ISO 13520:2023
Determination of ferrite content in austenitic stainless steel castings
Determination of ferrite content in austenitic stainless steel castings
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 11
- Дата публикации:
- 13 марта 2023 г.
- Издание:
- ISO IS 13520 edition 3 version 1
- ICS:
- 77.140.80
Procedures are covered for estimating ferrite content in certain grades of austenitic iron-chromium-nickel alloy castings that have compositions balanced to create the formation of ferrite as a second phase in amounts controlled within specified limits. Methods are described for estimating ferrite content by chemical, magnetic and metallographic means.
Abstract
Overview
ISO 13520:2023 specifies procedures for estimating (iron‑chromium‑nickel alloys) where a controlled amount of ferrite forms as a second phase. The standard describes three accepted approaches - , , and methods - and explains how to use Cr/Ni equivalents and the Schoefer diagram to estimate ferrite percentage. It also sets out ordering, acceptance, and certification information for suppliers and purchasers.
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