CORED WIRE
Metalshield鈩? MC-715
Mild Steel Metal-Cored Wire (AWS E70C-6M H8)
Metalshield MC-715 is designed for virtually slag free deposits in single or multiple pass
welding applications. Its design achieves robust low temperature impacts and can be
used in semiautomatic and automatic applications. Excellent for welding over scale or
surface contaminants.
Welding Positions
Advantage Lincoln
鈥? Smooth, spray-type arc transfer and low spatter level.
鈥? High deposition efficiency.
鉃?
鉃?
3F
1G 2G
2F 3G
鈥? Good resistance to porosity on mill scale. 1F
鈥? Excellent "fast follow" characteristics.
鈥? Robust low temperature impact properties.
4G
鉃?
3G
鈥? Manufactured under a quality system certified to ISO 9001
requirements.
Shielding Gas
Typical Applications
75-95% Argon / Balance CO2
鈥? Mining equipment
Flow Rate: 30-45 CFH
鈥? Heavy equipment
Higher argon percentage will lower the amount of generated welding
鈥? Offshore
fume. A 15-25% CO2 range may be used for improved arc
鈥? General structural fabrication characteristics when welding in the short circuiting mode.
Conformance
AWS A5.18-01: E70C-6M H8
ASME SFA-5.18: E70C-6M H8
DIAMETERS/PACKAGING
BV: SA3-3YMHH
ABS: 4Y403H
Diameter 33 Lb. (15kg)
in. (mm) Plastic Spool Foil Bag DNV: IV Y40H5
GL: 4Y40H5S
.045 (1.1) ED030944
LR: 4Y40H5
1/16 (1.6) ED030945
Diffusible Hydrogen - As required per AWS A5.18-01
鈮? 8.0
Requirements (AWS E70C-6M H8)
Test Results: 80% Ar/20% CO2 2.0 - 5.0
MECHANICAL PROPERTIES 鈥? As Required per AWS A5.18-01
Yield Tensile
Strength Strength Elongation Charpy V-Notch, ft鈥bf (Joules)
psi (MPa) psi (MPa) (%) @ -20潞F (-29潞C) @-40掳F(-40掳C) @-51掳F(-46掳C)
Requirements 58,000 (400) 70,000 (483) 22 20 (27)
Not Specified Not Specified
AWS E70C-6M H8 min. min. min. min.
Test Results
80% Ar/20% CO2 65,000-71,000 76,000-81,000 25-31 Exceeds 76-115 69-88
(460-490) (527-556) Requirements (103-156) (94-119)
Publication C3.11.1 5/05
www.lincolnelectric.com
DEPOSIT COMPOSITION - As Welded per AWS A5.18-01
%C %Mn %S %P %Si %Ni %Cr %Mo %V %Ni+%Cr+%Mo+%V
Requirements 0.12 1.75 0.03 0.03 0.90 0.50 0.20 0.30 0.08 0.50
AWS E70C-6M H8 max. max. max. max. max. max. max. max. max. max.
Test Results
80% Ar/20% CO2 0.02-0.06 1.36-1.73 0.02-0.03 0.01-0.02 0.32-0.50 0.01-0.04 0.03-0.05 0.01-0.02 0.01 0.07-0.11
TYPICAL OPERATING PROCEDURES
Diameter
Polarity
CTWD(1) Wire Feed Speed Approx. Melt-Off Deposition
Wire Weight in/min Voltage Current Rate Rate Efficiency
(volts) (2)
Shielding Gas (m/min) (amps) lbs/hr (kg/hr) lbs/hr (kg/hr) (%)
.045鈥? (1.1 mm) 110 (2.8) 15 90 2.7 (1.2) 2.4 (1.1) 89
DC+ 135 (3.4) 16 120 3.4 (1.5) 3.0 (1.4) 88
3/4-1鈥? (19-25 mm) 185 (4.7) 17 150 4.6 (2.1) 4.2 (1.9) 91
.420 lbs./1000鈥? (7.5 g/m) 250 (6.4) 28-30 180 6.5 (3.0) 6.0 (2.7) 92
75-95% Ar/ 450 (11.5) 31-34 275 11.6 (5.3) 10.6 (4.8) 91
Balance CO2 650 (16.5) 35-38 340 16.5 (7.5) 15.0 (6.8) 91
1/16鈥? (1.6 mm) 70 (2.0) 15 145 3.6 (1.7) 3.3 (1.5) 92
DC+ 80 (2.1) 16 160 4.1 (1.9) 3.7 (1.7) 90
1鈥? to 1-1/4鈥? (25-32 mm) 90 (2.3) 18 170 4.6 (2.1) 4.2 (1.9) 91
.765 lbs/1000鈥? (13.7 g/m) 150 (3.8) 25-26 235 7.0 (3.2) 6.4 (2.9) 91
75-95% Ar/ 250 (6.4) 29-32 325 12.1 (5.5) 11.0 (5.0) 91
Balance CO2 350 (8.9) 34-37 400 16.9 (7.7) 15.4 (7.0) 91
450 (11.4) 36-38 460 22.0 (10.0) 20.1 (9.1) 91
(1) To estimate ESO, subtract 1/4鈥? (6.0mm) from CTWD.
(2) For greater percentage of CO shielding gas, increase voltage by 1-2 volts.
2
NOTE: Shaded areas are recommended procedures for short circuiting mode with 75-85% Ar/Balance CO2.
Material Safety Data Sheets (MSDS) and Certificates of Conformance are available on our website at www.lincolnelectric.com
T E S T R E S U LT S
Test results for mechanical properties, deposit or electrode composition and diffusible hydrogen levels were obtained from a weld produced and tested according to prescribed
standards, and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not
limited to, weld procedure, plate chemistry and temperature, weldment design and fabrication methods. Users are cautioned to confirm by qualification testing, or other
appropriate means, the suitability of any welding consumable and procedure before use in the intended application.
C U S T O M E R A S S I S TA N C E P O L I C Y
The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the
needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric for advice or information about their use of our products. We respond
to our customers based on the best information in our possession at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability,
with respect to such information or advice. We expressly disclaim any warranty of any kind, including any warranty of fitness for any customer鈥檚 particular purpose, with respect to
such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating or correcting any such information or advice once it has
been given, nor does the provision of information or advice create, expand or alter any warranty with respect to the sale of our products.
Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control of, and remains the sole responsibility
of the customer. Many variables beyond the control of Lincoln Electric affect the results obtained in applying these types of fabrication methods and service requirements.
Subject to Change 鈥? This information is accurate to the best of our knowledge at the time of printing. Please refer to www.lincolnelectric.com for any updated information.
T H E L I N C O L N E L E C T R I C C O M PA N Y
22801 St. Clair Ave., Cleveland, OH 44117-1199 鈥? 216.481.8100 鈥? www.lincolnelectric.com
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