ASTM E190
Full Name
ASTM E190 – Standard Test Method for Guided Bend Test for Ductility of Welds
Scope
ASTM E190 is a standardized method used to assess the ductility of welds in metallic materials. This test involves bending a welded specimen in a controlled manner and observing its behavior. The test is particularly useful for evaluating the quality of welds in components that are subjected to bending loads.
Key aspects of the ASTM E190 standard include:
- Specimen preparation: the specimen is prepared with a specific geometry and weld configuration, depending on the type of weld and the material being tested.
- Bend test: the specimen is bent using a guided bend test machine, which applies a controlled bending moment.
- Ductility assessment: the ductility of the weld is evaluated based on the amount of bending the specimen can withstand before fracturing or exhibiting excessive deformation.
- Acceptance criteria: the standard specifies acceptance criteria for the bend test, such as the minimum angle of bend or the maximum allowable deformation.
The guided bend test is commonly used to assess the following properties of welds:
- Ductility: the ability of the weld to deform plastically without fracturing.
- Toughness: the resistance of the weld to brittle fracture.
- Weld quality: the overall quality of the weld, including its soundness and uniformity.
Resources
Keywords
guided bend test; ductility of welds; specimen preparation; weld configuration; bend test; ductility assessment; acceptance criteria; angle of bend; maximum allowable deformation; ductility; toughness; weld quality; quality control; weld failures; integrity of structures