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Tank Shell Plates Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

Tank shell plates are fabricated steel plates that constitute the primary containment walls of industrial tanks, designed to withstand internal pressures, external loads, and environmental conditions. They are typically rolled and welded into cylindrical or spherical shapes, with thicknesses calculated based on design pressure, material strength, and safety factors. These plates provide structural integrity and leak-tight containment for liquids, gases, or solids in various industrial applications.

Working Principle

Tank shell plates operate on the principle of membrane stress distribution, where internal pressure creates hoop stress (circumferential) and longitudinal stress along the tank axis. The plates are designed to distribute these stresses uniformly, maintaining structural stability and preventing deformation or failure under operational loads. They work in conjunction with other tank components like heads, nozzles, and supports to form a complete pressure boundary.

Materials

Carbon steel (ASTM A36, A516 Gr.70), stainless steel (304, 316), alloy steel, aluminum alloys, or composite materials depending on application requirements. Material selection considers corrosion resistance, strength, temperature tolerance, and compatibility with stored media.

Technical Parameters

Width 1500-3000 mm
Length 6000-12000 mm
Surface Finish SA 2.5 blasted or pickled
Thickness Range 6-50 mm
Weld Preparation Beveled edges as per welding procedure
Flatness Tolerance ±3 mm/m

Standards

ISO 28300, ASME BPVC Section VIII, DIN 28018, API 650

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Tank Shell Plates.

Parent Products

This component is used in the following industrial products

Tank Structure

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

View Product Details

Engineering Analysis

Risks & Mitigation

Stress corrosion cracking
Weld defects leading to leaks
Plate buckling under vacuum or external pressure
Corrosion thinning over time
Improper material selection causing contamination

FMEA Triads

Trigger: Inadequate corrosion protection
Failure: Plate thinning and eventual rupture
Mitigation: Apply protective coatings, use corrosion-resistant materials, implement regular thickness monitoring

Trigger: Poor welding quality
Failure: Weld seam cracks and leaks
Mitigation: Follow qualified welding procedures, perform non-destructive testing (RT, UT), certify welders

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Dimensional tolerances per ISO 13920, thickness tolerance ±0.3 mm for plates under 20 mm

Test Method

Ultrasonic testing for thickness verification, dye penetrant testing for surface defects, tensile and impact testing for material certification

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

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 factors determine the thickness of tank shell plates?

Plate thickness is calculated based on design pressure, material yield strength, corrosion allowance, safety factors, and applicable codes like ASME BPVC or API 650. Hydrostatic pressure from liquid height is a key consideration for storage tanks.

Can tank shell plates be repaired if damaged?

Yes, damaged plates can often be repaired by welding or patching following qualified procedures, but replacement may be required for severe corrosion, cracks, or if repairs compromise structural integrity beyond code allowances.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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.

Tank Shell Plates