200

Nickel 200/201

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Product Description

Nickel 200/201

Nickel 200/201

Nickel 200/201 is an unalloyed wrought nickel which have excellent resistance to many corrosive media from acid to alkaline.
•excellent corrosion resistance in many alkaline media
•good mechanical properties within a wide range of temperatures
•magnetization decreasing continuously between -273 and 360 ℃and showing paramagnetism

 
Density: 8.89
Corrosion resistance

Nicel 200 and Nickel 201 have excellent resistance to many corrosive media from acid to alkaline. They are most useful under reducing conditions but, where a passive oxide is formed, they may also be used in oxidizing conditions. Their most significant property is extremely high resistance to caustic alkalies up to and including the molten state. The extra-low carbon content of Alloy 201 gives virtual mmunity to intergranular attack above about 315 ℃. The presence of chlorates must be kept to a minimum, as they accelerate the rate of attack. The resistance of Nickel 200 and Nickel 201 to mineral acids varies according to temperature and concentration and whether or not the solution is aerated. Corrosion resistance is better in deaerated acid. In acid, alkaline and neutral salt solutions, Nickel 200 and Nickel 201 show good resistance, but severe attack occurs in oxidizing salt solutions. Both alloys are resistant to all dry gases at room temperature. The low-carbon alloy can be used in dry chlorine and hydrogen chloride at temperatures up to 550 ℃.

 
Applications of Nickel 200/201:

Unalloyed wrought nickel combines excellent mechanical properties with good corrosion resistance. Above 300 ℃ working temperature, the low-carbon version is generally used. The limited carbon content lowers mechanical property values and work-hardening rate but promotes ductility.
Typical applications are:
•food production, such as handling of cooling brines, fatty acids and fruit juices resistance to acid, alkaline and neutral salt solutions and to organic acids.
•vessels in which fluorine is generated and reacted with hydrocarbons resistance to fluorine
•storing and transportation of phenol immunity from any form of attack ensures absolute product purity
•manufacture and handling of sodium hydroxide, particularly at temperatures above 300 ℃.
•Industrial processes where sodium hydroxide is typically used, involve:
•production of hydrochloric acid and chlorination of hydrocarbons such as benzene, methane and ethane resistance at elevated temperatures to dry chlorine and hydrogen chloride
•manufacture of vinyl chloride monomer resistance to hydrogen chloride at elevated temperatures

 
Chemical composition

 Ni  Fe  C  Mn  Si  Cu  Mg  Ti  S
 200  >99.0  <0.40  <0.15  <0.35  <0.35  <0.25  <0.01
 201  >99.0  <0.40  <0.02  <0.35  <0.35  <0.25  <0.01

Mechanical properties

 Condition  Yield Strength(Mpa)  Tensile Strength(Mpa)  Elongation(%)  Hardness(HB)
 ASTM Min Value  Soft Annealed  105  380  40
 Typical Values at RT  Hot Worked  196  431  50  90
 Typical Values at RT  Cold Worked  490  588  25  160
 Typical Values at RT  Soft Annealed  147  490  50  90

International Specification Comparison chart

 Material  Round Bar  Plate  Pipe
 Seamless  Welded
 ASTM  UNS
N02200
 UNS  B160  B162  B161/163  B725-730
 ASME  N02201  SB160  SB162  SB161-163
 JIS  NW2200  NW2201  H4553  H4551  H4552
 DIN  2.4066  2.4068  17752 17750 17751 17751

Product: Sheet, Coil, Pipe, Bar, Wire and Forgings