MILD STEEL
GAS-SHIELDED FLUX-CORED WIRES (FCAW/MCAW)
Coreweld 70
Metal type FCAW wire for mild steel and 490N/mm2 class high tensile strength steel. Coreweld 70 is a metal cored wire that combines the high deposition rates of a
rutile slag flux-cored electrode with the high efficiencies of solid wire.
Specifications
Classifications SFA/AWS A5.18 : E70C-6C
SFA/AWS A5.18 : E70C-6M H4
JIS Z 3313 : T490T15-0C(M)A-U
JIS Z 3313 : YFW-A50DM
KS D 7104 : YFW-A50DM
Approvals ABS : E70C-6M
BV : SA3YM H10 (M21)
BV : SA3YM HH (M21)
CWB : E490T15-C1A3-CS1-H4
CWB : E491C-6M-H4
CWB : E491T15-GA3-CS1-H4, E491T15-M20A3-CS1-H4
DNV-GL : III YMS H10 (M21)
LR : 3YS H10 (M21)
Industry Automotive
Mobile Equipment
Industrial and General Fabrication
Power Generation
Bridge Construction
Civil Construction
Pipeline
Ship/Barge Building
Railcars
Approvals are based on factory location. Please contact ESAB for more information.
Welding Current DC+
Alloy Type C Mn
Shielding Gas M21, C1 (EN ISO 14175)
Typical Tensile Properties
Condition Yield Strength Tensile Strength Elongation
M21 shielding gas
As Welded 457 MPa 565 MPa 28 %
C1 Shielding Gas
As Welded 439 MPa 548 MPa 26 %
Typical Charpy V-Notch Properties
Condition Testing Temperature Impact Value
M21 shielding gas
As Welded -18 °C 62 J
As Welded -29 °C 48 J
C1 Shielding Gas
As Welded -18 °C 58 J
As Welded -29 °C 44 J
Typical Weld Metal Analysis %
C Mn Si S P Ni Cr Mo V Cu
C1 Shielding Gas
esab.com/fillermetals
MILD STEEL
GAS-SHIELDED FLUX-CORED WIRES (FCAW/MCAW)
Coreweld 70
Typical Weld Metal Analysis %
C Mn Si S P Ni Cr Mo V Cu
0.05 1.31 0.49 0.011 0.013 0.013 0.022 0.001 0.003 0.012
M21 shielding gas
0.06 1.44 0.58 0.013 0.014 0.014 0.023 0.001 0.004 0.015
Typical Weld Metal Analysis %
Nb
C1 Shielding Gas
0.003
M21 shielding gas
0.002
Recommended Welding Parameters
Wire Diameter Current TTW Dist. Voltage Wire Feed Speed
75% Ar - 25% CO2
0.9 mm 130-260 A 9.5-19 mm 23-29 V 813-1727 cm/min
1.2 mm 150-350 A 9.5-19 mm 24-32 V 838-1453 cm/min
1.4 mm 200-400 A 9.5-19 mm 26-32 V 665.5-833 cm/min
1.6 mm 300-500 A 9.5-19 mm 26-34 V 460-846 cm/min
2.4 mm 350-550 A 19-31.75 mm 27-33 V 406-711 cm/min
2.0 mm 400-580 A 19-31.75 mm 28-34 V 292-500 cm/min
esab.com/fillermetals
