Pressure Vessel Steel

Pressure Vessel Steel

Pressure Vessel Steel is a specialized grade of carbon and alloy steel engineered to withstand high pressure, elevated temperature, and harsh operating environments. It is primarily used in the fabrication of boilers, storage tanks, heat exchangers, gas cylinders, and industrial pressure vessels where structural integrity and safety compliance are critical.

Category:

This steel category is manufactured with strict metallurgical controls to ensure superior toughness, weldability, corrosion resistance, and long-term mechanical stability. Pressure Vessel Steel plates are designed to meet international safety and performance standards, making them suitable for applications across oil & gas, petrochemical, power generation, marine, and heavy engineering sectors.

The material undergoes controlled rolling, heat treatment, and rigorous quality testing to ensure consistent grain structure and mechanical strength under extreme service conditions.


Key Features & Properties

Feature Description
High Strength Designed to withstand internal pressure and mechanical stress
Excellent Weldability Allows easy fabrication and structural joining
Superior Toughness Maintains integrity under low and high temperatures
Corrosion Resistance Suitable for chemical and harsh industrial environments
Thermal Stability Performs reliably in elevated temperature operations
Compliance Ready Meets international pressure vessel standards

Common Material Grades

Standard Grade Application
ASTM A516 Grade 60 Moderate temperature pressure vessels
ASTM A516 Grade 70 High strength boiler and vessel fabrication
EN P265GH Pressure equipment and steam boilers
EN P355GH High temperature and pressure vessels
ASME SA516 Gr 70 Industrial pressure containment systems

Mechanical Properties Overview

Property Typical Range
Tensile Strength 415 – 620 MPa
Yield Strength 220 – 355 MPa
Elongation 20 – 30%
Impact Resistance High toughness performance
Hardness Moderate hardness for fabrication flexibility

Available Product Forms

Form Description
Steel Plates Heavy duty pressure vessel fabrication
Steel Sheets Light and medium fabrication applications
Rolled Steel Sections Cylindrical vessel manufacturing
Custom Cut Plates Precision engineered vessel components

Industrial Applications

Industry Usage
Oil & Gas Storage tanks, separators, gas processing vessels
Power Generation Boilers, heat exchangers, steam drums
Petrochemical Chemical reactors and storage systems
Marine Industry Offshore pressure containment systems
Industrial Manufacturing Compressed air and gas cylinders

Heat Treatment Options

Treatment Type Purpose
Normalizing Improves grain uniformity and strength
Quenching & Tempering Enhances toughness and fatigue resistance
Stress Relieving Reduces internal fabrication stresses

Quality & Inspection Standards

Inspection Method Objective
Ultrasonic Testing (UT) Detects internal material defects
Radiographic Testing (RT) Ensures weld integrity
Charpy Impact Testing Verifies toughness at low temperatures
Chemical Composition Analysis Confirms grade compliance

Advantages of Pressure Vessel Steel

  • High operational safety reliability

  • Extended service life under extreme conditions

  • Cost-efficient fabrication compatibility

  • Excellent dimensional stability

  • Compliance with global engineering standards

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