Astm Standard E8
ASTM E8 Metal Tensile Testing. ASTM E8 describes tensile testing of metals such as steel or metal alloys. This test determines important mechanical properties such as yield strength, ultimate tensile strength, elongation, and reduction of area. Elongation is measured over a length of four times the diameter when following E8 or five times the diameter when following E8M unless otherwise stated in the productspecification.Fig.11showsasuitableformofplug,the location of the plugs in the specimen, and the location of the specimen in the grips of the testing machine. Description of ASTM-E8/E8M 2016 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. ASTM E8 – Tensile Testing of Metals. In addition to mechanical testing capability, for tests such as ASTM E8 and many other ASTM methods, Touchstone can conduct complete metallurgical and/or failure analysis using its laboratories for light microscopy, scanning electron microscopy (SEM),.
Note 4-Room temperature shall be considered to be 50 to 100F unless otherwise specified. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use.
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. Footnote * - A Summary of Changes section appears at the end of this standard.
Figure 1 of this document shows the proper dimensions for flat specimens. Figure 1: Specimen 1 Specimen 2 Specimen 3 Specimen 4 Specimen 5 Full Size Sub Sized ASME API API inches inches inches inches inches G-Gage Length 2.00 ± 0.005 1.00 ±.003 2.00 ± 0.005 2.00 ± 0.005 2.00 ± 0.005 W-Width.500 ± 0.010.250 ±.005.750 ±.031 1.00 ±.062 1.50 ±.125 T-Thickness R-Radius of Fillet, min 0.500 0.250 1.00 1.00 1.00 A-Length of reduced section, min 2.25 1.25 2.25 2.25 2.25 B-Length of Grip Section, min 3.00 1.25 3.0 3.0 3.0 C-Width of Grip Section, approx. 0.75 0.375 1.0 1.5 2 • Round Specimens - CMS uses the standard dimensions given in Figure 2 of this document. These dimensions are determined by size of material submitted.
Cloudberry backup serial numbers. This information may be helpful in comparisons of materials, in the development of new alloys, for quality control, to support structural design, and acceptance testing for commercial shipments. Grip and face selection are very important to obtain accurate results. Specimen alignment is key to avoid side loading or bending moments.
Machining: Tensile Test Specimens • Plate, Sheet, And Round Specimens: • Plate Specimens - This specimen is used for testing metallic materials in the form of plate, shapes, and flat material having a nominal thickness of 3/16 inch or over. These specimens will be cut with the band saw or horizontal saw, depending on thickness, to approximate size. The finished dimensions will be attained by using belt sander for proper size. Care must be taken to avoid overheating during sanding. Figure 1 of this document shows the proper dimensions for flat specimens. • Sheet Specimens – This specimen is used for testing metallic materials in the form of sheet, plate, flat wire, strip, band, hoop, rectangles, and shapes ranging in nominal thickness from.005 to 5/8 inch.
• Use ink and a scribe or punch to place gage marks on the test specimen at the appropriate gage length. The distance between the gage marks after the specimen is broken is used to determine the percent elongation at break. Note: To accurately compare elongation values between tests, the gage lengths must be the same. • Zero the testing machine without the specimen inserted in the grips.
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. *A Summary of Changes section appears at the end of this standard.
To find the solution that is right for you. ASTM E8 Test Procedure Step 1: Measure and document the specimen dimensions to determine the smallest point’s cross-sectional area.
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.
The largest size bar possible should be machined for testing. Round bars should be machined using lathes. The bars should be machined to size using feeds and speeds best dictated by experience with the materials and conditions. These dimensions are called out by ASTM-E-8.
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DIMENSIONS (INCHES) Type G D R A 1-160 0.640 ± 0.005 0.160 ± 0.003 0.250 0.750 1-250 1.000 ± 0.005 0.250 ±0.005 0.250 1.250 1-500 2.000 ± 0.005 0.500 ±0.010 0.250 2.250 2-160 0.640 ± 0.005 0.160 ± 0.003 0.250 0.750 2-250 1.000 ± 0.005 0.250 ± 0.005 0.250 1.250 2-500 2.000 ± 0.005 0.500 ± 0.010 0.250 2.250.
NOTE 2 - Gage lengths in these test methods are required to be 4D for most round 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. NOTE 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 A 370 and Test Methods B 557. NOTE 4 - Room temperature shall be considered to be 50 to 100°F unless otherwise specified.
