DCEP
(Electrode Positive)
Code and
Specification Data
AWS
A5.5, Class E7010-P1
CWB-CSA
48.1, E41010
It
is an all-position cellulosic electrode that is especially suited for welding high
strength pipe. It produces the consistent, deep penetration required to
maintain a proper keyhole when vertical-down welding in open root pipe joints.
X-ray quality joints can be produced with it using flat, horizontal, overhead,
vertical-up, and vertical-down welding procedures.
It
is recommended for welding API grades X46, X52, and X56 pipe. It may also be
used for welding root passes in higher grade pipe in some circumstances.
Typical Mechanical
Properties
(As
Welded)
Yield
Strength, psi (MPa) 69,800
(481)
Tensile
Strength, psi (MPa) 81,200 (560)
%
Elongation in 2" (51 mm) 22
Typical Charpy
V-Notch Properties
(As
Welded)
Testing
Temp ft.-lbs.
(J)
-20°F (-29°C)
29 (39)
-50°F (-46°C) 26
(35)
Typical
Undiluted Weld Metal Analysis (%)
C Mn
Si P S Ni Mo
0.10 0.31 0.18 0.008 0.016 0.53 0.24
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