SIST EN 3833:2005
(Main)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
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 standard specifies the characteristics, qualification and acceptance requirements for bolts with MJ threads in NI-PH2601.
Classification: 1 550 MPa ) /650 °C )
It is applicable whenever referenced.
Luft- und Raumfahrt - Schrauben, MJ-Gewinde, aus hochwarmfester Nickelbasislegierung NI-PH2601 (Inconel 718), passiviert - Klasse: 1 550 MPa (bei Raumtemperatur) / 650 °C - Technische Lieferbedingungen
Série aérospatiale - Vis a filetage MJ, en alliage résistant a chaud a base de nickel NI-PH2601 (Inconel 718), passivées - Classification : 1 550 MPa (a température ambiante) / 650 °C - Spécification technique
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
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 3833:2005
01-junij-2005
1DGRPHãþD
SIST EN 3833:2004
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
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
Luft- und Raumfahrt - Schrauben, MJ-Gewinde, aus hochwarmfester
Nickelbasislegierung NI-PH2601 (Inconel 718), passiviert - Klasse: 1 550 MPa (bei
Raumtemperatur) / 650 °C - Technische Lieferbedingungen
Série aérospatiale - Vis a filetage MJ, en alliage résistant a chaud a base de nickel NI-
PH2601 (Inconel 718), passivées - Classification : 1 550 MPa (a température ambiante) /
650 °C - Spécification technique
Ta slovenski standard je istoveten z: EN 3833:2004
ICS:
49.030.20 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
SIST EN 3833:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 3833:2005
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SIST EN 3833:2005
EUROPEAN STANDARD
EN 3833
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2004
ICS 49.030.20 Supersedes EN 3833:2003
English version
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
Série aérospatiale - Vis à filetage MJ, en alliage résistant à Luft- und Raumfahrt - Schrauben, MJ-Gewinde, aus
chaud à base de nickel NI-PH2601 (Inconel 718), hochwarmfester Nickelbasislegierung NI-PH2601 (Inconel
passivées - Classification : 1 550 MPa (à température 718), passiviert - Klasse: 1 550 MPa (bei Raumtemperatur)
ambiante) / 650° C - Spécification technique / 650° C - Technische Lieferbedingungen
This European Standard was approved by CEN on 11 September 2003.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3833:2004: E
worldwide for CEN national Members.
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SIST EN 3833:2005
EN 3833:2004 (E)
Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Terms and definitions .4
4 Quality assurance.6
5 Requirements.6
Annex A (normative) Passivation treatment for bolts .26
Annex B (informative) Tensile, stress rupture and tension fatigue – Areas and loads formulae .27
2
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SIST EN 3833:2005
EN 3833:2004 (E)
Foreword
This document (EN 3833:2004) has been prepared by the European Association of Aerospace
Manufacturers - Standardization (AECMA-STAN).
After enquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
AECMA, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by May 2005, and conflicting national standards shall be withdrawn at
the latest by May 2005.
This document supersedes EN 3833:2003.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and the United Kingdom.
3
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SIST EN 3833:2005
EN 3833:2004 (E)
1 Scope
This standard specifies the characteristics, qualification and acceptance requirements for bolts with MJ
threads in NI-PH2601, passivated, for aerospace applications.
1) 2)
Classification: 1 550 MPa /650 °C
It is applicable whenever referenced.
2 Normative references
The following referenced documents are indispensable for the application 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
acceptable quality limit (AQL) for lot-by-lot inspection
ISO 3452, Non-destructive testing – Penetrant inspection – General principles
ISO 4288, Geometrical Product Specifications (GPS) – Surface texture: Profile method – Rules and
procedures for the assessment of surface texture
ISO 6508-1, Metallic materials – Rockwell hardness test – Part 1: Test method (scales A, B, C, D, E, F,
G, H, K, N, T)
ISO 6892, Metallic materials – Tensile testing at ambient temperature
ISO 7961, Aerospace – Bolts – Test methods
ISO 9227, Corrosion tests in artificial atmospheres – Salt spray tests
EN 9133, Aerospace series – Quality management systems – Qualification procedure for aerospace
3)
standard parts
4)
ASTM E 112-96, Standard Test Methods for Determining Average Grain Size
3 Terms and definitions
For the purposes of this standard, the following 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.
