UNS N02201, W.Nr. 2.4061 and 2.4068
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 315°C. Lower carbon content also reduces hardness, making NICKEL 201 particularly suitable for cold-formed items.
Recommended filler metal is NICKEL 61 and welding electrodes in NICKEL 141.