ASTM A938 PDF

  • August 18, 2019

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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Upon failure, the number of turns should be recorded. Software for Series Systems. How can we help you? Subscribe to Instron News! Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience.

Users of previous versions of software such as Bluehill 2 and Bluehill 3 aetm easily upgrade to the newest astj of Bluehill. This plot will show x938 the wire yielded during the twist test, as well as the failure point and profile.

WaveMatrix 2 for Dynamic Testing. Concrete, Asphalt and Rock. MicroTorsion Series As the preferred solution for low-force torsion testing and component in-service simulation, the MT MicroTorsion Series test wires, fasteners, switches, and springs in the biomedical, automotive, and aerospace industries. Keyed chucks W-MTB provide smaller diameter clamping. The MT torsion systems are supplied with precision torque cells that can measure torque accurately down to 0. 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.

Bluehill Universal Brochure Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience.

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Torque versus Rotation plots are automatically generated during the test and indicate where the wire yields and fractures. Both testing standards require that a wire specimen be twisted about the longitudinal axis until it fails. Speed of Twisting – The rate of testing can vary and both standards provide recommended ranges that are based on the wire diameter. Contact Us View Accessories Catalog. Specimen Lengths – Instron’s MT torsion testers feature an adjustable tailstock assembly that allows for easy adjustment of the test opening.

ASTM A ISO Torsion Testing Wire – Instron

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. Keyless chucks W-MT01 offer a toothed profile that helps reduce slippage. Gripping Maintaining the rate of turning Applying a constant tensile force Accommodating various specimen lengths Shielding against broken specimen qstm Automatic turn counting Measuring and plotting torque Instron Solution Gripping – Many common wire diameters can be gripped with standard drill style chucks.

The real-time measurement data can also a98 plotted graphically during the test.

ASTM A938 Torsional Test of Wire

Email addresses can only contain letters, numbers and the following special characters: We use cookies to improve your browsing experience. Tests cannot be run when the door is opened and the rugged Lexan shield helps protect the operator from broken specimen fragments that may be ejected during failure. Next Checking to see if you are a returning visitor…. Additionally, some labs want to know the torque required for specimen failure and would also like to see a plot of asttm versus the number of turns for the entire test.

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Torsion Testing Wire to ASTM A938 and ISO 7800

Onsite Training At Your Facility. Email addresses must contain the symbol. Check this box to receive pertinent commercial email from Instron focusing on products, upcoming events, and more! As the preferred solution for low-force torsion testing and component in-service simulation, the MT MicroTorsion Series test wires, fasteners, switches, and springs in the biomedical, automotive, and x938 industries.

Bluehill LE for Basic Testing.

ASTM A – 18 Standard Test Method for Torsion Testing of Wire

By continuing to use our site, you accept our cookie policy. The MT torsion models are available with extended length if longer specimen lengths are required. Universal materials testing software for static hydraulic, electromechanical and torsion testing systems – WBB.

Please confirm that you agree with our privacy and cookies policy to submit this aatm. Guide rails enable the assembly to move freely in the axial direction while a test x938 being performed. Challenges The challenges of testing wire to these standards are: 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 the ends.

Glossary of Materials Testing Terms. Total Turns Measurement – The total number of turns to fracture are directly measured by a digital rotary encoder and automatically recorded by the testing software.

Discover simpler and smarter testing with features such as pre-loaded test methods, QuickTest in seconds, enhanced data exporting: