Pressure Vessel Steel

Pressure Vessel Steel Manufacturer

Pressure vessel steel plates are specialized carbon, low-alloy and alloy steel materials engineered for manufacturing boilers, storage tanks, reactors, heat exchangers and other equipment operating under high pressure and temperature conditions.

Technical Parameters

Item	Specification
Material Type	Carbon Steel / Low Alloy Steel / Alloy Steel
Common Grades	SA516, SA387, A537, A203, A612, A517, P355NL2, Q345R
Standards	ASTM, ASME SA, EN 10028, GB 713
Thickness	5–200 mm (Custom Available)
Width	Up to 4000 mm
Heat Treatment	Normalized, Normalized & Tempered, Quenched & Tempered
Surface Condition	Shot blasting, smooth surface, customized treatment
Testing	UT, tensile test, impact test, bending test, MTC available
Certification	EN 10204 3.1 / 3.2, Third-party inspection available

Key Advantages

High Pressure Load Capacity

Pressure vessel steel provides high yield strength and tensile strength to withstand internal pressure from gases, liquids and steam while maintaining structural stability.

Excellent Weldability

Optimized chemical composition and controlled carbon equivalent allow reliable welding performance during vessel fabrication and reduce the risk of weld cracking.

Superior Impact Toughness

Low-temperature grades maintain toughness under cryogenic conditions, helping prevent brittle fracture caused by temperature fluctuations.

Product Range

SA387 Alloy Steel Pressure Vessel Plates

A537 Pressure Vessel Steel Plate

SA516 Steel Boiler Plate

ASTM A515 Grade 60/65/70 Steel Plate

ASTM A203 Low Temperature Pressure Vessel Steel

A204 Alloy Steel Plate for Pressure Vessel

ASTM A662 Carbon Boiler Plate

ASTM A612/A612M Pressure Vessel Steel Plate

ASTM A517 Pressure Vessel Steel Plate

ASME SA537 Class 1/Class 2 Boiler Pressure Vessel Steel

Selection Guide

Selecting suitable pressure vessel steel depends on operating temperature, pressure level, service medium and fabrication requirements.

Application Requirement	Recommended Grades
General pressure vessels and boilers	SA516 Gr.60/70, Q245R, Q345R
High-temperature reactors	SA387 Gr.11, SA387 Gr.22, 15CrMoR
Cryogenic storage tanks	A203, A612, P355NL2, 16MnDR
Heavy wall high-pressure vessels	A517, A537, 13MnNiMoR
Sour service environments containing H₂S	HIC-resistant SA516, SA387 grades
Ammonia storage tanks	P355NL2, P275NL2

Processing Guide

Pressure vessel steel requires controlled processing methods to maintain mechanical properties and fabrication reliability.

Cutting

CNC plasma cutting, laser cutting and flame cutting are available for different thickness ranges while maintaining dimensional accuracy.

Rolling & Forming

Heavy plate rolling and press brake forming services are provided for cylindrical shells, tank sections and structural components.

Welding

Suitable welding procedures and consumables are selected according to steel grade and vessel fabrication requirements.

Heat Treatment

Normalizing, tempering and quenching processes improve strength, toughness and microstructure stability.

Custom Processing

For customers requiring ready-to-fabricate pressure vessel components, we provide customized processing services based on engineering drawings, manufacturing standards and project requirements.

Available processing services include:

Cutting Service
Plate Rolling & Forming
Edge Preparation & Beveling
Machining Service
Heat Treatment Service

ASME SA387 Alloy Steel Pressure Vessel Plates

Quality Control & Certification

Our quality control process includes:

Chemical composition analysis to verify alloy element content and material grade accuracy.
Tensile testing, impact testing and bending testing to confirm mechanical properties.
Ultrasonic testing (UT) to detect internal defects such as laminations and inclusions.
Dimensional inspection including thickness, length, width and flatness control.
Heat treatment monitoring to ensure stable microstructure and mechanical performance.
Surface inspection to ensure plates meet project appearance and quality requirements.

