Why Choose P460NH Pressure Vessel Steel?

Oct 24, 2025 Leave a message

 

What is P460NH?

 

P460NH is a high-strength pressure vessel steel composed primarily of iron, with approximately 0.16% carbon, 1.10-1.70% manganese, and small amounts of silicon, phosphorus, and sulfur. It is a fine-grain steel usually supplied as solid plates. This steel is hot-rolled to enhance its mechanical properties; known for its good toughness, weldability, and heat resistance, it is used in pressure vessels, boilers, and heat exchangers.

 

"P" stands for pressure, "460" refers to a minimum yield strength of 460 MPa, and "NH" indicates suitability for high-temperature use and that the material is normalized (N) or normalized rolled (N) for improved toughness and strength.

It provides good weldability, toughness, and heat resistance, making it ideal for pressure vessels, boilers, and heat exchangers. Equivalent grades include DIN WStE460, AFNOR E460FP, GB Q460R, and GOST 18G2. Subgrades like P460NL1 and P460NL2 are used in low-temperature conditions.

 

Why Choose P460NH Pressure Vessel Steel?

 

If you're seeking high-strength steel for pressure vessels in high-pressure and high-temperature environments, P460NH is an excellent choice. It provides the ideal combination of strength and toughness for demanding applications. Its excellent weldability ensures easier fabrication and repairs, helping to reduce downtime and costs. P460NH is known for its resistance to heat and pressure, offering enhanced safety and durability. It's versatile, with subgrades like P460NL1 and P460NL2 for low-temperature conditions. If your project requires greater corrosion resistance or higher toughness, consider alternatives like P355NH or 16Mo3 for specific applications. Choosing P460NH gives you a trusted, high-performance material used in industries such as energy, petrochemical, and manufacturing.

 

Machining

 

  • P460NH steel P460NH Heat Treatment

Here are the P460NH steel forms we offer at GNEE:

Normalized P460NH: The standard form, providing consistent mechanical properties and toughness for pressure vessel applications.

Stress-Relieved P460NH: Used to reduce residual stresses after welding or fabrication, ensuring long-term durability and stability.

Tempered P460NH: Adjusted for specific hardness and strength requirements, making it suitable for customized applications.

As-Rolled P460NH: Available without additional heat treatment, suitable for projects where basic properties meet your needs.

These options allow you to choose the right form of P460NH for your specific project requirements.

 

  • P460NH Surface Finish

Shot Blasting/Sandblasting: Cleans the surface, removes rust, and prepares for coatings.

Pickling and Passivation: Removes oxides, improves corrosion resistance.

Galvanization: Adds zinc coating for corrosion protection in certain environments.

Anti-corrosion Paint Coating: Protects against corrosion in marine or chemical conditions.

Cladding: Bonds a corrosion-resistant layer for extreme chemical or high-temperature resistance.

Phosphating: Enhances paint adhesion and reduces surface wear.

Heat-resistant Coatings: Protects against scaling and oxidation at high temperatures.

 

Chemical Compositions

 

Element P460NH Content (%) P460NL1 Content (%) P460NL2 Content (%)
       
Carbon, C max 0.20 max 0.20 max 0.20
Silicon, Si max 0.60 max 0.60 max 0.60
Manganese, Mn 1.10 – 1.70 1.10 – 1.70 1.10 – 1.70
Nickel, Ni max 0.80 max 0.80 max 0.80
Phosphorus, P max 0.025 max 0.025 max 0.020
Sulfur, S max 0.015 max 0.015 max 0.01
Chromium, Cr max 0.30 max 0.30 max 0.30
Molybdenum, Mo max 0.10 max 0.10 max 0.10
Vanadium, V max 0.20 max 0.20 max 0.20
Nitrogen, N max 0.025 max 0.020 max 0.020
Niobium, Nb max 0.05 max 0.05 max 0.05
Titanium, Ti max 0.03 max 0.03 max 0.03
Aluminum, Al max 0.02 max 0.02 max 0.02
Copper, Cu max 0.70 max 0.70 max 0.70
Nb + Ti + V < 0.22 < 0.22

< 0.22

 

Mechanical Properties

 

kness Range (mm) Tensile Strength (MPa/ksi) Yield Strength (MPa/ksi) Brinell Hardness (HB) Rockwell Hardness (HRB) Vickers Hardness (HV) Elongation (%) Elastic Modulus (GPa/ksi) Impact Energy (KV J) min (-20°C / 0°C / +20°C)
                 
