Coreweld 77-HS

Coreweld 77-HS is a metal-cored wire designed to run at faster travel speeds, higher deposition rates and leave very few silica islands. This metal cored wire is ideal for robotic applications. Optimal performance is achieved with 90% Argon / 10% CO2 shielding gas. .

Industries

Mobile Equipment
Railcars
Industrial and General Fabrication
Automotive

Process

MCAW - Metal Core Arc Welding

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	ASME SFA A5.18 ASME SFA A5.36 AWS A5.36 : E70T15-M20A4-CS1-H4 AWS A5.36 : E70T15-M21A4-CS1-H4 AWS A5.18 : E70C-6M H4
Approvals	CWB : CSA W48 E491C-6M-H4 DNV-GL
Industry	Mobile Equipment Railcars Industrial and General Fabrication Automotive

Approvals are based on factory location. Please contact ESAB for more information.

Typical Tensile Properties
Condition	Yield Strength	Tensile Strength	Elongation	Reduction in Area
90% Ar - 10% CO2
As Welded	425 MPa ( 62 ksi )	510 MPa ( 74 ksi )	33 %	58 %
75% Ar - 25% CO2
As Welded	420 MPa ( 61 ksi )	515 MPa ( 75 ksi )	32 %	60 %

Typical Charpy V-Notch Properties
Condition	Testing Temperature	Impact Value
75% Ar - 25% CO2
As Welded	-29 °C ( -20 °F )	52 J ( 38 ft-lb )
As Welded	-40 °C ( -40 °F )	38 J ( 28 ft-lb )
90% Ar - 10% CO2
As Welded	-40 °C ( -40 °F )	54 J ( 40 ft-lb )
As Welded	-29 °C ( -20 °F )	85 J ( 63 ft-lb )

Typical Weld Metal Analysis %
C	Mn	Si	S	P	Ni
90% Ar - 10% CO2
0.04	1.00	0.70	0.015	0.01	0.40
75% Ar - 25% CO2
0.04	0.90	0.70	0.015	0.01	0.40

Deposition Data
Diameter	Current	Voltage	Wire Feed Speed	Deposition Efficiency (%)	TTW Dist.	Deposition Rate
90% Ar - 10% CO2
1.2 mm ( .045 in. )	330 A	32 V	1270 cm/min ( 500 in./min )	99 %	16 mm ( 5/8 in. )	5.8 kg/h ( 12.7 lbs/h )
1.4 mm ( .052 in. )	240 A	27 V	640 cm/min ( 250 in./min )	95 %	16 mm ( 5/8 in. )	3.5 kg/h ( 7.7 lbs/h )
1.6 mm ( 1/16 in. )	460 A	32 V	890 cm/min ( 350 in./min )	99 %	19 mm ( 3/4 in. )	7.2 kg/h ( 15.9 lbs/h )
1.2 mm ( .045 in. )	360 A	33 V	1400 cm/min ( 550 in./min )	99 %	16 mm ( 5/8 in. )	13.9 kg/h ( 6.3 lbs/h )
1.4 mm ( .052 in. )	410 A	36 V	1330 cm/min ( 530 in./min )	99 %	16 mm ( 5/8 in. )	7.1 kg/h ( 15.7 lbs/h )
1.6 mm ( 1/16 in. )	230 A	26 V	380 cm/min ( 150 in./min )	91 %	19 mm ( 3/4 in. )	2.81 kg/h ( 6.2 lbs/h )
1.2 mm ( .045 in. )	230 A	25 V	760 cm/min ( 300 in./min )	96 %	16 mm ( 5/8 in. )	3.5 kg/h ( 7.7 lbs/h )
1.2 mm ( .045 in. )	260 A	28 V	890 cm/min ( 350 in./min )	97 %	16 mm ( 5/8 in. )	4.1 kg/h ( 9.1 lbs/h )
1.4 mm ( .052 in. )	340 A	31 V	1020 cm/min ( 400 in./min )	99 %	16 mm ( 5/8 in. )	5.1 kg/h ( 11.2 lbs/h )
1.4 mm ( .052 in. )	190 A	26 V	440 cm/min ( 180 in./min )	94 %	16 mm ( 5/8 in. )	2.5 kg/h ( 5.5 lbs/h )
1.2 mm ( .045 in. )	290 A	29 V	1020 cm/min ( 400 in./min )	98 %	16 mm ( 5/8 in. )	4.6 kg/h ( 10.2 lbs/h )
1.4 mm ( .052 in. )	280 A	28 V	760 cm/min ( 300 in./min )	97 %	16 mm ( 5/8 in. )	4.2 kg/h ( 9.2 lbs/h )
1.6 mm ( 1/16 in. )	510 A	36 V	1210 cm/min ( 480 in./min )	99 %	19 mm ( 3/4 in. )	9.4 kg/h ( 20.7 lbs/h )
1.2 mm ( .045 in. )	200 A	27 V	640 cm/min ( 250 in./min )	95 %	16 mm ( 5/8 in. )	3.0 kg/h ( 6.5 lbs/h )
1.6 mm ( 1/16 in. )	290 A	27 V	510 cm/min ( 200 in./min )	95 %	19 mm ( 3/4 in. )	4.0 kg/h ( 8.8 lbs/h )
1.6 mm ( 1/16 in. )	340 A	29 V	640 cm/min ( 250 in./min )	98 %	19 mm ( 3/4 in. )	5.6 kg/h ( 12.3 lbs/h )
1.2 mm ( .045 in. )	170 A	24 V	510 cm/min ( 200 in./min )	94 %	16 mm ( 5/8 in. )	2.4 kg/h ( 5.2 lbs/h )

