SIST EN 3302:2017

Aerospace series - Bolts in heat resisting steel FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Technical specification

This European Standard specifies the technical, qualification and quality assurance requirements for bolts in material FE-PM1708 (FV535) of tensile strength class 1 000 MPa at room temperature, maximum test temperature of material 550 °C.
Primarily for aerospace applications it is applicable to such bolts when referenced on the product standard or drawing.

Luft- und Raumfahrt - Schrauben aus hochwarmfestem Stahl FE-PM1708 (FV535) - Klasse: 1 000 MPa/550 °C - Technische Lieferbedingungen

Série aérospatiale - Vis en acier résistant à chaud FE-PM1708 (FV535) - Classification : 1 000 MPa/550 °C - Spécification technique

La présente norme spécifie les exigences techniques, de qualification et d’assurance de la qualité des vis en acier résistant à chaud FE-PM1708 (FV535), classification de traction 1 000 Mpa, à température ambiante, température maximale d’essai du matériau 550 °C.
Cette norme, essentiellement prévue pour les applications aéronautiques, s’applique aux vis lorsqu’elle est citée dans la norme de produit ou sur le dessin.

Aeronavtika - Sorniki iz toplotnoodpornega jekla FE-PM1708 (FV535) - Klasifikacija: 1000 MPa/550 °C - Tehnična specifikacija

Ta evropski standard določa tehnične, kvalifikacijske in kakovostne zahteve za sornike iz toplotnoodpornega jekla FE-PM1708 (FV535) natezne trdnosti 1000 MPa pri sobni temperaturi, pri čemer je najvišja preskusna temperatura materiala 550 °C.
Uporablja se predvsem v vesoljskih plovilih za sornike, ki se sklicujejo na standard izdelka ali risbe.

General Information

• Status: Published
• Publication Date: 08-Aug-2017
• ICS: 49.025.10 - Steels
• ICS: 49.030.20 - Bolts, screws, studs
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 07-Aug-2017
• Due Date: 12-Oct-2017
• Completion Date: 09-Aug-2017
• Ref Project: EN 3302:2017 - Aerospace series - Bolts in heat resisting steel FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Technical specification

Relations

• Revised: SIST EN 3302:2008 - Aerospace series - Bolts in heat resisting steel FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Technical specification
• Effective Date: 11-Jul-2012
• Replaces: SIST EN 3302:2008 - Aerospace series - Bolts in heat resisting steel FE-PM1708 (FV535) - Classification: 1 000 MPa/550 °C - Technical specification
• Effective Date: 02-Aug-2017

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 3302:2017
01-oktober-2017
1DGRPHãþD
SIST EN 3302:2008
$HURQDYWLND6RUQLNLL]WRSORWQRRGSRUQHJDMHNOD)(30)9
.ODVLILNDFLMD03Dƒ&7HKQLþQDVSHFLILNDFLMD
Aerospace series - Bolts in heat resisting steel FE-PM1708 (FV535) - Classification: 1
000 MPa/550 °C - Technical specification
Luft- und Raumfahrt - Schrauben aus hochwarmfestem Stahl FE-PM1708 (FV535) -
Klasse: 1 000 MPa/550 °C - Technische Lieferbedingungen
Série aérospatiale - Vis en acier résistant à chaud FE-PM1708 (FV535) - Classification :
1 000 MPa/550 °C - Spécification technique
Ta slovenski standard je istoveten z: EN 3302:2017
ICS:
49.025.10 Jekla Steels
49.030.20 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
SIST EN 3302:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 3302:2017

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SIST EN 3302:2017


EN 3302
EUROPEAN STANDARD

NORME EUROPÉENNE

July 2017
EUROPÄISCHE NORM
ICS 49.030.20 Supersedes EN 3302:2007
English Version

Aerospace series - Bolts in heat resisting steel FE-PM1708
(FV535) - Classification: 1 000 MPa/550 °C - Technical
specification
Série aérospatiale - Vis en acier résistant à chaud FE- Luft- und Raumfahrt - Schrauben aus hochwarmfestem
PM1708 (FV535) - Classification : 1 000 MPa/550 °C - Stahl FE-PM1708 (FV535) - Klasse: 1 000 MPa/550 °C -
Spécification technique Technische Lieferbedingungen
This European Standard was approved by CEN on 10 April 2017.

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 CEN-CENELEC Management Centre 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 CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3302:2017 E
worldwide for CEN national Members.

