ISO 7438 is the International Standard for bend testing of metallic materials, checking whether a metal can undergo plastic deformation in bending without cracking. To match this to your program, talk with our team.
What ISO 7438 Covers
It bends a specimen through a defined angle around a former of specified diameter and assesses the outer surface for cracks, giving a simple pass or fail measure of ductility and soundness.
How the Test Is Run
A specimen is bent around a mandrel to a set angle in a bend fixture, then the tension surface is examined for cracking. The result confirms the metal meets the required bendability.
Why It Matters
Bend testing is a quick, widely specified ductility check for sheet, plate, and bar; a rigid bend fixture and controlled former diameter are essential.
Reading the Designation
Cited as ISO 7438 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.
Related Standards
ASTM E290 is the ASTM bend method and GB/T 232 and JIS Z 2248 are the Chinese and Japanese equivalents.
Request a Quote
Setting up bend testing of metals? Request a quote and our team will help you build a system matched to your material form and former diameter.
TensileMill CNC products for ISO 7438
Our specimen-preparation systems and testing equipment compatible with ISO 7438:
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
Get ready for ISO 7438 with TensileMill CNC
From specimen preparation to the test itself, TensileMill CNC supports the full ISO 7438 testing chain. Our range includes universal testing machines with three- and four-point bend fixtures. Share your material mix and throughput, and we will recommend a setup that fits ISO 7438.