ASTM-E8 2011

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E8/E8M-11 Standard Test Methods for Tension Testing of Metallic Materials

Published By	Publication Date	Number of Pages
ASTM	2011	11

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Categories: 77.040.10 - Mechanical testing of metals, ASTM

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Description

ASTM E8/E8M-11

Historical Standard: Standard Test Methods for Tension Testing of Metallic Materials

ASTM E8/E8M

Scope

1.1 These test methods cover the tension testing of metallic materials in any form at room temperature, specifically, the methods of determination of yield strength, yield point elongation, tensile strength, elongation, and reduction of area.

1.2 The gage lengths for most round specimens are required to be 4D for E8 and 5D for E8M. The gage length is the most significant difference between E8 and E8M Test Specimens Test specimens made from powder metallurgy (P/M) materials are exempt from this requirement by industry-wide agreement to keep the pressing of the material to a specific projected area and density.

1.3 Exceptions to the provisions of these test methods may need to be made in individual specifications or test methods for a particular material. For examples, see Test Methods and Definitions A370 and Test Methods B557, and B557M.

1.4 Room temperature shall be considered to be 10 to 38°C [50 to 100°F] unless otherwise specified.

1.5 The values stated in SI units are to be regarded as separate from inch/pound units. 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 non-conformance with the standard.

1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

accuracy; bending stress; discontinuous yielding; drop-of-the-beam; eccentric force application; elastic extension; elongation; extension-under-load; extensometer; force; free-running crosshead speed; gage length; halt-of-the force; percent elongation; plastic extension; preload; rate of stressing; rate of straining; reduced section; reduction of area; sensitivity; strain; stress; taring; tensile strength; tension testing; yield point elongation; yield strength; Structural steel (SS); Structural steel (SS) plate; Taring; Tensile properties/testing–metallic materials; Yield strength and yield point; Alloy steel plate; Area reduction; Bending stress; Carbon steel; Carbon steel plate; Carbon steel wire; Castings; Cast iron (testing); Copper alloy castings–specifications; Discontinuous yielding; Drop-of-the-beam; Ductility–metals/alloys; Eccentric force application; Elastic extension; Elongation–metallic materials; Extension-under-load; Extensometers; Free-running crosshead speed; Halt-of-the-force; Iron; Metal electrical conductors; Percent elongation; Plastic extension; Plate materials (general); Quality control (QC)–metals; Rate of stressing/straining; Round specimens; Sheet materials (general); Sheet metal; Steel; Steel pipe; Steel sheet/strip; Steel tube; Steel wire rod; Strength; Stress–metallic materials

ICS Code

ICS Number Code 77.040.10 (Mechanical testing of metals)

DOI: 10.1520/E0008_E0008M-11

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Significance and Use Apparatus
3	FIG. 1
4	Test Specimens FIG. 2 FIG. 3 FIG. 4 FIG. 5
5	FIG. 6
6	FIG. 7
7	FIG. 8
8	FIG. 9
9	FIG. 10 FIG. 11 FIG. 12
10	FIG. 13 FIG. 14
11	Procedures FIG. 15
12	TABLE 1
13	FIG. 16
14	FIG. 17 FIG. 18
15	FIG. 19 FIG. 20
16	FIG. 21
17	FIG. 22 FIG. 23 FIG. 24
18	FIG. 25 FIG. 26 FIG. 27
20	Report Precision and Bias
21	Keywords X1. FACTORS AFFECTING TENSION TEST RESULTS X1.1 X1.2 X1.3 X1.4 X1.5
22	X1.6 TABLE X1.1 TABLE X1.2
23	X2. MEASUREMENT OF SPECIMEN DIMENSIONS X2.1 X2.2 X2.3 X2.4 TABLE X1.3 TABLE X1.4 TABLE X1.5 TABLE X1.6
24	X2.5 X2.6 X2.7 X2.8 X2.9 X2.10 X3. SUGGESTED ACCREDITATION CRITERIA FOR LABORATORIES PERFORMING TENSILE TESTS X3.1 Scope X3.2 Preparation X3.3 Test Equipment
25	X3.4 Procedures X3.5 Retention X3.6 Environment X3.7 Controls
26	X4. ADDITIONAL INFORMATION ON SPEED OF TESTING AND EXAMPLES X4.1 X4.2

Additional information

Standard Title	E8/E8M-11 Standard Test Methods for Tension Testing of Metallic Materials
Published Code	ASTM
Publication Date	2011
Pages Count	11
ICS Codes	77.040.10 - Mechanical testing of metals