What is BS EN 10222‑5 - Martensitic, austenitic, and austenitic-ferritic steels about?
BS EN 10222 is a series of European standards on steel forgings for pressure purposes that discusses the best procedures and specifications on manufacturing high-quality martensitic, austenitic, and austenitic-ferritic stainless steel forged products for the construction of safe pressure equipment.
BS EN 10222-5 is the fifth part of a series of documents on steel forgings for pressure purposes. BS EN 10222‑5 specifies the technical delivery conditions for forgings for pressure purposes, made of stainless steel, including creep resisting steels. Chemical composition and mechanical properties are specified.
NOTE: Once this standard is published in the EU Official Journal (OJEU) under Directive 2014/68/EU, the presumption of conformity to the Essential Safety Requirements (ESRs) of Directive 2014/68/EU is limited to technical data of materials in this standard and does not presume adequacy of the material to a specific item of equipment. Consequently, the assessment of the technical data stated in this material standard against the design requirements of this specific item of equipment to verify that the ESRs of Directive 2014/68/EU are satisfied, needs to be done. The series EN 10222–1 to EN 10222−5 is structured so that the data related to different materials is in the part allocated for that material. The presumption of conformity to the Essential Safety Requirements of Directive 2014/68/EU depends on both the text in part 1 and the data in parts 2, 3, 4, or 5.
Who is BS EN 10222‑5 - Martensitic, austenitic, and austenitic-ferritic steels for?
BS EN 10222-5 on steel forgings for pressure purposes is relevant to:
- Manufacturer of martensitic, austenitic, and austenitic-ferritic forged products
- Manufacturer of pressure appliances
Why should you use BS EN 10222‑5- Martensitic, austenitic, and austenitic-ferritic steels?
The iron in steel can exist in several different crystalline structures, dependent on the conditions of its creation. Ferrite, austenite, and martensite are all examples of iron's crystal structures, and all are found within different types of steel.
BS EN 10222‑5 navigates you through the steelmaking process and manufacture of the product, chemical composition, and chemical corrosion properties, mechanical properties, surface condition, internal soundness, resistance to intergranular corrosion.
BS EN 10222‑5 exemplifies the required chemical composition and heat treatment that helps you achieve precision in terms of product functionality and specification.
As a user of BS EN 10222-5, you can be ensured of all the requirements of forgings for pressure purposes, made of martensitic, austenitic, and austenitic-ferritic steels. With obedience and compliance to BS EN 10222-5, you can efficiently forge high-quality martensitic, austenitic, and austenitic-ferritic steel forgings for pressure purposes. With BS EN 10222-5, you will be able to undergo the shaping of a permanent steel part without it cracking under high pressure and corrosive environments. As a result, it will enable you to provide and deliver better end-products that have high tensile and fatigue strength and long service life. With BS EN 10222-5 you can be ensured that the products consistently meet and exceed quality assurance targets.
What’s changed since the last update?
BS EN 10222‑5:2017 supersedes BS EN 10222-5:2000, which is withdrawn.
Significant technical changes to the previous version EN 10222-5:1999 are listed below:
- Updating of the normative references
- Addition of a new annex b (informative)
- Updating of steel designations
- Updating of the mandatory and optional information’s in chapter 5.2
- New statements concerning steelmaking process and delivery conditions
- Table 1 containing values and statements on the heat treatment of the steels updated
- New table 4 containing values for the mechanical properties at room temperature
- Updating of annex za in relationship with EU directive 2014/68/EU (previous annexes za and ZB)
