Atom Arc 9018-B9
Atom Arc 9018-B9 is designed to weld the modified 9% Cr - 1% Mo steels known by the designations T91, P91 or Grade 91. These steels are designed to provide improved creep strength, toughness, fatigue, and oxidation and corrosion resistance at elevated temperatures.
Industries
- Petrochemical
- Pipeline
- Power Generation
Welding Process
- SMAW/MMA (Stick)
Typical Charpy V-Notch Properties
| Stress Relieved | |
| Impact Value | 61 ft-lb |
| Impact Value | 83 J |
| 1400 °F | |
| 760 °C | |
| 2 hr | |
| Testing Temperature | 70 °F |
| Testing Temperature | 21 °C |
Typical Tensile Properties
| Condition | Stress Relieved | Stress Relieved |
| Tensile Strength | 821 MPa (119 ksi) | 724 MPa (105 ksi) |
| Yield Strength | 711 MPa (103 ksi) | 587 MPa (85 ksi) |
| Elongation | 19 % | 25 % |
| Testing Time | 1 hr | 2 hr |
| Testing Temperature | 746 degC (1375 degF) | 760 degC (1400 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 |
| 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 |
| 130-220 A | 1.1 kg/h (3.1 lb/h) | 4.0 mm (5/32 in.) | 75 % | 140 A |
Classifications
| Classifications |
ASME SFA 5.5 : AWS A5.5 : E9018-B9 H4R |
Typical Weld Metal Analysis %
| Typical Weld Metal Analysis % | ||||||||||||||
| Al | C | Cr | Cu | Mn | Mo | N | Nb | Ni | P | S | Si | V | X-bar | |
| <.01 % | 0.10 % | 8.50 % | 0.04 % | 0.80 % | 1.00 % | 0.04 % | 0.04 % | 0.20 % | 0.008 % | 0.009 % | 0.17 % | 0.19 % | < 15 ppm | |
| 0.04 % | 0.20 % | |||||||||||||
Part Numbers and Accessories
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