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Grade 201 Technical Overview
Nickel 201 (UNS N02201) is the low-carbon version of Nickel 200. It is commercially pure wrought nickel with a maximum carbon level of 0.02%. This low carbon content prevents the material from being embrittled by intergranular carbon (graphitization) at temperatures above 315°C (600°F). Grade 201 is preferred over Nickel 200 for applications involving temperatures exceeding 315°C. Like Nickel 200, it offers high thermal and electrical conductivity, excellent resistance to caustic alkalis, and superior corrosion resistance in various media. Steel Emporium specializes in high-quality Nickel 201 pipes and tubes for critical thermal and chemical processes.
Key Advantages of Nickel 201
Thermal Stability
Does not suffer from graphitization at temperatures above 600°F.
Chemical Resistance
Highly resistant to caustic soda and halogen gases like fluorine.
High Ductility
Easily formed by both hot and cold working methods.
| Grade | Ni (Minimum) | C (Maximum) | Fe | Mn | Si | Cu | S |
|---|---|---|---|---|---|---|---|
| Nickel 201 | 99.0% | 0.02% | 0.40% max | 0.35% max | 0.35% max | 0.25% max | 0.01% max |
| Property | Nominal Value |
|---|---|
| Tensile Strength (MPa) | 403 MPa (58,500 psi) |
| Yield Strength 0.2% Offset (MPa) | 103 MPa (15,000 psi) |
| Elongation (% in 50mm) | 50% |
| Hardness (Rockwell B) | 40-50 HRB |
| Property | Value |
|---|---|
| Density (kg/m³) | 8890 kg/m³ |
| Melting Point (°C) | 1435 - 1446 °C |
| Specific Heat (J/kg·°C) | 456 |
| Thermal Conductivity (W/m·°C) | 79.3 |
| Electrical Resistivity (µΩ·m) | 0.085 |
| Standard | UNS Number | Werkstoff No. | Common Name |
|---|---|---|---|
| Nickel 201 | N02201 | 2.4061 / 2.4068 | Alloy 201 / Pure Nickel LC |
| Nominal Size (NB) | OD (mm) | SCH 10 (kg/m) | SCH 40 (kg/m) | SCH 80 (kg/m) |
|---|---|---|---|---|
| 1/2" | 21.34 | 1.41 | 1.80 | 2.35 |
| 3/4" | 26.67 | 1.88 | 2.45 | 3.23 |
| 1" | 33.40 | 2.32 | 3.60 | 4.72 |
| 1.5" | 48.26 | 3.45 | 5.68 | 7.90 |
| 2" | 60.33 | 4.37 | 6.05 | 8.32 |
Industrial Applications
Chemical Industry
Production vessels for caustic soda at high temp.
Laboratory Use
Combustion boats and furnace linings.
Electronics
Lead wires and battery components.