2.4068 Forgings: Nickel 201 (UNS N02201) Rings, Flanges, Shafts and Bars
Technical data sheet and forged product range for material 2.4068 (LC-Ni 99). Produced to drawing by Jiangyin Jiangnan Metal Co., Ltd., an open-die forging factory in Jiangyin, Jiangsu, China.
Commercially pure, low-carbon wrought nickel. Specified for caustic and halogen service, and for temperatures above the working limit of Nickel 200.
What is 2.4068?
2.4068 is the EN/DIN material number for LC-Ni 99, a commercially pure wrought nickel containing a minimum of 99.0 % Ni with carbon held to 0.02 % maximum. The same material is designated Nickel 201, Alloy 201, UNS N02201 and BS NA 12. It is the low-carbon version of 2.4066 (Ni 99.2 / Nickel 200).
The low carbon content prevents graphite precipitating at the grain boundaries. 2.4068 therefore remains ductile in continuous service above 315 °C (600 °F), which is the limit for 2.4066, and is normally approved for use up to 677 °C (1250 °F). Base hardness and work-hardening rate are both lower than Nickel 200, so 2.4068 is also used for spinning, cold forming and deep drawing. Corrosion resistance in caustic alkalis is high at all concentrations, including molten sodium hydroxide.
Jiangyin Jiangnan Metal Co., Ltd. forges 2.4068 to customer drawings as seamless rolled rings, flanges, shafts, discs, sleeves, bushings, tube sheets, blocks and bars, supplied in the annealed condition with EN 10204 3.1 or 3.2 inspection documents and ultrasonic testing to EN 10228-3, SEP 1921 or ASTM A388.
Source: Jiangyin Jiangnan Metal Co., Ltd., open-die forging factory, No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu, China. sales@steelforgepieces.com. +86-189-2135-9659. Reviewed 8 August 2026.
Designations, equivalents and standards
2.4068 appears under several names depending on the standard a drawing was written to. All designations in Table 1 describe the same material, low-carbon commercially pure nickel, and are accepted interchangeably on our order confirmations.
| System | Designation | Note |
|---|---|---|
| EN / DIN (Werkstoff-Nr.) | 2.4068 | Also listed as 2.4061 in some mill literature |
| EN / DIN short name | LC-Ni 99 | “LC” = low carbon |
| UNS | N02201 | United States |
| Common trade name | Nickel 201 / Alloy 201 | Special Metals designation |
| British Standard | NA 12 | BS 3072–3076 |
| VdTÜV | Werkstoffblatt 345 | Pressure-vessel approval sheet |
| Nearest higher-carbon grade | 2.4066 / N02200 / Nickel 200 | Ni 99.2, C up to 0.15 % |
Product standards commonly quoted on 2.4068 orders
- ASTM B564 / ASME SB-564: forgings
- ASTM B160 / ASME SB-160: rod and bar
- ASTM B161: pipe and tube
- ASTM B162: plate, sheet and strip
- DIN 17740: chemical composition
- DIN 17750 / 17751 / 17752: semi-finished forms
- ISO 6207 / 6208 / 9723
- VdTÜV WB 345
- EN 10204 3.1 / 3.2: certification
State the ordering standard at enquiry stage. Acceptance limits for chemistry, mechanical properties and NDT differ between ASTM B564 and DIN 17740, and the melting route may need to change accordingly.
Chemical composition of 2.4068
The composition below is the standard limit set for LC-Ni 99 / Nickel 201. Every heat we forge is supplied with a ladle analysis and, on request, a product analysis on the finished forging.
| Limit | Ni | C | Si | Mn | S | Ti | Fe | Cu | Mg |
|---|---|---|---|---|---|---|---|---|---|
| min. % | 99.20 | — | — | — | — | 0.01 | — | — | — |
| max. % | bal. | 0.02 | 0.10 | 0.30 | 0.005 | 0.10 | 0.40 | 0.25 | 0.05 |
Nickel content is quoted as Ni + Co. Exact limits are fixed by the ordering standard; ASTM B564 and DIN 17740 differ slightly on Ni minimum and residual limits.
