Kalpataru Piping manufactures and supplies Nickel Alloy Flanges for piping systems exposed to corrosive media, elevated temperatures, and demanding industrial service conditions. These flanges are available in nickel grades such as Nickel 200 and Nickel 201, with material selection based on the operating environment and required corrosion resistance. Manufactured to applicable ASTM and ASME requirements, Nickel Alloy Flanges can be supplied in different dimensions, pressure classes, and facing configurations to suit specific piping designs.
Our range includes Nickel Weld Neck Flanges, Slip-On Flanges, Blind Flanges, Socket Weld Flanges, Threaded Flanges, Lap Joint Flanges, Orifice Flanges, and Ring Type Joint Flanges. Depending on the application, flange faces can include Raised Face (RF), Flat Face (FF), and Ring Type Joint (RTJ).
Nickel flanges are commonly used in chemical processing, petrochemical plants, power generation, marine systems, heat exchangers, and other applications where resistance to corrosion and temperature is important. Flanges can be supplied with dimensional inspection, material test certificates, PMI, and other documentation according to project requirements. Contact Kalpataru Piping with your required nickel grade, size, pressure class, and flange type for a suitable supply solution.
Table of Contents
- What are Nickel Alloy Flanges?
- Material Grades
- Nickel Alloy Flanges Specification
- Equivalent Grades of Nickel 200 / 201
- Nickel Alloy Flanges Chemical Composition (wt.%)
- Mechanical Properties (Nickel 200 / 201)
- Nickel Flange Working Pressure by Class and Temperature (bar)
- Nickel Alloy Flanges Applications
- Comparison Table: Nickel 200 vs Nickel 201 Flanges
- Certifications & Standards
- FAQ’s About Nickel Alloy Flanges
What are Nickel Alloy Flanges?
Nickel alloy flanges are forged or cast from Nickel 200 (commercially pure nickel) or Nickel 201 (a lower-carbon version better suited to higher temperatures), then machined to standard ASME B16.5 or B16.47 dimensions. Kalpataru Piping manufactures:
- Weld Neck Flanges — for high-pressure, high-temperature, or cyclic-load lines
- Slip-On Flanges — for lower-pressure, easier-to-align connections
- Blind Flanges — for sealing off pipe ends, valves, or vessel openings
- Socket Weld Flanges — for smaller-bore, high-pressure piping
- Lap Joint Flanges — for systems needing frequent disassembly or rotation
- Threaded Flanges — for applications where welding isn’t practical
- Ring Type Joint (RTJ) Flanges — for high-pressure sealing with a metal ring gasket
If your line also needs a weld neck flange or slip-on flange in standard carbon or stainless steel instead, we stock those as well.
Material Grades
Nickel Alloy Flanges Specification
| Specification | Details |
|---|---|
| Material Standard | ASTM B564 / ASME SB564 |
| Nickel Flange Size | 1/2" to 60" |
| Flange Standards | ASME B16.5, ASME B16.47 Series A & B, ASME B16.48, BS 10, BS 4504, EN 1092-1, DIN, GOST, and other applicable standards |
| Pressure Class | Class 150, 300, 600, 900, 1500, 2500; PN6, PN10, PN16, PN25, PN40, PN64 and other applicable pressure ratings |
| Main Types | Weld Neck, Slip-On, Blind, Socket Weld, Threaded, Lap Joint, Orifice and Ring-Type Joint Flanges |
| Manufacturing Type | Forged / Plate, as applicable |
| Flange Faces | Raised Face (RF), Flat Face (FF), Ring-Type Joint (RTJ), Tongue-and-Groove (T&G), Male-and-Female (M&F) |
| Testing & Inspection | Dimensional Inspection, Chemical Analysis, Mechanical Testing, PMI and other applicable tests |
| Inspection Documents | EN 10204 3.1 Material Test Certificate; EN 10204 3.2 and Third-Party Inspection available on request |
| NACE Compliance | NACE MR0103 / MR0175, where applicable to the material grade and service requirements |
| Application | Petroleum, Oil & Gas, Chemical Processing, Power Generation, Marine, Metallurgy, Shipbuilding and Industrial Piping |
Equivalent Grades of Nickel 200 / 201
| Standard | Nickel 200 | Nickel 201 |
|---|---|---|
| UNS | N02200 | N02201 |
| Werkstoff Nr. | 2.4066 | 2.4068 |
| JIS | NW 2200 | NW 2201 |
| BS | NA 11 | NA 12 |
| AFNOR | N-100M | — |
| EN | Ni 99.2 | LC-Ni 99 |
Nickel Alloy Flanges Chemical Composition (wt.%)
| Grade | C | Mn | Si | S | Cu | Fe | Ni |
|---|---|---|---|---|---|---|---|
| Nickel 200 | 0.15 max | 0.35 max | 0.35 max | 0.01 max | 0.25 max | 0.40 max | 99.0 min |
