Structured Manufacturing Data (2026)

Pressure Vessel Quality Steel Plate

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Pressure Vessel Quality Steel Plate used in the Manufacture of Tanks, Reservoirs and Containers of Metal sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Pressure Vessel Quality Steel Plate is characterized by the integration of Steel Alloy Matrix and Grain Structure. In industrial production environments, manufacturers listed on CNFX commonly emphasize Carbon Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Specialized steel plate manufactured for constructing metal pressure vessels and tanks

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Product Specifications

Technical details and manufacturing context for Pressure Vessel Quality Steel Plate

Definition
Pressure Vessel Quality (PVQ) steel plate is a semi-finished industrial material specifically engineered for fabricating metal tanks, reservoirs, and pressure containers. It undergoes stringent manufacturing controls and testing to ensure exceptional mechanical properties, weldability, and resistance to internal pressures and corrosive environments. This material is essential for constructing storage tanks for chemicals, petroleum products, liquefied gases, and industrial process vessels where structural integrity under pressure is critical. Its production follows rigorous quality standards to guarantee reliability in demanding applications.
Working Principle
Provides the structural shell material that contains internal pressure through its high strength, ductility, and fracture toughness, distributing stress loads across the vessel walls.
Common Materials
Carbon Steel, Low-Alloy Steel
Technical Parameters
  • Minimum yield strength at room temperature (MPa) Customizable
  • Charpy V-notch impact energy at specified temperature (J) Customizable
  • Ultimate tensile strength range (MPa) Customizable
Components / BOM
  • Steel Alloy Matrix Part
    Primary structural material providing strength and toughness
    Material: Iron-carbon alloy with controlled manganese, silicon, and microalloying elements
  • Grain Structure Part
    Determines mechanical properties and fracture resistance
    Material: Fine-grained ferrite-pearlite microstructure
  • Surface Scale Optional Part
    Oxide layer formed during hot rolling
    Material: Iron oxides (mill scale)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pressure Vessel Quality Steel Plate.

PVQ Steel Plate Pressure Vessel Steel Tank Quality Steel Boiler Quality Plate carbon steel pressure vessel plate low-alloy steel tank plate pressure vessel quality steel thickness impact test temperature steel plate metal reservoir construction steel

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 1000 psi (design dependent, ASME BPVC Section VIII Div. 1 compliant)
other spec: Minimum yield strength: 36-70 ksi, Charpy V-notch impact tested, ultrasonic tested per ASTM A578
temperature: -50°C to 350°C (depending on grade and heat treatment)
Media Compatibility
✓ Compressed air storage tanks ✓ LPG/propane vessels ✓ Industrial chemical reactors (non-corrosive media)
Unsuitable: Hydrochloric acid service (highly corrosive chloride environment)
Sizing Data Required
  • Design pressure (MAWP)
  • Design temperature (minimum and maximum)
  • Vessel diameter and length (volume requirements)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Stress Corrosion Cracking
Cause: Combination of tensile stress from internal pressure and corrosive environment (e.g., chlorides, sulfides) leading to crack propagation in susceptible steel microstructures.
Hydrogen-Induced Cracking
Cause: Hydrogen absorption from process fluids or cathodic protection, causing embrittlement and crack formation, particularly in high-strength steel plates with inclusions or hard zones.
Maintenance Indicators
  • Visible surface cracks, blistering, or localized bulging on the plate exterior
  • Sudden pressure fluctuations or abnormal acoustic emissions (hissing, popping) during operation
Engineering Tips
  • Implement regular non-destructive testing (e.g., ultrasonic, magnetic particle inspection) to detect subsurface flaws before they propagate
  • Control process parameters to minimize thermal cycling and corrosive exposure, and apply protective coatings compatible with service conditions

Compliance & Manufacturing Standards

Reference Standards
ASTM A516/A516M - Standard Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service EN 10028-2 - Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties ASME SA-516 - Specification for Pressure Vessel Plates, Carbon Steel, for Moderate- and Lower-Temperature Service
Manufacturing Precision
  • Thickness: +/- 0.25mm for plates up to 10mm thickness
  • Flatness: Maximum deviation of 5mm per meter length
Quality Inspection
  • Ultrasonic Testing (UT) for internal defects and laminations
  • Tensile Test to verify yield strength, tensile strength, and elongation properties

Factories Producing Pressure Vessel Quality Steel Plate

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.

Frequently Asked Questions

What are the key specifications for pressure vessel quality steel plates?

Key specifications include tensile strength (MPa), yield strength (MPa), thickness (mm), width (mm), length (mm), and impact test temperature (°C) to ensure safety and durability in pressure applications.

Why is impact test temperature important for pressure vessel steel?

Impact test temperature determines the steel's toughness at low temperatures, preventing brittle fracture in pressure vessels operating in cold environments, which is critical for safety and regulatory compliance.

What materials are used in pressure vessel quality steel plates?

These plates are typically made from carbon steel or low-alloy steel, selected for their strength, weldability, and resistance to pressure and corrosion in tank and reservoir applications.

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 Manufacture of Tanks, Reservoirs and Containers of Metal.

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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