COREWELD 70
Trusted by businesses across Kolkata and beyond
COREWELD 70 SUPPLIER
COREWELD 70 is a metal cored wire that combines the high deposition rates of a fl ux cored wire with the high efficiencies of solid wire. The wire exhibits low levels of spatter, slag and fumes.
Features & Benefits
ESAB pioneered the development of gas-shielded flux-cored welding (FCAW) in 1957. Today, ESAB offers the broadest variety of mild steel and low alloy flux-cored wires available anywhere in the world.
ESAB cored wires offer flat welds with deep penetration and wetting into plate, with high deposition rates and efficiencies. This dramatically reduces weld time, increasing productivity.
Flux-cored welding can be up to three times more productive than Stick and up to 2.5 times more productive than MIG. FCAW also offers productive positional welding and low diffusible hydrogen levels (H5) when required.
ESAB Coreweld metal-cored wires were developed to meet the needs of demanding applications, such as structural steel construction, heavy equipment, transportation, bridges, petrochemical processing, offshore rigs, railcars, shipbuilding, pressure vessels, and general fabrication.
Utilizing advanced manufacturing processes and specially formulated composite fillers, Coreweld metal-cored wires combine high deposition rates and efficiencies, high travel speeds, excellent penetration, and ease of use. Metal-cored wires also provide excellent arc stability and outstanding penetration and wetting, with superior fusion at the root joint and sidewall. The result is a high-quality weld with minimal slag and spatter, and fewer residual silica islands.
Metal-cored wires offer several advantages over solid wire. Since metal-cored wires carry the current on the outer sheath, current densities are considerably higher than those found in wires sold, where the current is carried across the entire cross-sectional area. As a result, the metal-cored arc tends to be softer and can bridge gaps easier with reduced tendancy for burn through.
Specifications
| 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 | Industrial and General Fabrication Automotive Railcars Mobile Equipment Ship/Barge Building Bridge Construction Civil Construction Pipeline Power Generation |
| 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 | Nb |
| C1 Shielding Gas | ||||||||||
| 0.05 | 1.31 | 0.49 | 0.011 | 0.013 | 0.013 | 0.022 | 0.001 | 0.003 | 0.012 | 0.003 |
| M21 shielding gas | ||||||||||
| 0.06 | 1.44 | 0.58 | 0.013 | 0.014 | 0.014 | 0.023 | 0.001 | 0.004 | 0.015 | 0.002 |
| Deposition Data | |||||
|---|---|---|---|---|---|
| Diameter | Current | Voltage | Wire Feed Speed | TTW Dist. | Deposition Rate |
| 0.9 mm | 200-250 A | 27-29 V | 8.38-17.27 m/min | 9.5 mm | 3.0-4.3 kg/h |
| 1.2 mm | 250-325 A | 28-32 V | 8.38-12.4 m/min | 9.5 mm | 3.6-5.5 kg/h |
| 1.2 mm | 250-350 A | 28-32 V | 8.38-13.0 m/min | – | 3.6-5.8 kg/h |
| 1.4 mm | 275-325 A | 29-30 V | 6.65-8.33 m/min | – | 3.4-4.6 kg/h |
| 1.6 mm | 300-425 A | 30-33 V | 4.6-7.95 m/min | 9.5 mm | 3.9-6.9 kg/h |
| 1.6 mm | 300-450 A | 30-34 V | 4.6-8.46 m/min | – | 3.9-7.4 kg/h |
| 2.4 mm | 400-550 A | 31-32 V | 2.92-5.0 m/min | 19.0 mm | 5.2-9.5 kg/h |
| 2.4 mm | 400-550 A | 31-32 V | 2.92-5.0 m/min | – | 5.2-9.5 kg/h |
| 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 | |