ASTM E190-92(1997)

Standard Test Method for Guided Bend Test for Ductility of Welds

SCOPE
1.1 This test method covers a guided bend test for the determination of soundness and ductility of welds in ferrous and nonferrous products. Defects, not shown by X rays, may appear in the surface of a specimen when it is subjected to progressive localized overstressing. This guided bend test has been developed primarily for plates and is not intended to be substituted for other methods of bend testing.  
1.2 The values stated in inch-pound units are to be regarded as the standard. The SI equivalents are in parentheses and may be approximate.  Note-For additional information see Terminology E6, and American Welding Society Standard D1.1.
1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use .

General Information

• Status: Historical
• Publication Date: 09-Oct-1997
• ICS: 25.160.40 - Welded joints and welds
• Technical Committee: E28 - Mechanical Testing
• Drafting Committee: E28.02 - Ductility and Formability

Relations

• Replaced By: ASTM E190-92(2003) - Standard Test Method for Guided Bend Test for Ductility of Welds
• Effective Date: 10-Aug-2003
• Referred By: ASTM A1058-19 - Standard Test Methods for Mechanical Testing of Steel Products—Metric
• Effective Date: 10-Oct-1997
• Referred By: ASTM E290-22 - Standard Test Methods for Bend Testing of Material for Ductility
• Effective Date: 10-Oct-1997
• Referred By: ASTM A1069/A1069M-19 - Standard Specification for Laser and Laser Hybrid Welded Stainless Steel Bars, Plates, and Shapes
• Effective Date: 10-Oct-1997
• Referred By: ASTM B608-18 - Standard Specification for Welded Copper-Alloy Pipe
• Effective Date: 10-Oct-1997
• Referred By: ASTM A370-23 - Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• Effective Date: 10-Oct-1997
• Referred By: ASTM B1015-20 - Standard Practice for Form and Style of Standards Relating to Refined Nickel and Cobalt and Their Alloys
• Effective Date: 10-Oct-1997
• Referred By: ASTM A1123/A1123M-22 - Standard Specification for Carbon Steel Laser and Laser-Hybrid Welded, Sharp-Cornered Profile (SCP), Built-Up, Square, Rectangular, and Special Shape Tube
• Effective Date: 10-Oct-1997

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: E 190 – 92 (Reapproved 1997)
Standard Test Method for
Guided Bend Test for Ductility of Welds
This standard is issued under the fixed designation E 190; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Significance and Use
1.1 This test method covers a guided bend test for the 4.1 The guided bend test as described in this test method is
determination of soundness and ductility of welds in ferrous used to evaluate the quality of welds as a function of ductility
and nonferrous products. Defects, not shown by X rays, may as evidenced by their ability to resist cracking during bending.
appear in the surface of a specimen when it is subjected to
5. Apparatus
progressive localized overstressing. This guided bend test has
been developed primarily for plates and is not intended to be 5.1 The guided bend test jig is shown in Fig. 1 (see
Explanatory Notes at end of this test method).
substituted for other methods of bend testing.
1.2 The values stated in inch-pound units are to be regarded
6. Sampling
as the standard. The SI equivalents are in parentheses and may
6.1 Sampling is performed in accordance with the require-
be approximate.
ments of relevant specifications and codes.
NOTE 1—For additional information see Terminology E 6, and Ameri-
can Welding Society Standard D 1.1.
7. Test Specimens
1.3 This standard does not purport to address all of the
7.1 The types of specimens generally used for guided bend
safety concerns, if any, associated with its use. It is the
testing are rectangular ones machined from plates and pipes.
responsibility of the user of this standard to establish appro-
The face surface of the flat specimen contains the greater width
priate safety and health practices and determine the applica-
of the weld material, while the opposite side is called the root
bility of regulatory limitations prior to use.
surface.
7.1.1 Transverse Side Bend—The weld is transverse to the
2. Referenced Documents
longitudinal axis of the specimen which is bent so that either
2.1 ASTM Standards:
one of the side surfaces becomes the convex surface of the bent
E 6 Terminology Relating to Methods of Mechanical Test-
specimen (Fig. 2 and Fig. 3).
ing
7.1.2 Transverse Face Bend—The weld is transverse to the
2.2 AWS Standard:
longitudinal axis of the specimen which is bent so that the weld
D1.1 Structural Welding Code, Steel
face surface becomes the convex surface of the bent specimen
(Fig. 4).
3. Summary of Test Method
7.1.3 Transverse Root Bend—The weld is transverse to the
3.1 The specimen is bent in a U-shaped die by means of a
longitudinal axis of the specimen which is bent so that the
centrally applied force to the weldment in a flat specimen
weld-root surface becomes the convex surface of the bent
supported at two positions equidistant from the line of force
specimen (Fig. 4).
application. The specimen is forced into the die by a plunger
7.1.4 Longitudinal Face Bend—The weld is parallel to the
having the shape necessary to produce the desired contour. The
longitudinal axis of the specimen which is bent so that the
convex surface of the bent specimen is examined for cracks or
weld-face surface becomes the convex surface of the bent
other open defects.
specimen (Fig. 5).
7.1.5 Longitudinal Root Bend—The weld is parallel to the
longitudinal axis of the specimen which is bent so that the weld
This test method is under the jurisdiction of ASTM Committee E-28 on
root surface becomes the convex surface of the bent specimen
Mechanical Testing and is the direct responsibility of Subcommittee E28.02 on
(Fig. 5).
Ductility and Flexure.
Current edition approved Jan. 15, 1992. Published March 1992. Originally
e1
8. Procedure
published as E 190 – 61. Last previous edition E 190 – 80 (1985) .
Annual Book of ASTM Standards, Vol 03.01.
8.1 Bend the guided-bend specimens in a test jig that is
Available from the American Welding Society, 2501 N.W. 7th St., Miami, FL
substantially in accordance with Fig. 1. Place transverse
33125.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
E 190
Thickness of Specimen
A, in. (mm) B, in. (mm) C, in. (mm) D, in. (mm)
in. (mm)
3 1 3 3 3
⁄8 (9.5) 1 ⁄2 (38) ⁄4 (19) 2 ⁄8 (60) 1 ⁄16 (30)
1 1 1 3 3
⁄8 (3.2) 2 ⁄8 (54) 1 ⁄16 (27) 2 ⁄8 (60) 1 ⁄16(30)
1 1
t 4t 2t 6t + ⁄8 ( + 3.2) 3t + ⁄16 ( + 1.6)
FIG. 1 Guided Bend Test Jig
t, in. (mm) T, in.
3 1
⁄8 to 1 ⁄2(9.5 to 38) t
>1 ⁄2 See Note
t, in. (mm) T, in.
3 1
NOTE 1—For plates over 1 ⁄2 in. (38 mm) thick, cut specimen into
⁄8 to 1 ⁄2(9.5 to 38) t
1 3 1
>1 ⁄2 (38) See Note approximately equal strips between ⁄4 and 1 ⁄2 in. (19 to 38 mm) wide and
test each strip.
NOTE 1—For plates over 1 ⁄2 in. (38 mm) thick, cut specimen into
FIG. 3 Side-Bend Specimen for Nonferrous Materials
3 1
approximately equal strips between ⁄4 and 1 ⁄2 in. (19 and 38 mm
...