აგვ . 04, 2025 01:20 Back to list

E7018 Welding Rods: Premium Low Hydrogen Electrodes

The demand for advanced welding consumables continues to rise, especially in industries like petrochemical, power generation, construction, and shipbuilding. Among thousands of electrodes, the e7018 welding electrode – supported by standards such as AWS E7018 and with variants like e7018 1 welding rod – stands as an industry pillar for its unmatched reliability, mechanical strength, and performance in critical application environments.

Customize E7018 Welding ELECTRODE RODS – AWS E7018 Standard

Industry Overview & Market Insights – e7018 welding electrode Trends

According to the Grand View Research 2023 Report, the global welding consumables market was valued at USD 13.5 billion in 2022, with low-hydrogen stick electrodes (like E7018) contributing over 28% of the consumable demand. Their ongoing adoption in infrastructure upgrades, energy sector expansions, and shipbuilding propels the growth. The integration of automated welding lines and stricter industrial compliance (e.g., ISO 2560, ANSI/AWS A5.1 standards) further consolidates the reputation of E7018 as an engineered solution.

Technical Specifications: What Sets E7018 Welding Electrode Apart?

Parameter	E7018 (Standard AWS)	Customize E7018 Welding ELECTRODE RODS	E7018-1 (High Toughness Variant)
Diameter (mm)	2.5, 3.2, 4.0, 5.0	2.0, 2.5, 3.2, 4.0, 5.0	2.5, 3.2, 4.0
Length (mm)	300, 350, 400	300, 350, 400, customizable	350, 400
Welding Current (A)	80-210 (depending on diameter)	70-240 (extra fine tuning)	75-220
Mechanical Strength (MPa)	≥490	≥510	≥520
Impact Toughness (J at -30°C)	≥ 27	≥ 34	≥ 47
Coating Type	Low-Hydrogen, Iron Powder	Refined low-hydrogen, corrosion-resistant	High-toughness, moisture resistant
Applicable Standard	AWS A5.1, ISO 2560	AWS A5.1, ISO 2560-B, ISO 9001:2015	AWS A5.1, EN ISO 2560-A

AWS E7018 Welding Electrode Rod Surface Detail

Manufacturing Process of E7018 Welding Electrode: Step-by-Step Flow

Process Notes: Every stage is controlled under ISO 9001:2015 and AWS A5.1 for mechanical reliability and consistent hydrogen diffusion performance.

Material Highlights & Testing Standards

Steel Core Material: Premium low-carbon steel; impurity-controlled, tensile ≥ 510MPa.
Coating: Low-hydrogen, high-adhesion mineral binder; special silicate matrix enhances slag removal.
Tested to: ISO 2560, AWS A5.1, ANSI Z49.1 - passing X-ray, mechanical (tensile, impact), and chemical composition analyses.
Longevity/Service Cycle: Up to 2x standard E6013 rods (Field feedback, 2023: structure welds remain defect-free for 10+ years in power plants).
Industries Served: Petrochemical, offshore, shipbuilding, bridge construction, pressure vessel, boiler manufacturing, municipal pipeline projects.

e7018 1 Welding Rod – Typical Packaging for Industrial Supply

Visual Data Insights

490 Std E7018

510 Customize

520 E7018-1

Petrochemical 29%

Power/Boiler Plants 26%

Pipeline/Construction 22%

Marine/Shipbuilding 23%

Impact Toughness (J) vs. Temperature (°C) for Customize E7018 Welding Electrodes

Technical Advantages of Customize E7018 Welding ELECTRODE RODS

Superior Mechanical Strength: Enhanced alloying produces welds with yield strength ≥ 510MPa and impact toughness up to 53J (-30°C).
Consistent Low Hydrogen Content: Controlled baking and packaging processes ensure ≤0.6% hydrogen, mitigating hydrogen-induced cracking (HIC).
Anti-Corrosion & Weather Resistance: Special silicate/ferroalloy blend extends weld life in high-humidity or marine environments.
Excellent Slag Removal: Advanced coating formula offers easy slag detach and smooth bead appearance, lowering post-weld labor cost by ~13% (industry average – 2023).
Superior Arc Stability: Reliable for both AC and DC polarity, minimizing spatter and ensuring smooth, porosity-free welds.
Certification: Conforms to ISO 9001:2015, ISO 2560, AWS A5.1; extensive third-party lab testing.

