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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The MT torsion systems are supplied with precision torque cells that can measure torque accurately down to 0.

Challenges The challenges of testing wire to these standards are: Subscribe to Our Newsletters. Bluehill Universal Brochure Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience. Bluehill LE for Basic Testing. Users of previous versions of software such as Bluehill 2 and Bluehill 3 can easily upgrade to the newest version of Bluehill.

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. Tests cannot be ast, when the door is opened and the rugged Lexan shield helps protect the operator from broken specimen fragments that may be ejected during failure. Software for Series Systems.

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

By continuing to use our site, you accept our cookie policy. Check this aztm to receive pertinent commercial email from Instron focusing on products, upcoming events, and more! The real-time measurement data can also be plotted graphically during the test. Concrete, Asphalt and Rock. Upon failure, the number of turns should be recorded.

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Universal materials testing software for static hydraulic, electromechanical and torsion testing systems – WBB.

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. Glossary of Materials Testing Terms. 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.

ASTM A – 07 Standard Test Method for Torsion Testing of Wire

The MT torsion models are available with extended length if s938 specimen lengths are required. Specimen Lengths – Instron’s MT torsion testers feature an adjustable tailstock assembly that allows for easy adjustment of the test opening. Keyless chucks W-MT01 offer a toothed profile that helps reduce slippage.

Email addresses can only contain letters, numbers and the following special q938 This plot will show where the wire yielded during the twist test, as well as the failure point and profile. Keyed chucks W-MTB provide smaller diameter clamping. 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.

Torsion Testing Wire to ASTM A938 and ISO 7800

Onsite Training At Your Facility. Guide rails enable the assembly to move freely in the axial direction while a test is being performed. Email addresses must contain the symbol. We use cookies to improve your browsing experience.

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ASTM A938 Torsional Test of Wire

Next Checking to see if you are a returning visitor…. How can we help you? Additionally, some labs want to know the torque required for specimen failure and would also like to see a plot of torque versus the number of turns for the entire test. Bluehill Universal Software is built from the ground-up for 9a38 interaction and an intuitive user experience. Astk simpler and smarter testing with features such as pre-loaded test methods, QuickTest in seconds, enhanced data exporting: WaveMatrix 2 for Dynamic Testing.

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. 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.

Contact Us View Accessories Catalog. Torque versus Rotation plots are automatically generated during the test and indicate where the wire yields and sstm. Speed of Twisting – The rate of testing can vary and both standards provide recommended ranges that are based on the wire diameter. Gripping Maintaining the rate of turning Applying a constant tensile force Accommodating various specimen lengths Shielding against broken specimen fragments Automatic turn counting Measuring and plotting aztm Instron Solution Gripping – Many common wire z938 can be gripped with standard drill style chucks.

Both testing standards require that a wire specimen be twisted about the longitudinal axis until it fails.