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In addition to iron, carbon and a small amount of unavoidable silicon, manganese, phosphorus and sulfur elements, steel also contains a certain amount of alloying elements. The alloying elements in steel include one or more of silicon, manganese, molybdenum, nickel, alum, titanium, niobium, boron, lead, rare earth, etc. This kind of steel is called special alloy steel. Nickel-based alloy is a special alloy steel. This page mainly introduces the basic information of Inconel 600, Monel 400, Nickel 200, Nickel 201 and other four nickel pipes.
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Comparison of corresponding grades of Chinese and foreign nickel pipe standards |
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Category |
GB |
ASTM |
ISO |
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Pure Nickel |
N5 |
N02201 (Nickel 201) |
NW2201 |
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N7 |
N02200 (Nickel 200) |
NW2200 |
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Nickel Copper Series |
NCu30 |
N04400 (Monel 400) |
NW4400 |
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Nickel-chromium-iron series |
NCr15-8 NS3102 |
N06600 (Inconel 600) |
NW6600 |
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Chemical Composition of nickel tube |
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Alloy Grade |
Chemical composition (mass fraction) % |
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Ni+Co |
Cu |
Si |
Mn |
C |
S |
Fe |
Cr |
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N02201 (Nickel 201) |
99.0 |
0.25 |
0.35 |
0.35 |
0.02 |
0.01 |
0.40 |
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N02200 (Nickel 200) |
99.0 |
0.25 |
0.35 |
0.35 |
0.15 |
0.01 |
0.40 |
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N04400 (Monel 400) |
63.0 |
28.0~34.0 |
0.5 |
2.0 |
0.3 |
0.024 |
2.5 |
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N06600 (Inconel 600) |
Ni≥72.0 |
0.5 |
0.5 |
1.0 |
0.15 |
0.015 |
6.0~10.0 |
14.0~17.0 |
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Mechanical properties of nickel pipe |
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Grade |
Wall thickness/mm |
State |
Tensile strength Rm/MPa ≥ |
Yield Strength RP0.2/MPa |
Elongation after break/% ≥ |
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A50mm |
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N02201 (Nickel 201) |
all specifications |
M |
345 |
80 |
35 |
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all specifications |
Y0 |
415 |
205 |
15 |
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N02200 (Nickel 200) |
all specifications |
M |
380 |
105 |
35 |
|
all specifications |
Y0 |
450 |
275 |
15 |
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N04400 (Monel 400) |
all specifications |
M |
480 |
195 |
35 |
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all specifications |
Y0 |
585 |
380 |
15 |
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N06600 (Inconel 600) |
all specifications |
M |
550 |
240 |
30 |
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The elongation after fracture of hard (Y) nickel and nickel alloy pipes with outer diameter less than 18mm and wall thickness less than 0.90mm is for reference only. |
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Allowable stress of nickel tube |
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Grade |
S value/MPa |
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Soft State |
Stress Relief |
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N02201 (Nickel 201) |
55 |
105 |
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N02200 (Nickel 200) |
70 |
110 |
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N04400 (Monel 400) |
120 |
145 |
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Grades, Conditions and Specifications of Nickel Pipes |
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Grade |
State |
Specifications/mm |
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Outer Diameter |
Wall Thickness |
Length |
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N02201 (Nickel 201) N02200 (Nickel 200) |
Soft state (M) Stress relief state (Yo) |
5~110 |
1.00~8.00 |
100~15000 |
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N06600 (Inconel 600) |
Soft state (M) |
12~80 |
1.00~3.00 |
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N04400 (Monel 400) |
Soft state (M) Stress relief state (Yo) |
10~110 |
1.00~8.00 |
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Applications:
- Inconel 600 pipes are resistant to high temperature oxide medium corrosion, stress corrosion and alkali corrosion. Inconel 600 pipe is suitable for heat treatment and chemical processing industrial installations, nuclear power and automotive engineering.
- Both Nickel 200 pipe and Nickel 201 pipe have good mechanical properties and corrosion resistance, and are suitable for caustic soda and synthetic fibers and food processing.
- Monel 400 pipe has high strength and excellent resistance to seawater medium, acid and alkali properties of dilute hydrofluoric acid and sulfuric acid. Monel 400 pipes are suitable for use in marine and marine engineering, salt production, feed water heater tubes, chemical and oil and gas processing.
