Nickel 201 flanges are low-carbon nickel alloy connectors built for applications where standard nickel or stainless flanges can't handle the combination of caustic exposure and elevated temperature. Amco Metals manufactures and exports these flanges for chemical processing, caustic soda production, and food processing equipment, where corrosion resistance and stable mechanical performance at temperature both matter. The low-carbon composition is what sets this grade apart it prevents the carbide precipitation that limits standard Nickel 200 in high-temperature service.
Nickel 201 flanges are machined or forged from commercially pure nickel with a reduced carbon content, typically below 0.02%. That low-carbon specification prevents graphitization at temperatures above 315°C (600°F), which is exactly where standard Nickel 200 starts to lose reliability. The result is a flange that holds up in sustained high-temperature service without the embrittlement that would otherwise limit its use.
Nickel 201 flanges are in accordance with ASTM B160, ASTM B564 and ASME SB564 material specifications. They conform to ASME B16.5 dimensions for standard configurations and pressure classes for reliable performance, precise industrial interchangeability and safe operating conformity for demanding, high temperature, and corrosive service applications.
Each batch is tested for chemical composition, mechanically tested for properties and dimensionally inspected before it is shipped from our factory. We also supply Mill Test Certificates (MTC) in accordance with EN 10204/3.1 on request and third party inspection reports as required by the customer project specifications.
The commercially pure nickel bar stock is forged into rough flange forms under controlled temperature to preserve the alloy’s low-carbon integrity. Each flange is machined to exact ASME B16.5 dimensions, including bolt hole patterns and face finish. Then the flanges are heat-treated wherever required. After that, the final inspection is carried out on the surface finish, dimensional accuracy, and material certification before packing.
Nickel 201 remains the preferred choice wherever caustic exposure meets elevated temperature a combination that degrades standard nickel and many stainless grades faster than expected. Its low-carbon composition, reliable weldability, and consistent mechanical performance make it a dependable specification for engineers designing caustic soda plants, chemical reactors, and food-grade processing lines that need to run for years without unplanned flange replacement.
Specifications : ASTM / ASME SB 564 / 160 / 472
Dimensions : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size :1/2″NB TO 60″NB″
Pressure Ratings :150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Standards : ASTM, ASME Flanges, ANSI Flanges, DIN Flanges, EN Flanges, BS Flanges etc.
| STANDARD | WERKSTOFF NR. | UNS | AFNOR | GOST | JIS | BS | EN | OR |
| Nickel 201 | 2.4068 | N02201 | - | НП-2 | NW 2201 | NA 12 | LC-Ni 99 | - |
| Grade | C | Mn | Si | Cu | S | Mg | Ni | Ti | Fe |
| Nickel 201 | 0.02 max | 0.35 max | 0.2 max | 0.25 max | 0.01 max | 0.15 max | 99.0 min | 0.1 max | 0.4 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Nickel 201 | 8.9 g/cm3 | 1446 °C (2635 °F) | Psi – 67000 , MPa – 462 | Psi – 21500 , MPa – 148 | 45 % |
| Nickel 201 Flanges | Nickel Alloy 201 Flanges |
| Nickel 201 Long Weld Neck Flanges | Nickel Alloy 201 Awwa Flanges |
| Alloy 20 Flanges | Alloy Steel Flanges |
| Nickel 201 Body Flanges | Nickel Alloy 201 Blind Flanges |