Recommended Welding Parameters
Current	Wire Diameter	TTW Dist.	Voltage	Wire Feed Speed
75% Ar - 25% CO2
200-260 A	1.2 mm ( .045 in. )	16 mm ( 5/8 in. )	27-28 V	635-889 cm/min ( 250-350 in./min )
230-340 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	26-29 V	381-635 cm/min ( 150-250 in./min )
190-310 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	24-27 V	457-889 cm/min ( 180-350 in./min )
330-390 A	1.2 mm ( .045 in. )	16 mm ( 5/8 in. )	29-32 V	1270-1651 cm/min ( 500-650 in./min )
260-330 A	1.2 mm ( .045 in. )	16 mm ( 5/8 in. )	26-29 V	889-1270 cm/min ( 350-500 in./min )
430-510 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	30-33 V	889-1219 cm/min ( 350-480 in./min )
370-420 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	30-32 V	1143-1397 cm/min ( 450-550 in./min )
310-360 A	1.2 mm ( .045 in. )		30-33 V	1143-1397 cm/min ( 450-550 in./min )
430-510 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	32-36 V	889-1219 cm/min ( 350-480 in./min )
340-410 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	31-36 V	1016-1346 cm/min ( 400-530 in./min )
370-430 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	28-30 V	711-889 cm/min ( 280-350 in./min )
280-340 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	28-31 V	762-1016 cm/min ( 300-400 in./min )
260-310 A	1.2 mm ( .045 in. )	16 mm ( 5/8 in. )	28-30 V	889-1143 cm/min ( 350-450 in./min )
230-370 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	24-28 V	381-711 cm/min ( 150-280 in./min )
190-280 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	29-28 V	457-762 cm/min ( 180-300 in./min )
170-260 A	1.2 mm ( .045 in. )	16 mm ( 5/8 in. )	24-26 V	508-889 cm/min ( 200-350 in./min )
340-430 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	29-32 V	635-889 cm/min ( 250-350 in./min )
310-370 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	27-30 V	889-1143 cm/min ( 350-450 in./min )
90% Ar - 10% CO2
200-260 A	1.2 mm ( .045 in. )	16 mm ( 5/8 in. )	27-28 V	635-889 cm/min ( 250-350 in./min )
230-340 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	26-29 V	381-635 cm/min ( 150-250 in./min )
190-310 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	24-27 V	457-889 cm/min ( 180-350 in./min )
330-390 A	1.2 mm ( .045 in. )	16 mm ( 5/8 in. )	29-32 V	1270-1651 cm/min ( 500-650 in./min )
260-330 A	1.2 mm ( .045 in. )	16 mm ( 5/8 in. )	26-29 V	889-1270 cm/min ( 350-500 in./min )
430-510 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	30-33 V	889-1219 cm/min ( 350-480 in./min )
370-420 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	30-32 V	1143-1397 cm/min ( 450-550 in./min )
310-360 A	1.2 mm ( .045 in. )		30-33 V	1143-1397 cm/min ( 450-550 in./min )
430-510 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	32-36 V	889-1219 cm/min ( 350-480 in./min )
340-410 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	31-36 V	1016-1346 cm/min ( 400-530 in./min )
370-430 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	28-30 V	711-889 cm/min ( 280-350 in./min )
280-340 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	28-31 V	762-1016 cm/min ( 300-400 in./min )
260-310 A	1.2 mm ( .045 in. )	16 mm ( 5/8 in. )	28-30 V	889-1143 cm/min ( 350-450 in./min )
230-370 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	24-28 V	381-711 cm/min ( 150-280 in./min )
190-280 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	29-28 V	457-762 cm/min ( 180-300 in./min )
170-260 A	1.2 mm ( .045 in. )	16 mm ( 5/8 in. )	24-26 V	508-889 cm/min ( 200-350 in./min )
340-430 A	1.6 mm ( 1/16 in. )	19 mm ( 3/4 in. )	29-32 V	635-889 cm/min ( 250-350 in./min )
310-370 A	1.4 mm ( .052 in. )	16 mm ( 5/8 in. )	27-30 V	889-1143 cm/min ( 350-450 in./min )

Ordering

Description

Product number

Product number: 243414067

Product number: 243414000

Product number: 243414042

Product number: 243414018

Product number: 243414034

Product number: 243414026

Documents

Fact Sheets

Coreweld 77-HS

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1.800.ESAB.123

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Coreweld 77-HS

Features & Benefits

Specifications

Ordering

Documents

Fact Sheets

Additional Documents

Need Product Help?

Product information and support line: