21 Manganese-Molybdenum
(Mn-Mo) Submerged Arc Wires Spoolarc
40A AWS Class EA1
Description: n
Designed for single or multipass welding
of carbon and low alloy steels. n
Produces good as welded and stress relieved
impact toughness. n
Weld metal tensile strength is in excess
of 60 ksi (414 MPa). n
This wire meets Military Type F7A2-EA1-A2-N,
MIL-E-23765/4 specifications. n
Applications include pressure vessel
fabrication and other similar welds which require postweld heat treatment.
n
Usable with Unionmelt 80 flux.
n
Wire diameters: 1/16" (1.6 mm),
3/32" (2.4 mm), 1/8" (3.2 mm), 5/32" (4.0 mm) & 3/16" (4.8 mm).
Spoolarc 40B AWS
Class EA2 Description:
n
Designed for single or multipass welding
of carbon and low alloy steels. n
Produces good as welded and stress
relieved impact toughness. n
Weld metal tensile strength is in excess
of 70 ksi (483 MPa). n
Applications include pressure vessel
fabrication and other similar welds which require postweld heat treatment.
n
Usable with Unionmelt 80, 429, 709-5
fluxes. n
Wire diameters: 1/16" (1.6 mm),
3/32" (2.4 mm), 1/8" (3.2 mm), 5/32" (4.0 mm) & 3/16" (4.8 mm).
Spoolarc 40 AWS
Class EA3 n
Designed for single or multipass wire
for welding carbon and low alloy steels. n
Produces good as welded and stress
relieved impact toughness. n
Weld metal tensile strength is in excess
of 80 ksi (552 MPa). n
Applications include pressure vessel
fabrication and other similar welds which require postweld heat treatment.
n
Usable with Unionmelt 80, 124 &
0091 fluxes. n
Wire diameters: 1/16" (1.6 mm),
3/32" (2.4 mm),
