OK Flux 429
OK Flux 429 is a neutral, bonded flux intended for butt and fillet welding of carbon and low alloy steel plate. It combines good as welded and stress relieved mechanical properties with excellent performance. Its slag is generally self peeling, even in tight, narrow groove butt welds. It provides moderate tolerance of rust and mill scale. OK Flux 429 is used in offshore oil rig, bridge, ship, pressure vessel, and structural fabrication. It will operate with DC and AC, single and multiwire systems at currents up to 1000 amps.
Industries
- Bridge Construction
- Industrial and General Fabrication
- Mobile Equipment
- Pipeline
- Power Generation
- Pressure Vessels
- Process
- Ship and Offshore Yards
- Ship/Barge Building
- Structural Steel Fabrication
Welding Process
- SAW - Submerged Arc Welding
Classifications
Classifications |
AWS A5.17 : F7P4-EM14K AWS A5.17 : F7A2-EM14K ASME SFA 5.17 : ASME SFA 5.23 : AWS A5.17 : F7A2-EM12K AWS A5.17 : F6P4-EM12K AWS A5.17 : F7A2-EM13K AWS A5.17 : F7A4-EH12K AWS A5.23 : F8A2-EA1-A2 AWS A5.23 : F8P2-EA1-A2 AWS A5.23 : F8A2-EA2-A3 AWS A5.23 : F8P0-EA2-A3 AWS A5.23 : F9A4-ENi1K-Ni1 AWS A5.23 : F9A4-ENi14-Ni4 AWS A5.23 : F8P4-ENi4-Ni4 |
Approvals
Approvals |
CWB AWS A5.28 F49A4-ENi1K-Ni1-H8 CWB CSA W48 F49A3-EM12K (H8) |
Approvals are based on factory location. Please contact ESAB for more information. |
Classifications
Wire | AWS/EN | AWS - As Welded | AWS - PWHT |
Spoolarc ENi4 | AWS A5.23: ENi4 | F9A4-ENi4 Ni4 | F8P4-ENi4-ENi4 |
Spoolarc 81 | AWS A5.17: EM12K | F7A2-EM12K | F6P4-EM12K |
Spoolarc 75 | AWS A5.23: ENi1K | F8A4-ENi1K-Ni1 | |
Spoolarc 53 | AWS A5.17: EH12K | F7A4-EH12K | |
Spoolarc 29S | AWS A5.17: EM13K | F7A2-EM13K | |
Spoolarc 71 | AWS A5.17: EM14K | F7A2-EM14K | F7P4-EM14K |
Typical Mechanical Properties
Combined with Wire | Condition | Yield Strength | Tensile Strength | Charpy V-Notch | Elongation |
Spoolarc 29S | As Welded null | 460 MPa (67 ksi) |
570 MPa (83 ksi) |
42 J @ -29°C, (38 ft-lb @ -20 °F) |
27 % |
Spoolarc 53 | As Welded null | 490 MPa (71 ksi) |
585 MPa (85 ksi) |
52 J @ -40°C, (30 ft-lb @ -40 °F) |
28 % |
Spoolarc 71 | As Welded null | 475 MPa (69 ksi) |
565 MPa (82 ksi) |
60 J @ -40°C, (44 ft-lb @ -40 °F) |
30 % |
Spoolarc 71 | Stress Relieved 1 hr @ 621C (1150F) | 430 MPa (63 ksi) |
525 MPa (76 ksi) |
60 J @ -29°C, (44 ft-lb @ -20 °F) |
32 % |
Spoolarc 75 | As Welded null | 505 MPa (73 ksi) |
595 MPa (86 ksi) |
54 J @ -40°C, (40 ft-lb @ -40 °F) |
28 % |
Spoolarc 81 | As Welded null | 455 MPa (66 ksi) |
545 MPa (79 ksi) |
65 J @ -29°C, (48 ft-lb @ -20 °F) |
26 % |
Spoolarc 81 | Stress Relieved 1 hr @ 621C (1150F) | 415 MPa (60 ksi) |
515 MPa (75 ksi) |
68 J @ -40°C, (50 ft-lb @ -40 °F) |
30 % |
Spoolarc ENi4 | As Welded null | 565 MPa (82 ksi) |
640 MPa (93 ksi) |
60 J @ -40°C, (44 ft-lb @ -40 °F) |
25 % |
Spoolarc ENi4 | Stress Relieved 1 hr @ 621C (1150F) | 530 MPa (77 ksi) |
615 MPa (89 ksi) |
33 J @ -40°C, (24 ft-lb @ -40 °F) |
26 % |
Typical Weld Metal Analysis %
Typical Weld Metal Analysis % | ||||||||||||||
C | Mn | Mo | Ni | P | S | Si | ||||||||
Spoolarc 29S | ||||||||||||||
0.07 % | 1.70 % | - | - | 0.020 % | 0.012 % | 0.70 % | ||||||||
Spoolarc 53 | ||||||||||||||
0.06 % | 1.80 % | - | - | 0.026 % | 0.010 % | 0.50 % | ||||||||
Spoolarc 71 | ||||||||||||||
0.06 % | 1.58 % | - | - | 0.018 % | 0.009 % | 0.58 % | ||||||||
Spoolarc 75 | ||||||||||||||
0.05 % | 1.50 % | - | 0.80 % | 0.018 % | 0.012 % | 0.60 % | ||||||||
Spoolarc 81 | ||||||||||||||
0.06 % | 1.40 % | - | - | 0.020 % | 0.015 % | 0.45 % | ||||||||
Spoolarc ENi4 | ||||||||||||||
0.06 % | 1.30 % | 0.15 % | 1.79 % | 0.021 % | 0.009 % | 0.40 % |
Part Numbers and Accessories
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