ASTM E290 covers bend testing for ductility of materials. Included in the procedures are four conditions of constraint on the bent portion of the specimen; a guided-bend test using a mandrel or plunger of defined dimensions to force the mid-length of the specimen between two supports separated by a defined space; a semi-guided-bend test in which the specimen is bent, while in contact with a mandrel, through a specified angle or to a specified inside radius (r) of curvature, measured while under the bending force; a free-bend test in which the ends of the specimen are brought toward each other, but in which no transverse force is applied to the bend itself and there is no contact of the concave inside surface of the bend with other material; a bend and flatten test, in which a transverse force is applied to the bend such that the legs make contact with each other over the length of the specimen.
By means of our bend testing expertise and modular product design, we will help find the solution that is right for you. Give our test engineers a call today for help configuring the best test machine and accessories according to ASTM E290.
Recommended Test Machine
Force range of 5 kN to 600 kN (1,125 lbf to 135,000 lbf)
Adjustable test space
The most popular choice for static tension and compression tests
These dual column testers are available in both tabletop and floor standing models
Force range of 300 kN to 2,000 kN (67,500 lbf to 450,000 lbf)
The best choice for performing static tension and/or compression applications when force capacities of 300 kN (67,000 lbf) or more are needed
Includes its own grips
Recommended Testing Accessories
Rated to 25 kN (5,625 lbf)
Designed in accordance to ASTM E290
Rated to 50 kN (11,250 lbf)
Includes two loading noses: 19.05 mm and 27 mm in diameter
Designed in accordance to ASTM E290