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SIST EN 3302:2017
EN 3302:2017 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 5
4 Certification and quality assurance . 7
5 Technical requirements and test methods . 8
(informative) Standard evolution form . 25

2

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SIST EN 3302:2017
EN 3302:2017 (E)
European foreword
This document (EN 3302:2017) has been prepared by the Aerospace and Defence Industries Association of
Europe - Standardization (ASD-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 ASD,
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 January 2018, and conflicting national standards shall be
withdrawn at the latest by January 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 3302:2007.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus,
Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
3

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SIST EN 3302:2017
EN 3302:2017 (E)
1 Scope
This European Standard specifies the technical, qualification and quality assurance requirements for bolts
in material FE-PM1708 (FV535) of tensile strength class 1 000 MPa at room temperature, maximum test
temperature of material 550 °C.
Primarily for aerospace applications it is applicable to such bolts when referenced on the product standard
or drawing.
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.
1) 2)
EN 2493 , Aerospace series — Heat resisting steel FE-PM38 — 1 000 MPa ≤ R ≤ 1 140 MPa — Bars
m
EN 4244, Aerospace series — Heat resisting alloy FE-PM1708 — Vacuum arc remelted, hardened and
2)
tempered, bar a or D ≤ 200 mm, 1 000 MPa ≤ R ≤ 1 140 MPa
m
EN 4245, Aerospace series — Heat resisting alloy FE-PM1708 — Vacuum arc remelted, as forged, forging
2)
stock D ≤ 300 mm
e
EN 9100, Quality Management Systems — Requirements for Aviation, Space and Defense Organizations
EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace standard
parts
EN ISO 3452-1, Non-destructive testing — Penetrant testing — Part 1: General principles (ISO 3452-1)
EN ISO 4288, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Rules and
procedures for the assessment of surface texture (ISO 4288)
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 3534:1977, Statistics — Vocabulary and symbols
ISO 6508-1, Metallic materials — Rockwell hardness test — Part 1: Test method
ISO 9000, Quality management systems — Fundamentals and vocabulary
TR 3040-1, Aerospace series — Quality Assurance — EN aerospace products — Part 1: List of approved
3)
manufacturers

1)
Inactive for new designation, see EN 4244 and EN 4245.
2)
Published as ASD-STAN Prestandard at the date of publication of this standard. http://www.asd-stan.org/
3) Published as ASD-STAN Technical Report at the date of publication of this standard. http://www.asd-stan.org/
4

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SIST EN 3302:2017
EN 3302:2017 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
production batch
quantity of finished parts fabricated by the same process from a single material cast (single heat of alloy),
having the same basic part number and diameter, heat treated together to the same specified condition and
produced as one continuous run
3.2
inspection lot
quantity of parts from a single production batch of the same part number which completely defines the part
3.3 Surface discontinuities
3.3.1
crack
rupture in the material which may extend in any direction and which may be intercrystalline or
transcrystallyne in character
3.3.2
seam
longitudinal surface defect in the form of an unwelded open fold in the material
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
inclusion
non-metallic particles originating from the material making process
Note 1 to entry: They may exist as discrete particles or strings of particles extending longitudinally.
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
[SOURCE: ISO 3534, see definition]
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
[SOURCE: ISO 3534, see definition]
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
5

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SIST EN 3302:2017
EN 3302:2017 (E)
[SOURCE: ISO 3534, see definition]
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
[SOURCE: ISO 3534, see definition]
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
[SOURCE: ISO 3534, see definition]
3.10
Limiting Quality
LQ
10
in a sampling plan, a quality limit which corresponds to a specified and relatively low probability of
acceptance in this case 10 % probability of acceptance
Note 1 to entry: It is the limiting lot quality characteristic that a lot of this quality would occur.
Note 2 to entry: When expressed as a per cent defective, it may be referred to as a lot tolerance per cent defective.
[SOURCE: ISO 3534, see definition]
3.11
Acceptance Quality Limit
AQL
a quality limit which in a sampling plan corresponds to a specified but relatively high probability of
acceptance
Note 1 to entry: 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.
[SOURCE: ISO 3534, see definition]
3.12
finished bolt
a bolt ready for use, inclusive of any possible treatments and/or surface coatings, as specified in the
dimensional standard or definition document
3.13
definition document
document specifying all the requirements for bolts i.e.
• metallurgical,
• geometrical and dimensional,
• functional (strength and temperature classes).
6

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SIST EN 3302:2017
EN 3302:2017 (E)
4 Certification and quality assurance
4.1 Qualification
4.1.1 Purpose
The purpose of qualification tests is to ensure that the bolt design and bolt manufacturing conditions allow
the bolt to comply with the requirements of this standard.
4.1.2 Conditions
The qualification tests summarized in Table 3 shall be performed on each type and diameter of bolt.
Proposed changes in manufacturing source or procedure shall be subject to the requirements of EN 9133.
25 bolts selected from a single inspection lot by simple random sampling shall be subjected to the
qualification tests.
The number of bolts to be subjected to each test as well as the method(s) to be used is specified in Table 1.
The tests to be applied to each bolt are shown in Table 4.
The test programme may possibly be reduced, this decision will be based on the comparison of results
obtained from parts of similar design, size and manufacturing conditions.
All or part of these tests may also be performed for production acceptance, when a reinforced inspection
seems to be necessary, or to survey bolts that have not proved satisfactory in use.
In that case, the sample to be subjected to these tests is the same as that used for production acceptance
tests.
4.1.3 Qualification test requirements and procedures
The qualification test requirements and procedures shall be to the requirements of EN 9133.
4.1.4 Qualified manufacturers
A list of qualified manufacturers for specific standard parts is listed in TR 3040-1.
4.2 Acceptance
4.2.1 Purpose
The purpose of acceptance 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 tests are summarized in Table 3. They shall be performed on each batch. Table 1 specifies, the
test method and sampling plan to be used for each test. Bolts from the batch to be tested shall be selected
by simple random sampling.
Each bolt may be submitted to several tests.
The bolts to be subjected to destructive tests may be those on which non-destructive tests have been
performed.
7

