LION® Nickel alloy 201

Alloy-200201

Nickel 201 (N02201)

Ni 99.0 C 0.02 Cu 0.25 Fe 0.40 Mn 0.35 Si 0.35 S 0.01

High Performance Alloys stocks and produces this grade in the following forms: Bar, sheet, plate, pipe. 

Overview

Commercially pure wrought Nickel with similar properties to Alloy 200 but with a lower carbon content to prevent embrittlement by inter-granular carbon at elevated temperatures.

Characteristics

Good resistance to corrosion in acids and alkalis and is most useful under reducing conditions.
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 oxidising 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 550C.
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.
Virtually immune to inter granular attack above 315C, chlorates must be kept to a minimum.

Applications

Manufacture and handling of sodium hydroxide, particularly at temperature above 300C.
Production of viscose rayon. Manufacture of soap.
Analine hydrochloride production and in the chlorination of aliphatic hydrocarbons such as benzene, methane and ethane.
Manufacture of vinyl chloride monomer.
Reactors and vessels in which fluorine is generated and reacted with hydrocarbons.
Chemical Requirements
NiMnCSiFeCuS
Max0.350.020.350.400.250.01
Min99.0

Physical Properties

Density8.9 g/cm cube
Specific Heat440 J/kg K
Electrical Resistivity8.5 micro ohms cm
Curie Temperature358 C
Melting Range1435-1445 C
Thermal Expansion(106K) 14.3 (20-300 C)

Tensile Data

Mechanical Property Requirements
Ultimate TensileYield Strength (0.2% OS)Elong.R/AHardness
Min50 KSi10 KSi40
Max
Min345 MPa70 MPa
Max

For hot-worked flats 5/16 in.(7.9mm) and under – the elongation shall be 25% min.

MECHANICAL PROPERTIES
Yield StrengthRp 0.2%
20 C Temp80 N/mm sq
100 C70 N/mm sq
200 C65 N/mm sq
300 C60 N/mm sq
400 C55 N/mm sq
Tensile StrengthRM
45N/mm sq
ElongationA5 min
40%

Nickel 201 can be hot formed to almost any shape. The temperature range 1200°F to 2250°F is recommended and should be carefully abided as the proper temperature is the most important factor in achieving hot malleability. Full information of the forming process should be sought and understood before proceeding.

Nickel 201 can be cold formed by all conventional methods, but because nickel alloys have greater stiffness than stainless steels more power is required to perform the operations.

Nickel 201 is the low carbon version of Nickel 200. It is preferred to Nickel 200 for applications involving exposure to temperatures above 600°F. With low base hardness and lower work-hardening rate, it is particularly suited for cold forming.

High Temperature Mechanical Properties of Annealed Nickel 201
Temp.°FTensile Strength, PSIYield Strength, PSIElongation,%Reduction of Area, %
Room58,50015,0005073
20056,10015,4004574
40054,00014,8004472
60052,50015,3004272
80041,20013,5005880
100033,10012,1006084
120022,20010,2007490
Nominal Mechanical Properties of Nickel 201
FormConditionTensile
Strength
Kpsi
Yield Strength
(0.2% Offset)
Kpsi
Elongation
in 2″ (%)
Hardness
Rod and BarHot Finished,
Hot Finished
and Annealed
50-6010-2560-4075-100 Brinell
Cold Drawn60-10035-9035-10125-200 Brinell
Cold Drawn
and Annealed
50-6010-2560-4075-100 Brinell
Plate
Hot Rolled
50-7012-2560-35
Hot Rolled
and Annealed
50-7012-3560-40
Tube and Pipe*Cold Drawn
Annealed
50-7010-2860-4062 Max
Rockwell B
Stress Relieved60-10530-8535-1570-95
Rockwell B

Specifications

FormStandard
Metal TypeUNS N02201
BarASTM B160 Din 17752 BS 3076
Wire
SheetASTM B162 Din 17750 BS 3072
PlateASTM B162 Din 17750 BS 3072
FittingB366
ForgingASTM B564 Din 17754
Weld Wire 
Weld ElectrodeENi-1
NA 12All forms
Din2.4068
MACHINING DATA
Carbide tools are suggested
For Rates Better Than 50% Of Type 304.
Machining TypeSuggested starting rates are:
Single Point Turning :Roughing – 0.15″ depth, 0.015″/rev feed -175 SFM
Finishing – 0.025″ depth, 0.007″/rev feed – 200 SFM
Drilling :1/4″ Dia hole – 0.004″/rev feed – 60 SFM
1/2″ Dia hole – 0.007″/rev feed – 60 SFM
3/4″ Dia hole – 0.010″/rev feed – 60 SFM
Reaming :Feed – same as drilling – 100 SFM
Side And Slot Milling :Roughing – 0.25″ depth – 0.007″/tooth feed – 125SFM
Finishing – 0.050″ depth – 0.009″/tooth feed – 140SFM
These rates are for carbide tools,
Type C-2 For Roughing, Drilling And Reaming.
Type C-3 For Finishing.
INTERNATIONAL STANDARDS
CountryMaterialPipe/TubeSheet/PlateBar/RodFittingForging
USA ASTMUNS N02201B161B162B160B366B564
Germany DIN2.406817751177501775217754
UK BSNA 12307430723076