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Nickel 201 Round Bar

Nickel 201 Round Bar (UNS N02201 / 2.4068) is low-carbon commercially pure nickel to ASTM B160. With 0.02% maximum carbon it resists graphite embrittlement above about 315°C while keeping excellent caustic corrosion resistance. It is used for caustic evaporators, chemical equipment, electronic parts and cold-formed components. It is also stocked for hot caustic service.

➡️ Alloy 201 | UNS N02201 | EN 2.4068 | ASTM B160

➡️ ASTM, EN, JIS & International Standards

➡️ Supply Conditions

➡️ Multiple Diameters & Supply Lengths

➡️ Global Export & International Delivery

Nickel 201 Round Bar - Euro Steel Bars

Country of Origin:

Europe, Japan, USA

Material Type:

Nickel Alloy

UNS Number:

N02201

Wr. No.:

2.4068

MTC Available:

EN 10204 3.1

Product Description for Nickel 201 Round Bar

Nickel 201 Round Bar is made from low-carbon commercially pure nickel with at least 99.0% nickel and not more than 0.02% carbon. It is designated UNS N02201 and is known in Germany as 2.4068 (LC-Ni 99). Rod and bar are supplied to ASTM B160 and ASME SB160.

Nickel 201 has the same excellent corrosion resistance as Nickel 200, especially in caustic alkalis, many neutral salts, waters and organic compounds. The difference is the very low carbon content. This prevents graphite from forming at grain boundaries when the metal is held at high temperature, so Nickel 201 can be used above about 315°C where Nickel 200 would become brittle.

The low carbon content also gives a lower annealed hardness and a lower work-hardening rate. This makes the alloy well suited to spinning, cold forming and coining.

The alloy is ferromagnetic at room temperature, with a Curie point of about 360°C, and it has high thermal and electrical conductivity. It can be welded, brazed and machined with suitable tooling.

Common applications include caustic evaporators, high-temperature caustic handling, chemical process equipment, electronic parts, laboratory crucibles, spun and cold-formed parts, and parts that are welded and then exposed to heat. Bars are supplied hot finished or cold drawn and annealed. Many users choose 201 when welding or high-temperature service could cause problems with Nickel 200. Because it keeps its ductility at high temperature, Nickel 201 is also used for caustic evaporator tubes, heater parts and electronic leads that are heated during manufacture. It is softer than Nickel 200, which helps in cold forming and spinning.

Common Applications of Nickel 201 Round Bar

➡️ Machined shafts, spindles, valve stems, pump sleeves and pins for food, beverage, dairy and pharmaceutical equipment, where the passive chromium oxide film resists both product acids and caustic clean-in-place chemicals.

➡️ Fasteners, studs, bolts, threaded rod and anchor components produced from bar stock, chosen for corrosion resistance combined with the ductility needed for cold heading and thread rolling.

➡️ Chemical, water treatment and general process plant parts such as agitator shafts, flange blanks, nozzles and support components handling water, steam and mildly corrosive media free of significant chlorides.

➡️ Architectural and structural hardware including handrail stanchions, balustrade fittings, tension rods and bollards, where a bright ground or polished bar finish provides both appearance and low maintenance.

International Equivalent Grade for Nickel Alloy 201 Round Bar

Standard

Country / Region

Grade

UNS

USA

UNS N02201

ASTM / ASME / SAE

USA

ASTM B160 / ASME SB160 / SAE AMS 5553

DIN 17740 / DIN 17752

Europe

2.4068 (LC-Ni 99 / NLC-Ni 99)

BS 3076

United Kingdom

NA 12

GB / T

China

N02201 / N4

JIS H4553

Japan

NW 2201

KS

South Korea

NW 2201

ISO 9723

International

NW2201

Table of Contents

Technical Specification for Nickel 201 Round Bar

Specification

Value

Unit

Material

Nickel alloy

-

Grade

Nickel 201 / UNS N02201 / 2.4068

-

Standard

ASTM B160 / ASME SB160

-

Product Form

Round bar / rod

-

Diameter (supply range)

6–250

mm

Length (random)

1–6

m

Manufacturing Process

Hot rolled, forged, extruded or cold drawn

-

Surface Finish

Descaled, pickled, peeled, turned, ground or bright

-

Heat Treatment / Delivery Condition

Hot finished, annealed or cold drawn and annealed

-

Tolerance Standard

ASTM B160 tolerance tables

-

Density

8.89

g/cm³

Melting Range

1435–1446

°C

Thermal Conductivity at 20°C

79

W/m·K

Coefficient of Thermal Expansion 20–100°C

13.1

µm/m·K

Specific Heat at 20°C

456

J/kg·K

Electrical Resistivity at 20°C

0.085

µΩ·m

Modulus of Elasticity at 20°C

207

GPa

Magnetic Properties

Ferromagnetic (Curie point about 360°C)

-

Testing / Inspection

Chemical analysis, tensile, hardness, dimensional, UT and PMI on request

-

Certification

EN 10204 3.1 mill test certificate (3.2 on request)

-

Technical Specifications​ Icon

Technical Specifications

Get the key technical specifications for Nickel 201 Round Bar

Nickel 201 Round Bar is supplied to ASTM B160 in the hot-worked or annealed condition, with ASME SB160 used for pressure equipment. The European material 2.4068 is covered by DIN 17740 for chemistry and DIN 17752 for bars.

