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Nickel 200 (UNS N02200) Ni 99.0 C 0.15

Commercially pure wrought nickel, good mechanical properties, excellent resistance to many corrosives. Nickel 201 has low carbon (0.02% max.) for applications over 600 ºF (315 ºC).

Food processing equipment, chemical shipping drums, caustic handling equipment and piping, electronic parts, aerospace and missile components, rocket motor cases, magnetostrictive devices

Commercially pure wrought Nickel with good mechanical properties over a wide range of temperature and excellent resistance to many corrosives, in particular hydroxides.

Good resistance to corrosion in acids and alkalis and is most useful under reducing conditions.
Unit of Measure

Specifications

Type

 N/A Bar

Size

 N/A 1.750 in

Alloy

 N/A 200

Physical

Density

 N/A 0.321 lb/in³

Specific Heat

 N/A 0.109 Btu/lb ºF

Curie Temperature

 N/A 680 ºF

Melting Range

 N/A 2615 to 2635 ºF

Thermal Expansion Coefficient at 70 to 200 Degree Fahrenheit (ºF)

 N/A 4.7 x 10-6 in/in/ºF

Mechanical

Mechanical Type

 N/A Cold Drawn

Tensile Strength

 N/A 65 to 110 ksi

Yield Strength

 N/A 40 to 100 ksi

Elongation

 N/A 35 to 10 %

Hardness

 N/A B75 - 98

Nominal Chemistry

Minimum Nickel (Ni)

 N/A 99.0

Maximum Iron (Fe)

 N/A 0.4

Maximum Copper (Cu)

 N/A 0.25

Maximum Manganese (Mn)

 N/A 0.35

Maximum Silicon (Si)

 N/A 0.35

Maximum Carbon (C)

 N/A 0.08

Other

 N/A S 0.01 max

General Resistance

General Resistance

 N/A Corrosion

Unified Numbering System (UNS)

 N/A N02200

Werkstof

 N/A 2.4066

Pipe/Tube USA

 N/A B161

Pipe/Tube Wkstf

 N/A 17740

Sheet/Plate USA

 N/A B162

Sheet/Plate Wkstf

 N/A 17750

Bar/Rod USA

 N/A B160

Bar/Rod Wkstf

 N/A 17752

Fitting USA

 N/A B163

Forging USA

 N/A B564

Weld Wire

 N/A ERNi-Cl

Weld Electrode

 N/A ENi-1

Machinability Ratings

Speed Surface

 N/A 65 ft/mm

Speed Percent (%) of B1112

 N/A 40

Note

 N/A These machinability ratios must be recognized as approximate values. They are a reasonable guide to relative tool life and lower required for cutting. It is obvious, however, that variables of speed, cutting oil, feed and depth of cut will significantly affect these ratios.

Machining Section

N/A The alloys described here work harden rapidly during machining and require more power to cut than do the plain carbon steels. The metal is 'gummy', with chips that tend to be stringy and tough. Machine tools should be rigid and used to no more than 75% of their rated capacity. Both work piece and tool should be held rigidly; tool overhang should be minimized. Rigidity is particularly important when machining titanium, as titanium has a much lower modulus of elasticity than either steel or nickel alloys. Slender work pieces of titanium tend to deflect under tool pressures causing chatter, tool rubbing and tolerance problems.

Make sure that tools are always sharp. Change to sharpened tools at regular intervals rather than out of necessity. Titanium chips in particular tend to gall and weld to the tool cutting edges, speeding up tool wear and failure. Remember- cutting edges, particularly throw-away inserts, are expendable. Don't trade dollars in machine time for pennies in tool cost.

Feed rate should be high enough to ensure that the tool cutting edge is getting under the previous cut thus avoiding work-hardened zones. Slow speeds are generally required with heavy cuts. Sulfur chlorinated petroleum oil lubricants are suggested for all alloys but titanium. Such lubricants may be thinned with paraffin oil for finish cuts at higher speeds. The tool should not ride on the work piece as this will work harden the material and result in early tool dulling or breakage. Use an air jet directed on the tool when dry cutting, to significantly increase tool life.

Lubricants or cutting fluids for titanium should be carefully selected. Do not use fluids containing chlorine or other halogens (fluorine, bromine or iodine), in order to avoid risk of corrosion problems. The speeds are for single point turning operations using high speed steel tools. This information is provided as a guide to relative machinability, higher speeds are used with carbide tooling.

Applications

N/A

  • Manufacture and handling of sodium hydroxide, particularly at temperature above 300 ºC.
  • Production of viscose rayon. Manufacture of soap.
  • Aniline hydrochloride production and in the chlorination of aliphatic hydrocarbons such as benzene, methane and ethane.
  • Manufacture of vinyl chloride monomer.
  • Storage and distribution systems for phenol immunity from any for of attack ensures absolute product purity.
  • Reactors and vessels in which fluorine is generated and reacted with hydrocarbons

Additional Information

Additional Information

 N/A Outstanding resistance to caustic alkalis up to and including the molten state. In acid, alkaline and neutral salt solutions the material shows good resistance, but in oxidizing salt solutions severe attack will occur. Resistant to all dry gases at room temperature and in dry chlorine and hydrogen chloride may be used in temperatures up to 550 ºC. Resistance to mineral acids varies according to temperature and concentration and whether the solution is aerated or not. Corrosion resistance is better in de-aerated acid.