Atom Arc 7018-SR

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Atom Arc 7018-SR

Atom Arc 7018-SR is an all-position low hydrogen electrode. The moisture resistance and welder appeal is similar to other Atom Arc electrodes. Atom Arc 7018-SR was developed to maintain 70 ksi (483 MPa) tensile strength after 16 hours stress relieving.

Atom Arc 7018-SR

Where To Buy Request Information

Industries

Mobile Equipment
Power Generation
Civil Construction
Industrial and General Fabrication

Process

SMAW/MMA (Stick)

Welding Invented

When our founder Oscar Kjellberg developed the world's first coated welding electrode in 1904, he launched a company whose innovation and uncompromising standards have helped create the history of welding itself. This legacy continues in the quality, performance, and continuous development of the mild steel welding electrodes we make today.

Consistent Performance and Quality, Every Time

Performance is still what sets ESAB covered electrodes apart. No matter the job at hand, with ESAB mild steel and low hydrogen electrodes you are assured of good penetration, consistent mechanical properties, and X-ray quality welds from batch to batch.

Setting the Standard in Covered Electrodes

ESAB covered electrodes exceed industry criteria for low moisture pick up (moisture pick up 0 to 1000°C < 0.4 after 9 hours at 274°C, 80% HR). You can trust ESAB low hydrogen and mild steel electrodes to deliver tough mechanical properties in high or low temperature environments, high humidity worksites, or the most challenging positional welding projects. Plus, their easy-to-use nature make them a simple choice for welders of all skill levels.

Specifications

Specifications
Classifications	ASME SFA 5.1 : E7018H4R AWS A5.1 : E7018H4R
Approvals	CWB : E4918-H4
Industry	Mobile Equipment Power Generation Civil Construction Industrial and General Fabrication

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

Welding Current	AC, DC+
Diffusible Hydrogen	< 4.0 ml/100g
Alloy Type	Carbon Manganese

Typical Tensile Properties
Condition	Yield Strength	Tensile Strength	Elongation
Stress Relieved 16 hour(s) 621 °C ( 1150 °F )	477 MPa ( 69 ksi )	563 MPa ( 82 ksi )	30 %
Stress Relieved 8 hour(s) 621 °C ( 1150 °F )	433 MPa ( 63 ksi )	521 MPa ( 76 ksi )	33 %
Stress Relieved 20 hour(s) 621 °C ( 1150 °F )	459 MPa ( 67 ksi )	551 MPa ( 80 ksi )	31 %
Stress Relieved 24 hour(s) 621 °C ( 1150 °F )	455 MPa ( 66 ksi )	547 MPa ( 79 ksi )	31 %
As Welded	475 MPa ( 69 ksi )	557 MPa ( 81 ksi )	29.5 %

Typical Charpy V-Notch Properties
Condition	Testing Temperature	Impact Value
Stress Relieved 16 hour(s) 621 °C ( 1150 °F )	-30 °C ( -22 °F )	179 J ( 132 ft-lb )
Stress Relieved 8 hour(s) 621 °C ( 1150 °F )	-30 °C ( -22 °F )	210 J ( 155 ft-lb )
Stress Relieved 20 hour(s) 621 °C ( 1150 °F )	-30 °C ( -22 °F )	208 J ( 154 ft-lb )
Stress Relieved 24 hour(s) 621 °C ( 1150 °F )	-30 °C ( -22 °F )	216 J ( 160 ft-lb )
As Welded	-30 °C ( -22 °F )	163 J ( 121 ft-lb )
Stress Relieved 16 hour(s) 621 °C ( 1150 °F )	-46 °C ( -51 °F )	115 J ( 85 ft-lb )

Typical Weld Metal Analysis %
C	Mn	Si	S	P	Mo
0.06	1.30	0.30	0.014	0.014	0.10

Deposition Data
Diameter	Current	Voltage	Deposition Efficiency (%)	Burn-off Time/Electrode	Deposition Rate @ 90% I max
2.4 x 356 mm ( 3/32 x 14.0 in. )	70-110 A	23.2 V	69.01 %	60 sec	0.92 kg/h ( 2.0 lbs/h )
3.2 x 356 mm ( 1/8 x 14.0 in. )	90-160 A	23.9 V	72.23 %	70 sec	1.36 kg/h ( 3.0 lbs/h )
4.0 x 356 mm ( 5/32 x 14.0 in. )	130-220 A	24.3 V	72.06 %	75 sec	1.89 kg/h ( 4.2 lbs/h )
4.8 x 356 mm ( 3/16 x 14.0 in. )	200-300 A	24.3 V	71.04 %	74 sec	2.53 kg/h ( 5.6 lbs/h )

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Description

Product number

Product number: 255325011

Product number: 255325003

Product number: 255325029

Product number: 255325060

Product number: 255325078

Product number: 255325011-21

Product number: 255325003-21

Product number: 255325029-21

Product number: 255325037-21

Product number: 255325037

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Atom Arc 7018-SR

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Atom Arc 7018-SR

Atom Arc 7018-SR

Atom Arc 7018-SR

Features & Benefits

Specifications

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Fact Sheets

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