Technical requirements of the ASTM B423 / ASME SB 423 standard
This regulatory documentation governs the physical and chemical properties and production methods for seamless pipes and tubes made of nickel-iron-chromium-molybdenum-copper alloys, classified under UNS N08825 and UNS N08221. The EV Group China manufacturing process ensures that the finished products meet strict corrosion resistance requirements, which is critical for operations in aggressive chemical environments.
The standard covers manufacturing regulations for both cold-worked and hot-finished products. The use of these alloys is justified in the oil and gas industry, chemical engineering, and in the production of equipment for processing sulfur compounds.
General technical delivery conditions, requirements for tolerances, and quality control methods for this type of rolled product are defined in the ASTM B829 / ASME SB829 standard, which is an essential supplement to the B423 specification.
Attention: The test methods and control procedures described in section 9 of the specification require compliance with industrial safety protocols. This standard is not an exhaustive guide to safety during product operation.