What is the ASTM standard for Hastelloy pipe?

The ASTM standards for Hastelloy pipes, which cover a range of nickel-based, corrosion-resistant alloys, generally fall under the following categories.

ASTM B622:

This standard specifies seamless pipe and tube of nickel and nickel-based alloys, including Hastelloy. It covers alloys such as Hastelloy B, B-2, B-3, C-4, C-22, C-276, and other variations.

ASTM B619:

This standard applies to welded nickel and nickel-based alloy pipes, including Hastelloy grades. It specifies requirements for welded pipes intended for general corrosion and high-temperature service.

ASTM B626:

This standard covers welded Hastelloy tubes with the requirement of annealing after welding. It is used in applications where enhanced corrosion resistance is needed.

ASTM B775:

This specification includes general requirements for nickel and nickel-based alloy welded pipe, typically used as an overarching standard to ensure specific properties for welded Hastelloy pipes.

ASTM B474:

This standard provides guidelines for electric fusion-welded nickel alloy pipe, which includes Hastelloy alloys, particularly for pressure vessels and high-temperature applications.

Each of these ASTM standards outlines the chemical composition, mechanical properties, testing, and manufacturing requirements for Hastelloy pipes, ensuring they meet the necessary quality and performance criteria for use in demanding environments.