Pure nickel/N4, Pure nickel, Ni201, 99.6%Ni

NICKEL 201
Commercially pure (99.6%) wrought nickel essentially the same as Nickel 200 but with a lower carbon content to prevent embrittlement by intergranular carbon at temperatures over 600°F (315°C). Lower carbon content also reduces hardness, making Nickel 201 particularly suitable for cold-formed items.
STANDARD PRODUCT FORMS
Pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire.
MAJOR SPECIFICATIONS
UNS N02201 BS 3072 – 3074 (NA12) ASTM B 160 – B 163, B 366, B 725, B 730, B 751, B 775, B 829 ASME SB-160 – SB-163, SB-366, SB-725, SB-730, SB-751, SB-775, SB-829 ASME Code Case 2249 SAE AMS 5553 DIN 17740, 17750 – 17754 Werkstoff Nr. 2.4061, 2.4068 VdTÜV 345 ISO 6207, 6208, 9723 – 9725
LIMITING CHEMICAL COMPOSITION, %
Nia..........99.0 min. Cu........0.25 max. Fe.........0.40 max. aPlus Co. Mn........0.35 max. C...........0.02 max. Si..........0.35 max. S...........0.01 max.
PHYSICAL CONSTANTS AND THERMAL PROPERTIES
Density, Ib/in3.........................................................................0.321 g/cm3......................................................................... 8.89 Melting Range, °F....................................................2615 – 2635 °C....................................................1435 – 1446 Specific Heat, Btu/lb•°F.....................................................0.109 J/kg•°C............................................................ 456 Curie Temperature, °F............................................................ 680 °C............................................................ 360 Permeability......................................................... Ferromagnetic Coefficient of Expansion, 70 – 200°F, 10-6 in/in •°F........ 7.3 21 – 93°C, μm/m • °C............. 13.1 Thermal Conductivity, Btu • in/ft2•h•°F............................ 550 W/m • °C.......................................... 79.3 Electrical Resistivity, ohm •circ mil/ft...................................51 μΩ•m...............................................0.085
TYPICAL MECHANICAL PROPERTIES

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