ASTM B161 N02201 Seamless Pipe Manufacturer & Supplier
As a trusted ASTM B161 N02201 Seamless Pipe Manufacturer,We specialize in the production and supply of Nickel 201 (UNS N02201) seamless pipes and tubes, manufactured according to ASTM B161 specifications for high-performance and corrosion-resistant applications in chemical processing, marine, and electronics industries.
ASTM B161 UNS N02201 Seamless Pipes
Nickel 201 is a low-carbon (≤0.02%) variant of commercially pure nickel (Nickel 200), offering excellent resistance to alkalis and acidic environments while preventing embrittlement caused by intergranular carbon precipitation. It is ideal for high-temperature, high-purity, and non-magnetic applications.
N02201 Pipe Specifications
| Standard | ASTM B161 / ASME SB161 |
|---|---|
| Grade | UNS N02201 (Nickel 201) |
| Type | Seamless Pipe |
| Size Range | 6 mm to 250 mm OD (1/8″ to 10″), thickness as required |
| Length | Single, Double, or Cut Length (up to 12 meters) |
| Condition | Annealed (Soft) or as specified |
| Surface Finish | Bright Annealed / Polished / Pickled |
| Certification | EN 10204 3.1 / 3.2, NACE MR0175, ISO, PED |
Chemical Composition (UNS N02201)
| Element | % Content |
|---|---|
| Nickel (Ni) | ≥ 99.0 |
| Carbon (C) | ≤ 0.02 |
| Iron (Fe) | ≤ 0.40 |
| Manganese (Mn) | ≤ 0.35 |
| Sulfur (S) | ≤ 0.01 |
| Silicon (Si) | ≤ 0.35 |
| Copper (Cu) | ≤ 0.25 |
Mechanical Property of N02201
| Condition and Size | Tensile Strength, min, psi (MPa) – Low-Carbon Nickel (UNS N02201) | Yield Strength (0.2% offset), min, psi (MPa) – Low-Carbon Nickel (UNS N02201) | Elongation in 2 in. or 50 mm (or 4 D), min, % – Low-Carbon Nickel (UNS N02201) |
|---|---|---|---|
| Annealed: 5 in. (127 mm) and under outside diameter | 50 000 (345) | 12 000 (80) | 35 |
| Annealed: Over 5 in. (127 mm) in outside diameter | 50 000 (345) | 10 000 (70) | 40 |
| Stress-Relieved: All sizes | 60 000 (415) | 30 000 (205) | 15 |
Mechanical Properties^(A) of Small – Diameter and Thin – Wall Tube (Converter Sizes)
| Condition | Tensile Strength, psi (MPa) | Yield Strength (0.2% offset), min, psi (MPa) | Elongation in 2 in. or 50 mm, min, % |
|---|---|---|---|
| Nickel UNS N02200 – Annealed^B,C,D,E,F | 75 000 (515) max | 15 000 (105) | 33 |
| Nickel UNS N02200 – Half – hard^C | 80 000 (550) min | 40 000 (275) | 12 |
| Nickel UNS N02200 – Full hard^D | 95 000 (655) min | 75 000 (515) | 4 |
| Low – Carbon Nickel UNS N02201 – Annealed^B | 70 000 (480) max | 12 000 (85) | 35 |
| Low – Carbon Nickel UNS N02201 – Half – hard^C | 75 000 (515) min | 30 000 (205) | 12 |
| Low – Carbon Nickel UNS N02201 – Full hard^D | 80 000 (550) min | 65 000 (450) | 4 |
| ^A Not applicable to outside diameters under ¹/₈ in. (3.2 mm) and wall thicknesses under 0.015 in. (0.38 mm). ^B This condition is sometimes designated as “No. 1 Temper”. ^C This condition is sometimes designated as “No. 2 Temper”. ^D This condition is sometimes designated as “No. 3 Temper”. |
Permissible Variations for Small – Diameter and Thin – Wall Tube (Converter Sizes)
| Specified Outside Diameter, in. (mm) | Outside Diameter | Inside Diameter | Wall Thickness, % | |||
|---|---|---|---|---|---|---|
| Plus | Minus | Plus | Minus | Plus | Minus | |
| Under ³/₃₂ (2.4) | 0.002 (0.05) | 0 | 0 | 0.002 (0.05) | 10 | 10 |
| ³/₃₂ to ⁵/₁₆ (2.4 to 4.8), excl | 0.003 (0.08) | 0 | 0 | 0.003 (0.08) | 10 | 10 |
| ⁵/₁₆ to ½ (4.8 to 12.7), excl | 0.004 (0.10) | 0 | 0 | 0.004 (0.10) | 10 | 10 |
| ½ to 1¼ (12.7 to 31.8), incl | 0.005 (0.13) | 0 | 0 | 0.005 (0.13) |
Applications of N02201 Pipes
- Caustic soda and alkali production
- Electronics (semiconductor manufacturing)
- Food processing
- Heat exchangers and condensers
- Marine and offshore equipment
- Reactors and process vessels
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