3.2
inspection lot
quantity of parts from a single production batch with the same part number which completely defines the part
1) Minimum tensile strength of the material at ambient temperature
2) Maximum test temperature of the parts
3) Published as AECMA Prestandard at the date of publication of this standard
4) Published by: American Society for Testing and Materials (ASTM), 1916 Race street, Philadelphia, PA 19103-1187, USA
4
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SIST EN 3833:2005
EN 3833:2004 (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 rolling or forging 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
test temperature
ambient temperature unless otherwise specified
3.5
simple random sampling
the 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
a 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
a 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
3.8
minor defect
a 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
3.9
sampling plan
a plan according to which one or more samples are taken in order to obtain information and possibly to reach
a decision
3.10
limiting quality (LQ )
10
in a sampling plan, the quality limit which corresponds to a specified 10 % probability of acceptance
3.11
acceptance quality limit (AQL)
a quality limit which in a sampling plan corresponds to a specified but relatively high probability of
acceptance
It is the maximum per cent defective (or the maximum number of defects per hundred units) that, for
purposes of sampling inspection can be considered satisfactory as a process average.
5
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SIST EN 3833:2005
EN 3833:2004 (E)
3.12
finished bolt
a bolt ready for use, inclusive of any possible treatments and/or surface coatings, as specified in the product
standard or definition document
3.13
definition document
document specifying all the requirements for finished bolts
4 Quality assurance
4.1 Qualification
EN 9133
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.
The test programme may possibly be reduced, or the qualification of a bolt be granted without inspection or
testing. Any such decision shall be based on the results obtained on similar types and diameters of bolts
provided that the design and manufacturing conditions are identical.
Table 2 indicates the allocation of bolt samples for the inspections and tests.
4.2 Acceptance
4.2.1 Purpose
The purpose of acceptance inspections and tests is to check, as simply as possible, by a method
representative of actual use conditions, with the uncertainty inherent to statistical sampling, that the bolts
constituting the batch satisfy the requirements of this standard.
4.2.2 Conditions
Acceptance inspections and tests (requirements, methods, numbers of bolts) are specified in Table 1 ; they
shall be carried out on each batch. Bolts from the batch to be tested shall be selected by simple random
sampling.
Each bolt may be submitted to several inspections or tests.
If a more stringent inspection is deemed necessary, all or part of the qualification inspections and tests may
be performed during the acceptance inspection and testing. In this case, the number of bolts submitted to
these inspections and tests is the same as that submitted for qualification inspection and tests.
4.2.3 Responsibility
Acceptance inspections and tests shall be carried out by the manufacturer, or under his responsibility.
4.2.4 Inspection and test report
A test report showing actual numerical values shall be provided if specified in the purchase order.
5 Requirements
See Table 1.
6
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SIST EN 3833:2005
EN 3833:2004 (E)
Table 1 — Technical requirements and test methods
a
Clause Characteristic Requirement Inspection and test method Q/A Sample
size
5.1 Material In accordance with the Chemical analysis or Q
product standard or definition certificate of compliance
A
document issued by the manufacturer
of the semi-finished product
5.2 Dimensions, In accordance with the Standard gauging Q 25
tolerances and product standard or definition
A Tables
tolerances of document
3 and 4
form and
position
5.3 Manufacturing
5.3.1 Forging The head of the bolts shall be The method of forging shall Q
formed by hot or cold forging. be indicated.
If hot forged, the forging
The equipment shall be
temperature shall be
approved.
between 1 040 °C and
1 080 °C and they shall be air
cooled.
The equipment shall ensure
a uniform temperature
throughout the batch.
5.3.2 Heat treatment
The heat treatment medium Calibration of the heat Q
or atmosphere shall not treatment equipment shall be
cause any surface confirmed.
contamination except as
permitted by 5.5.6.
Any scale not removed by Visual examination
subsequent machining shall
be removed by abrasive
blasting with an appropriate
equipment.
The headed blanks shall be Examination of the heat
precipitation heat treated at treatment specification
(720 ± 5) °C, held at
temperature for 8 h ± 15 min,
furnace cooled at (55 ± 5) °C
per hour to (620 ± 5) °C, held
at 620 °C for 8 h ± 15 min,
followed by air cooling or
faster.