6 – 16 570-720 / 82.7-104.4 460 / 66.7 140-200 70-95 130-190 22-25 210 / 30457 27 / 40 / 60
16 – 40 570-720 / 82.7-104.4 440 / 63.8 140-200 70-95 130-190 21-23 210 / 30457 27 / 40 / 60
40 – 60 570-720 / 82.7-104.4 430 / 62.4 140-200 70-95 130-190 20-22 210 / 30457 27 / 40 / 60
60 – 100 570-720 / 82.7-104.4 410 / 59.5 140-200 70-95 130-190 19-21 210 / 30457 27 / 40 / 60
100 – 150 570-720 / 82.7-104.4 400 / 58.0 140-200 70-95 130-190 18-20 210 / 30457 27 / 40 / 60
>150 570-720 / 82.7-104.4 390 / 56.6 140-200 70-95 130-190 16-18 210 / 30457 27 / 40 / 60

 

Industries & Applications

 

Industries Products
   
Power Generation Boilers, Heat Exchangers, Steam Drums, Pressure Tanks, Reactors
Oil & Gas Storage Tanks, Separators, Pressure Vessels, Pipelines, Gas Compressors
Chemical Processing Reactors, Heat Exchangers, Storage Tanks, Pressure Filters, Distillation Columns
Petrochemical Industry Pressure Vessels, Catalytic Cracking Units, Storage Tanks, Heat Exchangers, Reactors
Marine Engineering Ship Boilers, Ballast Tanks, Heat Exchangers, Pressure Cylinders, Desalination Equipment
Aerospace Industry Fuel Tanks, Pressure Chambers, Engine Components, Heat Exchangers, Structural Frames
Construction Structural Columns, Support Beams, Pressure Tanks, Reinforcement Plates, Roof Trusses
Automotive Manufacturing Fuel Tanks, Pressure Cylinders, Hydraulic Components, Heat Exchangers, Structural Panels
Food and Beverage Industry

Storage Tanks, Pressure Vessels, Pasteurizers, Steam Vessels, Sterilizers

 

Product Specification

 

Category Details
Quality Standard EN 10028-3, GB 150, JIS G 3103, ASTM A516, DIN 17155, BS 1501
Certifications CE, HIC, NACE, ISO 9001, AD 2000-W0, PED, ASME Section II, LR, DNV, BV, SGS
Thickness 6-150mm
Width 900-4800mm
Length 3000-25000mm
Weight Depends on length and width
Tolerances Thickness Tolerance (±0.5, ±1.0, ±1.5, ±2.0, ±2.5), Width Tolerance (±5mm), Length Tolerance (±10mm)
Technology Hot Rolled
Processing Service Bending, Welding, Decoiling, Cutting, Punching
Shapes Pressure Vessel Steel Plate, Pressure Vessel Steel Sheet, Pipes, Profiles
MOQ (Minimum Order Quantity) 5 tons (according to the actual tonnage)
Lead Time Typically 7-20 days
Price Terms & Payment Based on customer requirements, T/T, L/C
Ports Qingdao, Lianyungang, Dalian

 

Packing

 

At GNEE, we ensure that P460NH steel is packed and transported with the highest standards to maintain product integrity and customer satisfaction.

 

P460NH steel Enhanced Protection:
GNEE uses industry-standard wooden crates, steel strapping, and waterproof wrapping for optimal protection during transportation.

Preventing Corrosion:
We apply anti-rust coatings and use moisture-resistant materials in the packing process, safeguarding P460NH steel from environmental exposure.

Minimized Damage Risk:
Our packaging methods include reinforced edges and impact-resistant materials to prevent deformation and surface damage during transit.

Customized Solutions:
GNEE offers tailored packing options based on customer needs, ensuring that each shipment is handled with the appropriate care for safe delivery.

 

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If you want to learn more about GNEE's products, you can send an email to alloy@gneesteelgroup.com. We are more than happy to assist you.

 

What Is The Typical Lead Time For Delivery Of P460NH Steel Plates After Heat Treatment?

The typical lead time for delivery is 7-15 days, depending on the size of the order and any specific heat treatment requirements.

 

Can P460NH Be Customized For Low-Temperature Applications, And What Specific Certifications Are Available For Such Cases?

Yes, P460NH can be customized for low-temperature applications, particularly with subgrades like P460NL1 and P460NL2. Certifications such as EN 10204 3.1/3.2, CE, and NACE are available.

P460NH steel

Can You Provide Material Test Certificates (MTC) And Inspection Documents With Each Delivery?

Yes, Material Test Certificates (MTC) in compliance with EN 10204 standards, along with inspection documents, are provided with every delivery.

 

What Are The Payment Terms For Bulk Orders Of P460NH Steel Plates?

Payment terms typically include T/T (Telegraphic Transfer) or L/C (Letter of Credit), with specific details arranged according to order size and your requirements.

 

Are There Any Specific Packaging Requirements For International Shipping Of P460NH?

Yes, P460NH steel plates are typically packaged using seaworthy wooden pallets or crates, with waterproof wrapping to prevent moisture damage, and steel straps with edge protectors to secure the plates and avoid surface or edge damage during transit.

 

Can We Receive Regular Stock Updates Or Inventory Availability For P460NH?

