RAYCHIN LIMITED

Nickel 200 Bolts – Design & Configurations

Critical Applications of Nickel 200 Bolts

International Standards & Global Designations – Nickel 200 Bolts

RAYCHIN LIMITED manufactures nickel 200 bolts from vacuum arc melted (VAR) material conforming to the most widely used national and international specifications. All material is traceable to the mill.

Chemical Composition (Weight %) – Nickel 200 (UNS N02200)

Our nickel 200 bolts are produced from vacuum arc melted (VAR) material conforming to the following limits per ASTM B160 and industry standards.

Nickel 200 (UNS N02200) – Minimum 99.0% Nickel

Metallurgical note: Nickel 200 is a commercially pure, solid-solution wrought nickel alloy. It has a face-centered cubic (FCC) crystal structure that remains stable from cryogenic temperatures up to its melting point, providing excellent ductility and fabricability. The alloy exhibits ferromagnetic properties with a Curie temperature of approximately 360°C (680°F). Nickel 200 is suitable for continuous service up to 315°C (600°F); for applications above this temperature, Nickel 201 (low carbon version) should be used in place of alloy 200 to avoid graphitization and embrittlement.

Complete Mechanical & Physical Properties – Nickel 200 (MPa / ksi)

Nickel 200 bolts are supplied in various conditions (annealed, cold worked) per ASTM B160. Data represent typical values based on industry standards.

Mechanical Properties – Nickel 200 (Hot Finished / Cold Drawn)

Mechanical Properties – Nickel 200 (Typical Values)

Physical Properties – Nickel 200

High‑Temperature Performance of Nickel 200 Bolts

Nickel 200 retains useful mechanical properties at elevated temperatures up to 315°C (600°F) and is suitable for continuous service in this range. The alloy maintains excellent ductility from cryogenic temperatures (-269°C) up to its maximum service temperature, with no ductile-to-brittle transition. At elevated temperatures, Nickel 200 exhibits good oxidation resistance and retains approximately 50% of its room temperature strength at 315°C. For applications above 315°C, Nickel 201 (low carbon version) is recommended to prevent graphitization and embrittlement. The alloy can also be used with dry chlorine and hydrogen chloride at temperatures up to 550°C.

Elevated Temperature Capabilities

Exceptional Corrosion Resistance of Nickel 200 Bolts

Nickel 200 offers outstanding corrosion resistance across a wide range of aggressive environments, making it suitable for the most demanding applications in chemical processing, marine, and power generation industries.

• Caustic Alkalis: Outstanding resistance to sodium hydroxide (caustic soda) and potassium hydroxide in all concentrations up to and including molten state. Nickel 200 is the preferred material for caustic evaporators and handling equipment.
• Seawater Corrosion: Excellent resistance to ordinary seawater corrosion, making it ideal for onshore and offshore marine applications, including desalination systems and marine fittings.
• Neutral and Alkaline Salts: Highly resistant to most neutral and alkaline salt solutions, including chlorides, sulfates, and nitrates.
• Acid Resistance: Good resistance to de-aerated mineral acids. Most useful under reducing conditions. Corrosion resistance is better in de-aerated acid. Resists hydrofluoric acid and organic acids in the absence of oxidizing agents.
• Dry Gases: Resistant to all dry gases at room temperature. In dry chlorine and hydrogen chloride may be used at temperatures up to 550°C. Resistant to dry fluorine.
• Food and Organic Materials: Non-reactive with organic compounds, making it ideal for food processing and pharmaceutical equipment where product purity must be maintained.
• High Temperature Water: Excellent corrosion resistance in high-temperature water and steam environments up to 315°C.
• Limitations: Not suitable for oxidizing salt solutions, nitric acid, or oxidizing acid environments where rapid attack may occur. In oxidizing salt solutions severe attack will occur.
• Bimetallic Corrosion: Can be safely connected to stainless steels, titanium alloys, and copper alloys with appropriate precautions. Avoid direct contact with aluminum, zinc, and carbon steel without proper insulation.

Manufacturing Standards – Nickel 200 Bolts

All nickel 200 bolts are manufactured and tested to meet the following standards:

We offer surface finishes: plain (as-machined), chemical cleaned, ground, polished, and passivated. Silver plating per AMS 2410 available for anti‑seize. Cleanroom wash and cleanroom packaging available for pharmaceutical, food processing, and semiconductor applications – batch cleanroom packing provided for orders containing multiple items of the same size. Full traceability and destructive/non‑destructive testing available (UT, PMI, MPI). ISO 9001, AS9100D, ISO 13485 certified. ISO 14001 and PED certified company. We are a TrustSEAL Verified manufacturer and exporter.