Structured Manufacturing Data (2026)

Tank Structure

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Tank Structure used in the Other Transport Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Tank Structure is characterized by the integration of Tank Shell Plates and Stiffeners. In industrial production environments, manufacturers listed on CNFX commonly emphasize Marine-grade steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The structural framework and containment system of ballast tanks in marine vessels.

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Product Specifications

Technical details and manufacturing context for Tank Structure

Definition
The tank structure refers to the engineered framework, walls, and containment system that forms the physical boundaries of ballast tanks in ships and other marine vessels. It is designed to withstand hydrostatic pressure, contain ballast water, and maintain structural integrity under various loading conditions during vessel operations.
Working Principle
The tank structure provides a sealed, pressure-resistant enclosure for ballast water storage. It transfers hydrostatic and dynamic loads to the vessel's hull structure while preventing water leakage and maintaining the vessel's stability and trim through controlled ballast water management.
Common Materials
Marine-grade steel
Technical Parameters
  • Thickness of structural plates and stiffeners (mm) Standard Spec
Components / BOM
  • Tank Shell Plates Part
    Forms the primary containment walls of the tank
    Material: Marine-grade steel
  • Stiffeners Part
    Provides structural reinforcement against hydrostatic pressure
    Material: Steel profiles
  • Welded Joints Part
    Connects structural elements and ensures watertight integrity
    Material: Welding consumables

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Tank Structure.

Ballast Tank Structure Tank Framework marine ballast tank structural framework marine-grade steel tank shell plates ballast tank stiffeners and welded joints tank containment system for marine vessels ballast tank structure manufacturing specifications

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Ballast Tanks
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 0.5 bar (gauge)
flow rate: N/A (static containment)
temperature: -20°C to 80°C
slurry concentration: Up to 60% solids by weight
Media Compatibility
✓ seawater ✓ freshwater ✓ ballast sediment slurry
Unsuitable: hydrochloric acid (corrosive to structural steel)
Sizing Data Required
  • Required ballast volume (m³)
  • Vessel displacement and stability requirements
  • Structural load capacity of tank supports

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion (Internal/External)
Cause: Chemical attack from stored contents (e.g., acids, salts) or atmospheric exposure leading to wall thinning, pitting, or stress corrosion cracking, often accelerated by moisture, temperature, or coating breakdown.
Structural Fatigue or Cracking
Cause: Cyclic loading from thermal expansion/contraction, pressure fluctuations, or mechanical vibrations, leading to crack initiation and propagation at weld seams, nozzles, or base plate connections.
Maintenance Indicators
  • Visible leaks, weeping, or bulging on tank walls or seams, indicating material failure or overpressure.
  • Abnormal audible sounds like cracking, popping, or hissing, suggesting structural stress, corrosion activity, or pressure release.
Engineering Tips
  • Implement regular non-destructive testing (NDT) such as ultrasonic thickness gauging and visual inspections to monitor corrosion rates and detect early-stage defects.
  • Ensure proper cathodic protection and maintain protective coatings to prevent corrosion, and control operational parameters (e.g., temperature, pressure) within design limits to reduce stress cycles.

Compliance & Manufacturing Standards

Reference Standards
ISO 28300: Petroleum, petrochemical and natural gas industries - Shell-and-tube heat exchangers ANSI/ASME BPV Code Section VIII: Rules for Construction of Pressure Vessels DIN 28018: Vertical cylindrical steel tanks for the storage of liquids above ground - General principles
Manufacturing Precision
  • Wall thickness: +/-5% of nominal thickness
  • Circularity: Maximum deviation of 1% of nominal diameter
Quality Inspection
  • Hydrostatic Pressure Test
  • Ultrasonic Thickness Testing

Factories Producing Tank Structure

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are used in tank structures for marine ballast systems?

Tank structures for marine ballast systems are constructed from marine-grade steel, which offers superior corrosion resistance and durability in harsh marine environments.

What components are included in the BOM for a ballast tank structure?

The bill of materials includes stiffeners for structural support, tank shell plates for containment, and welded joints to ensure watertight integrity and structural stability.

How do tank structures contribute to vessel stability and safety?

Tank structures provide the essential framework for ballast systems, allowing precise weight distribution to maintain vessel stability, trim, and safety during various operating conditions.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Other Transport Equipment Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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