Nickel 201 / UNS N02201 Special Alloys For Electronic High Thermal Conductivity

Nickel 201, UNS N02201, W.Nr. 2.4061 (LC-Ni99.6), 2.4068(LC-Ni99.2) semi-product for electronic parts

1 PRODUCT

Nickel 201, UNS N02201, W.Nr. 2.4061 (LC-Ni99.6), 2.4068(LC-Ni99.2) semi-product for electronic parts.

Standard product forms include pipe, tube, sheet, strip, plate, round bar, flat bar, forging, forging stock, hexagon, shapes and wire.

2 EQUIVALENT DESIGNATION

UNS N02201, W.Nr. 2.4061 (LC-Ni99.6), W.Nr. 2.4068(LC-Ni99.2)

3 APPLICATION

Typical applications are

◘ Food manufacturing such as handling of cooling brine, fatty acids and fruit juices due to the material’s resistance against acids, alkalis and neutral salt solutions and against organic acids

◘ Tanks in which fluorine is produced and where it reacts with hydrocarbon (CFC) due to the material’s resistance against fluorine

◘ Storage and transport of phenol

◘ Production and treatment of caustic soda

◘ Production of synthetic fibers and soaps

◘ Production of hydrogen chloride and chlorination of hydrocarbons such as benzene, methane and ethane

◘ Production of vinyl chloride monomer due to the material’s resistance against dry chlorine gas and hydrogen

chloride in increased temperatures

◘ Electrical and electronic components

◘ Electrode contacts and current conductors in batteries

◘ Current conductors in alkali fuels

4 OVERVIEW

Nickel

Commercially pure or low-alloy nickel has characteristics that are useful in several fields, notably chemical processing and electronics. Nickel is highly resistant to various reducing chemicals and is unexcelled in resistance to caustic alkalies. Compared with nickel alloys, commercially pure nickel has high electrical and thermal conductivity. It also has a high Curie temperature and good magnetostrictive properties. Annealed nickel has a low hardness and good ductility and malleability. Those attributes, combined with good weldability, make the metal highly fabricable. Nickel has a relatively low work-hardening rate, but it can be cold worked to moderately high strength levels while maintaining ductility.

Nickel 201

Nickel 201 is commercially pure (99.6%) wrought nickel. It has good mechanical properties and excellent resistance to many corrosive environments. Other useful features of the alloy are its magnetic and magnetostrictive properties, high thermal and electrical conductivities, low gas content and low vapor pressure.

Nickel 201 is characterized by:

◘ Excellent resistance in alkaline media,

◘ High ductility in a wide temperature range,

◘ Ferromagnetism,

◘ High electrical and thermal conductivity

5 CHEMICAL COMPOSITION (wt%):

6 METALLOGRAPHY

Nickel 201 is a solid-solution alloy with a face-centered cubic structure. The microstructure typically exhibits a minor amount of nonmetallic inclusions, principally oxides, which are unchanged by annealing.

Prolonged exposure in the temperature range of 800 - 1200°F (425°-650°C) will precipitate graphite. (See Figure 1.) For this reason, the alloy is not recommended for service in the 600°-1200°F (315°-650°C) range. Nickel 201 is used instead.

Figure 1 Solubility of carbon in nickel. Data for the solid portion of the curve were obtained by heating DH 499 (99.9%) nickel in wet hydrogen for 2 hr at 1832°F (1000°C) and then in a mixture of 75% hydrogen, 25% methane for 1 hr at experimental temperature. The triangle and circle symbols represent tests on commercial melts; samples were annealed at 2400°F (1315°C) before testing.

7 PHYSICAL PROPERTIES

Density: 8.9 g/cm³ (0.321 lb/in³)

Melting range: 1435-1446°C (2615-2635°F)

Specific heat: 456 J/kg•°C (0.109 Btu/lb•°F)

Curie temperature: 360°C (680°F)

8 MECHANICAL PROPERTIES

Nominal mechanical properties as per DIN 17750 (Plate, sheet and strip)

Nominal mechanical properties as per ASTM B160 (Rod and bar)

High temperature properties

The mechanical properties of Nickel 200 at elevated temperatures are shown in Figures 2 and 3. However, Nickel 200 is normally limited to service at temperatures below 600°F (315°C). At higher temperatures Nickel 200 products can suffer from graphitization which can result in severely compromised properties. For service above 600°F (315°C), Nickel 201 is preferred.

