BS EN ISO 5832-3:2016 pdf download
BS EN ISO 5832-3:2016 pdf download.lmplants for surgery – Metallic materials Part 3: Wrought titanium 6-aluminium4-vanadium alloy (ISO 5832-3:2016).
This part of ISO 5832 specifies the characteristics of, and corresponding test methods for, the wrought titanium alloy known as titanium 6-aluminium 4-vanadium alloy (Ti 6-A14-V alloy) for use in the manufacture of surgical implants.
NOTF the mechanicaL properties of a sample obtained from a finished product made of this alkiy may not necessarily comply with the speciIicatioiis given in this pan of ISO 5832.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies,
ISO 6892.1)1. MetallIc materials — Tensile testing — Part 1: Method of test at room temperature ISO 7438, Metallic materials — Rend test
ISO 20160. Implants for surgery — Metallic materials — Classification of microstructures for alpha.beta titanium alloy bars
KN 3124-003, Aerospace series — Test method — Microstructure of (a4) titanium alloy wrought products — Part 003: Microstructw-e of p1 ate
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6892-1 and the following apply.
3.1
origInal gauge length
length between gauge length marks on the test piece measured at room temperature before the test
ISOIJRCE: ISO 6892-1;—, 3.1.11
4 Chemical composition
The heat/ingot analysis of a representative sample of the alloy when determined in accordance with
Clause shall comply with the chemical composition specified in Table 1.
NOTE I Ingot analysis may be used for determining all chemical requireinerus except hydrogen.
The analysis 01 hydrogen shall be carried out after the final heat treatment and final surface treatment.
Requirements for the major and minor elemental constituents for titanium 6-aluminium 4-vanadium alloy are listed In Table 1.
In this annex, two different standards are referenced showing microstructures of typical alpha+beta titanium alloy Ti 6A1 4V intended for the use of identification and classification of the mcrastrucLure of a given material. ISO 20160 is presenting microstructures in the transverse section at *200 magnification. ISO 20160 applies to round bars up to a nominaL diameter of 100 mm. It was replacing ETTC 2 F.dition 2.
P.licrosiructures of flat rolled products, like sheet or plates, cannot be rated according to ETTC 2. For this type of product, another microstructural catalogue was made available. ETTC 4 Edition 2 is showing mlcrostructures in the transverse section at *100 and 500 magnification. Product sizes of this catalogue were limited to a range of thicknesses above 5 mm and below 30 mm. The same microstructures are shown In EN 3114-003 but with different decignatlons. Table A.1 shows the correlation of the designations oIthe micrographs between ETTC 4 Edition 2 and EN 3114-003.
KTTC4 Edition 2 Is showing acceptable microstructures In the range ofPl to P36 for Standard Aerospace Quality (STQ). For nwdical application, the range of acceptable microstructures Is intentionally limited to P1 (311) to P13 (3T13) at *100 magnification showing globular structures.
ETTC 4 Edition 2 is considering only plates. Le. products over or equal 5 mm in thkkness. It is recommended here to use the microstructural pictures also for sizes equal to or below 5 mm.
