Precision Tube Hastelloy C-2000| UNS N06200
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Nickel 201 Precision Tube (UNS N02201)
Nickel 201 tube is a high-purity nickel alloy tube with excellent corrosion resistance and reduction resistance. It is particularly suitable for some extreme environments, such as high temperature, strong acid and alkaline conditions.
Description
Nickel 201 is a deformed nickel alloy belonging to the commercial pure nickel series, containing more than 99.6% nickel, supplemented by carbon, manganese, silicon and other elements.
Nickel 201 is a low-carbon variant of Nickel 200. Compared with Nickel 200, Nickel 201 has better corrosion resistance at temperatures above 300℃ (570℉) and is more suitable for use in high temperature environments.
Why is Nickel 201 more suitable for high temperature environments than 200?
The main difference between the two is the chemical composition. Nickel 200 contains 0.15% carbon, while Nickel 201 has a very low carbon content of only 0.02%.
|
Grade |
Ni |
Cu |
Fe |
Mn |
C |
Si |
S |
|
Nickel 200 |
≥99.0 |
≤0.25 |
≤0.40 |
≤0.35 |
≤0.15 |
≤0.35 |
≤0.01 |
|
Nickel 201 |
≥99.0 |
≤0.25 |
≤0.40 |
≤0.35 |
≤0.02 |
≤0.35 |
≤0.01 |
In high temperature environment, the carbon in nickel material will diffuse and easily form carbides with other metal elements (such as iron and chromium), which will weaken the grain boundary of the material, make the material brittle, and affect its structural integrity; at the same time, the precipitation of carbides will also cause intergranular corrosion, especially in acidic or reducing atmospheres, nickel materials at high temperatures are more susceptible to corrosion.
The low carbon content of Nickel 201 reduces the precipitation of carbides, can maintain structural stability at high temperatures, and is not easy to brittle, thereby extending the service life of the material in high temperature environments; effectively avoid intergranular corrosion and have higher corrosion resistance.
Mechanical Properties of Nickel 201 Precision Tube
|
Temper |
Tensile Strength |
Yield Strength |
Elongation |
Hardness |
|
Annealed |
345-485 MPa |
70-195 MPa |
40-60% |
≤62 HRB |
|
Stress Relieved |
415-725 MPa |
205-585 MPa |
15-35% |
70-95 HRB |
Physical Properties of Nickel 201 Precision Tube
Density: 8.89 g/cm3
Melting point: 1435-1446℃
|
Coefficient of Thermal Expansion (at 100℃) |
Thermal Conductivity (at room temp.) |
Resistivity (at room temp.) |
Elastic Modulus |
Specific Heat Capacity (at room temp.) |
|
13.3 μm/m℃ |
67.5 W/m·K |
9.4 µΩ·cm |
207 GPa |
0.444 J/g·K |
Specification
Standard: ASTM B163/ASME SB163
Size
- OD: 1/8”-8”
- WT: 0.5-12.7mm
Delivery status: annealed or stress-relieved
Standard packaging: plastic film + tube cap + wooden box
Advantages
- Excellent resistance to various corrosive media of acid and alkaline nature
- Strong resistance to intergranular corrosion in high temperature environment
- High resistance to caustic alkali
- Good magnetostrictive properties
- High electrical and thermal conductivity
- Good ductility and low work hardening rate
- Good welding characteristics
Applications
- Chemical processing industry
- Aerospace industry
- Food processing industry
- Pharmaceutical industry
Equivalent Grade of Nickel 201 Tube
|
Grade |
ASTM |
DIN |
GB |
JIS |
AFNOR |
BS |
|
Nickel 201 |
UNS N02201 |
W. Nr. 2.4068 |
N4 |
NW2201 |
N-100M |
NA12 |
Applicable Testing
- Chemical composition
- Mechanical properties
- Dimension and appearance testing
- Expansion test
- Hydrostatic test or non-destructive electric test
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