Nickel 200 Flange
Nickel 200 flanges are made from commercially pure wrought nickel (99.6% Ni), offering excellent mechanical properties and superior resistance to corrosive environments. These flanges are widely used in chemical processing, marine engineering, aerospace, and other industrial applications requiring high performance and durability.
Nickel 200 Flange Specifications:
- Material: Nickel 200 (UNS N02200)
- Standards: ASTM B564, ASME SB564
- Sizes: 1/2" to 24" (Custom sizes available)
- Pressure Ratings: Class 150 to 2500
- Types: Slip-On, Weld Neck, Blind, Threaded, Socket Weld, Lap Joint, and Orifice Flanges
- Face Type: Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)
- Manufacturing Process: Forged, Heat-Treated, and Machined
Nickel 200 Chemical Composition:
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 99.0 min |
| Iron (Fe) | 0.40 max |
| Manganese (Mn) | 0.35 max |
| Carbon (C) | 0.15 max |
| Silicon (Si) | 0.10 max |
| Sulfur (S) | 0.01 max |
| Copper (Cu) | 0.25 max |
Nickel 200 Mechanical Properties:
| Property | Value |
|---|---|
| Tensile Strength | 462 MPa (67 ksi) |
| Yield Strength (0.2% Offset) | 148 MPa (21.5 ksi) |
| Elongation (%) | 45 min |
| Hardness (Rockwell B) | 45 max |
Nickel 200 Physical Properties:
| Property | Value |
|---|---|
| Density | 8.89 g/cm³ |
| Melting Point | 1435°C (2615°F) |
| Thermal Conductivity | 67.2 W/m-K |
| Electrical Resistivity | 9.8 µΩ-cm |
Possible Alternative Grades:
| Alternative Grade | Equivalent Material |
|---|---|
| Nickel 201 | Lower carbon version for higher temperature applications |
| Monel 400 | Higher strength and corrosion resistance in seawater applications |
Chemical Formula:
Ni (Nickel): Approximately 99.6% pure nickel composition.
Grade Specification Comparison:
| Standard | Nickel 200 |
|---|---|
| UNS | N02200 |
| ASTM | B564 |
| ASME | SB564 |
| EN | 2.4066 |
| JIS | NW 2200 |
Corrosion Resistance:
Nickel 200 flanges exhibit exceptional resistance to a variety of corrosive environments, including:
- Alkaline solutions: Excellent resistance to caustic soda and potassium hydroxide.
- Acidic conditions: Good resistance to organic and mild inorganic acids.
- Seawater & Brine: Moderate corrosion resistance in marine environments.
- High-temperature oxidation: Performs well in oxidizing atmospheres.
Heat Resistance:
Nickel 200 maintains its mechanical strength and oxidation resistance at high temperatures up to 600°C (1112°F), making it suitable for heat exchanger and furnace components.
Heat Treatment:
The heat treatment process for ASTM A182 F55 Super Duplex Stainless Steel includes:
- Annealing Temperature: 760–1050°C (1400–1920°F)
- Heat-treated to relieve stress and improve mechanical properties.
- Slow cooling to avoid embrittlement.
Welding:
Nickel 200 flanges offer excellent weldability using conventional welding techniques such as:
- TIG (GTAW)
- MIG (GMAW)
- Submerged Arc Welding (SAW)
- Shielded Metal Arc Welding (SMAW)
- Weld Electrodes: Use Nickel 141, 182, or equivalent.
Fabrication:
Nickel 200 can be easily fabricated using standard forming, machining, and forging techniques:
- Cold Working: Increases mechanical strength.
- Hot Working: Performed at 870-1230°C (1600-2250°F).
- Machinability: Requires low cutting speeds and high lubrication.
Applications:
- Oil and Gas Pipelines
- Water Treatment Plants
- Petrochemical
- Construction
- Pressure Vessels
- Phosphate Mining