300-450mm Length Electrode Welding Rod 7018
Product Overview
This Model 7018 welding electrode, available in lengths of 300–450 mm, is a high-quality low-carbon steel electrode designed specifically for professional welding applications. The E7018 welding electrode, manufactured by Ocean Welding, performs exceptionally well in a variety of welding conditions, ensuring strong and durable welds with excellent mechanical properties.
Key Features & Specifications
Technical Specifications
Brand: Ocean Welding
Type: E7018 Mild Steel Electrode
Length: 300-450mm (customizable)
Certification: ISO9001-2008, CE, SGS certified
OEM Services: Available upon reques
Product Advantages
Breakthrough in arc stability: A unique flux coating formula ensures stable burning even in humid environments, significantly reducing operational difficulty for vertical-up and overhead welding.
Enhanced deposition efficiency: Compared to conventional E7018 electrodes, the deposition rate increases by approximately 15% at the same current, saving valuable time when welding large structural components.
Strengthened crack resistance: Precise control of sulfur and phosphorus content, combined with the addition of trace alloying elements, keeps the weld metal's cold cracking sensitivity index (Pcm) below 0.20.
Applications
The E7018 welding rod is ideal for:
Petrochemical Pipeline Welding
This welding consumable performs exceptionally well in the butt welding of carbon steel pipelines with diameters of DN200 and above; its excellent molten metal fluidity ensures full penetration of the root pass, while its moderate solidification rate effectively prevents hot cracking.
Bridge Steel Structure Fabrication
For steels with a strength grade of Q345B or higher, this welding consumable provides mechanical properties that closely match those of the base metal.
Pressure Vessel Manufacturing
In the fabrication of ASME-compliant pressure vessels, the consumable's extremely low diffusible hydrogen content (≤5 ml/100 g) effectively reduces the risk of delayed cracking. When used in conjunction with appropriate preheating and heat treatment processes, the weld quality fully meets the most stringent non-destructive testing requirements.
About Lin'an Dayang Welding Material Co., Ltd.
With over 20 years of industry expertise, Lin'an Dayang Welding Material Co., Ltd. stands as one of China's leading manufacturers of welding consumables. Our commitment to quality and innovation has established us as a trusted partner in the global welding industry.
Why Choose Us?
- Professional Production Team: Experienced technicians with 20+ years in welding materials
- Advanced Manufacturing: State-of-the-art production lines for consistent quality
- Quality Assurance: Rigorous testing and quality control processes
- Global Reach: Serving customers worldwide with reliable supply chain
- Technical Support: Expert guidance and after-sales service
Packaging Details
We offer flexible packaging options to meet your specific requirements:
Standard Packaging:
Inner Box: 5kg per box
Carton: 4 inner boxes per carton (20kg total)
Pallet: 50 cartons per pallet (1000kg total)
Custom Packaging: Available according to client specifications
Delivery & Shipping Terms
Lead Time
Ready Goods: Typically available within 8-25 days
Custom Orders: Production time varies based on quantity and specifications
Shipping Terms
We support multiple international shipping terms to accommodate your logistics needs:
CIF (Cost, Insurance, and Freight)
CNF/CFR (Cost and Freight)
FOB (Free on Board)
EXW (Ex Works)
Payment Methods
We accept secure payment options:
T/T (Telegraphic Transfer)
LC (Letter of Credit)
Order Now
Enhance the performance of your welding operations with our E7018 welding electrodes. Contact us today for competitive pricing, bulk orders, or custom specifications. Our team is ready to provide technical support and ensure you receive the solution best suited to your welding needs.
Welding parameters
| Electrode diameter (mm) | Welding current (A) | Arc voltage (V) | Welding speed (cm/min) |
| 3.2 | 90-130 | 22-26 | 15-20 |
| 4.0 | 130-180 | 24-28 | 12-18 |
| 5.0 | 180-240 | 26-30 | 10-15 |
| 5.8 | 220-280 | 28-32 | 8-12 |
FAQ
Q: What are the main characteristics of E7018 welding electrodes?
A: They are low-hydrogen electrodes featuring a diffusible hydrogen content of ≤5ml/100g, excellent weld toughness, and high crack resistance, making them suitable for welding critical structures.
Q: How should I choose between the 300mm, 400mm, and 450mm lengths?
A: The 300mm length is suitable for confined spaces; the 400mm length offers the greatest versatility; and the 450mm length is ideal for long weld runs. Choose based on actual working conditions and welder preference.
Q: What should I do if the electrodes get damp?
A: If slightly damp, they can be dried at 350–400°C for 2 hours; if severely damp (e.g., coating flaking off or discoloration), it is recommended to discard them. Once opened, use promptly and store in a sealed container.
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