Absolutely, regular stock updates and inventory availability can be provided upon request to help manage procurement schedules effectively.

 

Grades Of Pressure Vessel Plates Supplied By GNEE
ASTM ASTM A202/A202M ASTM A202 Grade A ASTM A202 Grade B    
ASTM A203/A203M ASTM A203 Grade A ASTM A203 Grade B ASTM A203 Grade D ASTM A203 Grade E
ASTM A203 Grade F      
ASTM A204/A204M ASTM A204 Grade A ASTM A204 Grade B ASTM A204 Grade C  
ASTM A285/A285M ASTM A285 Grade A ASTM A285 Grade B ASTM A285 Grade C  
ASTM A299/A299M ASTM A299 Grade A ASTM A299 Grade B    
ASTM A302/A302M ASTM A302 Grade A ASTM A302 Grade B ASTM A302 Grade C ASTM A302 Grade D
ASTM A387/A387M ASTM A387 Grade 5 Class1 ASTM A387 Grade 5 Class2 ASTM A387 Grade 11 Class1 ASTM A387 Grade 11 Class2
ASTM A387 Grade 12 Class1 ASTM A387 Grade 12 Class2 ASTM A387 Grade 22 Class1 ASTM A387 Grade 22 Class2
ASTM A515/A515M ASTM A515 Grade 60 ASTM A515 Grade 65 ASTM A515 Grade 70  
ASTM A516/A516M ASTM A516 Grade 55 ASTM A516 Grade 60 ASTM A516 Grade 65 ASTM A516 Grade 70
ASTM A517/A517M ASTM A517 Grade A ASTM A517 Grade B ASTM A517 Grade E ASTM A517 Grade F
ASTM A517 Grade P ASTM A517 Grade J    
ASTM A533/A533M ASTM A533 Grade A Class1 ASTM A533 Grade B Class1 ASTM A533 Grade C Class1 ASTM A533 Grade D Class1
ASTM A533 Grade A Class2 ASTM A533 Grade B Class2 ASTM A533 Grade C Class2 ASTM A533 Grade D Class2
ASTM A533 Grade A Class3 ASTM A533 Grade B Class3 ASTM A533 Grade C Class3 ASTM A533 Grade D Class3
ASTM A537/A537M ASTM A537 Class1 ASTM A537 Class2 ASTM A537 Class3  
ASTM A612/A612M ASTM A612      
ASTM A662/A662M ASTM A662 Grade A ASTM A662 Grade B ASTM A662 Grade C  
EN EN10028-2 EN10028-2 P235GH EN10028-2 P265GH EN10028-2 P295GH EN10028-2 P355GH
EN10028-2 16MO3      
EN10028-3 EN10028-3 P275N EN10028-3 P275NH EN10028-3 P275NL1 EN10028-3 P275NL2
EN10028-3 P355N EN10028-3 P355NH EN10028-3 P355NL1 EN10028-3 P355NL2
EN10028-3 P460N EN10028-3 P460NH EN10028-3 P460NL1 EN10028-3 P460NL2
EN10028-5 EN10028-5 P355M EN10028-5 P355ML1 EN10028-5 P355ML2 EN10028-5 P420M
EN10028-5 P420ML1 EN10028-5 P420ML2 EN10028-5 P460M EN10028-5 P460ML1
EN10028-5 P460ML2      
EN10028-6 EN10028-6 P355Q EN10028-6 P460Q EN10028-6 P500Q EN10028-6 P690Q
EN10028-6 P355QH EN10028-6 P460QH EN10028-6 P500QH EN10028-6 P690QH
EN10028-6 P355QL1 EN10028-6 P460QL1 EN10028-6 P500QL1 EN10028-6 P690QL1
EN10028-6 P355QL2 EN10028-6 P460QL2 EN10028-6 P500QL2 EN10028-6 P690QL2
JIS JIS G3115 JIS G3115 SPV235 JIS G3115 SPV315 JIS G3115 SPV355 JIS G3115 SPV410
JIS G3115 SPV450 JIS G3115 SPV490    
JIS G3103 JIS G3103 SB410 JIS G3103 SB450 JIS G3103 SB480 JIS G3103 SB450M
JIS G3103 SB480M      
GB GB713 GB713 Q245R GB713 Q345R GB713 Q370R GB713 12Cr1MoVR
GB713 12Cr2Mo1R GB713 13MnNiMoR GB713 14Cr1MoR GB713 15CrMoR
GB713 18MnMoNbR      
GB3531 GB3531 09MnNiDR GB3531 15MnNiDR GB3531 16MnDR  
DIN DIN 17155 DIN 17155 HI DIN 17155 HII DIN 17155 10CrMo910 DIN 17155 13CrMo44
DIN 17155 15Mo3 DIN 17155 17Mn4 DIN 17155 19Mn6