As a specification for fusion welded vessels, Clause 3 is extensive. Requirements include:
The 2009 specification lists permitted materials in Annex A (Ferritic steels), Annex B (Austenitic stainless steels), and Annex C (Non-ferrous). Key steel grades include: As a specification for fusion welded vessels, Clause
: It specifies the materials suitable for the construction of pressure vessels, emphasizing their ductility, toughness, and resistance to corrosion. The materials must be compatible with the process fluid and the operational environment. The materials must be compatible with the process
The 2009 PDF includes worked examples in Annex K—extremely useful for verification. It covers critical design aspects
PD 5500:2009 is a comprehensive specification for the design, material selection, and fabrication of high-integrity, unfired fusion-welded pressure vessels, serving as a critical global reference for the oil, gas, and nuclear industries. It covers critical design aspects, including fatigue assessment and strict manufacturing tolerances, often offering higher efficiency compared to other international standards. For more details, visit BSI Knowledge . PD 5500, EN 13445, ASME VIII Div 1, and ASME VIII Div 2