Nickel Alloy 31 Plate
1. Material grade: ASTM B625, ASME SB 625
2. Width: 1000~2500mm or as per your requirements
3. Length: 0~12m or as per your requirements
4. Thickness: 0.5~ 50mm or as per your requirements
ASTM SB625 Nickel Alloy 31 Plate & Sheet Supplier, Manufacturer.
Alloy 31(UNS N08031, 1.4562) Plate is a high-performance nickel-iron-chromium-molybdenum alloy known for its excellent corrosion resistance, particularly in aggressive chemical environments. N08031 Plate serves as a bridge between stainless steels and higher nickel alloys, making it a preferred choice for industries requiring durability and resistance to extreme conditions. HT PIPE is a Nickel Alloy 31 Plate supplier with 15+ export experience. Contact us for more information and quotes for free!
Advantages of Alloy 31 Plates
ASTM B625 Alloy 31 Plate Corrosion resistance
Alloy 31 excels in corrosion protection, showing remarkable resistance across various media. In a 60°C, 50% sulfuric acid environment, its corrosion rate is under 0.1mm/a, vastly outperforming 316L stainless steel. Its critical pitting temperature (CPT) in ferric chloride exceeds 65°C, surpassing similar alloys. In strong acid conditions (pH=0-3), its dynamic polarization curve shows a stable passivation zone up to +800mV (SCE), highlighting its self-healing passivation ability.
UNS N08031 Plate High temperature adaptability
Alloy 31's exceptional temperature tolerance sets it apart from conventional stainless steels. At liquid helium temperature (-269℃), it retains a fracture toughness of 85 MPa·m¹/²-four times that of 304 stainless steel. At 650℃ in an oxidizing atmosphere, it gains only 1.2 mg/cm² annually due to the formation of a protective CrMoO₄ spinel oxide. Under cyclic thermal shock between 200–600℃, its plastic strain accumulates at just 0.02% per cycle, a performance that has enabled its use in geothermal power plant flash evaporator shells for over 80,000 hours without failure.
Alloy 31 Sheet fatigue properties
Rotational bending fatigue tests show that N08031's 10⁷-cycle fatigue strength reaches 400MPa, which is 60% higher than that of traditional austenitic steel. The high-cycle fatigue fracture shows a typical cleavage river pattern and dimple mixed morphology, and the crack initiation points are concentrated at the surface nitride layer defects.
Alloy 31 Sheet Sustainable development value
Alloy 31's full life cycle carbon emissions are 28% lower than nickel-based alloys, and the material recovery rate can reach 98%. Its long life reduces the frequency of equipment replacement, and a single sulfuric acid reactor can reduce 300 tons of CO₂ emissions during its life cycle. In the field of new energy, it has made breakthroughs in the application research of electrolytic hydrogen production diaphragm frames, with a pressure resistance of 35MPa, providing key material support for the large-scale production of green hydrogen.
Specifications of Alloy 31 Plate
| Specifications | ASTM B625 / ASME SB625 |
| Dimensions | ASTM, ASME, and API |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Thickness | 4mm-100mm |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface Finish | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated) etc |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
Chemical Composition of Alloy 31 Plate
| % | Cr | Mn | Fe | Mo | Si | P | Ni | S | Cu | C | N |
| Min | 26.0 | - | Rest | 6.00 | - | - | 30.0 | - | 1.00 | - | 0.15 |
| Max | 28.0 | 2.00 | - | 7.00 | 0.30 | 0.02 | 32.0 | 0.01 | 1.40 | 0.015 | 0.25 |
Alloy 31 Plate Sheet Mechanical Properties
| Melting point | Elongation,% | Tensile strengtd, MPa | Density | Yield strengtd, MPa |
| 1350-1370℃ | ≥40 | ≥650 | 8.10 g/cm3 | ≥280 |
Application of Alloy 1.4562 Plate
- Chemical Processing: Heat exchangers, reactors, and storage tanks.
- Petrochemical Industry: Piping and pressure vessels.
- Marine Engineering: Seawater-cooled heat exchangers and desalination plants.
- Pharmaceutical and Food Processing: Equipment requiring contamination-free environments.
- Pulp and Paper Industry: Handling acidic slurries and chemical solutions.
- Power Generation: Components in flue gas desulfurization (FGD) systems.
Size of Nickel Alloy 31 Plate
| Size (in inches) | Size (in mm) |
| .125" | 3.18mm |
| .134" | 3.40mm |
| .156" | 3.96mm |
| .187" | 4.75mm |
| .250" | 6.35mm |
| .312" | 7.92mm |
| .375" | 9.53mm |
| .500" | 12.7mm |
| .600" | 15.9mm |
| .750" | 19.1mm |
| .875" | 22.2mm |
| 1" | 25.4mm |
| 1.125" | 28.6mm |
| 1.250" | 31.8mm |
| 1.500" | 38.1mm |
| 1.750" | 44.5mm |
| 2" | 50.8mm |
| 2.500" | 63.5mm |
| 3" | 76.2mm |
FAQ
Q: About Alloy 31 UNS N08031 Plate prices?
A: Prices from ranges $30 - $35 per kilogram, vary depending on size, wall thickness, supplier etc.
Q: How long does your delivery time take?
A: Delivery time is within 5-21 days
Q: Is There Sample Service?
A: Samples Are Provided Free Of Charge
Q: What Is The Minimum Order Quantity?
A: No Minimum Order Quantity
Q: How to pack the products?
A: The inner layer has a waterproof paper outer layer and is fixed with a fumigation wooden pallet.
Q: Exported Countries
A: Brazil, South Africa, Indonesia, India, Singapore, Malaysia, Iran, Russia, UAE, Chile, Laos, etc
Q: Can we visit your factory?
A: Of course, you are always welcome!
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