Lincoln Electric 2HBG - Manual (Page 15)

15
Pipeliner
www.lincolnelectric.com
1G 2F 2G
3G ➔ 4G 5G ➔
Pipeliner G70M is designed to
deliver outstanding weld properties
for semi-automatic applications.
Robust impacts mean consistently
high CVN values.
PIPELINER G70M
AWS E71T-1MJH8 & E71T-9MJH8 Gas-Shielded Flux-Cored (FCAW-G) Wire Electrode
WELDING POSITIONS
ADVANTAGE LINCOLN
• Impacts are typically in the 60 ft•lbf
@ -20°F (-29°C), as-welded.
• Smooth, spray type arc transfer and
low spatter level.
• Slag system provides for puddle
support, good wetting and bead
shape in all positions.
• Manufactured under a quality
system certified to ISO 9001
requirements.
• Manufactured to actual lot control.
Actual certificates of conformance
are available upon request.
TYPICAL APPLICATIONS
• All position single and multiple pass
wire designed to join pipe up to
X70.
SHIELDING GAS
75-80% Ar / Balance CO2
Flow Rate 40-50 CFH (19-24 l/min.)
DEPOSIT COMPOSITION -As Required per AWS A5.20-95
%C %Mn %P %S %Si %Ni
Requirements
AWS E71T-1MJH8
.18 1.75 .03 .03 .90 .50
AWS E71T-9MJH8 max. max. max. max. max. max.
Typical Results
75% Ar / 25% CO2
.05 1.60 .013 .011 .45 .36
DIAMETERS / PACKAGING
Diameter 10 Lb. (4.5 kg) 25 Lb. (11 kg)
in. (mm) Plastic Spool Plastic Spool
Foil Bag Foil Bag
.045 (1.1) ED030926 ED030927
NOTE: Pipeliner elec-
trodes are manufactured
under lot control. A
Certificate of Test show-
ing actual deposit chem-
istry and mechanical
properties per AWS
A5.20 is available on
request from the factory
for every lot of electrode.
(Fax 216-383-8386).
DIFFUSIBLE HYDROGEN
- As Required per AWS A5.20-95
(mL/100g
weld deposit)
Requirements
E71T-1MJH8
8
& E71T-9MJH8
Typical Results 4 - 8
75-80% Ar/CO
2
MECHANICAL PROPERTIES - As Required per AWS A5.20-95
Charpy V-Notch
Yield Strength Tensile Strength Elongation ft•lbf (Joules)
psi (MPa) psi (MPa) (%) @ -40ºF (-40ºC)
Required 58,000 (400) 70,000 (480) 22 20 (27)
AWS E71T-1MJH8 min. min. min. min.
& E71T-9MJH8
Typical Results
75% Ar / 25% CO
2
80,000 89,000 26 78 (106)
(550) (612)
CONFORMANCE
AWS A5.20-95: E71T-1MJH8
E71T-9MJH8
ASME SFA-5.20: E71T-1MJH8
E71T-9MJH8
TYPICAL OPERATING
PROCEDURES
Diameter
Parameters .045 in. (1.1mm)
Polarity DC+
CTWD (1) – in. (mm) 3/4 (19)
Wire Weight – lbs/in. (g/m) .361/1000 (6.45)
Wire Feed Speed – in/min (m/min) 175-525 (4.4-13.3)
Arc Voltage (volts) 23-30
Approx. Current (amps) 130-275
Melt-off Rate – lbs/hr (kg/hr) 3.9-11.9 (1.8-5.4)
Deposition Rate – lbs/hr (kg/hr) 3.2-9.8 (1.4-4.4)
(1) CTWD (Contact
Tip to Work
Distance).
Subtract 1/4" to
calculate Electrical
Stickout.