Carbon limit. Above approximately 315 °C the carbon dissolved in Nickel 200 precipitates as graphite films along the grain boundaries and ductility falls. Holding carbon below 0.02 % suppresses this reaction. Drawings that specify pure nickel for elevated-temperature service should therefore call for 2.4068 rather than 2.4066.
Mechanical properties of 2.4068 forgings
Values below are typical for hot-worked and annealed forged product at room temperature. Guaranteed minima are set by the ordering standard and by section size. They are confirmed on the order acknowledgement.
| Property | Metric | Imperial | Typical minimum |
|---|---|---|---|
| Tensile strength, Rm | 400–500 N/mm² | 58–73 ksi | 345 MPa / 50 ksi |
| Yield strength, Rp0.2 | 80–160 N/mm² | 12–23 ksi | 80 MPa / 12 ksi |
| Elongation, A5 | 40–55 % | 40–55 % | 40 % |
| Reduction of area | 55–75 % | 55–75 % | — |
| Hardness | 75–110 HB | ≈ 45–70 HRB | — |
| Modulus of elasticity | 207 GPa | 30 × 10³ ksi | — |
| Impact, Charpy V (RT) | tough, no transition | — | per order |
2.4068 has no ductile-to-brittle transition and retains toughness at cryogenic temperatures. It is therefore also used in low-temperature service.
Physical properties
| Property | Value | Condition |
|---|---|---|
| Density | 8.89 g/cm³ (0.321 lb/in³) | 20 °C |
| Melting range | 1435–1446 °C (2615–2635 °F) | — |
| Thermal conductivity | ≈ 79 W/m·K | 20 °C, annealed |
| Coefficient of expansion | ≈ 13.3 µm/m·K | 20–100 °C |
| Specific heat | ≈ 456 J/kg·K | 20 °C |
| Electrical resistivity | ≈ 8.5 µΩ·cm | 20 °C |
| Curie temperature | ≈ 350 °C (660 °F) | ferromagnetic below |
High thermal conductivity, low electrical resistivity and ferromagnetism occur together in few materials. 2.4068 is used for solenoid cores, plater bars, anodes and electronic lead components in addition to chemical plant equipment.
Forging practice for 2.4068
Two variables govern the result when forging commercially pure nickel: sulphur in the furnace atmosphere and the temperature of the finishing passes. The route below controls both.
Hot working temperatures
2.4068 is hot worked between 1200 °C and 650 °C. Heavy reduction (upsetting, cogging, punching and the first ring-rolling passes) is carried out between 1200 °C and 1000 °C. Finishing passes are taken between 1000 °C and 650 °C. Work applied at the lower end of the range recrystallises to a finer and more uniform grain, which gives better results on the test bar.
Sulphur control. Nickel and sulphur form a low-melting eutectic that attacks grain boundaries and causes hot-short cracking. Furnaces used for 2.4068 burn low-sulphur fuel and are run slightly oxidising. Oil, grease, marking paint and cutting fluid residues are removed from the stock before charging. Contamination during a single heat can scrap the forging.
Forging reduction and grain flow
Minimum forging ratio is 3:1, and higher ratios are available on request. Grain flow is oriented to follow the principal stress direction of the part: circumferential on rolled rings, axial on shafts. 2.4068 is single phase and cannot be strengthened by heat treatment, so the grain size and grain flow established during forging determine the mechanical properties of the finished part.
Heat treatment of 2.4068 forgings
2.4068 is commercially pure nickel. It is single phase, contains no hardening precipitates and cannot be solution treated and aged. A specification calling for solution treatment and ageing on this grade should be queried before the order is placed. The applicable heat treatments are listed in Table 5.
| Treatment | Typical temperature | Purpose |
|---|---|---|
| Annealing (softening) | 700–870 °C, then air cool or water quench | Restores full ductility and recrystallises the forged structure. Standard delivery condition. |
| Stress relieving | 480–705 °C | Removes residual stress from cold work or machining while retaining most of the strength. |
| Stress equalising | 260–480 °C | Relieves peak stresses in cold-worked parts with minimal loss of hardness. |
Hold time is set by section thickness. The atmosphere must be sulphur-free, and reducing or protective where a bright finish is required. Strength in 2.4068 is raised by cold work only.
