ASTM A938 Torsion Testing of Wire
ASTM A938 is the test method for the torsion (twist) testing of metallic wire. To match this to your program, talk with our team.
What ASTM A938 Covers
It provides a practical check on how wire behaves under twisting, revealing ductility and internal defects in drawn wire.
How the Test Is Run
A wire specimen of defined length is clamped and twisted about its axis at a controlled rate until it fails or reaches a set number of twists, and the result is recorded.
Why It Matters
Torsion testing reveals surface and structural flaws that tension alone can miss; a torsion tester with accurate twist counting is essential.
Reading the Designation
Cited as ASTM A938 with its edition year. Confirm the edition and specimen or fixture requirements before finalizing setup. To configure a testing setup, request a quote.
TensileMill CNC products for ASTM A938
Our specimen-preparation systems and testing equipment compatible with ASTM A938.
TensileMill CNC MICRO – Precision Flat Tensile & Impact Micro Machine
MICRO – Precision Flat Tensile & Impact Sample Preparation
TensileTurn CNC – Industrial Upgrade – Round Tensile Sample Preparation Machine
Industrial Upgrade – Round Tensile Sample Preparation
Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell
TensileTurn CNC MINI – Compact Round Tensile Specimen Preparation Machine
MINI – Compact Round Tensile Specimen Preparation
Set up ASTM A938 testing with TensileMill CNC
Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.