Lincoln Electric 2HBG manual All position wire designed to weld pipe up to

PIPELINER AUTOWELD G70M AWS E71T-1MJH8 & E71T-9MJH8 Gas-Shielded Flux-Cored (FCAW-G) Wire Electrode

Pipeliner Autoweld G70M is specifically designed for use with the Autoweld pipe welding system to deliver outstanding weld properties.

ADVANTAGE LINCOLN

•Specifically designed for use with Autoweld™ pipe welding system on pipe up to X70.

•Tightly controlled cast and helix assure proper wire placement every time.

•Excellent mechanical properties — impacts are normally 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 wire designed to weld pipe up to X70.

WELDING POSITIONS

1G	2F	2G
➔	4G	5G	➔
3G

SHIELDING GAS

75-80% Ar / Balance CO2

Flow Rate 40-50 CFH (19-24 l/min.)

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% CO2	82,700	93,200		26	63	(85)
	(570)	(642)

NOTE: Pipeliner electrodes are manufactured under lot control. A Certificate of Test showing actual deposit chemistry and mechanical properties per AWS A5.20 is available on request from the factory for every lot

of electrode.

(Fax 216-383-8386).

DIAMETERS / PACKAGING

Diameter		10 Lb. (4.5 kg)
in.	(mm)	Plastic Spool
		Foil Bag
.052	(1.3)	ED030928

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	1.62	.01	<.01	.46	.39

TYPICAL OPERATING

PROCEDURES

		Diameter
Parameters		.052 in. (1.3 mm)
Polarity			DC+
CTWD(1) – in. (mm)		3/4 (19)
Wire Weight – lbs/in. (g/m)		.482/1000 (8.61)
Wire Feed Speed – in/min (m/min)		150-450 (3.8-11.4)
Arc Voltage (volts)		22-31
Approx. Current (amps)		155-315
Melt-off Rate – lbs/hr (kg/hr)		4.4-13.3 (2.0-6.0)
Deposition Rate – lbs/hr (kg/hr)		3.6-10.9 (1.6-4.9)
		(1)		CTWD (Contact
				Tip to Work
DIFFUSIBLE HYDROGEN
				Distance).
- As Required per AWS A5.20-95				Subtract 1/4" to
				calculate Electrical
				Stickout.
	(mL/100g
	weld deposit)
Requirements
E71T-1MJH8	8
& E71T-9MJH8
Typical Results	4 - 8
75-80% Ar/CO2

Pipeliner

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