BS EN 3818 pdf free download

BS EN 3818-2019 pdf free download.Aerospace series – Bolts, MJ threads, in titanium alloy TI- P64001 – Strength class: 1 100 MPa [at ambient temperature) – Technical specification.
This European standard specifies the characteristics, qualification and acceptance requirements for
bolts with MJ threads in Tl-P64001, for aerospace applications.
Strength class: 1100 MPa1.
It is applicable whenever referenced.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
Iso 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
ISO 3452-1 • Non-destructive testing — Penetrant testing — Part 1: General principles
ISO 4288, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Rules and procedures for the assessment of surface texture
ISO 5855-2, Aerospace — Mj threads — Part 2: Limit dimensions for bolts and nuts
ISO 6892-1, Metallic materials — Tensile testing — Part 1: Method of test at room temperature Iso 7961, Aerospace — Bolts — Test methods
3 Terms and definitions
For the purposes of this standard the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— I EC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1 batch
quantity of finished bolts, of the same type and same diameter, produced from a material obtained from the same melt, manufactured in the course of the same production cycle, following the same manufacturing route and having undergone all the relevant heat treatments and surface treatments
3.2 inspection lot
quantity of bolts from a single production batch with the same part number which completely defines the bolt
1 MInimum tensile strength of the material at ambient temperature
BS EN 3818:2019
EN 3818:2019 (E)
3.3 Surface discontinuities
3.3.1 crack
rupture in the material which may extend in any direction and which may be intercrystalline or transcrystalline in character
3.3.2 seam
open surface defect
3.3.3 lap
surface defect caused by folding over metal fins or sharp corners and then compressing them into the surface
3.3.4 inclusions
non-metallic particles originating from the material manufacturing process. These particles may be isolated or arranged in strings
3.4 simple random sampling
taking of n items from a population of N items in such a way that all possible combinations of n items have the same probability of being chosen
3.5 major defect
defect, other than critical, that is likely to result in a failure or to reduce materially the usability of the considered product for its intended purpose
3.6 minor defect
defect that is not likely to reduce materially the usability of the considered product for its intended purpose, or that is a departure from established specification having little bearing on the effective use or operation of this product
3.7 sampling plan
plan according to which one or more samples are taken in order to obtain information and possibly to reach a decision
3.8 limiting quality EQ10
in a sampling plan, the quality level which corresponds to the specified 10 % probability of acceptance.BS EN 3818 pdf download.