Nickel 201 | UNS N02201 | 2.4068 | Commercially Pure Nickel (Low Carbon)

Shaanxi Shangyou Stainless Steel Co., Ltd. supplies Nickel 201, identified as UNS N02201 and Werkstoff 2.4068 (also 2.4061), in plate, sheet, strip, round bar, rod, seamless and welded tubing, pipe, wire, and forging forms. Our Nickel 201 products can be supplied according to ASTM B162 / ASME SB-162 for plate, sheet and strip; and ASTM B160 / ASME SB-160 for bar and wire.

Nickel 201 is a commercially pure wrought nickel (typically 99.6% Ni) that is essentially the same as Nickel 200, but with a lower carbon content (0.02% max). This reduced carbon content prevents embrittlement by intergranular carbon precipitation at temperatures above 315°C (600°F), making Nickel 201 the preferred choice for elevated-temperature service. The lower carbon content also reduces hardness, making the alloy particularly suitable for spinning and cold forming. The alloy offers good resistance to various reducing chemicals and caustic alkalies, high electrical and thermal conductivity, good ductility, a low work-hardening rate, and excellent weldability.

Actual properties depend on product form, dimensions, and the specified standard.

Annealed

Nickel 201 is normally supplied in the annealed condition. The standard annealing treatment is performed at approximately 760 – 1,050°C (1,400 – 1,922°F) followed by rapid cooling. This treatment provides optimal corrosion resistance and ductility for forming and fabrication. The alloy is not age-hardenable and is strengthened only through cold working.

Cold Working / Spring Temper

Nickel 201 is not age-hardenable – strength increases only through cold working. Annealed material typically exhibits tensile strength of 380 – 500 MPa (55 – 73 ksi), while spring temper can achieve 700 – 900 MPa (102 – 131 ksi). The alloy's low work-hardening rate makes it particularly suitable for cold forming by all conventional methods.

Nickel 201 provides the same excellent corrosion resistance as Nickel 200 in most environments, with the added advantage of elevated-temperature stability.

Key Corrosion Characteristics:

• Excellent resistance to caustic alkalis, including sodium hydroxide up to and including the molten state
• Good resistance to various reducing chemicals and neutral/alkaline salt solutions
• Resistant to all dry gases at room temperature; in dry chlorine and hydrogen chloride may be used up to 550°C
• High electrical and thermal conductivity
• Good magnetostrictive properties
• Good ductility and low work-hardening rate
• Good weldability and solderability
• Virtually immune to intergranular attack above 315°C

Selection Considerations:

• Tensile strength and elongation drop significantly at temperatures above 315°C (600°F)
• Limited resistance to oxidizing environments such as nitric acid and other oxidizing acids
• Not suitable for strongly oxidizing salt solutions – severe attack will occur
• For applications requiring higher mechanical strength than pure nickel can provide, consider nickel alloys such as Alloy 400 or K-500
• Final selection must consider the specific medium, concentration, temperature, and oxidizing or reducing conditions

• Chemical Processing: Caustic soda manufacturing equipment (particularly at temperatures above 300°C), vessels and piping for sodium hydroxide, reactors, tanks for chemical handling
• Electronics: Battery connections and terminals, lead-in wires for heating elements, electronic components, electrical connectors
• Food Processing: Food handling equipment, synthetic fiber processing, soap manufacture
• Aerospace: Aircraft components, rocket motor cases, missile components
• Chemical Production: Vinyl chloride monomer production, chlorination of hydrocarbons, phenol storage systems, hydrochloric acid and viscose rayon production

Available quality-control services include:

• Heat-number traceability
• Chemical composition verification
• Tensile, yield and elongation testing
• Hardness inspection
• Dimensional and surface inspection
• Positive Material Identification (PMI)
• Ultrasonic testing
• Dye penetrant inspection
• Heat-treatment records
• EN 10204 3.1 material certificate

For an accurate quotation, please provide:

Alloy Grade · Standard · Product Form · Dimensions · Quantity · Heat Treatment · Inspection Requirement · Application · Working Temperature · Destination Port

For corrosive environments, also provide:

Chemical Medium · Concentration · Temperature · Oxidizing or Reducing Conditions

• Request Nickel 201 Quote
• Upload Drawing or MTO
• Check Available Stock
• Ask for Alloy Selection Support

Nickel 201 (UNS N02201) is a low-carbon commercially pure nickel (99.0% min) that offers the corrosion resistance of Nickel 200 with improved performance at temperatures above 315°C (600°F).

The UNS designation is N02201; the European Werkstoff numbers are 2.4068 and 2.4061.

ASTM B162 / ASME SB-162 applies to plate, sheet and strip; ASTM B160 / ASME SB-160 applies to bar, rod and wire.

ASTM B161 / ASME SB-161 applies to seamless pipe and tube.

Nickel 201 has lower carbon content (0.02% max vs 0.15% max), which prevents embrittlement by intergranular carbon at temperatures above 315°C. Nickel 201 is preferred for elevated-temperature applications.

Nickel 201 is suitable for service at temperatures above 315°C where Nickel 200 would be at risk of embrittlement. It is used in sodium hydroxide evaporators up to 450°C and vessels up to 600°C.

It offers excellent resistance to caustic alkalis (including molten caustic), reducing chemicals, neutral and alkaline salt solutions, and dry chlorine at elevated temperatures. It also provides high resistance in food processing and synthetic fiber production.

Nickel 201 is not suitable for strongly oxidizing acids such as nitric acid or oxidizing salt solutions, which cause severe attack.

Yes. Nickel 201 offers very good weldability and can be welded by TIG, MIG, and resistance welding methods. Recommended filler materials include NICKEL 61 and welding electrodes NICKEL 141.

Please provide the standard, product form, dimensions, quantity, heat-treatment condition, inspection requirements, application, working temperature and destination port. For corrosive environments, also specify the chemical medium and concentration.