Nickel 200 pipe is composed majorly by Nickel, which exhibits good mechanical properties. It also offers excellent resistance to corrosion in almost all corrosion environments. UNS N02200 clad pipe comprises 99% Nickel, 0.4% Iron, 0.01% Sulphur, 0.15% Carbon, 0.35% Manganese, 0.35% Silicon, 0.25% Copper.
This is one of the reasons why it is acceptable by variety of processing equipment, mainly to maintain product purity for food handling and alkalis. Additionally, chemical composition and its unique properties make it easily fabricable and highly resistive to rusting.
Because of low carbon content, alloy 200 pipe is mainly suitable for combustion boats for forming process, which is done by deep drawing and spinning into combustions. On the contrary, since this material is restrained to temperature levels up to 600° F, it is selected as the only material for caustic salt evaporators.
Very important to note that extended exposure of Nickel 200 above 600 ° C can lead to formation of graphite. It can also be used in a variety of situations, which constitute, anode plates, passive cathodes and many more. They are also found in optical systems, such as the ones used in telescope, and an ideal material for camera and surveillance systems.
Alloy 200 pipe
Nickel Alloy 200 welded pipe
Nickel 200 seamless pipe
To further enhance the mechanical properties, we increase the annealing temperature of nickel 200 welded pipe. Hardness, ductility and toughness are the factors which are considered as mechanical properties. This procedure allows the stress, which is internal, to redistribute. This is also accountable for the reduction of residual stress from welding, and enhance grain growth and recrystallization. Adding to this, it also promotes grain growth, which results in fewer grain boundaries.
Another advantage obtained by increasing the temperature is that it results in the formation of stain-free grains within the material, which enhances mechanical properties. Because it provides excellent resistance to thermal and electric conductivity, it enhances the softening process. But high-level temperature also comes with some disadvantages. This includes, grain coarsening and reduced mechanical properties. Hence, it is important to first determine the desired properties and characteristics of the material before increasing the annealing temperature.
|0.5 to 8 inch||6 to 12 meter||sch 10 to sch 80|
|ASTM B161 | ASME SB161||seamless, welded, hot rolled, annealed||Aerospace components, food processing|
Ni200 annealed pipe
UNS N02200 clad pipe
DIN 2.4066 exhaust pipe
|Tensile Strength||Psi – 21,500 , MPa – 148|
|Melting Point||1446 °C (2635°F)|
|Yield Strength (0.2%Offset)||Psi – 67,000 , MPa – 462|
One of the reasons why Ni200 pipe is used is because it provides excellent mechanical properties. Adding to this, it provides good corrosion resistance to almost all corrosive scenarios or environments. Another advantage of using this material in pipes is that it can be easily fabricated and is a solution to corrosion resistive environment.
These properties are exhibited mainly because it contains pure 99% Nickel with small amounts of Iron, Sulphur, Carbon, Manganese, Silicon and Copper.
There are distinctive differences between both nickel 200 seamless pipe and welded pipe right from their manufacturing. As the name suggests, seamless pipe is extruded and drawn from a billet. Through second die, the tube is cooled to achieve the desired pipe parameters and thickness of wall. This way, it becomes easy for producing small-diameter pipes with thin walls. On the other hand, nickel 200 seam welded pipe is produced by heating and shaping steel sheets into desired pipe shapes and then joining the edges of the pipe by the help of welding.
Unlike 200 Nickel seamless, this material is suitable for the production of large-diameter pipes with thick walls. When considering cost efficiency, welded tubes are less expensive than seamless tube. Seamless tube is not considered as a solution to working pressure conditions because working pressure of seamless tubes are less than welded tubes. Adding to this, drawing welded tubes reduce much anomalies.
Because it is made purely of Nickel, although containing other components in small amounts, nickel alloy 200 annealed pipe is used mainly in processing equipment, mainly because of maintaining purity in handling foods, synthetic fibres and alkalis.
This also indicates that they do not require much high temperature and can work well within or up to 600 ° C. They are also used in these above-mentioned industries as they require materials which exhibit high tensile strength and are highly durable.
|Specification||Description||Manufacture Method||Pipe Size||Schedule|
|ASTM B161||3 SCH 40||SEAMLESS & DRAWN||3||40|
|2 SCH 40||2||40|
|1/2 SCH 80||0.5||80|
|4 SCH 10||4||10|
|Modulus of Elasticity||Density||Coefficient of Expansion||Melting Point||Modulus of Rigidity|
|29588 ksi||0.321 lb/in³||7.4 x 10-6 in/in °F (70 – 212 °F)||2635 °F||11748 ksi|
|204 kN/mm²||8.89 g/cm³||13.3 μm/m °C (20 – 100 °C)||1446 °C||81 kN/mm²|
|WELDING ELECTRODES||Nickel Electrode 141|
|FILLERS||Nickel Filler Metal 61|
|Temperature||Thermal Conductivity||Coefficient of Expansiona||Electrical Resistivity|
|°F||Btu•in/ft2•h•°F||10-6 in/in•°F||ohm•circ mil/ft|
|Poisson’s Ratio||Young’s Modulus||Temperature||Shear Modulus||Poisson’s Ratio||Young’s Modulus||Temperature||Shear Modulus|
|103 ksi||°F||103 ksi||GPa||°C||GPa|
|Condition||Hardness, Brinell (3000 kg)||Izod||Charpy V||Charpy Torsion||Charpy Tension|
|ft-lb||J||ft-lb/ sq in.||J/ mm2||ft-lb||J|| Twist, |
|ft-lba||J||Elong. in |
3.54 in. (89.9
|Reduction of Area, |
|24% Reduction, Stress-Relieved||177||120||163||966||2.03||204||277||35||47||102||88||119||19.5||71.2|
|Annealed at 1350°F (732°C)/3 hr||109||120||163||980||2.06||228||309||29||39||103||113||153||33.0||75.1|
704°C (1300°F) and 871°C (1600°F)
649°C (1200°F) and 1232°C (2250°F)
ASTM B 161, ASME SB161