Lincoln Excalibur 7018 MR in 5/32 in x 14 in, packaged as a 3-pack of 10 lb easy-open cans for code-quality, all-position structural and pressure-vessel welding. Same low-hydrogen E7018 H4R classification as the rest of the Lincoln Excalibur 7018 MR family, packaged in this format for shop and field crews running this diameter.
| Manufacturer SKU | ED033839 |
|---|---|
| Diameter | 5/32 in |
| Length | 14 in |
| Package | 3-pack of 10 lb easy-open cans |
| Net weight | 10 lb each (30 lb total) |
| Approx. rods per package | ~34 per 10 lb can (102 total) |
| Recommended amperage (DC+, this diameter) | 120-220 A |
| AWS classification | AWS A5.1/A5.1M E7018 H4R |
- Brand-authorized Lincoln distributor - factory-fresh stock, full warranty pass-through
- Stocked in our US warehouse; ships within 1 business day
- Same AWS A5.1 E7018 H4R classification as every other size in the Excalibur 7018 MR line
- 30-day returns on unopened cartons
Excalibur 7018 MR is an AWS A5.1 E7018 H4R low-hydrogen iron-powder basic-coated moisture-resistant SMAW electrode. It runs on DC+ or AC in all positions except vertical down, with 70 ksi minimum tensile strength. The H4R designation delivers up to 60% less moisture pickup than competitive E7018 electrodes, reducing the risk of hydrogen-induced cracking in code-quality fabrication.
Is this the same electrode as the parent Excalibur 7018 MR grade, just in a different package?
Yes. SKU ED033839 is the same AWS A5.1 E7018 H4R low-hydrogen electrode as every other size in the Excalibur 7018 MR family. The only difference is diameter (5/32 in) and package format (3 x 10 lb easy-open cans). Classification, polarity, position, and tensile properties are identical.
How many rods are in this 3 x 10 lb easy-open cans?
Approximately ~34 per 10 lb can (102 total). Exact count varies by manufacturing tolerance but a 3 x 10 lb easy-open cans of 5/32 in Excalibur 7018 MR typically contains in this range.
What is the shelf life if I do not use them all?
Sealed Lincoln Excalibur 7018 MR cans have an indefinite shelf life when stored in their original unopened easy-open container in a dry environment. Once opened, rebake within 4 hours of exposure to ambient humidity or store in a heated rod oven at 250-300 F. Excalibur MR is moisture-resistant (H4R) and tolerates brief atmospheric exposure better than standard E7018, but rebaking restores full code performance.
What diameter should I use for common code-quality structural work?
5/32 in is well-suited for flat and horizontal fill on heavier plate, pressure vessel, and structural welds. Heavier base metal and higher deposition typically calls for 5/32 in or 3/16 in; thinner sheet and root passes use 3/32 in. See the grade page for full diameter-to-amperage guidance.
Can I mix this size with other diameters on the same job?
Yes, provided your procedure qualification (WPS) covers the range. Many shops use 3/32 in for root, 1/8 in for fill, and 5/32 in or larger for cap and out-of-position passes. All sizes share identical mechanical properties (AWS E7018 H4R) so weld metal chemistry is consistent across passes.
Do I need to rebake these after the can is opened?
Yes for code-quality work. Per AWS D1.1 and most pressure-vessel codes, low-hydrogen electrodes exposed to atmosphere beyond 4 hours must be rebaked at 500-800 F for 1-2 hours or stored in a heated rod oven at 250-300 F. Excalibur 7018 MR (H4R) provides extra moisture-pickup margin but rebaking is still required for code work.
Does this size require a special holder or stinger?
Use an electrode holder rated for the amperage range above (120-220 A). Most general-purpose stinger holders (e.g. 300-500 A class) handle 5/32 in Excalibur 7018 MR without issue. For sustained high-amperage runs on larger diameters, a 500 A or higher holder is recommended.
Is this Buy America compliant?
This specific SKU is not the Buy America variant. Lincoln offers Buy America compliant versions of Excalibur 7018 MR (e.g. ED033868, ED033869, ED033871). See the parent grade page for all available compliance variants.