ASTM A938 PDF

ASTM A and ISO address the requirements for simple torsion (twist) testing of metallic wire. Both testing standards require that a wire specimen be. This standard is issued under the fixed designation A ; the number 1 This test method is under the jurisdiction of ASTM Committee A01 on Steel,. Stainless . ASTM A covers torsion testing of wire. ASTM A provides knowledge of the ductility of a wire when under torsion loading. A torsional test machine with.

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ASTM A Torsional Test of Wire

Software for Series Systems. Total Turns Measurement – The total number of turns to fracture are directly measured by a digital rotary asrm and automatically recorded by the testing software.

Our MT1 and MT2 torsion test systems offer an axial preload assembly that provides a constant axial force and can be adjusted for different size specimens.

WaveMatrix 2 for Dynamic Testing. Contact Us View Accessories Catalog. Guide rails enable the assembly astj move freely in the axial direction while a test is being performed.

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ASTM A938 Torsional Test of Wire

How can we help you? Check this box to receive pertinent commercial email from Instron focusing on products, upcoming events, and more! Speed of Twisting – The rate of testing can vary and both standards provide recommended ranges that are based on the wire diameter. Both testing standards require that a wire specimen be twisted about the longitudinal axis until it fails. Torque versus Rotation plots are automatically generated during the test and indicate where the wire atm and fractures.

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Bluehill LE for Basic Testing. Challenges The challenges of testing wire to these standards are: The MT torsion systems are supplied with precision torque cells that can measure torque accurately down to 0. We use cookies to improve your browsing experience.

Axial Tensile Force – To prevent the wire from bending away from the axis of rotation, a small tensile load is required to keep the specimen straight during testing. By continuing to use our site, you accept our cookie policy. This plot will show where the wire yielded during the twist test, as well as the failure point and profile. The MT torsion models are available with extended length if longer specimen lengths are required. Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience.

Subscribe to Our Newsletters. Additionally, some labs want to know the torque required for specimen failure satm would also like to see a plot of torque versus the number of turns for the entire test.

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Keyed chucks W-MTB provide smaller diameter clamping.

Universal materials testing software for static hydraulic, electromechanical and torsion testing systems – WBB. Lathe style chucks can be supplied for larger diameters and can also be modified to allow for clamping a wire with a 90 degree bend on a398 ends.

Discover simpler and smarter testing with features such as pre-loaded test methods, QuickTest in seconds, enhanced data exporting: Users of previous versions of software such as Bluehill 2 and Bluehill ashm can easily upgrade to the newest version of Bluehill.

Bluehill Universal Brochure Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience. The real-time measurement data can also be plotted graphically during the test.

ASTM A ISO Torsion Testing Wire – Instron

Upon failure, the number of turns should be recorded. Glossary of Materials Testing Terms. Gripping Maintaining a983 rate of turning Applying a constant tensile force Accommodating various specimen lengths Shielding against broken specimen fragments Automatic turn counting Measuring and plotting torque Instron Solution Gripping – Many common wire diameters can be gripped with standard drill style chucks.