Forged forms and size capability
2.4068 is forged to drawing rather than held as stock. The forms listed below are those most often ordered.
- Seamless rolled rings
- Forged rings
- Flanges
- Shafts & spindles
- Discs & disks
- Sleeves & bushings
- Tube sheets
- Hollow forgings
- Blocks & blanks
- Round bars
- Forged pipe
- Valve bodies & stems
- Nozzles
- Gear blanks
| Form | Size range | Single-piece weight |
|---|---|---|
| Seamless rolled rings | OD 200–2500 mm · wall 30–400 mm · height 40–800 mm | 10–5000 kg |
| Forged discs & blanks | Ø 100–1800 mm · thickness 30–600 mm | 10–4000 kg |
| Shafts & round bars | Ø 60–800 mm · length up to 6000 mm | 10–6000 kg |
| Sleeves, bushings, hollows | OD 120–1200 mm · ID from 60 mm | 10–2500 kg |
| Flanges & tube sheets | Ø up to 2000 mm | 10–3000 kg |
| Blocks & rectangles | to drawing | 10–5000 kg |
Minimum order: 1 piece. Delivery condition: as-forged, heat treated, rough machined or finish machined. Typical lead time is 20 to 40 days and depends on raw material availability. Commercially pure nickel is not held in stock by most mills, so melting time should be allowed for large sections. Confirm exact limits with our sales office before designing to them.
Corrosion resistance of 2.4068
2.4068 has a narrow corrosion profile. Table 7 lists the media it suits and the media it does not.
| Environment | Behaviour |
|---|---|
| Sodium hydroxide / caustic alkalis | Resistant at all concentrations and temperatures, including molten caustic. Principal application of the grade. |
| Dry chlorine, dry HCl gas | Resistant up to 550 °C. Moisture must be excluded. |
| Fluorine and fluorides | Resistant. Used for fluorine generation and UF6 handling. |
| Neutral and alkaline salt solutions | Resistant, with high resistance to stress-corrosion cracking. |
| Distilled water, food, pharmaceuticals | Resistant. Does not discolour or contaminate the product. |
| Non-oxidising acids (dilute H2SO4, HCl) | Moderate. Usable when aeration and oxidising contaminants are absent. |
| Nitric acid and oxidising salts | Not suitable. Oxidising conditions attack nickel rapidly. |
| Ammonia with oxygen present | Not suitable. |
| Sulphur-bearing atmospheres above 315 °C | Not suitable. Intergranular sulphur embrittlement. |
Typical applications for 2.4068 forgings
Chemical and process plant
Caustic evaporator bodies and forged nozzles, sodium hydroxide reactor rings and flanges, chlorination plant components, forged tube sheets and shell flanges for shell-and-tube heat exchangers, column and tower flanges, pressure-vessel rings, and forged valve bodies, seat rings, stems and plugs for caustic and halogen service.
Electro-chemical and magnetic components
Plater bars and anode hangers, solenoid cores and armatures where a ferritic stainless would not survive the chemistry, electronic lead and terminal components, combustion boats and laboratory crucible parts.
Food, pharmaceutical and synthetic fibre
Forged fittings and vessel components for caustic-based processing, soap and phenol handling, and viscose and synthetic-fibre plant where product purity rules out iron pick-up.
Aerospace, nuclear and fluorine handling
Forged components for fluorine generation, uranium hexafluoride handling and other halogen duties, plus cryogenic parts that exploit the absence of a ductile-to-brittle transition.
Machining and welding 2.4068
Machining
Annealed 2.4068 is soft and ductile. The usual difficulty is built-up edge and a smeared surface rather than tool breakage. Use sharp positive-rake tooling, a rigid setup, moderate surface speed with a heavy positive feed and flood coolant. Avoid dwelling in the cut, since rubbing work-hardens the surface layer. Where a fine finish and close tolerances are required, take the final cut from stress-relieved material.
Some published data sheets describe 2.4068 as difficult to machine because of rapid work hardening. That description applies to the precipitation-hardened superalloys. 2.4068 has a lower work-hardening rate and a lower base hardness than Nickel 200, which is why it is preferred for spinning, deep drawing and cold forming.
