Atom Arc 7018
Atom Arc 7018 is an all-position low hydrogen moisture resistant electrode with a deep, penetrating arc. This premium quality electrode meets a multitude of codes and welding specifications. Atom Arc 7018 was developed to weld carbon and low-alloy steels, including a variety of hardenable steels.
Industries
- Automotive
- Bridge Construction
- Civil Construction
- Industrial and General Fabrication
- Mobile Equipment
- Railcars
- Ship/Barge Building
Welding Process
- SMAW/MMA (Stick)
Typical Charpy V-Notch Properties
| Stress Relieved | |
| Impact Value | 193 ft-lb |
| Impact Value | 260 J |
| 1150 degF | |
| 621 degC | |
| 8 hr | |
| Testing Temperature | -20 degF |
| Testing Temperature | -29 degC |
Typical Tensile Properties
| Condition | As Welded | Stress Relieved |
| Reduction in Area | 75 % | 77 % |
| Tensile Strength | 540 MPa(78 ksi) | 485 MPa(70 ksi) |
| Yield Strength | 470 MPa(68 ksi) | 395 MPa(57 ksi) |
| Elongation | 30 % | 33 % |
| Testing Time | 8 hr | |
| Testing Temperature | 621 degC(1150 degF) |
Deposition Data
| Current | Deposition Rate | Diameter | Deposition Efficiency (%) | Optimal Amps |
| 130-220 A | 1.7 kg/h(3.8 lb/h) | 4.0 mm(5/32 in.) | 73.5 % | 170 A |
| 90-160 A | 1.2 kg/h(2.6 lb/h) | 3.2 mm(1/8 in.) | 71.6 % | 120 A |
| 200-300 A | 2.4 kg/h(5.4 lb/h) | 4.8 mm(3/16 in.) | 74.6 % | 250 A |
| 200-300 A | 2.2 kg/h(4.9 lb/h) | 4.8 mm(3/16 in.) | 76.4 % | 200 A |
| 70-100 A | 0.8 kg/h(1.7 lb/h) | 2.4 mm(3/32 in.) | 66.3 % | 90 A |
| 90-160 A | 1.2 kg/h(2.7 lb/h) | 3.2 mm(1/8 in.) | 70.9 % | 140 A |
| 250-350 A | 3.3 kg/h(7.2 lb/h) | 5.6 mm(7/32 in.) | 74 % | 300 A |
| 250-350 A | 2.9 kg/h(6.5 lb/h) | 5.6 mm(7/32 in.) | 75 % | 250 A |
| 300-400 A | 3.5 kg/h(7.7 lb/h) | 6.4 mm(1/4 in.) | 78 % | 300 A |
| 300-400 A | 3.9 kg/h(8.7 lb/h) | 6.4 mm(1/4 in.) | 77 % | 350 A |
| 130-220 A | 1.4 kg/h(3.1 lb/h) | 4.0 mm(5/32 in.) | 75 % | 140 A |
Classifications
| Classifications |
ASME SFA 5.1 : AWS A5.1 : E7018 H4R |
Approvals
| Approvals |
ABS 3Y/AWS A5.1: E7018 CWB CSA W48 E4918 DNV 3Y(H10) LR 3m,3Ym(H10) MIL-E-22200/1 MIL-7018 |
| Approvals are based on factory location. Please contact ESAB for more information. |
Consumable Characteristics
| Coating Type | Low-hydrogen iron powder |
| 0 | |
| Welding Current | AC or DC+ |
Typical Weld Metal Analysis %
| Typical Weld Metal Analysis % | ||||||||||||||
| C | Mn | P | S | Si | ||||||||||
| 0.045 % | 1.10 % | 0.015 % | 0.014 % | 0.40 % | ||||||||||
| 0.05 % | 0.40 % | |||||||||||||
How to purchase Atom Arc 7018
We're as eager to put ESAB gear in your hands as you are to have it. That's why we sell our products with distributors who'll give you the attention, support, and value you deserve. Their expertise will make sure that you're as happy with the purchasing process as we know you'll be with your purchase itself.
To make things even easier, we've developed the online shopping list below. As you browse our site, you'll be able to click on any product to have it added to this easy reference sheet. And when you're done, you can send the list to yourself or print it out and bring it in to the distributor of your choice.
To find an ESAB distributor, just use the distributor locator tool featured on every page of our site. Alternatively, you can call our support line at +361 382 1235 and we'll point you in the right direction.