Bars are hot rolled or forged and annealed, or cold drawn and annealed for a bright surface and closer tolerances. Tolerances for diameter, out-of-round, length and straightness follow ASTM B160.

Physical data for Nickel 201 are reference figures, close to those of Nickel 200. The alloy has high conductivity and is ferromagnetic at room temperature.

Because carbon is limited to 0.02%, the alloy can be used for long periods above about 315°C without graphite embrittlement. Every Nickel 201 heat is analysed for carbon, which is the key acceptance check for this grade. For evaporator and heater parts, Nickel 201 bar can be ultrasonically tested and PMI checked on request.

Dual certification is common. Many mills produce nickel that meets both Nickel 200 and Nickel 201 limits, because carbon is often low enough for both. If you need Nickel 201 for hot service, check that the certificate states UNS N02201 and shows carbon at or below 0.02%. Do not accept a Nickel 200 certificate for parts that will run above about 315°C.

Chemical Composition for Nickel 201 Round Bar

Element

Symbol

Min

Max

Unit

Nickel (incl. Cobalt)

Ni

99.0

-

%

Copper

Cu

-

0.25

%

Iron

Fe

-

0.40

%

Manganese

Mn

-

0.35

%

Carbon

C

-

0.02

%

Silicon

Si

-

0.35

%

Sulfur

S

-

0.010

%

Chemical Composition

View the chemical composition and applicable material limits for Nickel Alloy 201 Round Bar

The table shows the ASTM B160 limits for UNS N02201. The composition is the same as Nickel 200 except for the carbon limit, which is cut from 0.15% to 0.02%.

Nickel at 99.0% minimum provides the excellent resistance to caustic alkalis and many other media. It also gives the alloy its magnetic behaviour and high conductivity.

The low carbon limit is the defining feature. With so little carbon, graphite cannot precipitate at grain boundaries during long exposure above about 315°C. This keeps the metal ductile in high-temperature caustic service and in welded parts. The low carbon also lowers annealed hardness and work-hardening rate, which helps cold forming.

Iron, copper, manganese and silicon in Nickel 201 are residuals kept low to protect conductivity. Sulfur is kept very low because it can cause hot cracking and embrittlement in nickel. Carbon at 0.02% maximum is the only chemical difference from Nickel 200. At this level, very little carbon is left free to form graphite during long heating, so the metal stays ductile above 315°C. Nickel plus cobalt must be at least 99.0%, and copper, iron, manganese and silicon are kept low to protect conductivity and corrosion resistance.

Sulfur is limited to 0.010% because even small amounts of sulfur can make nickel crack during hot working and welding.

Mechanical Properties for Nickel 201 Round Bar

Mechanical Property

Value

Unit

Tensile Strength (ASTM B160, annealed)

≥ 345

MPa

Yield Strength 0.2% (ASTM B160, annealed)

≥ 70

MPa

Elongation in 50 mm or 4D (ASTM B160, annealed)

≥ 40

%

Hardness (annealed)

75–100

HB

Mechanical Properties​ Icon

Mechanical Properties

Check the key mechanical properties and performance requirements of Nickel Alloy 201 Round Bar

The tensile, yield and elongation values are ASTM B160 minimum requirements for annealed Nickel 201 rod and bar. Hardness is a reference value for guidance. Hot-worked material has its own requirements in the standard.

Nickel 201 is slightly softer and weaker than Nickel 200 because of its lower carbon content. It has very high ductility and a low work-hardening rate, so it is ideal for spinning, deep drawing, coining and other cold forming.

The alloy keeps good toughness at low temperature. At high temperature it does not suffer graphite embrittlement, which is why it is chosen for service above about 315°C. Use minimum values from the ordered condition for design and confirm actual results on the mill certificate. The lower carbon gives Nickel 201 slightly lower strength and hardness than Nickel 200, so its ASTM B160 minimum yield strength is lower. This softness is an advantage in spinning, deep drawing and cold heading. For high-temperature service, design stresses should come from ASME code tables or producer creep data, not from room-temperature tensile results. Parts that are cold formed may need a stress-relief or full anneal before use at high temperature.

