Shijiazhuang Zhengzhong Technology Co.,Ltd(Center Enamel) is a premier manufacturer of high-performance Welded Carbon Steel Light Fuel Oil Storage Tanks engineered to API 650, API 620, and AWWA D100 standards. Utilizing ASTM A36 or A516 Grade 70 steel, our welded steel tanks feature automated Submerged Arc Welding (SAW) and NACE-compliant anticorrosive coatings. These systems provide zero-leak containment and a 30+ year maintenance-free lifecycle for diesel, kerosene, and aviation fuel storage globally.
The structural reliability of a fuel tank depends entirely on the quality of its fusion. Center Enamel adheres to the industry's most stringent welding protocols to ensure every seam is as strong as the parent metal.
● Certified Procedures: Our welding processes and operators are certified according to AWS (American Welding Society) and ASME Section IX standards.
● Non-Destructive Testing (NDT) Suite: To guarantee a 100% leak-proof vessel, we employ:
○ Radiographic Testing (RT): Conducted on butt-welded shell seams to verify internal weld quality.
○ Ultrasonic Testing (UT): Used for volumetric inspection of critical joints and plate thickness.
○ Vacuum Box Testing: Applied to all floor plate seams to ensure the primary containment is bubble-tight.
○ Dye Penetrant Inspection (DPI): Used for surface-breaking defects in nozzle-to-shell welds.
Light fuel oils like diesel and jet fuel require pristine environments. Our multi-stage coating process prevents internal product contamination and external atmospheric degradation.
● NACE Surface Preparation: All steel surfaces undergo abrasive blast cleaning to SSPC-SP10/NACE No. 2 (Near-White Blast Cleaning) to ensure a 50–75 micron anchor profile.
● Internal Lining Systems: We utilize Fusion Bonded Epoxy (FBE), a thermoset polymer that provides a chemically resistant barrier against hydrocarbon degradation.
● External Defense: High-solids polyurethane topcoats provide superior UV resistance and gloss retention in extreme climates.
Our tanks are site-specific engineered structures designed to withstand the most severe environmental stresses according to ASCE 7.
● High-Wind Resilience: Engineered to remain structurally sound in hurricane-prone regions, withstanding wind speeds up to 150 mph (240 km/h).
● Seismic Engineering: For high-activity zones, we incorporate advanced seismic anchorage and thickened annular bottom plates to meet specific Seismic Design Category (SDC) requirements.
In the energy sector, the choice between steel and concrete defines the facility’s risk profile.
Feature | Welded Carbon Steel (Center Enamel) | Reinforced Concrete Tanks |
Permeability | Zero: Non-porous metal; 100% leak-proof. | Porous: Requires expensive membranes to prevent seepage. |
Seismic Ductility | Superior: Ductile steel absorbs energy; resists cracking. | Brittle: Prone to hairline cracking and structural failure. |
Installation Speed | Fast: Prefabricated panels and automated welding. | Slow: Requires long curing times and extensive formwork. |
Compliance | API 650 / API 620: Specific petroleum codes. | ACI 350: General environmental engineering codes. |
We design and test every unit in strict accordance with international benchmarks to simplify your facility's permitting and insurance processes.
● API 650 & 620: The non-negotiable standards for professional oil storage, ensuring structural integrity against hydrostatic head and vapor pressure.
● NFPA 30 & 31: Compliance with fire safety codes for flammable and combustible liquids, including emergency venting and spill containment.
● ISO 9001:2015: Our quality management system ensures every phase—from procurement to NDT—is documented and auditable.
Q: Why choose welded carbon steel for light fuel oil storage?
A: It offers maximum structural integrity and leak prevention. Continuous fusion welds provide a seamless barrier essential for the high-volatility nature of light fuel oils like diesel and kerosene.
Q: How does Center Enamel prevent corrosion in fuel oil tanks?
A: We use a dual-protection strategy: high-grade ASTM A36 steel combined with NACE-standard surface preparation and high-performance FBE epoxy linings.
Q: Can these tanks be customized for extreme environments?
A: Yes. Our engineering team designs tanks to meet specific local codes for seismic activity, high wind loads, and extreme temperature fluctuations according to ASCE 7 standards.