Instead of the 55 °C per hour
cooling rate to 620 °C, parts
may be furnace cooled at any
rate provided the time at
620 °C is adjusted to give a
total precipitation time of
18 h min.
continued
7
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SIST EN 3833:2005
EN 3833:2004 (E)
Table 1 (continued)
a
Clause Characteristic Requirement Inspection and test method Q/A Sample
size
5.3.3 Removal of After precipitation treatment
surface
the headed blanks shall have
contamination the shank and bearing surface
by machining of the head machined:
a) for the removal of all See 5.5.6.
surface contamination and
oxide penetration;
b) to obtain a clean smooth
surface.
The amount of material See 5.5.1.
removed (see Figure 1) shall
be as little as practicable and
shall not exceed the limits of
Table 5.
5.3.4 Head to shank After completion of heat Dimensional check (see 5.2) Q 25
fillet
treatment and machining, the and visual examination
A Tables
underhead fillet radius shall
3 and 4
be cold rolled to remove all
visual signs of machining and
to create cold working.
This may cause distortion
which shall not exceed the
values in Figure 2, unless
otherwise specified on the
product standard or definition
document.
For parts with compound
radii between head and
shank (e.g. T head bolts),
only the radius that blends
with the head shall be cold
worked, however it is
acceptable for cold work to
extend over the compound
radius.
The fillet shall not show
seams or inclusions (see
Table 6).
5.3.5 Threads Shall be formed by a single Q
rolling process after full heat
treatment (see Figure 3).
5.3.6 Surface In accordance with the ISO 4288 Q 3
roughness
product standard or definition
Visual examination
A Tables
document
3 and 4
5.3.7 Passivation
Uncoated finished bolts shall ISO 9227, neutral salt spray Q 5
treatment be passivated in accordance (NSS) test
with Annex A (normative).
Visual examination A 100 %
After 2 h of salt spray, bolts
shall show no evidence of
corrosion or staining.
5.3.8 Surface coating
In accordance with the See applicable coating Q 3
product standard or definition standard.
A Tables
document
3 and 4
continued
8
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SIST EN 3833:2005
EN 3833:2004 (E)
Table 1 (continued)
a
Clause Characteristic Requirement Inspection and test method Q/A Sample
size
5.4 Mechanical A test sample shall be
properties
selected from each diameter
of bar/wire taken from each
cast, and shall be heat
treated together with a
production batch of bolts.
The sample selected shall be
sufficient to provide tensile
and stress rupture test
specimens. The test
specimens shall meet the
mechanical properties
required by the material
standard.
5.4.1 Tensile strength
The finished bolts shall
withstand the minimum tensile
loads specified in Table 7.
Externally wrenched bolts
shall not fail in the head to
shank area when subjected
to the tensile test.
Tensile tests are not
applicable to the following:
a) protruding head bolts of
grip length < twice the
nominal shank diameter;
b) countersunk head bolts of
grip length < × 2,5 the
nominal shank diameter;
c) threaded to head bolts of
overall length < × 3 the
nominal shank diameter or
bolts having an overall
length < 18 mm;
d) bolts of diameters of
< 4 mm.
In such cases acceptability
shall be based on the results
from test bars of the same
material heat treated within
the same process cycle.
5.4.1.1 – at ambient ISO 7961 for bolts Q 4
temperature
ISO 6892 for test specimens A Table 8
or
Table 9
5.4.1.2 – at elevated ISO 7961 for bolts Q 4
(650 ± 5) °C
temperature
ISO 6892 for test specimens
5.4.2 Stress rupture The finished bolts shall be ISO 7961 Q 3
maintained at (650 ± 2) °C
while the load specified in
Table 7 is applied
continuously.
There shall be no rupture in
less than 23 h.
continued
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SIST EN 3833:2005
EN 3833:2004 (E)
Table 1 (continued)
a
Clause Characteristic Requirement Inspection and test method Q/A Sample
size
5.4.3 Tension fatigue The test shall be carried out ISO 7961 Q 5
strength
on finished bolts.
Tension fatigue tests are not
applicable to the following:
a) protruding head bolts of
nominal length < 3 D;
b) countersunk head bolts of
nominal length < 3 D;
c) bolts having a nominal
length < 18 mm;
d) diameters < 5 mm;
e) bolts with drilled shanks;
f) bolts threaded to head.
Life:
– mean value:
min. 65 000 cycles
– individual value:
min. 45 000 cycles
max. 130 000 cycles
Frequency: 140 Hz max.
Loads: see Table 10.
For individual fatigue life
values less than
65 000
...
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