ISO 8491 — Tube (Full Section) Bend Test for Metallic Materials
ISO 8491 is the bend test method for evaluating the ability of full-section metallic tubes of circular cross-section to undergo bending. To match this to your program, talk with our team.
What ISO 8491 Covers
It bends a full-section tube around a former to assess ductility and reveal surface or weld defects, without cutting a flat specimen from the tube wall.
How the Test Is Run
A length of tube is bent around a former of specified radius to a set angle, then the outer surface, including any weld, is examined for cracks.
Why It Matters
Full-section tube bend testing checks the tube as it will be used; a fixture sized for the tube diameter and a correct former radius are needed.
Reading the Designation
Cited as ISO 8491 with its edition year. Confirm the edition and specimen or fixture requirements before finalizing setup. To configure a bend or flexural setup, request a quote.
TensileMill CNC products for ISO 8491
Our specimen-preparation systems and testing equipment compatible with ISO 8491.
Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell
Bending Fixtures for Standard 3-Point Flexural Testing
Bending fixtures for standard 3-point flexural testing
Set up ISO 8491 testing with TensileMill CNC
Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.