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SIST EN 3302:2017
EN 3302:2017 (E)
4.3 Quality system certification
4.3.1 Purpose
The purpose of quality system certification is to ensure that the manufacturer has demonstrated the
acceptability of his quality system and his ability for continuing production of parts to this standard, to the
required limit of quality.
4.3.2 Requirements and procedure
The requirements and procedures for quality system certification shall be to the requirements of ISO 9000
and EN 9100.
4.4 Responsibility for inspection and tests
The manufacturer is responsible for the performance of all inspection and test requirements as specified
herein. Each manufacturer will use their own or exceptionally, any other facilities approved in accordance
with 4.1 and 4.2 for the implementation of these inspection and test requirements.
4.5 Inspection and test report
A test report showing actual numerical values shall be provided at the purchaser's option as part of the
terms of the purchase order.
5 Technical requirements and test methods
Table 1 — Technical requirements and test methods (1 of 7)
a
Clause Characteristic Requirement Inspection and test method Sample
Q/A
size
5.1  Material Material FE-PM1708 to As stated in the material
specification EN 2493 supplied specification.
by an approved source: shall
be used for the manufacture of
bolts to this standard.
5.2  Dimensions,  Q 25
tolerances of
A Tables
form and
6 and 7
position,
threads and
quality
5.2.1  Dimensions The dimensions of the finished All dimensions shall be
bolts shall conform to the controlled by an approved
product standard or definition system of gauging.
document.
5.2.2  Tolerances of Tolerances of form and Tolerances of form and
form and position shall conform to the position shall be controlled by
position product standard or definition an approved system of
document. gauging.
5.2.3  Threads Threads shall conform to the Threads shall be gauged by an
product standard or definition approved system of gauging.
document.
8

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SIST EN 3302:2017
EN 3302:2017 (E)
Table 1 (2 of 7)
a
Clause Characteristic Requirement Inspection and test method Sample
Q/A
size
5.3  Manufacturing
5.3.1  Forging The heads of the bolts shall be The method of forging shall be
formed by hot or cold forging. approved.
If hot forged the forging
temperature shall not exceed
1 170 °C.
  The heating equipment for
forging shall be of a type which
ensures a consistent
temperature throughout the
batch.
5.3.2  Heat treatment The heat treatment medium or The heat treatment equipment
atmosphere shall not cause shall be approved.
any surface contamination
except as permitted by 5.5.6.
  Any scale which will not be The equipment for abrasive
removed by subsequent blasting shall be approved.
machining shall be removed by
abrasive blasting.
5.3.2.1  Harden and The headed blanks shall be
temper heat pre-heated to 650 °C/700 °C,
treatment then heated to (1 170 ± 10) °C,
followed by oil or fast gas
quench. The headed and
hardened blanks shall then be
tempered at (610 ± 5) °C for
2 hrs to 5 hrs and air cooled,
followed by 620 °C/ 650 °C for
2 hrs to 5 hrs and air cooled.
5.3.3  Removal of After all heat treatment the
surface headed blanks shall have all
contamination the shank and bearing surface
of the head machined:
a) For the removal of all
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 respect the requirements
of 5.5.1.

9

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SIST EN 3302:2017
EN 3302:2017 (E)
Table 1 (3 of 7)
a
Clause Characteristic Requirement Inspection and test method Sample
Q/A
size
5.3.4  Head to shank After completion of hardening, Dimensional check (see 5.5.2) Q 25
fillet double tempering and and visual examination.

A Tables
machining.
6 and 7
The underhead radius shall be
cold rolled sufficiently to
remove all evidence of
machining. Cold rolling the
head to shank fillet radius may
cause distortion of the fillet
area. Any such distortion shall
be in accordance with the
requirements of Figure 2
unless otherwise specified on
the bolt standard or definition
document.
 For parts with compound radii
between head and shank, cold
work only the radius that
blends with the head, however
it is acceptable for cold work to
extend over the compound
radius.
  The fillet shall not show See 5.5.7.1.
evidence of seams or inclusions.
5.3.5  Threads Threads shall be formed on the
hardened, double tempered
and machined blanks by a
single rolling operation.
5.3.6  Surface The surface roughness shall be The surface roughness of the Q 3
roughness as specified on the bolt thread shall be determined by
 A Tables
standard or definition visual comp
...