Nickel-based alloys are an important class of high-temperature materials widely utilized in aerospace, energy, and chemical industries due to their excellent properties such as high temperature resistance, corrosion resistance, and wear resistance. In the production and application of nickel-based alloys, it is essential to adhere to a series of standards and specifications to ensure product quality and safety. Here are some key standards and specifications related to nickel-based alloys:

1. ASTM Standards: The American Society for Testing and Materials (ASTM) has issued numerous standards related to nickel-based alloys, covering aspects such as chemical composition, mechanical properties, heat treatment, and testing methods. Some common standards include:

   • ASTM B574: Standard specification for low-carbon nickel-chromium-molybdenum-iron alloy rod and wire.
   • ASTM B637: Standard specification for precipitation-hardenable nickel-chromium-molybdenum alloy bars and forgings.
   • ASTM B564: Standard specification for nickel alloy forgings.
   • ASTM B622: Standard specification for seamless nickel and nickel-cobalt alloy pipe and tube.
   • ASTM B366: Standard specification for factory-made wrought nickel and nickel alloy welding fittings.
   • ASTM E1473: Standard test methods for evaluating nickel-base alloys for resistance to high-temperature oxidizing.

2. ASME Standards: The American Society of Mechanical Engineers (ASME) standards are commonly applied in areas such as pressure vessels, piping, and forgings. Relevant ASME standards for nickel-based alloys include:

   • ASME Boiler and Pressure Vessel Code: Providing guidelines for the design, material selection, fabrication, and inspection of nickel-based alloys.
   • ASME B31 Series Standards: Covering the design, construction, and inspection of pressure piping systems, including specifications for nickel-based alloy piping.

3. NACE Standards: NACE International issues standards and recommended practices for materials used in corrosive environments, particularly in the oil and gas industry, to ensure durability and safety.

4. ISO Standards: The International Organization for Standardization (ISO) publishes standards related to nickel-based alloys, covering aspects such as chemical composition, mechanical properties, and heat treatment.

5. Customer Specifications: In addition to international standards, specific specifications from customers or industries may also apply to the production and application of nickel-based alloys. These specifications may be industry-specific or internal standards of particular companies.

When using nickel-based alloys, it is important to select appropriate standards and specifications based on the specific application requirements and to strictly adhere to relevant requirements to ensure the desired performance and quality of the products. Regular quality control and inspection are also essential for maintaining product quality.

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