Test measures ERW line pipe weld ductility

Journal Article · Mon Apr 08 04:00:00 EST 1985 · Oil Gas J.; (United States)

OSTI ID:5353977

Williams, D N; Eiber, R J

Electric-resistance-welded (ERW) pipe is frequently used to transport natural gas. Although present manufacturing methods usually produce good-quality product, small weld-line discontinuities may occasionally be present. Improvements are constantly sought in pipe-manufacturing techniques to reduce the likelihood of these discontinuities. Improvements are also sought in weld-inspection techniques to increase the likelihood that any such discontinuities will be discovered. Another approach toward improving the reliability of ERW line pipe, one that has received less attention, is to increase the tolerance of the weld region to small weld-line discontinuities, that is, to improve the weld's ductility. This article describes the development of a test method for obtaining an accurate, quantitative measure of ductility of seam welds in ERW line pipe.

• Research Organization: Battelle Columbus Laboratories, Columbus, OH
• OSTI ID: 5353977
• Journal Information: Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 83:14; ISSN OIGJA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
032000* -- Natural Gas-- Transport
Handling
& Storage
36 MATERIALS SCIENCE
360103 -- Metals & Alloys-- Mechanical Properties
ACCURACY
DUCTILITY
ENERGY SOURCES
ENERGY SYSTEMS
FABRICATION
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
INSPECTION
JOINING
JOINTS
MATERIALS TESTING
MECHANICAL PROPERTIES
NATURAL GAS
NATURAL GAS DISTRIBUTION SYSTEMS
OPTIMIZATION
PIPE JOINTS
PIPELINES
RELIABILITY
RESISTANCE WELDING
TENSILE PROPERTIES
TESTING
TRANSPORT
WELDED JOINTS
WELDING