It generally does not cover gas and liquid petroleum pipelines (refer to AS 2885 ), mineral slurry pipelines, or nuclear piping. 2. Piping Classification

Required for specific materials and thicknesses (e.g., carbon steel ≥32is greater than or equal to 32 mm) to relieve internal stresses. 5. Testing and Inspection

Land steam boilers, prime movers, and refrigeration systems.

AS 4041 provides a list of pre-qualified materials and refers to other standards for welding and NDE procedures.

No service limit; requires the highest weld quality and 100% non-destructive examination (NDE) for specific thicknesses.

Applies to any gas or flammable liquid up to 10 MPa (gauge) and temperatures up to 400∘C400 raised to the composed with power cap C