Low Temperature Pressure Vessel Steel Plate

Product Overview

Low Temperature Pressure Vessel Steel Plate is a critical engineering material designed for pressure-containing equipment operating in low-temperature, cryogenic, and high-stress environments.
It is specifically developed to ensure structural integrity, fracture resistance, and stable mechanical performance under sub-zero service conditions, including environments as low as -40°C, -60°C, and down to -196°C for nickel-alloy grades.
Unlike general structural steel, this material is used in safety-critical pressure systems where material failure is not acceptable.

Technical Specifications

Mechanical Properties

Nickel alloy grades maintain stable performance at cryogenic temperatures down to -196°C. 

Product Standards & Steel Grades

We supply internationally recognized pressure vessel steel grades:

ASTM / ASME Standards
• ASTM A516 Gr.60 / Gr.65 / Gr.70
• ASME SA516 series

EN European Standards
• P265GH
• P355GH
• P355NL1 / P355NL2

Chinese GB Standards
• 16Mn
• 16MnR
• 16MnDR (enhanced low-temperature toughness grade)

Engineering Applications

LNG & Cryogenic Industry
• LNG storage tanks (-162°C service)
• Cryogenic pressure vessels (-196°C service)
• Liquefied gas transport systems

Petrochemical & Refining
• Reactor vessels
• Separation equipment
• High-pressure storage tanks

Industrial Gas Systems
• Oxygen / nitrogen / hydrogen storage tanks
• Air separation units (ASU)

Energy & Offshore Engineering
• Offshore pressure structures
• Boiler pressure components
• Low-temperature operational facilities

Supply Risk Control & Quality Assurance

For pressure vessel and cryogenic applications, material reliability is directly linked to project safety.
We implement strict quality control systems:

Material Control
• Precise chemical composition control per heat
• Low impurity levels for improved toughness
• Nickel content control for cryogenic grades

Mechanical Guarantee
• Guaranteed Charpy V-notch impact performance
• Tensile strength consistency per batch
• Controlled rolling and heat treatment process

Inspection System
• 100% Ultrasonic Testing (UT)
• Hardness and tensile testing
• Impact testing at specified temperatures
• Third-party inspection: SGS / BV / TUV / Lloyd's

Packaging & Export Service

• Seaworthy export packaging
• Steel strip bundling reinforcement
• Waterproof protection system
• Project-specific marking system
• Wooden/steel support (optional)

Delivery Terms:
FOB / CFR / CIF / EXW

Why Global Buyers Choose Youcheng Steel

Mill-Direct Manufacturing Supply
Stable production of ASTM / ASME / EN / GB pressure vessel steel grades with controlled rolling and heat treatment processes.

Full Traceability System (Engineering Standard)
Each plate is fully traceable through:
• Heat number tracking system
• EN10204 3.1 Mill Test Certificate (MTC) per batch
• Chemical & mechanical property tracking per production heat

Strict Quality Inspection System
• 100% Ultrasonic Testing (UT) before shipment
• Charpy impact testing at specified temperatures
• Tensile & yield strength testing per heat

Verified Export Experience
Supplying materials to engineering projects in:
• LNG & gas infrastructure (Middle East)
• Petrochemical plants (Southeast Asia)
• Pressure vessel manufacturers (Europe)
• Energy infrastructure projects (South America & Africa)

Third-Party Inspection Accepted
SGS / BV / Lloyd's / ABS inspection available before shipment.

Engineering Response Capability
Technical quotation and specification confirmation within 12 hours.

Our Certificate

Frequently Asked Questions