Nickel 200 flanges are essential fittings used for connecting pipes, valves, and equipment in chemical processing, petrochemical, power generation, and marine systems. Made from commercially pure nickel (≥99.5%), Nickel 200 flanges offer excellent corrosion resistance in caustic and neutral media. In 2025, numerous manufacturers worldwide produce Nickel 200 flanges in various standards such as ANSI, DIN, and JIS. This article highlights major global manufacturers, flange types, and technical specifications buyers should know when sourcing Nickel 200 flanges.
Leading Nickel 200 Flange Manufacturers in 2025
| Company | Country | Flange Types | Certifications |
|---|---|---|---|
| Rajendra Industrial Corporation | India | WNRF, SORF, Blind, Threaded | ASTM B564, ISO 9001, PED |
| Shanghai Xinkehui Alloy | China | Lap joint, Slip-on, Weld neck | ASTM, RoHS, EN 10204 3.1 |
| NeoNickel | UK | Custom-forged and precision machined flanges | EN, NORSOK, ISO 14001 |
| Special Metals Inc. | USA | Socket weld, Threaded, Orifice flanges | ASME B16.5, DFARS |
| VDM Metals | Germany | DIN and EN standard flanges | ISO 9001, REACH, AD 2000 |
Nickel 200 Flange Specifications
| Specification | Details |
|---|---|
| Standard | ASTM B564, ASME B16.5, DIN 2573/2576 |
| Size Range | ½” to 24” (DN15 – DN600) |
| Pressure Rating | 150# to 2500# |
| Face Type | RF, FF, RTJ (Raised Face, Flat Face, Ring Type Joint) |
| Form | Forged, Machined, Annealed |
Nickel 200 Flange Types and Their Uses
| Flange Type | Description | Application |
|---|---|---|
| Weld Neck Flange (WNRF) | Long tapered hub welded to pipe | High-pressure systems |
| Slip-On Flange (SORF) | Slides over pipe and fillet welded | Low-pressure lines |
| Blind Flange | Closes ends of piping systems | Pressure testing, maintenance |
| Lap Joint Flange | Used with stub ends, allows alignment | Corrosive environments |
| Threaded Flange | Used for threaded pipes without welding | Temporary lines, small pipe sizes |
Manufacturing Process Overview
1. Forging: Nickel 200 billets are hot-forged into flange shapes to enhance strength and grain uniformity.
2. Machining: CNC and lathe operations shape the flange dimensions and ensure tight tolerances.
3. Heat Treatment: Annealing removes internal stress and increases corrosion resistance.
4. Inspection: Flanges are tested for dimensions, hardness, mechanical properties, and surface finish per ASTM B564.
5. Packaging: Each flange is marked with grade and heat number, packed with anti-rust coating and shipped in wooden boxes or crates.
Related Questions and Answers
What standards are followed for Nickel 200 flanges?
Nickel 200 flanges are typically manufactured according to ASTM B564, ASME B16.5, B16.47, and DIN or EN specifications depending on the target market.
Can I get customized flange sizes from manufacturers?
Yes. Most manufacturers provide custom-sized flanges and special types such as orifice, ring-joint, and reducing flanges upon request.
Which countries produce the most Nickel 200 flanges in 2025?
India and China lead in high-volume production, while Germany, the USA, and the UK specialize in precision and certified export-quality flanges.
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