Application of e7018 welding electrode in Petrochemical Pipeline

Manufacturer Comparison Table—How Customize E7018 Stands Out

Brand/Manufacturer	Main Standard	Certifications	Tensile Strength (MPa)	Special Feature	Support & Customization
Lincoln Electric	AWS E7018	ISO 2560, UL	≥490	Universal stick; all-positional	Limited
ESAB	AWS E7018-1	ISO 2560	≥520	High ductility	Yes
SteelToolsChina (Customize)	AWS E7018, ISO 2560	ISO 9001:2015, 3rd party	≥510	Fine-tuned alloy formula, anti-corrosion, custom sizes	Full OEM/ODM

Bulk Customization of e7018 welding electrode rods for Major Infrastructure Project

Customization & OEM Solutions

Diameter: 2.0–5.0mm (custom alloys, dual-coating on request for extended shelf life in marine/overseas projects)
Length: 250–450mm (customized as per site/automatic line requirements)
Packaging: Moisture-proof vacuum packs; private labeling available
Alloying Options: Nickel, Mo, Cr-Mo, targeted for cryogenic, high-temperature and sour service
Export Support: Full documentation: COC, MSDS, EN10204 3.1 Mill Test Certificates

Application Scenarios: Real-World Performance

Case 1 - Offshore Oil Platform Welds (2023, S. China Sea):
Challenge: Strong wind, salty mist, and high humidity.
Solution: Custom e7018 welding electrode rods with anti-corrosion coating.
Result: NDT X-ray inspection passed 100%/batch, less than 0.1% porosity rate (vs. 0.4% for generic rods).

Case 2 – LNG Storage Tank (Yamal, Russia, 2022):
Challenge: -35°C cryogenic temperature and thick plates.
Solution: E7018-1 variant for high impact toughness.
Result: Impact test >40J at -30°C; enhanced crack resistance; maintenance-free for 3+ years.

Case 3 – Metro Tunnel Construction (Kolkata, India, 2022):
Challenge: Variable soil humidity; major leak risks.
Solution: Customize E7018 rods with moisture-resistant formula.
Result: Seamless pass on hydraulic pressure weld test, 21% reduction in on-field weld repairs.

Certification & Authority

Tested & Certified by ISO 9001:2015, AWS A5.1, SGS, BV Laboratories
Cooperative Projects with CNOC, Dongfang Electric, ABB Power, CHALCO, Sinopec, Korea Shipbuilding.
20+ Years of OEM/ODM export experience, serving 60+ countries.
Full compliance with ISO 2560 and AWS A5.1.

FAQ on e7018 welding electrode (AWS, Custom, Application)

1. What is the typical composition of e7018 welding electrode coating?

E7018 coatings use a blend of low-hydrogen compounds (calcium carbonate, iron powder, silicate binders), with trace Si, Mn, and Ti to enhance slag quality and weld fluidity.

2. Which standards must aws e7018 welding electrode products meet?

AWS A5.1, ISO 2560, and regional codes (e.g., EN ISO 2560-A for EU). All mechanical and chemical tests must pass X-ray, tensile & bend specifications per these standards.

3. What is the optimal storage and re-baking recommendation?

Store at <60%RH, 5-25°C. Re-bake at 300–350°C for 1 hour before use, especially critical for power plants & pressure vessel projects to limit hydrogen contamination.

4. Can I use e7018 1 welding rod for low-temperature applications?

Yes. E7018-1 offers improved low-temperature impact toughness (≥ 47J at -30°C) ideal for cryogenic/LNG, arctic, or sub-zero maintenance jobs.

5. What is the delivery cycle and warranty?

Normal delivery: 7–18 days (OEM: up to 25 days). All products include 12-month weldability warranty, with post-sale technical support, failure investigation, and sample analysis.

6. How can I request customized diameter or alloy (OEM/ODM)?

Share application/standard, expected environment (temp/humidity/type of steel), and target codes. After sample confirmation, the custom batch is locked for repeat orders.

7. What makes customize e7018 welding electrode rods better for corrosion resistance?

Proprietary alloy in the low-hydrogen coating + anti-humidity packaging significantly reduce atmospheric and liquid corrosion risks (proven in marine, desalination, and chemical projects).

Delivery, Warranty & Support

Lead Time: 7-18 days from PO confirmation; express production for urgent projects.
Warranty: 12 months for manufacturing/weld defects. Technical consultation & on-site support available.
After-Sale: Weld troubleshooting with NDT, sample archiving, and root-cause analysis reports.
Global Logistics: FCA/FOB/CIF/DDU; export to 60+ nations; all packaging with moisture/vibration protection.

Why Choose Customize E7018 Welding ELECTRODE RODS?

Compliant with the strictest global standards (AWS/ISO/ANSI), ensuring reliability for critical infrastructure, energy, and marine projects.
Technical support is handled by AWS professional engineers, with full data traceability and customized manufacturing.
Proven track record (20+ years) and continuous investment in R&D for optimized welding consumables.
Competitive pricing and fast turn-around for custom orders. All e7018 welding electrode shipments covered by standard and extended warranty.

References & Further Reading

"Advances in Low-Hydrogen Electrodes," Welding Journal, November 2007.
"Welding Consumables Market Size," Grand View Research, 2023.
Technical thread on electrode composition & selection: AWS Welding Forum
"ISO 2560:2021 Welding consumables — Covered electrodes for manual metal arc welding of non-alloy and fine grain steels", ISO Official
"E7018 Electrode Testing—Hydrogen Diffusivity & Impact Toughness": Welding & NDT Blog

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