Figure 2 High-temperature tensile properties of annealed Nickel 200.

Figure 3 Typical creep strength of annealed Nickel 200

9 CORROSION RESISTANCE

Nickel 200 is highly resistant to many corrosive media. Although most useful in reducing environments, it can be used also under oxidizing conditions that cause the development of a passive oxide film. The outstanding resistance of Nickel 200 to caustics is based on this type of protection.

In all environments, when temperatures above 600°F (315°C) are involved, the preferred material is Nickel 201.

10 WORKING INSTRUCTION

Heating and Pickling

Prefer to that of Nickel 200.

Hot forming

Prefer to that of Nickel 200.

Cold forming

Prefer to that of Nickel 200.

Machining

Prefer to that of Nickel 200.

Joining

Prefer to that of Nickel 200.

11 STANDARD SPECIFICATION

Nickel 200 and 201 are approved for construction of pressure vessels and components under ASME Boiler and Pressure Vessel Code Section VIII, Division 1. Nickel 200 is approved for service up to 600°F (315°C) while Nickel 201 is approved for service up to 1250°F (677°C).

Rod and bar

ASTM B 160 / ASME SB 160

ASTM B 564 / ASME SB 564

DIN 17752

ISO 9723

VdTÜV 345

Wire

DIN 17753

ISO 9724

Pipe and Tube

ASTM B 161 / ASME SB161

ASTM B 163 / ASME SB 163

ASTM B 725/ ASME SB 725

ASTM B 730 / ASME SB 730

ASTM B 751 / ASME SB 751

ASTM B775 / ASME SB 775

ASTM B 829 / ASME SB 829

DIN 17751

ISO 6207

Plate, Sheet & Strip

ASTM B 162 / ASME SB 162

ASTM B 730 Strip

ASME SA 578

DIN 17750

ISO 6208 Strip

VdTÜV 345

EN 10029

SAE AMS 5553

SAE AMS 5555 Strip

Fitting

ASTM B 366 / ASME SB 366

Forging

ASTM B 564 / ASME SB 564

ISO 9725

DIN 17754

Chemical Composition

DIN 17740

12 COMPETITIVE ADVANTAGE:

(1) More than 50 years experience of research and develop in high temperature alloy, corrosion resistance alloy, precision alloy, refractory alloy, rare metal and precious metal material and products.
(2) 6 state key laboratories and calibration center.
(3) Patented technologies.

(4) Ultra-purity smelting process: VIM + IG-ESR + VAR

(5) Excellent high performance.

13 BUSINESS TERM

With background of more than 50 years of material R&D experience, CMMC is a high-tech enterprise specialized in production of high temperature alloys, corrosion resistant alloys, precision alloys, wear resistant alloys, refractory alloys and other special alloys.

With main smelting equipments by CONSARC, including vacuum induction melting furnace (VIM 3 metric tons x 1 set), inert gas protective electric slag remelting furnace (IG-ESR 5 metric tons x 1 set, 10 metric tons x 2 sets), vacuum arc remelting furnace (VAR 10 metric tons x 1 set), CMMC has an annual production capacity of 3000 metric tons.

Established in 2016, CMMC stll having an investing plan of more than 30 million U.S.Dollars in the coming 5 years. CMMC aspires to become an internationally renowned supplier and leading brand of key materials for core components of high-end equipments in the application fields of aerospace, clean energy, petroleum, chemical engineering, medical, marine engineering, food and automobile, etc.

Our main products include forgings, bars, rods, tubulars, plates, sheets, strips, wire rods, precision wires, etc.

From ultra-pure smelting, hot and cold forming, heat treatment, mechanical processing to finish machining, CMMC provides the whole process of one-stop professional services.

From demand idea to research and development, from technology innovation to promoting of products upgrading, from customer's puzzles and difficulties to final solution, from smelting to market, no matter wherever, whenever, whatever and however, CMMC always try to provide satisfactory one-stop service.

By providing better materials to make a better world, CMMC never give up the dream.