BS EN 3833-2019 pdf free download.Aerospace series – Bolts, MJ threads, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), passivated – Classification: 1 550 MPa (at ambient temperature) / 650 °C – Technical specification
This European standard specifies the characteristics, qualication and acceptance requirements for bolts with M] threads in NI-PH2601, passivated, for aerospace applications.
Classfication: 1 550 MPa1/650。C2.
It is applicable whenever referenced.
2 Normative references
The fllowing 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.
EN IsO 3452-1, Non-destructive testing – Penetrant testing – Part 1: General principles
EN IsO 4288, Geometrical Product Specfications (GPS) – Surface texture: Profile method – Rules and procedures. for the assessment of surface texture
EN ISO 6508- 1, Mtallic materials – Rockwell hardness test – – Part 1: T’est method
EN ISo 6892- 1, Metallic materials – Tensile testing – Part 1: Method of test at room temperature
EN Iso 6892-2, Metallic materials – Tensile testing – Part 2: Method of test at elevated temperature
EN IS0 9227. Corrosinn tests in rtifieial atmopheres – Solt spray tests
IS0 2859-1, Sampling procedures for inspection by attributes 一Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lt-by-lot inspection
IS0 5855-2, Aerospace – M] threads – Part 2: Limit dimensions for bolts and nuts
IS0 7961。Aerospace一Bolts 一Test methods
ASTM E112-13, Standard Test Methods for Determining Average Grain SIze3
3 Terms and definitions
For the purposes of this standard, the fllowing terms and definitions apply.
3.1 batch
quantity of finished parts, of the same type and same diameter, produced from the same 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
3.2inspection lot
quantity of parts from a single production batch with the same part number which completely defines the part
3.3Surface discontinuities
3.3.1crack
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 rlling or forging them into the surface
3.3.4 inclusions
non-metallic particles originating from the material manufacturing process
Note 1 to entry: These particles may be isolated or arranged in strings.
3.4 test temperature
ambient temperature unless otherwise specified
3.5 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
3.6 critical defect
defect that, according to judgement and experience, is likely to result in hazardous or unsafe conditions for individuals using, maintaining or depending upon the considered product, or that is likely to prevent performance of the function of a major end item
3.7 major defect
defect other than critial, that is likely to result in a failure or to reduce materially the usability of the considered product for its intended purpose
3.8 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 lttle bearing on the effective use or operation of this product
4 Quality assurance
4.1 Qualification
The manufacturer’s operations shall be an approved production organisation for aerospace products and shall demonstrate that it has implemented and is able to maintain a quality management system
(e. g. according to EN 9100 or an equivalent aerospace accepted and established quality management system).
The qualification procedure for aerospace standard products [e.g. according to EN 9133 or an equivalent aerospace accepted and established qualification procedure) shall be used and documented according to the specified tests if not otherwise agreed between customer and supplier.
The product qualification shall be performed to the process as defined in e. g. EN 9133 to achieve a qualification approval from the controlling Certification Authority (CA].
Qualification inspections and tests (requirements, methods, numbers of bolts) are specified in Table 1.
They shall be carried out on:
– each type and diameter of bolt;
-25 bolts selected from a single inspection lot by simple random sampling.BS EN 3833 pdf download.