API Spec 5CRA:2025

API Spec 5CRA PDF

This document specifies the technical delivery conditions for corrosion-resistant alloy seamless products for casing, tubing, coupling stock and accessory material (including coupling stock and accessory material from bar) for two product specification levels:

• PSL-1, which is the basis of this document;
• PSL-2, which provides additional requirements for a product that is intended to be both corrosion and cracking resistant for the environments and qualification method specified in Annex G and in the ISO 15156 series or NACE MR0175.

This document contains no provisions relating to the connection of individual lengths of pipe. Demonstration of conformance to ISO 15156-3:2020 or NACE MR0175-2021 of material affected by end sizing, connection manufacture or welding operations is outside the scope of this document.

This document contains provisions relating to marking of tubing and casing after threading.

This document is applicable to the following five groups of products:

1. group 1, which is composed of stainless alloys with a martensitic or martensitic/ferritic structure;
2. group 2, which is composed of stainless alloys with a ferritic-austenitic structure, such as duplex and super-duplex stainless alloy;
3. group 3, which is composed of stainless alloys with an austenitic structure (iron base);
4. group 4, which is composed of nickel-based alloys with an austenitic structure (nickel base);
5. group 5, which is composed of bar only (Annex F) in age-hardened (AH) nickel-based alloys with austenitic structure.