| Nickel 201 | 0.02 max | 0.35 max | 0.35 max | 0.01 max | 0.25 max | 0.40 max | 99.0 min |
Mechanical Properties (Nickel 200 / 201)
| Property | Value |
|---|---|
| Density | 8.9 g/cm³ |
| Melting Point | 1446°C (2635°F) |
| Tensile Strength | Psi – 67,000, MPa – 462 |
| Yield Strength (0.2% Offset) | Psi – 21,500, MPa – 148 |
| Elongation | 45% |
Nickel Flange Working Pressure by Class and Temperature (bar)
| Temp. (°C) | Class 150 | Class 300 | Class 600 | Class 900 | Class 1500 |
|---|---|---|---|---|---|
| -29 to 38 | 20.0 | 51.7 | 103.4 | 155.1 | 258.6 |
| 100 | 17.7 | 51.5 | 103.0 | 154.6 | 257.6 |
| 200 | 13.8 | 48.6 | 97.2 | 145.8 | 243.4 |
| 300 | 10.2 | 42.9 | 85.7 | 128.6 | 214.4 |
| 400 | 5.5 | 35.2 | 70.5 | 105.1 | 175.1 |
| 500 | 2.8 | 28.2 | 37.6 | 56.5 | 84.7 |
Figures above are representative and should be confirmed against the current edition of ASME B16.5 for final design use.
Comparison Table: Nickel 200 vs Nickel 201 Flanges
| Property | Nickel 200 (N02200) | Nickel 201 (N02201) |
|---|---|---|
| Carbon content | 0.15% max | 0.02% max |
| Recommended service temperature | Up to roughly 315°C before graphitization risk | Suited to higher-temperature service |
| Typical use case | General corrosive service at moderate temperature | Applications involving welding or elevated heat |
| Weldability | Good | Better suited to welded high-temperature assemblies |
Types Nickel Flange
High nickel alloy forged flange
High nickel blind flange
Ni socket weld flange
Nickel alloy weld neck flange
Nickel slip on flange
Pure nickel rtj flange
Nickel Alloy Flanges Applications
- Chemical and petrochemical processing plants
- Marine and offshore equipment
- Oil and gas pipelines and refineries
- Power generation and steam systems
- Pharmaceutical and food processing equipment
- Pulp and paper industry
- Water supply and treatment systems
If your process needs a different alloy family for the same flange types, we also supply Monel flanges, Inconel flanges, Incoloy 825 flanges, and Hastelloy flanges.
Certifications & Standards
- ISO 9001:2015 — Quality Management
- ASTM B564 / ASME SB564
- ASME B16.5, ASME B16.47 Series A & B
- BS 4504, BS 10, EN 1092-1, DIN, GOST
- EN 10204 3.1 / 3.2 Mill Test Certificates
FAQ’s About Nickel Alloy Flanges
What's the actual difference between Nickel 200 and Nickel 201 flanges?
Carbon content, mainly. Nickel 200 allows up to 0.15% carbon, which works fine at room and moderate temperatures. Nickel 201 caps carbon at 0.02%, which keeps it more stable at higher temperatures and makes it the better choice for welded assemblies that will see elevated heat in service.
What sizes and pressure classes do you manufacture?
From 1/2″ up to 24″ as standard, larger on request, in pressure classes 150 through 2500 (or PN6 to PN64 for DIN/EN specifications).
Which face type should I specify — FF, RF, or RTJ?
Flat Face suits low-pressure connections, typically against cast-iron mating flanges. Raised Face is the standard choice for most industrial service with a conventional gasket. Ring Type Joint is used where a high-pressure, metal-to-metal seal is required, common in upstream oil and gas applications.
Do you supply nickel flanges in other alloys besides pure nickel?
Yes — alongside Nickel 200/201, we manufacture flanges in Monel 400, Inconel, Incoloy, and Hastelloy, for applications that need a different balance of corrosion resistance and mechanical properties.
What certification do you provide with nickel flanges?
Material Test Certificates per EN 10204 3.1 are provided as standard, with 3.2 and third-party inspection reports available on request for critical applications.
Can nickel flanges handle high-temperature service?
Yes, within limits — Nickel 201 in particular is suited to elevated-temperature service because of its low carbon content. For very high-temperature applications, a nickel-chromium alloy like Inconel is often a better fit.
Do you supply matching fittings in the same nickel grade?
Yes — alongside flanges we also supply buttweld fittings, forged fittings, and compression tube fittings in Nickel 200/201, so a full assembly can come from one supplier.
Need Nickel Alloy Flanges for Your Project?
Send us your size, class, and grade requirement, and our team will respond with a quote and lead time. Contact Kalpataru Piping to get started.
