 [12]
30 [41] 22 [30] 20 [27] 15 [20] 10 [14] 8 [11]
25 [34] 19 [26] 17 [23] 12 [16] 8 [11] 6 [8]
20 [27] 15 [20] 13 [18] 10 [14] 7 [10] 5 [7]
16 [22] 12 [16] 11 [15] 8 [11] 5 [7] 4 [5]
15 [20] 11 [15] 10 [14] 8 [11] 5 [7] 4 [5]
13 [18] 10 [14] 9 [12] 6 [8] 4 [5] 3 [4]
12 [16] 9 [12] 8 [11] 6 [8] 4 [5] 3 [4]
10 [14] 8 [11] 7 [10] 5 [7] 3 [4] 2 [3]
7 [10] 5 [7] 5 [7] 4 [5] 2 [3] 2 [3]
Bars—One impact test (a set of three specimens) shall be made subject to the following modifications: When material rolled up
for each 50 tons [45 Mg] of the same type of product subject to 2 in. [50 mm] inclusive in thickness differs ⁄8in. [10 mm] or
to the requirements of this specification produced on the same more in thickness, one impact test shall be made from both the
mill from the same heat of steel. The impact test(s) shall be thickest and thinnest material rolled. When material rolled over
taken from different as-rolled or heat-treated pieces. Impact 2 in. [50 mm] in thickness differs 1 in. [25 mm] or more in
specimens shall be selected from the thickest material rolled thickness, one impact test shall be made from both the thickest
A 673/A673M
and thinnest material rolled that is more than 2 in. [50 mm] in average, or if one specimen is below the greater of 5 ft·lbf [7
thickness. If insufficient pieces of the thickest or thinnest J] or two thirds of the specified minimum, a retest of three
material are produced to permit compliance with the above,
additional specimens shall be made, each of which must have
then testing may proceed to the next nearest thickness avail-
a value equal to or exceeding the specified minimum.
able. When plates
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