Welding
Weldability is good by GTAW, GMAW and SMAW. Matching consumables are ERNi-1 filler wire and ENi-1 covered electrodes. Preheat is not required. Joint faces and the surrounding 25 mm are degreased and cleaned of sulphur-bearing contaminants such as grease, marking crayon, paint, cutting fluid and temperature-indicating sticks. Heat input is kept moderate and interpass temperature low to limit grain growth in the heat-affected zone.
Testing, inspection and certification
| Check | Standard / method | Scope |
|---|---|---|
| Chemical analysis | Spectrometer, ladle + product analysis | Standard |
| Tensile test | ISO 6892-1 / ASTM E8 | Standard, per heat and heat-treatment lot |
| Hardness | Brinell / Rockwell B | Standard |
| Grain size | ASTM E112 | On request |
| Ultrasonic testing | EN 10228-3, SEP 1921, ASTM A388 / ASTM E2375 | Standard on rings, discs and shafts |
| Dye-penetrant / magnetic particle | EN 10228-2, ASTM E165 | On request (MPI not applicable above Curie point) |
| Dimensional report | To drawing | Standard |
| Inspection document | EN 10204 3.1 (works) or 3.2 (third party: TÜV, BV, SGS, LR) | Standard / on request |
| Marking & traceability | Heat number, grade and order number, stamped or paint-marked | Standard |
Third-party witnessed inspection can be arranged at our works. Where a client's own inspector attends, we issue the inspection and test plan (ITP) for approval before the first heat is released.
About the manufacturer
Jiangyin Jiangnan Metal Co., Ltd. is an open-die forging factory in Zhouzhuang Town, Jiangyin City, Jiangsu Province, approximately 150 km from the Port of Shanghai. Materials forged in house include carbon steel, alloy steel, tool steel, stainless steel and nickel alloys. 2.4068 / Nickel 201 forms part of the nickel alloy programme, together with Monel, Inconel, Incoloy and Hastelloy grades.
| Item | Detail |
|---|---|
| Company | Jiangyin Jiangnan Metal Co., Ltd. |
| Type | Open-die forging factory (manufacturer) |
| Address | No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China |
| Telephone / WhatsApp / WeChat | +86-189-2135-9659 |
| sales@steelforgepieces.com | |
| Website | www.steelforgepieces.com |
| Product range | Forged rings, seamless rolled rings, flanges, shafts, discs, sleeves, bushings, tube sheets, blocks, bars, hollow forgings |
| Materials | Carbon steel, alloy steel, tool steel, stainless steel, nickel and cobalt alloys |
| Certification | EN 10204 3.1 and 3.2 material certificates. Third-party inspection on request |
| Markets served | Worldwide: chemical process, oil and gas, power, marine, mining, pressure vessel |
Cite this page
Jiangyin Jiangnan Metal Co., Ltd. (2026). 2.4068 Forgings: Nickel 201 (UNS N02201) Technical Data Sheet. Jiangyin, Jiangsu, China. Retrieved from https://www.steelforgepieces.com/Nickel-Alloy/2.4068.html
Data on this page is compiled from published material standards (DIN 17740, ASTM B564, ASTM B160, VdTÜV WB 345) and from our own production records for 2.4068. It is given for guidance. Guaranteed values for a specific order are those stated on the order acknowledgement and on the EN 10204 certificate.
Frequently asked questions about 2.4068
What is material 2.4068?
2.4068 is the EN/DIN material number (Werkstoff-Nr.) for LC-Ni 99, a commercially pure wrought nickel with a minimum of 99.0 % Ni and carbon limited to 0.02 % maximum. The same material is designated Nickel 201, Alloy 201, UNS N02201 and BS NA 12. It is the low-carbon version of 2.4066 (Ni 99.2 / Nickel 200).
What is 2.4068 equivalent to?
2.4068 = UNS N02201 = Nickel 201 = Alloy 201 = LC-Ni 99 = BS NA 12. It is covered by VdTÜV Werkstoffblatt 345, and for forgings by ASTM B564 / ASME SB-564. Some mill literature also lists the Werkstoff number 2.4061 for the same material.
