Nickel Alloy 200

 

 

 

Nickel Alloy 200 is a commercially pure wrought nickel (≥99.0% Ni) renowned for its outstanding performance in a wide range of demanding environments. It exhibits excellent corrosion resistance, good mechanical properties, high thermal and electrical conductivity, and magnetostrictive characteristics. As a foundational material for numerous industrial applications, Alloy 200 is the preferred choice for handling corrosive media, high-temperature halogens, and alkaline solutions.

 

Chemical Composition Limits
Weight%	Ni	Cu	Fe	Mn	C	Si	S
Nickel Alloy 200	99.0 min	0.25 max	0.40 max	0.35 max	0.15 max	0.35 max	0.01 max
Nickel Alloy 201	99.0 min	0.25 max	0.40 max	0.35 max	0.02 max	0.35 max	0.01 max

 

Material	Tensile Strength		Yield Strength (0.2% Offset)		Elongation in 2" (%)	Hardness
	ksi	MPa	ksi	MPa		Brinnell (3000kg)	Rockwell B
Nickel 200	55-75	380-520	15-30	105-210	55-40	90-120	45-70
Nickel 201	55-75	380-520	15-30	105-210	55-40	90-120	45-70

 

Exceptional Corrosion Resistance

Offers superior resistance to neutral and alkaline salts, numerous organic acids, and alkaline solutions such as caustic soda.

Maintains stable performance in dry gases like fluorine, chlorine, and hydrogen chloride.

Demonstrates good resistance to non-oxidizing acids like hydrochloric and sulfuric acid at room temperature.

Excellent Mechanical Properties

Combines high strength with high ductility, facilitating easy cold and hot working and forming.

Retains good mechanical properties from cryogenic temperatures to elevated temperatures.

High Thermal & Electrical Conductivity

Its high purity makes it an ideal choice for thermal management and electrical conduction applications, commonly used in the electronic and electrical sectors.

Physical Characteristics

Magnetic Properties: Exhibits magnetostrictive properties and is ferromagnetic below its Curie point (approximately 360°C / 680°F).

Low Gas Content: Very low carbon, sulfur, and oxygen content minimizes the risk of embrittlement in high-temperature service.

Broad Service Temperature Range

Suitable for a wide temperature spectrum, from cryogenic (-196°C / -321°F) to moderately high temperatures (approximately 538°C / 1000°F).

High-temperature properties

The mechanical properties of Nickel 200 at elevated temperatures are shown in Figures 3 and 4. 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. Nickel 200 and 201 are approved for the 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).

Metallography

Nickel 200 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 9.) For this reason, the alloy is not recommended for service in the 600°-1200°F (315°-650°C) range. Nickel 201 is used instead.

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.

Atmosphere

Nickel 200 normally remains bright in indoor atmospheres. Outdoors, the rate of attack is slow because of the formation of a thin protective film, usually a sulfate. This rate increases with increases in the sulfur dioxide content of the atmosphere (such as might occur in industrial areas). Corrosion rates in both marine and rural atmospheres are very low.

 

Chemical Processing Industry: Equipment for producing and handling caustic soda and other alkalis; chemical reactors, evaporators, heat exchangers, piping systems.

Food & Pharmaceutical Industry: Equipment for processing fatty acids, food salts, citric acid, etc., meeting stringent hygiene standards.

Aerospace & Electronics: Spark electrodes, radar modulator tubes, aerospace components, leveraging its electrical conductivity and structural strength.

Synthetic Fibers Manufacturing: Critical equipment components for the production of rayon and other synthetic fibers.

Other Sectors: Marine engineering applications, fuel elements, cathode protection systems for pipelines.

 

Parameter	Details
Common Standards	UNS N02200, ASTM B162, ASTM B160, DIN 2.4060, DIN 2.4066
Primary Composition	Ni ≥ 99.0%, C ≤ 0.15%, Cu ≤ 0.25%, Fe ≤ 0.40%, Mn ≤ 0.35%, Si ≤ 0.35%, S ≤ 0.01%
Density	8.89 g/cm³
Melting Point	1435-1445 °C
Tensile Strength	≥ 380 MPa (Annealed Condition)
Yield Strength (0.2% Offset)	≥ 103 MPa (Annealed Condition)
Elongation	≥ 40% (Annealed Condition)
Modulus of Elasticity	204 GPa
Thermal Conductivity	70 W/m·K (at 21°C)
Magnetic Properties	Ferromagnetic below Curie point (~360°C)

Rod	ASTM B 160, ASME SB 160, DIN 17752, ISO 9723
Bar	ASTM B 160, ASME SB 160, DIN 17752, ISO 9723
Pipe	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 B 751, ASTM B775, ASME SB 775, ASTM B 829, ASME SB 829 DIN 17751, ISO 6207
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 B 751, ASTM B775, ASME SB 775, ASTM B 829, ASME SB 829 DIN 17751, ISO 6207
Plate	ASTM B 162, ASME SB 162, DIN 17750, ISO 6208
Sheet	ASTM B 162, ASME SB 162, DIN 17750, ISO 6208
Strip	ASTM B 162, ASME SB 162, DIN 17750, ISO 6208
Fittings	ASTM B 366, ASME SB 366
Forgings	ASTM B 546, ASME SB 564, ISO 9725, DIN 17754
Wire	DIN 17753, ISO 9724
Other/Similar Specs	UNS N02200, UNS N02201, BS HR 10, BS 3072, BS 3073, BS 3074, BS 3075, BS 3076, NA11, Werkstoff Nr. 2.4060, 2.4066, VNI200

 

Quality Assurance: All materials conform to or exceed international standards such as ASTM and ASME, supported by full Material Test Certificates.

Extensive Inventory: Comprehensive stock of various forms and sizes for prompt delivery, reducing your lead times.

Technical Support: Our experienced engineering team provides expert advice on material selection, fabrication, and application.

Customization Services: Value-added services including cutting and shaping according to your drawings or requirements.

 

 

Hot Tags: nickel alloy 200, China nickel alloy 200 manufacturers, suppliers, factory