Welding rod 7018
E7018 is an iron powder low hydrogen electrode for all-position welding, used for welding low carbon steel and low alloy steel. It has good all-position welding performance and can ensure welding quality and structural safety.
Product Description OF Welding rod 7018
As uaually, E7018 stick electrodes are a good choice for structural steel applications because of their smooth, stable and quiet arc, and their low spatter levels. Because these applications also require careful attention to heat input and are typically on strict deadlines, it's important to have a filler metal that gives the welding operator good control over the arc and one that will minimize the need for post-weld cleanup - any time spent reworking or cleaning welds means less time focused on gaining productivity.
These stick electrodes also offer good penetration typically designated as "medium penetration so that welding operators, can typically avoid weld defects like lack of fusion. They also offer good deposition rates, which allowed welding operators to add more weld metal into the joint in a relatively short amount of time. Adding iron power to the coating of the stick electrode is the key to this characteristic.
Other elements like manganese and silicon (both of which must be present in specific levels in all E7018 stick electrodes) also provide distinct advantages to these products. Particularly, the elements function together as deoxidizers to help weld through certain levels of dirt, debris or mill scale that can be commonly found on structural steel applications.
Finally, E7018 stick electrodes have good arc starts and restarts,helping eliminate issues like porosity when welding. If restriking is allowed, it's necessary to remove the silicon deposit that forms at the end of the stick electrode in order to initiate an arc again. Note, however, some welding codes or WPS procedures do not permit the restriking of stick electrodes.
Package details OF Welding rod 7018
1. 5kg/inner box 4 inner boxes/carton 50 cartons/pallet
2. As clients' requirement
Delivery
1. Time:Normally ready goods within 8 to 25 days.
2. Term: CIF CNF FOB EXW
Application areas
Typical uses
- High-strength structural steel welding (such as building frames, bridges, pressure vessels, pipelines).
- Scenarios with high requirements for weld toughness (such as low temperature environments, dynamic load equipment).
- Shipbuilding, heavy machinery maintenance, etc.
Applicable materials
Mainly used for low carbon steel and low alloy steel (such as ASTM A36, A572, S355, etc.).
About us
1.We are Lin an Dayang Welding Material Co., Ltd., one of leading manufacturing enterprises in China,
specialized in making consumables like welding electrodes, welding wire, for 20 years.
2.Professional production team, product line, experience technical experts who engaged in this industry
for about 20 years, We have the professional production line for welding products now.
Product picture OF Welding rod 7018
Precautions for use
Storage requirements
- Must be stored in a moisture-proof manner and placed in an insulated barrel after opening (recommended temperature 100-150℃).
- If exposed to air for more than 4 hours, it needs to be dried again.
Welding parameter recommendations
- Current range: Adjust according to the electrode diameter (such as φ3.2mm corresponds to 90-130A).
- Short arc operation is recommended to avoid overheating of the coating.
Preheating and post-heating
Preheating (usually 150-200℃) is required for welding thick plates or high carbon steel, and post-heat treatment is performed if necessary.
Mechanical properties
| Test Item | Tensile Strength Rm (MPa) | Yield Strength Rel (MPa) | Elongation A (%) | Impact Energy at -30℃ Akv (J) |
|---|---|---|---|---|
| Standard Values | ≥490 | ≥400 | ≥22 | ≥27 |
| Example | 560 | 465 | 29 | 130 |
Chemical composition
| Element | C | Mn | Si | P | S | Cr | Ni | Mo | V |
|---|---|---|---|---|---|---|---|---|---|
| Composition (%) | 0.15 max | 1.60 max | 0.75 max | 0.035 max | 0.035 max | 0.20 max | 0.30 max | 0.30 max | 0.08 max |
FAQ
Q: Does the 7018 electrode require a DC welding machine?
A: DC reverse polarity (DCEP) is preferred, but some models support AC (such as E7018-1).
Q: Can it be used for stainless steel or cast iron welding?
A: No, special welding materials (such as 309L stainless steel electrodes) must be selected.
Q: How to deal with humid environments?
A: It must be dried and kept warm, otherwise it is easy to produce pores.
how to order
| TYPE： | E7018 | E7018 | E7018 |
|---|---|---|---|
| Material： | Carbon steel welding rod | Carbon steel welding rod | Carbon steel welding rod |
| Size : | Diameter:2.0 mm, 2.5 mm, 3.2 mm, 4.0 mm, 5.0 mm, etc. | Diameter:2.0 mm, 2.5 mm, 3.2 mm, 4.0 mm, 5.0 mm, etc. | Diameter: 2.0 mm, 2.5 mm, 3.2 mm, 4.0 mm, 5.0 mm, etc. |
| Length: 300 mm, 350 mm, 400 mm, etc. | Length: 300 mm, 350 mm, 400 mm, etc. | Length: 300 mm, 350 mm, 400 mm, etc. | |
| Torelance: | (-0.04/-0.01)mm | (-0.04/-0.01)mm | (-0.04/-0.01)mm |
| Packing: | 5kg per inner box | 20kgs per outer carton box | 1 ton per pallet |
| M.O.Q: | 1ton | 1ton | 1ton |
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