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
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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.
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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.
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.
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.

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 | |||



