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ATOM ARC 8018-B8
Atom Arc 8018-B8 is designed to weld 9% Cr - 1% Mo creep resisting steels such as ASTM A213-T9 and A335-P9. These steels are used in pressure vessels and piping for high temperature service.
Features
Atom Arc 8018-B8 is designed to weld 9% Cr - 1% Mo creep resisting steels such as ASTM A213-T9 and A335-P9. These steels are used in pressure vessels and piping for high temperature service.
View large imageClassifications
Classifications/Approvals
- SFA/AWS A5.5; E8018-B8H4R
Properties
| Stress Relieved 8 hrs. @ 1275ºF (691ºC) | |
|---|---|
| Reduction in Area | 79 |
| Stress Relieved 1 hr. @ 1375ºF (746ºC) | |
| Yield Strength | 545 ksi, 98 MPa |
| Tensile Strength | 676 ksi, 18 MPa |
| Typical Charpy V-Notch Impact Properties | |
| Testing Temperature 0ºF (-18ºC) | |
| Stress Relieved 1 hr. @ 1150ºF (621ºC) | 34 J |
| Stress Relieved 1 hr. @ 1375ºF (746ºC) | 46 ft.-lbs. |
| Testing Temperature -20ºF (-29ºC) | |
| Stress Relieved 16 hrs. @ 1150ºF (621ºC) | 0.07 J |
| Typical Undiluted Weld Metal Analysis | |
| C | 0.94 % |
| Mn | 0.27 % |
| Si | 0.007 % |
| P | 0.009 % |
| S | 9 % |
| Cr | 1.1 % |
| Mo | 0.03 % |
SAW
Accessories
Depositions
| 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 % |
| 120 A | 90-160 | 2.6 lbs./hr., 1.2 kg./hr. | 71.6 % | |
| 1/8 in, 3.2 mm | 140 A | 90-160 | 2.7 lbs./hr., 1.2 kg./hr. | 70.9 % |
| 130-220 | 3.1 lbs./hr., 1.4 kg./hr. | 75 % | ||
| 5/32 in, 4.0 mm | 170 A | 130-220 | 3.8 lbs./hr., 1.7 kg./hr. | 73.5 % |
| 200 A | 200-300 | 4.9 lbs./hr., 2.2 kg./hr. | 76.4 % | |
| 3/16 in, 4.8 mm | 250 A | 200-300 | 5.4 lbs./hr., 2.4 kg./hr. | 74.6 % |
| 250-350 | 6.5 lbs./hr., 2.9 kg./hr. | 75 % | ||
| 7/32 in, 5.6 mm | 300 A | 250-350 | 7.2 lbs./hr., 3.3 kg./hr. | 74 % |
| 300-400 | 7.7 lbs./hr., 3.5 kg./hr. | 78 % | ||
| 1/4 in, 6.4 mm | 350 A | 300-400 | 8.7 lbs./hr., 3.9 kg./hr. | 77 % |
Extra Info
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.