| Nickel Alloy 201 Threaded Flanges | Nickel 201 Paddle Blank Flanges |
| ASTM B564 Nickel Paddle Spacer Flanges Manufacturer | Nickel DIN 2.4068 Spectacle Blind Flanges |
| ANSI B16.5 Ring Joint Flanges | ASTM, ASME Flanges |
| Nickel 201 RTJ Flanges Stock Holder | Nickel ASTM B564 Forged Flanges |
| Nickel 201 Slip On Flanges | Nickel 201 Weld Neck Flanges |
| Nickel 201 Loose Flanges | Nickel 201 Screwed Flanges Exporter |
| Alloy 201 BLRF Flanges | Nickel 201 Plate Flanges Exporter |
| ANSI B16.5 Alloy 201 Threaded Flanges Stockist | Nickel 201 Industrial Flanges Manufacturer |
| Nickel 201 Socket Weld Flanges | Alloy 201 Flanges Supplier |
| Nickel UNS N02201 Pipe Fittings | Nickel Werkstoff Nr. 2.4068 Buttweld Fittings |
Countries we have exported our products to:
Gabon, Czech Republic, Sweden, Gambia, Mexico, Spain, Switzerland, Macau, Egypt, Ecuador, Mongolia, Lithuania, United States, Germany, Poland, Romania, Pakistan, Ghana, Puerto Rico, Poland, Portugal, Nepal, Serbia, South Africa, Slovakia, Philippines, Hungary, Algeria, Jordan, Bhutan, Costa Rica, Japan, Peru, Turkey, Morocco, India, Malaysia, Austria, Iraq, Belarus, Chile, Bulgaria, Indonesia, Brazil, Oman, Norway, Saudi Arabia, Estonia, Denmark, Kuwait, Argentina, China, Italy, Ukraine, Netherlands, United Kingdom, Azerbaijan, France, Qatar, Canada, Sri Lanka, Namibia, Mexico, Belgium, Kazakhstan, Angola, Finland, Bangladesh, Afghanistan, Australia, Singapore, Taiwan, Trinidad & Tobago,Tunisia, Chile, Kenya, Ireland, United Arab Emirates, Tibet, New Zealand, Thailand, Bahrain, Israel, Hong Kong, Zimbabwe, Croatia, Greece, Bolivia, Colombia, Lebanon.
Cities we have supplied our products to:
Cairo, Secunderabad, Melbourne, Milan, Granada, Santiago, Al Khobar, Caracas, Ranchi, Ahmedabad, Edmonton, Bhopal, Pune, Thane, Bengaluru, Bogota, Jamshedpur, Port-of-Spain, Chiyoda, Madrid, Vung Tau, Perth, Hyderabad, Ulsan, Jeddah, La Victoria, Lagos, Dammam, Kuwait City, Navi Mumbai, Mumbai, Noida, Ernakulam, Gimhae-si, Rajkot, Thiruvananthapuram, Ho Chi Minh City, New Delhi, Geoje-si, Algiers, Petaling Jaya, Colombo, Muscat, Chennai, Ludhiana, Kolkata, Courbevoie, Jakarta, Houston, Baroda, Pimpri-Chinchwad, Kanpur, Dallas, Surat, Faridabad, Visakhapatnam, Sharjah, Chandigarh, Indore, London, Sydney, Los Angeles, Kuala Lumpur, Toronto, Seoul, Bangkok, Nagpur, Gurgaon, Jaipur, Riyadh, Tehran, Brisbane, Atyrau, Coimbatore, Moscow, Manama, Singapore, Busan, Rio de Janeiro, New York, Calgary, Montreal, Haryana, Dubai, Hong Kong, Lahore, Howrah, Al Jubail, Karachi, Doha, Ankara, Mexico City, Nashik, Istanbul, Vadodara, Aberdeen, Hanoi, Abu Dhabi, Ahvaz.
Nickel 201 Flanges are UNS N02201 low carbon alloy fittings for high temperature and corrosive service. They inhibit graphitization and are far more reliable than ordinary Nickel 200 in severe industrial service circumstances.
Yes, the low-carbon content specifically prevents the graphitization that limits standard nickel flanges above 600°F.
Yes, we export Nickel 201 flanges worldwide, supplying international buyers with complete export documentation and heavy-duty protective packaging to ensure safe, fully compliant global delivery for your industrial systems.
Yes, the alloy can be welded by normal welding techniques with matching nickel filler material.
Yes, flanges can be made to customer specifications as to size and pressure class.
Yes, MTCs to EN 10204/3.1 are dispatched with each order; third-party inspection reports are available on request.