Lincoln E7018 H4R (IronArc 7018 MR x 14 in 5/32 in x 14 in, packaged as a 50 lb easy-open can for the applications described on the Lincoln E7018 H4R (IronArc 7018 MR x 14 family page. Same AWS A5.1/A5.1M E7018 classification as every other size in this product line, packaged in this format for shop and field crews running this diameter.
| Manufacturer SKU | ED040002 |
|---|---|
| Diameter | 5/32 in |
| Length | 14 in |
| Package | 50 lb easy-open can |
| Net weight | 50 lb |
| Approx. rods per package | ~170 rods |
| Recommended amperage (this diameter) | 120-220 A |
| AWS classification | AWS A5.1/A5.1M E7018 |
- Brand-authorized distributor - factory-fresh stock, full warranty pass-through
- Stocked in our US warehouse; ships within 1 business day
- Same AWS A5.1/A5.1M E7018 classification as every other size in the Lincoln E7018 H4R (IronArc 7018 MR x 14 line
- 30-day returns on unopened cartons
E7018 is an AWS A5.1 low-hydrogen iron-powder basic-coated SMAW electrode with 70 ksi minimum tensile strength. It runs on DC+ or AC in all positions and is the workhorse code-quality stick electrode for structural steel, pressure vessel, pipe, and shipbuilding fabrication. The low-hydrogen coating must be kept dry: opened rods exposed beyond 4 hours typically require rebaking at 500-800 F to restore full code performance per AWS D1.1.
See all sizes of Lincoln E7018 H4R (IronArc 7018 MR x 14 family
Is this the same electrode as the parent Lincoln E7018 H4R (IronArc 7018 MR x 14 grade, just in a different package?
Yes. SKU ED040002 is the same AWS A5.1/A5.1M E7018 classification as every other size in the Lincoln E7018 H4R (IronArc 7018 MR x 14 family. The only difference is diameter (5/32 in) and package format (50 lb easy-open can). Polarity, position, and tensile properties are identical to the parent grade.
How many rods are in this 50 lb easy-open can?
Approximately ~170 rods. Exact count varies with manufacturing tolerance but a 50 lb easy-open can of 5/32 in Lincoln E7018 H4R (IronArc 7018 MR x 14 typically contains in this range.
What is the shelf life if I do not use them all?
Sealed cans have an indefinite shelf life when stored unopened in a dry environment. Once opened, low-hydrogen rods exposed beyond 4 hours of atmospheric humidity should be rebaked at 500-800 F for 1-2 hours or stored in a heated rod oven at 250-300 F to restore full code performance.
What diameter should I use for common applications?
5/32 in is well-suited for flat and horizontal fill on heavier plate and structural welds. Heavier base metal and higher deposition typically calls for one diameter up; thinner sheet and root passes go one diameter down. See the parent 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 diameter range. Many shops use one diameter for root, one for fill, and one for cap. All sizes within Lincoln E7018 H4R (IronArc 7018 MR x 14 share identical mechanical properties (AWS A5.1/A5.1M E7018) 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 to restore full code performance.
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 Lincoln E7018 H4R (IronArc 7018 MR x 14 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 E7018 H4R (IronArc 7018 MR x 14 may be available in a Buy America compliant version - see the parent grade page for all available compliance variants.