ASTM A416/A416M: Low-Relaxation Seven-Wire Steel Strand for Prestressed Concrete
ASTM A416 is the specification for uncoated seven-wire steel strand for prestressed concrete, including its tensile requirements. To match this to your program, talk with our team.
What ASTM A416 Covers
It sets the mechanical and dimensional requirements for seven-wire prestressing strand, including breaking strength, yield, and elongation acceptance criteria.
How the Test Is Run
A strand sample is gripped with strand-specific grips and pulled to failure, and breaking force, yield strength, and elongation are checked against the specification.
Why It Matters
Strand acceptance testing underpins prestressed-concrete safety; strand grips or sockets and high-force capacity are essential.
Reading the Designation
Cited as ASTM A416 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 A416
Our specimen-preparation systems and testing equipment compatible with ASTM A416.

Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell

Threaded Fastener Grips for Bolt and Nut Tensile Testing
Threaded grips for bolt and nut tensile testing
Set up ASTM A416 testing with TensileMill CNC
Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.