OE-S 2 / OP 181
Lincoln Electric Europe Welding Consumables. Lincoln Electric is a leading manufacturer of welding consumables for marine applications. The products are classified to AWS and ISO 2560 and meet DNV/ABS requirements for shipbuilding. The Excalibur 7018 MR series is particularly relevant for ship applications as it has a moisture resistance designation (H4R) with storage advantage:
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Common issues
- Moisture pickup in flux or electrode coating causing porosity or hydrogen-cracking risk in the weld
- Consumables stored in uncontrolled humidity or left uncovered after opening
- Use of expired or out-of-date consumable batches
- Consumable combination (wire/flux or wire/gas) not matching the qualified welding procedure specification (WPS)
- Contaminated or repeatedly recycled flux (for submerged-arc processes) affecting arc stability and weld quality
Inspection checklist
- Check storage conditions (heated/dry cabinet, holding ovens for low-hydrogen types) against the manufacturer's datasheet
- Check batch/lot certificates against the class-approved WPS being used
- Verify the consumable combination in use matches the qualified WPS (wire diameter, flux/gas type)
- Check expiry dates and re-baking/re-drying records for low-hydrogen or moisture-sensitive consumables
- Visual check of flux for contamination or moisture before reuse in submerged-arc welding
- Confirm welder qualification records match the process and consumable in use
Service intervals
| Consumable stock rotation (FIFO) | ongoing |
| Re-drying/baking of opened low-hydrogen consumables | per manufacturer datasheet, typically within a few hours of opening unless held in a heated cabinet |
| WPS/welder qualification renewal | per class rules, typically every 3 years or on significant process change |
Critical spares
- Stock of the same batch/type of wire and flux (or electrode) combination specified in the approved WPS for repeat repairs
- Matching flux or shielding gas for the qualified process - do not substitute a different type or brand without re-qualifying the welding procedure
- Spare holding oven/heated storage capacity for moisture-sensitive or low-hydrogen consumables
- Retained batch/lot certificates for consumables currently in use, for traceability at survey
Safety
- Welding fume exposure (manganese and other alloying elements depending on consumable type) requires ventilation and respiratory protection per the safety data sheet
- Hot work permit and fire watch required near flammable materials, coatings, or tanks that have carried flammable cargo
- Electric shock hazard from welding equipment and cables
- Arc flash and UV exposure require eye and skin protection
Class survey
Class requires welding consumables used on structural or pressure-part repairs to be class type-approved and used within a qualified WPS; consumable batch traceability records are commonly checked at survey for repairs to class-relevant structure. Note: the description on file references an 'Excalibur 7018 MR' stick electrode classification, which does not correspond to the OE-S 2 / OP 181 product on this record - that classification should not be relied on for this specific product without checking the current PPG/Lincoln Electric OE-S 2 / OP 181 datasheet.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Visual: check coating for dryness; tacky test (touch); odor test; for H4R: up to 9 h permissible at <80°F/<60% r.H. (otherwise oven/discard); document with moisture meter
Surface inspection: check coating for cracks/breaks; check color/gloss (discoloration=moisture); compare storage duration; batches >6 months dry before use; discard defective batches
Check documentation: certificate number DNV/ABS/Lloyd's on container; AWS/ISO classification (e.g. E7018 H4R M 3 YH5); review batch papers; query DNV Approval Finder; check certificate expiration date; reject batches <approval date
Etiketten sichtbar/lesbar: Chargennummer, Verfallsdatum, Lagerdatum, Lagerort, Temperatur/Feuchte-Protokoll; Materialtestzertifikate (MTR) verfügbar; Schweißprozedur (WPS) + Schweißerqualifikation (WQR) dokumentiert; Logbuch Ofen-Ein-/Auszeiten führen
View oven protocol: check achieved temperature (E7018: 450-500°C, observe tolerance); holding time from reaching nominal temperature; holding temperature ~150°C after cooling; demonstrate thermometer calibration; temperature data logger; avoid over-drying (coating breaks)
Storage conditions on site: temperature, air humidity (hygrometer), ventilation, salt spray protection; container integrity (dents/scratches=rust risk); location on ship: near engine room (<50°C ideal); seal containers after opening; compare storage duration versus expiration date
Type-general inspection and maintenance points for this equipment category — not model-specific.
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Maritime Network →DNV type approval
Verified against the DNV Approval Finder — the certificate below is issued by DNV, not by us.
- Certificate
- TAW00002K5
- Approved as
- Wire/Flux combination · Welding Consumables
- Certificate holder
- Lincoln Electric Europe B.V. (Netherlands)
- Valid until
- 2026-12-31