Certification and inspection support:

EN 10204 3.1 / 3.2 Material Test Certificate (MTC)
ASTM / ASME standard compliance
NACE HIC testing support for sour service applications
Third-party inspection services from SGS, BV and other recognized inspection agencies

why choose us

18+ Years of Steel Export Experience

With extensive experience in international steel supply, we understand the material requirements and delivery expectations of global industrial customers.

Professional Wear Steel Processing Capability

Beyond supplying AR steel plates, we provide cutting, drilling, bending and customized fabrication services to deliver ready-to-use wear components.

Strict Quality Control & Certification Support

Each batch is inspected through chemical analysis, mechanical testing, hardness inspection and dimensional checks. MTC and third-party inspection support are available.

Stable Supply & Flexible Solutions

Large inventory, multiple warehouses and flexible production capabilities ensure reliable supply for both standard orders and customized projects.

Packaging & Logistics

MOQ:

Flexible MOQ available according to steel grade, plate size, thickness and processing requirements.

Lead Time:

Standard products are usually delivered within 7–20 days; customized processing depends on project complexity and quantity.

Packaging:

Steel plates are packed with export-standard protection methods, including steel strapping, edge protection and moisture-resistant measures.

Documentation:

MTC, inspection reports and shipping documents are provided according to customer requirements.

Shipping:

Sea, rail and multimodal transportation solutions are available for global delivery.

FAQ

Q: What is pressure vessel steel?

A: Pressure vessel steel is a specialized carbon, low-alloy or alloy steel designed for manufacturing equipment that stores or processes liquids, gases or steam under high pressure and temperature conditions. These steels provide high strength, toughness and weldability to ensure safe operation.

Q: What is the difference between pressure vessel steel and ordinary carbon steel?

A: Pressure vessel steel is manufactured with stricter control of chemical composition, mechanical properties and internal quality. Compared with ordinary carbon steel, it provides better toughness, weldability and resistance to pressure, temperature changes and service environments.

Q: What pressure vessel steel grades do you supply?

A: We supply major pressure vessel steel grades including SA516, SA387, A537, A515, A203, A204, A612, A517, SA537, P355NL2, P275NL2 and Q245R/Q345R according to ASTM, ASME, EN and GB standards.

Q: What industries use pressure vessel steel plates?

A: Pressure vessel steels are widely used in oil and gas, petrochemical, power generation, chemical processing, nuclear energy, LNG storage, ammonia storage and industrial boiler applications.

Q: What thickness of pressure vessel steel can you supply?

A: We supply pressure vessel steel plates with thicknesses generally ranging from 5 mm to 200 mm. Customized thickness, width and length are available according to project requirements.

Q: Do you provide pressure vessel steel with ASME certification?

A: Yes. We can supply pressure vessel steel according to ASTM/ASME standards and provide Material Test Certificates (MTC) including EN 10204 3.1 and 3.2 certification upon request.

Q: What testing is available for pressure vessel steel?

A: Available tests include chemical analysis, tensile testing, impact testing, bending testing, ultrasonic testing (UT), hardness testing and other inspections required by project specifications.

Q: Can you provide HIC-resistant pressure vessel steel?

A: Yes. For sour service applications containing hydrogen sulfide (H₂S), we can provide HIC-resistant pressure vessel steel with NACE TM0284 testing and related inspection documentation.

Q: Can pressure vessel steel plates be customized and processed?

A: Yes. We provide cutting, beveling, rolling, forming, machining and heat treatment services according to customer drawings, fabrication requirements and applicable standards.

Q: How do I select the right pressure vessel steel grade?

A: The suitable grade depends on operating temperature, design pressure, service medium, corrosion conditions, required toughness and fabrication method. Our technical team can recommend suitable grades based on project specifications.

As one of the most professional pressure vessel steel manufacturers and suppliers in China, we also support customized service with low price. We warmly welcome you to buy high quality pressure vessel steel in stock here from our factory. If you have any enquiry about free sample, please feel free to email us.