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Brand: Böhler Welding
Böhler FOX EV 70 E9018-G NiMo High-Strength Electrode
Description
E9018-G NiMo electrode for 550 MPa class fine-grained steel
The Böhler FOX EV 70 is a basic-coated, Mo-Ni alloyed stick electrode with high ductility and crack resistance for high-strength fine-grained steels. Böhler Welding lists it as EN ISO 18275-A E 55 6 1NiMo B 4 2 H5 and AWS A5.5 E9018-G H4R (also E9018-D1 H4R, modified), for service temperatures between -60 °C and +350 °C. Metal recovery is about 115 %, handling is easy in all positions except vertical-down, and the coating is moisture resistant with a very low hydrogen content below 4 ml per 100 g weld metal.
Technical specifications
| Parameter | Specification |
|---|---|
| EN ISO classification | 18275-A E 55 6 1NiMo B 4 2 H5; 18275-B E6218-G A H5 |
| AWS classification | A5.5 / SFA-5.5 E9018-G H4R; E9018-D1 H4R (mod.); A5.5M E6218-G H4R; E6218-D1 H4R (mod.) |
| Typical analysis, wt % | C 0.04; Si 0.3; Mn 1.2; Ni 0.9; Mo 0.4 |
| Yield strength Rp0.2, as welded | 590 MPa typical (minimum 550) |
| Tensile strength Rm, as welded | 670 MPa typical (620 to 780) |
| Elongation A (L0=5d0) | 24 % typical (minimum 18) |
| Impact energy ISO-V, as welded | 160 J at 20 °C; 70 J at -60 °C (minimum 47 J) |
| Stress relieved 580 °C / 2 h | Yield 590 MPa; tensile 670 MPa; elongation 24 %; 130 J at 20 °C |
| Polarity | DC+ |
| Sizes and current | 2.5 x 350 mm: 80 to 100 A; 3.2 x 350 mm: 100 to 140 A; 4.0 x 450 mm: 140 to 180 A; 5.0 x 450 mm: 190 to 230 A |
| Redrying, if necessary | 300 to 350 °C, minimum 2 h |
| Approvals | TÜV (00112), CE |
| Data sheet edition | 03/2023 |
Base materials and use
The data sheet names S460N, S460M, S460NL, S460ML, S460Q to S555Q, S460QL to S550QL1, P460N to P460NL2, L415NB, L415MB to L555MB and L415QB to L555QB, the Böhler-voestalpine alform 500 M and 550 M and aldur 500 Q and 550 Q grades, 20MnMoNi4-5, 15NiCuMoNb5-6-4, and ASTM A 572 Gr. 65, A 633 Gr. E, A 738 Gr. A, A 852 and API 5L X60 to X80 including the Q-treated variants. Typical jobs are crane and mobile-equipment structures, pressure-vessel nozzles and heavy fabrications in the 500 to 550 MPa yield class. For the next strength class up, see the ; for conventional mild steel and fine-grain up to 60 ksi the
is the matching choice.| Related Böhler Welding electrode | Classification (AWS A5.1 / A5.5 / A5.4) | Typical use |
|---|---|---|
| FOX EV 50 | E7018-1 H4R | Mild and fine-grain steel, boiler, tank and offshore work |
| FOX EV 85 | E11018-G H4R | Quenched and tempered steel up to 690 MPa yield |
| FOX CM 2 Kb | E9018-B3 H4R | 2.25 % Cr, 1 % Mo refinery and power-plant steel |
| FOX NiMo | E10018-D2 | Cast steel, valves and oil tools |
Handling and what to confirm
Preheat, interpass temperature and post-weld heat treatment are chosen for the base metal, not for the electrode, as the data sheet states. Keep the packs sealed and redry only if moisture has been picked up. When ordering, confirm the plate grade and thickness, the toughness temperature and test condition the code asks for, the diameters and lengths in millimetres, and whether TÜV or other certificates are needed with the delivery.
Documents and quotation
This listing includes the Böhler Welding data sheet for FOX EV 70. See welding electrodes for related consumables. For an offer please give the dimensions, packaging, quantity, material to be welded and the inspection certificate type.
Datasheets & Documents
- Datasheet Böhler Welding FOX EV 70 stick electrode data sheet (03/2023) Download
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About brand
Böhler Welding is the welding consumables brand of voestalpine Böhler Welding, part of the voestalpine group, with a portfolio that covers stick electrodes, TIG rods, solid wires, gas-shielded and self-shielded flux-cored wires and submerged-arc wires and fluxes. The company states more than 100 years of experience. Seven Star LLC, an independent supplier in Muscat, lists Böhler Welding consumables and welding machines, including pipeline electrodes, and sources Böhler Welding consumables for fabricators and pipeline contractors.
Böhler Welding product groups
Beyond the consumables above, Böhler Welding lists strip cladding, wire arc additive manufacturing, metal powders, arc spraying cored wires, ceramic weld backing, brazing consumables and welding automation such as orbital welding and collaborative robots. The pipeline range includes cellulosic FOX CEL electrodes and basic vertical-down FOX BVD electrodes for large-diameter line pipe.
Ordering Böhler Welding consumables: what we need
Give the product name, the AWS or EN classification, the diameter and length, and the packaging you need. For pipeline electrodes also state the pipe grade, wall thickness, welding position and whether sour-service test values are required, because the Böhler Welding data sheets note that some test values are available on request.
Related products
Frequently Asked Questions
How is FOX EV 70 classified?
EN ISO 18275-A E 55 6 1NiMo B 4 2 H5 and AWS A5.5 E9018-G H4R (also E9018-D1 H4R, modified).
Which polarity does it use?
DC positive.
What impact energy does the data sheet give?
160 J typical at 20 °C and 70 J typical at -60 °C, with a minimum of 47 J, as welded.
What redrying is stated?
300 to 350 °C for at least 2 hours, if necessary.
Which approvals are printed?
TÜV (00112) and CE.
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