Atom Arc 7018-B2L is an all-position low hydrogen electrode with an extra low carbon analysis and a 1% Cr - 0.5% Mo weld metal analysis for reduced cracking. These are excellent for power piping, boiler work, castings and forgings.
Atom Arc 7018-B2L is a 1 1/4 Cr - 1/2 Mo electrode with sensitivity extra low carbon content. The low carbon content in the weld metal is beneficial in reducing cracking of weldments. Atom Arc 7018-B2L is carefully engineered to produce a stable arc and good slag release when welding low-alloy steels in the categories of 0.5% Cr - 0.5% Mo, 1% Cr - 0.5% Mo, 1.25% Cr - 0.5% Mo steels. Most grades of these steels are used in power piping, boiler work, castings and forgings

| Stress Relieved 1 hr. @ 1275ºF (691ºC) | |
|---|---|
| Yield Strength | 74 ksi, 510 MPa |
| Tensile Strength | 88 ksi, 607 MPa |
| Elongation in 2" | 29 % % |
| Typical Undiluted Weld Metal Analysis | |
| C | 0.03 % |
| Mn | 0.7 % |
| Si | 0.4 % |
| P | 0.015 % |
| S | 0.016 % |
| Cr | 1.2 % |
| Mo | 0.6 % |
| Part No. | Model / Product Description | UPC |
|---|---|---|
| 255181414 | AA 7018-B2L 1/4X18X50#HS | 662303018429 |
| 255181810 | AA 7018-B2L 1/8X14X50#HS | 662303018443 |
| 255183113 | AA 7018-B2L 3/16X14X50#HS | 662303018467 |
| 255183311 | AA 7018-B2L 3/32X14X50#HS | 662303018481 |
| 255185316 | AA 7018-B2L 5/32X14X50#HS | 662303018504 |
| 255187312 | AA 7018-B2L 7/32X18X50#HS | 662303018528 |
| 255181828 | AA 7018-B2L 1/8X14X10#HS | 662303018450 |
| 255183121 | AA 7018-B2L 3/16X14X10#HS | 662303018474 |
| 255183329 | AA 7018-B2L 3/32X14X10#HS | 662303018498 |
| 255185324 | AA 7018-B2L 5/32X14X10#HS | 662303018511 |
| 255187429 | AA 7018-B2L 3/32X12X8#HS/48# | 662303031121 |
| 255181430 | AA 7018-B2L 1/8X14X10#HS XF | 662303080921 |
| 255181448 | AA 7018-B2L 1/8X14X50#HS XF | 662303080969 |
| 255181455 | AA 7018-B2L 3/16X14X10#HS XF | 662303080945 |
| 255181463 | AA 7018-B2L 3/16X14X50#HS XF | 662303080983 |
| 255181471 | AA 7018-B2L 3/32X14X10#HS XF | 662303080853 |
| 255181489 | AA 7018-B2L 3/32X14X50#HS XF | 662303080952 |
| 255181497 | AA 7018-B2L 5/32X14X10#HS XF | 662303080938 |
| 255181505 | AA 7018-B2L 5/32X14X50#HS XF | 662303080976 |
| 255181513 | AA 7018-B2L 7/32X18X50#HS XF | 662303080990 |
| Diameter | Optimal Amperage | Range Amperage | Deposition Rate | Efficiency |
|---|---|---|---|---|
| 3/32 in, 2.4 mm | 90 A | 70 - 100 | 1.7 lbs./hr., 0.8 kg./hr. | 66.3 % |
| 1/8 in, 3.2 mm | 120 A | 90 - 160 | 2.6 lbs./hr., 1.2 kg./hr. | 71.6 % |
| 140 A | 90 - 160 | 2.7 lbs./hr., 1.2 kg./hr. | 70.9 % | |
| 5/32 in, 4.0 mm | 140 A | 130 - 220 | 3.1 lbs./hr., 1.4 kg./hr. | 75 % |
| 170 A | 130 - 220 | 3.8 lbs./hr., 1.7 kg./hr. | 73.5 % | |
| 3/16 in, 4.8 mm | 200 A | 200 - 300 | 4.9 lbs./hr., 2.2 kg./hr. | 76.4 % |
| 250 A | 200 - 300 | 5.4 lbs./hr., 2.4 kg./hr. | 74.6 % | |
| 7/32 in, 5.6 mm | 250 A | 250 - 350 | 6.5 lbs./hr., 2.9 kg./hr. | 75 % |
| 300 A | 250 - 350 | 7.2 lbs./hr., 3.3 kg./hr. | 74 % | |
| 1/4 in, 6.4 mm | 300 A | 300 - 400 | 7.7 lbs./hr., 3.5 kg./hr. | 78 % |
| 350 A | 300 - 400 | 8.7 lbs./hr., 3.9 kg./hr. | 77 % |
Preheat should be used on hardenable steels to prevent the formation of a hard heat-affected zone. Preheat may also be required in welding heavy sections
All listed prices are in U.S. dollars and represent the Manufacturer's Suggested Retail Price (MSRP) for sale in the United States. Actual selling price will be determined by the Distributor. Prices are subject to change without notice.