ISO 5832-9:2019
Implants for surgery — Metallic materials — Part 9: Wrought high nitrogen stainless steel
This document specifies the characteristics of, and corresponding test methods for, wrought stainless steel containing a mass fraction of 0,25 % to 0,50 % nitrogen for use in the manufacture of surgical implants for which high levels of strength and corrosion resistance are required.
NOTE 1 The mechanical properties of a sample obtained from a finished product made of this alloy can differ from those specified in this document.
NOTE 2 Requirements for other stainless steels for implants for surgery can be found in ISO 5832-1.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Chemical composition
4.1 Test samples
4.2 Cast analysis
5 Microstructure
5.1 Grain size
5.2 Absence of foreign phases
5.3 Inclusion content
6 Corrosion resistance
7 Mechanical properties
7.1 Test pieces
7.2 Tensile test
8 Test methods
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Chemical composition
4.1 Test samples
4.2 Cast analysis
5 Microstructure
5.1 Grain size
5.2 Absence of foreign phases
5.3 Inclusion content
6 Corrosion resistance
7 Mechanical properties
7.1 Test pieces
7.2 Tensile test
8 Test methods