Dimension / Sizes for Nickel 201 Round Bar

Dimension / Size

Value

Unit

Available Diameter Range (supply capability)

6–250

mm

Standard Length (random)

1–6

m

Custom / Cut-to-Length

Available on request

-

Diameter Tolerance

Per ASTM B160 tolerance tables (hot-finished or cold-drawn)

-

Length Tolerance

Per ordered standard or as agreed (commonly +50 / -0 mm for cut lengths)

-

Straightness Tolerance

Per ASTM B160 or as agreed

-

End Condition

Saw cut square, chamfered or as ordered

-

Surface Finish

Hot finished, descaled, pickled, peeled, turned, centreless ground or cold drawn bright

-

Dimensions & Sizes

Explore available diameters, lengths, and dimensional requirements for Nickel Alloy 201 Round Bar

Pricing for Nickel 201 Round Bar

Round Bar Prices are generally quoted per kilograms or meters tonnes and can fluctuate with the global raw material and market prices. The final price will depend on a variety of factors, including the grade size, diameter, length, surface finish, the quantity and whether the bars are cut to length or in standard lengths.

For smaller quantities,  we can also quote per metre or per piece basis once the required dimensions have been confirmed. Container-loads or orders that are larger in size are typically priced per tonne, based upon the specifications required and the supply conditions.

Please provide your desired dimensions, grades, length number, and end for a current quote including the lead time applicable and details for certification.

Pricing

Get current Nickel 201 Round Bar pricing based on size, quantity, grade, finish, and delivery requirements.

Why Choose Us

Euro Steel Bars is an international distributor, stockist and exporter of stainless round steel bars that cover carbon, stainless alloy, special grades. We stock a variety of sizes and grades. We guarantee every order with mill test certificates as well as full quality-assurance documentation. Our name speaks to our roots: European-sourced materials that is backed by the certificates and rigor that buyers from Asia as well as the Gulf and Africa are looking for.

Each bar we deliver is accompanied by EN 10204 3.1 mill test certificates as well as complete documentation of quality, so what you receive corresponds to what’s written in the documents. We carry a selection of sizes and grades ready for transport, and cut length upon the request of customers, which results in quicker lead times, whether you’re ordering just a one-off spec or a complete project tonnage.

We operate an actual wholesale business that is that is supported with an internationally-operated supply chain therefore we are able to serve fabricators sourcing one grade the same way in the same way as an EPC contractor who is placing a large order. Our clients include manufacturers, fabricators EPC construction companies, engineers oil and gas projects as well as construction companies. we design our inventory as well as documentation to show what buyers need to bring projects forward.

Our customers trust us across Qatar, Oman, Bahrain, Kuwait, Jordan, Malaysia, Singapore, Thailand, Taiwan, Turkey, Italy and South Africa. If you’re looking to source an Gulf energy project, or a construction project within Southeast Asia, you get the same quality of certified material, the exact documentation, and the exact delivery procedure.

Frequently Asked Questions

Everything you should be aware of regarding Nickel 201 Round Bar from the grade and standards internationally, to the available sizes and finishes, requirements for manufacturing and application. This section will help buyers examine specifications and options for supply prior to making an inquiry or requesting a quote.
Choose Nickel 201 when the part will operate above about 315°C, for example in caustic evaporators or hot alkali plants. Its carbon limit of 0.02% prevents graphite forming at grain boundaries. For room-temperature service, Nickel 200 offers the same corrosion resistance with slightly higher strength. Nickel 201 is also a little softer, which helps in spinning, cold heading and deep drawing.
Yes. Because the only chemical difference is the carbon limit, a heat with carbon at or below 0.02% can meet both UNS N02200 and N02201. Many mills sell dual-certified bar. This is useful for stockists and buyers who handle both grades. Make sure the certificate lists both UNS numbers and meets the higher strength minimums of Nickel 200 if both are claimed.
Nickel 201 can be used for long periods above about 315°C, the limit for Nickel 200, because its low carbon prevents graphite forming at grain boundaries. It is used in caustic evaporators and heating equipment up to about 600°C and higher in some dry environments. At high temperature it is attacked by sulfur-containing gases, so check the gas composition before use.
Yes. Nickel 201 has high electrical and thermal conductivity for a nickel alloy and a stable magnetic response, and its low carbon keeps it ductile after the heating steps used in electronics manufacturing. It is used for leads, battery connectors, lamp parts and resistance-welded components. For these uses, order annealed bar and state any limits on surface finish or cleanliness.
Weld Nickel 201 by TIG or MIG with ERNi-1 filler and thorough cleaning, because sulfur, lead and phosphorus contamination cause cracking. Use low heat input and stringer beads. Machining needs sharp, positive-rake tools and heavy feeds to avoid work hardening. It is softer than Nickel 200 and can only be strengthened by cold work.
Nickel 201 has low strength, so it is not suitable for highly loaded structural parts. It is attacked by nitric acid and other oxidising acids, by aerated ammonia solutions and by sulfur-containing atmospheres at high temperature. For oxidising media, a chromium-bearing nickel alloy such as Alloy 600 or 625 is usually needed.

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