ASTM A770/A770M-86(2001)

Standard Specification for Through-Thickness Tension Testing of Steel Plates for Special Applications

SCOPE
1.1 This specification covers the procedures and acceptance standards for the determination of reduction of area using a tension test specimen whose axis is perpendicular to the rolled surfaces of steel plates 1 in. [25 mm] and greater in thickness. The principal purpose of the testing is to provide a measure of the resistance of a steel plate to lamellar tearing. (See Appendix X1.)  
1.2 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 the specification.  
1.3 This specification is expressed in both inch-pound and SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.

General Information

• Status: Historical
• Publication Date: 31-Dec-2000
• ICS: 77.040.10 - Mechanical testing of metals
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.11 - Steel Plates for Boilers and Pressure Vessels

Relations

• Replaces: ASTM A770/A770M-86(1996) - Standard Specification for Through-Thickness Tension Testing of Steel Plates for Special Applications
• Effective Date: 01-Jan-2001
• Replaced By: ASTM A770/A770M-03 - Standard Specification for Through-Thickness Tension Testing of Steel Plates for Special Applications
• Effective Date: 10-May-2003
• Referred By: ASTM A1066/A1066M-22 - Standard Specification for High-Strength Low-Alloy Structural Steel Plate Produced by Thermo-Mechanical Controlled Process (TMCP)
• Effective Date: 01-Jan-2001
• Referred By: ASTM A1077/A1077M-21 - Standard Specification for Structural Steel with Improved Yield Strength at High Temperature for Use in Buildings
• Effective Date: 01-Jan-2001
• Referred By: ASTM A1043/A1043M-18 - Standard Specification for Structural Steel with Low Yield to Tensile Ratio for Use in Buildings
• Effective Date: 01-Jan-2001
• Referred By: ASTM A20/A20M-20 - Standard Specification for General Requirements for Steel Plates for Pressure Vessels
• Effective Date: 01-Jan-2001

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 770/A770M – 86 (Reapproved 2001)
Standard Specification for
Through-Thickness Tension Testing of Steel Plates for
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Special Applications
This standard is issued under the fixed designation A 770/A770M; 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 4.1.1 Two tests shall be required from each plate-as-rolled,
2 except for plates subjected to heat treatment by quenching and
1.1 This specification covers the procedures and accep-
tempering. Two tests shall be required from each quenched-
tance standards for the determination of reduction of area using
and-tempered plate. The tests shall be representative of the
a tension test specimen whose axis is perpendicular to the
plate in its final condition.
rolled surfaces of steel plates 1 in. [25 mm] and greater in
4.1.2 When plates are furnished by the manufacturer in an
thickness. The principal purpose of the testing is to provide a
unheat-treated condition and qualified by heat-treated speci-
measure of the resistance of a steel plate to lamellar tearing.
mens (including normalized, normalized and tempered, and
(See Appendix X1.)
quenched and tempered), two tests shall be required from each
1.2 The values stated in either inch-pound units or SI units
plate-as-rolled.
are to be regarded as standard. Within the text, the SI units are
shown in brackets. The values stated in each system are not
NOTE 1—The term “plate-as-rolled’’ refers to the unit plate rolled from
exact equivalents; therefore, each system must be used inde-
a slab or directly from an ingot. It does not refer to the condition of the
plate.
pendently of the other. Combining values from the two systems
may result in nonconformance with the specification.
4.2 Location of Test Coupons—Take one test coupon at each
1.3 This specification is expressed in both inch-pound and
end of each plate as defined in 4.1. Take the test coupons from
SI units. However, unless the order specifies the applicable
the center of the plate width.
“M” specification designation (SI units), the material shall be
4.3 Orientation of Test Specimens—The longitudinal axis of
furnished to inch-pound units.
the reduced section of the test specimens shall be perpendicular
to the rolled surface of the plate.
2. Referenced Documents
4.4 Preparation of Test Specimens:
2.1 ASTM Standards:
4.4.1 Welded Prolongations—When required, join welded
A 370 Test Methods and Definitions for Mechanical Testing
prolongations to the surface(s) of the plate being tested. The
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of Steel Products
joining method used shall be one which results in a minimal
heat-affected zone in the portion of the plate to be tested.
3. Ordering Information
Shielded metal arc, friction, stud, or electron-beam welding
3.1 The inquiry and order shall include the following, if
methods have proven to be suitable.
required:
4.4.2 Types of Test Specimens:
3.1.1 Supplementary requirements that are available to meet
4.4.2.1 Three types of standard round tension test specimens
end use requirements (see S1 through S5).
are shown in Fig. 1 and Table 1. For Types 1 and 2 specimens,
3.1.2 Special requirements agreed upon between the manu-
locate the center of the length of the reduced section at the
facturer and the purchaser.
approximate mid-point of the plate thickness. For Type 3
specimens, locate the weld fusion line of one plate surface
4. Tension Tests
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within ⁄4 in. [6 mm] of one end of the reduced section.
4.1 Number of Tests:
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4.4.2.2 For plates from 1 in. [25 mm] to 1 ⁄4 in. [32 mm]
inclusive in thickness, use either the 0.350-in. [8.75-mm] Type
1 specimen or the 0.500-in. [12.5-mm] Type 2 specimen.
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This specification is under the jurisdiction of ASTM Committee A-1 on Steel,
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4.4.2.3 For plates over 1 ⁄4 in. to 2 in. [50 mm] inclusive in
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
A01.11 on Steel for Boilers and Pressure Vessels.
thickness, use the 0.500-in. [12.5-mm] Type 2 specimen.
Current edition approved Feb. 28, 1986. Published April 1986. Originally
4.4.2.4 For plates greater than 2 in. [50 mm] in thickness,
published as A 770 – 80. Last previous edition A 770 – 82.
2 use the Type 3 specimen.
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
cation SA-770/SA-770M in Section II of that Code.
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Annual Book of ASTM Standards, Vol 01.03.
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