What is the difference between 2.4068 and 2.4066?
The difference is carbon content. 2.4066 (Nickel 200) allows up to 0.15 % C. 2.4068 (Nickel 201) limits carbon to 0.02 % maximum. The lower carbon prevents graphite forming on the grain boundaries, so 2.4068 remains ductile in continuous service above 315 °C, where 2.4066 embrittles. 2.4068 is also softer and work hardens more slowly, which suits spinning and cold forming.
What is the chemical composition of 2.4068?
Ni 99.20 % min; C 0.02 % max; Si 0.10 % max; Mn 0.30 % max; S 0.005 % max; Fe 0.40 % max; Cu 0.25 % max; Mg 0.05 % max; Ti 0.01–0.10 %. Exact limits are set by the ordering standard, see Table 2.
What is the maximum service temperature of 2.4068?
Approximately 677 °C (1250 °F). 2.4068 should be specified in place of 2.4066 for continuous service above 315 °C (600 °F), which is the graphitisation limit of the higher-carbon grade.
At what temperature is 2.4068 forged?
Hot working range is about 1200–650 °C. Heavy reduction is taken between 1200 and 1000 °C, and finishing passes between 1000 and 650 °C to recrystallise a fine grain. The furnace atmosphere must be low in sulphur, because nickel and sulphur form a low-melting grain-boundary eutectic that causes hot-short cracking.
How is 2.4068 heat treated after forging?
It is annealed, typically at 700–870 °C followed by air cooling or water quenching, and supplied in that condition. 2.4068 is single-phase pure nickel and cannot be solution treated and aged. A drawing calling for that treatment on this grade should be queried. Stress relieving (480–705 °C) and stress equalising (260–480 °C) are used on cold-worked or heavily machined parts.
Is 2.4068 magnetic?
Yes. It is ferromagnetic at room temperature and has a Curie temperature of approximately 350 °C, above which it loses magnetism. Low coercive force and good permeability make it suitable for solenoid cores and other magnetic components that also require corrosion resistance.
Which corrosive media is 2.4068 used for?
Principally caustic soda at any concentration and temperature, including molten NaOH. Also dry chlorine and dry HCl up to 550 °C, fluorine and fluorides, neutral and alkaline salt solutions, distilled water and food products. It is not suitable for nitric acid or other oxidising acids, for ammonia with oxygen present, or for sulphur-bearing atmospheres above 315 °C.
Can 2.4068 forgings be welded?
Yes. GTAW, GMAW and SMAW are all used, with ERNi-1 filler wire or ENi-1 electrodes, and no preheat is required. Sulphur-bearing residues such as grease, marking crayon, paint and cutting fluid must be removed from the joint and the surrounding area before welding.
Who supplies 2.4068 open-die forgings?
Jiangyin Jiangnan Metal Co., Ltd., an open-die forging factory at No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China, forges 2.4068 / Nickel 201 to customer drawings, including rings, seamless rolled rings, flanges, shafts, discs, sleeves, tube sheets, blocks and bars, with EN 10204 3.1 or 3.2 certification and ultrasonic testing to EN 10228-3, SEP 1921 or ASTM A388. Contact sales@steelforgepieces.com or +86-189-2135-9659.
What do you need from me to quote a 2.4068 forging?
A drawing, or the rough dimensions (OD × ID × height for a ring, or Ø × length for a shaft or bar), together with quantity, ordering standard, delivery condition, required inspection document and any NDT class. Quotations are normally returned within one working day.
Request a price for 2.4068 forgings
Send a drawing or the rough dimensions. The quotation covers the forging, the machining allowance and the certification package. Quotations are normally returned within one working day.
- Drawing, or OD × ID × height (rings) / Ø × length (shafts, bars)
- Quantity and required delivery date
- Ordering standard: ASTM B564, DIN 17740 or your own specification
- Delivery condition: as-forged, heat treated, rough or finish machined
- Inspection document: EN 10204 3.1 or 3.2
- NDT requirement and acceptance class
Jiangyin Jiangnan Metal Co., Ltd. · No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu, China
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