Incoloy 31 Alloy
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
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Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of incoloy 31 alloy in China. If you're going to wholesale high quality incoloy 31 alloy made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
Alloy 31 is an iron-nickel-chromium-molybdenum alloy with nitrogen addition. The alloy fills the gap between special alloyed austenitic stainless steels and nickel alloys. Alloy 31 has been proven especially in the chemical and petrochemical industry, in ore extractors, environmental and marine engineering as well as in oil and gas production.
Alloy 31 is an iron-nickel-chromium-molybdenum alloy with nitrogen and copper additions which has hybridized properties of austenitic super stainless steels and regular nickel alloys. Alloy 31 has exceptional corrosion resistance to alkaline & halide-containing media, sulfuric acid, phosphoric acid, chlorine dioxide media, nitric acid as well as reducing & oxidizing medias. It is widely used in offshore & marine industries, chemical & petrochemical processing, pharmaceutical piping, oil and gas extraction, and ore digestion plants. Especially, Alloy 31 can be used for the fabrication of pressure vessels which may endure a wide temperature-range from cryogenic level to elevated temperatures(-196°C to 550 °C).
Common Trade Names:
Alloy 31 / UNS NO8031 / W.Nr. 1.4562
Alloy 31 Characteristic
Excellent resistance to corrosion and erosion in phosphoric acid media
Excellent resistance to general and localized corrosion in Chloridoxid bleaching plants in paper production
Certification to ISO 15156/MR 0175 to level VI for sour gas applications in the oil and gas industry
Excellent resistance in reducing and oxidizing media, as well as in boiling 67% nitric acid
Excellent corrosion resistance in alkaline and acid halide media
Approval for pressure vessels with operating temperatures from -196 to 550 ° C
Good processability and weldability
Excellent resistance to sulfuric acid in a highly concentrated form
Specifications：
ASTM B581, ASTM B649, ASME SB581, ASME SB649, ASTM B625, ASME SB625
Alloy 31 Chemical Composition (% by weight)
| Element | C | Si | Mn | P | S | Cr | Cu | Fe | Mo | N | Ni |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | - | - | - | - | - | 26 | 1 | Balance | 6 | 0.15 | 30 |
| Max | 0.015 | 0.3 | 2 | 0.02 | 0.01 | 28 | 1.4 | 7 | 0.25 | 32 |
Alloy 31 Typical Physical and Mechanical Properties (RT, Annealed)
| Density, g/cm³ | Melting Point, ℃ | Tensile Strength, MPa | Yield Strength, MPa | ELongation, % | Hardness, HRB |
|---|---|---|---|---|---|
| 8.05 | 1330-1370 | ≥650 | ≥228 | ≥40 | / |
Alloy 31 Available Shape
Alloy 31 Size Range
Bars & Rods & Foring Ring /Flanges
Sheet & Plate
Strip & Coil
Welding Wire &Spring wire
Seamless Tube & Welded Pipe
Alloy 31 ApplicationsI
Components for flue gas desulfurization (FGD) plants
Plants for the production of phosphoric acid via the wet digestion process
Pipes and heat exchangers for sulfuric acids contaminated with chlorides
Pipes containing ocean water and brackish water, condensers and chillers
Pickling plants for sulfuric acid as well as nitric-hydrofluoric acid
Treatment of sulfuric acids from waste
Evaporation and crystallization of salts
Components for the cellulose and paper industry
Digestion of ores, e.g. in HIPAL (high-pressure acid leach) plants for the digestion of laterite ores
Mineral oil production and refineries
Organic acids and ester synthesis Fine chemicals
Strain-hardened transport and feed
pipes as well as slicklines, wirelines and flowlines in the transport of oil and gas
Introducing our Alloy 625 Bar – a high-performance nickel-based superalloy designed to meet the most demanding requirements in corrosive and high-temperature environments. Crafted with precision and engineered for excellence, this Alloy 625 Bar is a versatile solution for a multitude of industrial applications.
Key Features:
Exceptional Corrosion Resistance: Our Alloy 625 Bar boasts outstanding resistance to corrosion in a variety of challenging environments, including acids and alkaline solutions. Its resistance to pitting and crevice corrosion ensures longevity and reliability in corrosive settings.
High Temperature Strength: Experience unparalleled strength even at elevated temperatures. This alloy maintains its structural integrity under high thermal stress, making it an ideal choice for applications in gas turbines, nuclear reactors, and other high-temperature environments.
Oxidation and Scaling Resistance: The Alloy 625 Bar is crafted to withstand oxidation and scaling at elevated temperatures, ensuring reliability and longevity in conditions where other materials may falter.
Versatility Across Industries: From chemical processing to aerospace, marine engineering, and beyond, this Alloy 625 Bar demonstrates its versatility across various industries, providing a robust and reliable solution for diverse applications.
High Tensile and Yield Strength: With high tensile and yield strength, our Alloy 625 Bar delivers the mechanical properties needed for structural stability and performance in demanding situations.
Fatigue Resistance: Count on this alloy to resist fatigue, making it an excellent choice for applications subjected to cyclic loading.
Ease of Weldability: The Alloy 625 Bar is designed for ease of welding, allowing for seamless integration into diverse fabrication processes using conventional welding techniques.
Creep Resistance: Benefit from good resistance to creep deformation, ensuring the Alloy 625 Bar remains steadfast in applications with prolonged exposure to high temperatures.
Quality Chemical Composition: Our Alloy 625 Bar is meticulously crafted with a precise blend of nickel, chromium, molybdenum, and niobium, among other elements, delivering a product with a unique and reliable combination of properties.
Elevate your projects with the reliability and performance of our Alloy 625 Bar – a testament to quality craftsmanship and unwavering durability. Choose excellence, choose Alloy 625 Bar for your critical applications.
FAQ
Q: How do you control quality ?
A: Mill Test Certification is supplied with shipment, Third Party Inspection is available. and we also get ISO,SGS,Alibaba Verified.
Q: What are the advantages of your company ?
A: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.
Q: How many coutries you already exported ?
A: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India, etc.
Q: Can you provide sample ?
A: Yes. We can provide the small samples in stock for free, as long as you contact us.Customized samples will take about 5-7 days.
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