In addition, the test rate is to remain constant through yield but can then be increased when determining ultimate tensile strength and elongation at break. See the ASTM E8 specification for more details.
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. *A Summary of Changes section appears at the end of this standard.
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(Footnote *) 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. NOTE 1 - A complete metric companion to Test Methods E 8 has been developed, therefore, no metric equivalents are shown in these test methods. Committee E28 was granted an exception in 1997 by the Committee on Standards to maintain E8 and E8M as separate companion standards rather than combining standards as recommended by the Form and Style Manual.
ASTM E8 Metal Tensile Testing ASTM E8 describes tensile testing of metals such as steel or metal alloys. This test determines important mechanical properties such as yield strength, ultimate tensile strength, elongation, and reduction of area. E8 tensile tests determine the ductility and strength of various metals when the materials undergo uniaxial tensile stresses. Such information is important for alloy development, design, quality control, and comparison of different sets of metals. An electro-mechanical or hydraulic universal testing machine equipped with the appropriate specimen grips, an extensometer and software capable of strain rate control and recording stress – strain data is necessary to conduct this test.
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.
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. Room temperature shall be considered to be 10 to 38°C [50 to 100°F] unless otherwise specified. The values stated in SI units are to be regarded as separate from inch/pound units.
If you need to conduct tensile tests according to ASTM E8, please read the entire specification from the relevant ASTM publication. ASTM E8 Metal Tensile Testing • Measure and record the specimen dimensions necessary to determine the cross sectional area at its smallest point. The original cross sectional area is used for all engineering stress calculations.
Touchstone Engineers have performed both standard and customized ASTM E8 testing. In addition to mechanical testing capability, for tests such as ASTM E8 and many other ASTM methods, Touchstone can conduct complete metallurgical and/or failure analysis using its laboratories for light microscopy, scanning electron microscopy (SEM), and metallography. Please email or call (304) 547-5800 for information regarding test procedures, results, specimen information, pricing or any other ASTM E8 questions you may have. Reference: ASTM E8 – Standard Test Method for Tension Testing of Metallic Materials.
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Scope: 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. The gauge lengths for most round specimens are required to be 4D for E8 and 5D for E8M. The gauge 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 industrywide agreement to keep the pressing of the material to a specific projected area and density. 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. Room temperature shall be considered to be 10 to 38째C [50 to 100째F] unless otherwise specified.
• Run the test until specimen failure or fracture. Remove the broken sample from the machine and fit the fractured ends together. Measure the distance between the gage marks to the nearest 0.05 millimeters.
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.
Touchstone’s extensive experience in composites testing, which are more sensitive to alignment, ensures control of this critical parameter in testing metallic materials. This is particularly important for R&D projects, where a reference standard or specification may not be available, and improper alignment could yield results that are incorrect but unknown.
The original cross-sectional area is used for stress calculations. Step 2: If not using an extensometer, place gage marks on the test samples at the appropriate gage length. The distance between the gage marks after the specimen is broken is used to determine the percent elongation at the breaking point. The gage lengths need to be the same.
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. The gauge lengths for most round specimens are required to be 4D for E8 and 5D for E8M. The gauge 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 industrywide agreement to keep the pressing of the material to a specific projected area and density.
Step 3: Zero the test machine. Step 4: Install the specimen into the grips. If using an extensometer, install the extensometer on the sample and begin loading the specimen. Step 5: Run the test until the sample either fails or fractures. Step 6: Remove the broken sample. If using an extensometer the software will automatically calculate the elongation, yield and modulus data.
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Astm Standard E837
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ASTM E8 Tensile tests provide information on the strength and ductility of materials under uniaxial tensile stresses. From fragile wires to structural steel, from lead and copper to aluminum, steel and titanium alloys, metal alloy manufacturers face the challenge of testing their products and materials to meet advertised quality specifications and comply with required industry standards. We solve those challenges for you with a wide variety of uniaxial tensile testing solutions at the most cost-effective prices in the industry. We have extensive knowledge of tensile testing metals in accordance with ASTM E8: • We understand the challenges you face. • We will save you time and money. • We have the products you need. Metal manufacturing requires the confidence that your incoming raw materials and your outgoing product have the proper strength and ductility needed to manufacture products that meet your advertised competitive specifications.