Nickel 201
Nickel 201 is the low-carbon version of Nickel 200. Its restricted carbon content makes it preferred for elevated-temperature service where graphitization of Nickel 200 could be a concern.
Nickel 201 Information
Nickel 201 is the low-carbon version of Nickel 200. Its restricted carbon content makes it preferred for elevated-temperature service where graphitization of Nickel 200 could be a concern.
Metallic winding and compatible ring components where service conditions are suitable.
| UNS Number | N02201 |
|---|---|
| Correct Spelling | Nickel 201 |
| Material Type | Low-carbon commercially pure wrought nickel |
| Common / Applicable Specification | ASTM B162 (plate/sheet/strip) |
| Typical Gasket Use | Metallic winding and compatible ring components where service conditions are suitable. |
Nickel 201 Chemical Composition
Reference composition limits are shown below. Exact requirements should be confirmed against the applicable product specification and certified material documentation.
| Element / Constituent | Symbol | Composition / Information |
|---|---|---|
| Nickel + Cobalt | Ni+Co | 99.0 min. |
| Carbon | C | 0.02 max. |
| Copper | Cu | 0.25 max. |
| Iron | Fe | 0.40 max. |
| Manganese | Mn | 0.35 max. |
| Silicon | Si | 0.35 max. |
| Sulfur | S | 0.010 max. |
Nickel 201 Mechanical Properties
Reference room-temperature properties are shown for a commonly supplied condition. Exact requirements depend on product form, size, heat treatment and governing specification.
| Property | Reference Value | Unit / Basis |
|---|---|---|
| Tensile Strength | Typical annealed ≈345–520 | MPa |
| 0.2% Offset Yield Strength | Typical annealed ≈80–150 | MPa |
| Elongation | Typical annealed ≈40 | % |
Values shown are engineering reference data, not universal design allowables. Final procurement and design must use the governing specification, exact product form/condition and certified material test documentation.
Nickel 201 Physical & Service Information
Reference physical properties and service considerations relevant to material selection for Spiral Wound Gaskets.
| Density | Approx. 8.89 g/cm³ |
|---|---|
| Structure | Low-carbon commercially pure nickel |
| Corrosion Behaviour | Excellent resistance to caustic alkalis and many reducing media. |
| Temperature Note | Low carbon improves suitability for elevated-temperature service compared with Nickel 200. |
| Service Selection | Use certified product data for exact mechanical properties and temperature limits. |
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