Aerospace series - Steel FE-PL75 - 1 100 MPa ≤ Rm ≤ 1 250 MPa - Bars - De ≤ 100 mm

This European Standard specifies the requirements relating to:
Steel FE-PL75
1 100 MPa ≤ Rm ≤ 1 250 MPa
Bars
De ≤ 100 mm
for aerospace applications.

Luft- und Raumfahrt - Stahl FE-PL75 - 1 100 MPa ≤ Rm ≤ 1 250 MPa - Stangen - De ≤ 100 mm

Série aérospatiale - Acier FE-PL75 - 1 100 MPa ≤ Rm ≤ 1 250 MPa - Barres - De ≤ 100 mm

Aeronavtika - Jeklo FE-PL75 - 1100 MPa ≤ Rm ≤ 1250 MPa - Palice - De ≤ 100 mm

General Information

Status
Published
Publication Date
08-Jan-2018
ICS
49.025.10 - Steels
Technical Committee
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
27-Dec-2017
Due Date
03-Mar-2018
Completion Date
09-Jan-2018
Ref Project
EN 2137:2017 - Aerospace series - Steel FE-PL75 - 1 100 MPa ≤ Rm ≤ 1 250 MPa - Bars - De ≤ 100 mm

Overview

EN 2137:2017 (published as SIST EN 2137:2018) is a CEN/AeroSpace standard that specifies requirements for Steel FE-PL75 in bar form for aerospace applications. It covers low-alloy, high-strength bars with an overall tensile strength range of 1 100 MPa to 1 250 MPa and nominal bar diameters De ≤ 100 mm. The standard gives chemical composition limits, production and heat-treatment methods, delivery conditions and test/inspection references used by manufacturers, purchasers and regulators in the aerospace supply chain.

Key topics and requirements

  • Material designation: Steel FE-PL75 (low-alloy general purpose steel for aerospace).
  • Tensile strength: Primary range 1 100–1 250 MPa (reference values and test conditions are included in the standard).
  • Chemical composition (typical limits given):
    • Carbon (C) 0.26–0.33%, Silicon (Si) 0.10–0.40%, Manganese (Mn) 0.20–0.60%
    • Phosphorus (P) ≤ 0.025%, Sulfur (S) ≤ 0.020%
    • Chromium (Cr) 1.20–1.50%, Molybdenum (Mo) 0.30–0.60%, Nickel (Ni) 3.30–4.30%
  • Production: Bars produced from air-melted metal; applicable forms include drawn, ground or rolled bars with De ≤ 100 mm.
  • Heat treatment and delivery conditions: Annealed and hardened & tempered conditions are specified; reference heat treatment example is hardening ~850 °C (±10 °C) followed by tempering ~585 °C (±5 °C) - consult the standard for exact cycles and acceptance criteria.
  • Mechanical and hardness requirements: Strength, proof stress and hardness values are specified according to test pieces and delivery conditions; mechanical testing and dimensional inspections are required as per the tables.
  • Inspection and qualification: Marking, dimensional inspection and a purchaser–manufacturer qualification programme are referenced.

Applications and users

  • Practical uses: selection and procurement of high-strength aerospace bars where high tensile performance and controlled chemistry are required (e.g., structural components, machined parts and other mechanical elements in aerospace systems).
  • Who uses this standard:
    • Aerospace OEMs and tier suppliers specifying raw material requirements
    • Steel bar manufacturers and heat-treatment shops producing FE-PL75 bars
    • Procurement, quality and inspection personnel verifying compliance
    • Design and materials engineers selecting alloys for high-strength applications

Related standards

  • EN 2034 to EN 2042 series - dimensions and tolerances for round, hexagonal, rectangular and square aerospace bars
  • EN 4258 - organization of aerospace metallic material standards
  • EN 4500-005 - rules for drafting and presentation of steel material standards
  • EN 4700-002 - technical specification for wrought steel bars and sections

EN 2137:2017 is maintained under ASD-STAN and adopted by CEN members; consult the full standard for definitive test methods, tables and contractual requirements when specifying Steel FE-PL75 for aerospace use.

Frequently Asked Questions

SIST EN 2137:2018 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Steel FE-PL75 - 1 100 MPa ≤ Rm ≤ 1 250 MPa - Bars - De ≤ 100 mm". This standard covers: This European Standard specifies the requirements relating to: Steel FE-PL75 1 100 MPa ≤ Rm ≤ 1 250 MPa Bars De ≤ 100 mm for aerospace applications.

This European Standard specifies the requirements relating to: Steel FE-PL75 1 100 MPa ≤ Rm ≤ 1 250 MPa Bars De ≤ 100 mm for aerospace applications.

SIST EN 2137:2018 is classified under the following ICS (International Classification for Standards) categories: 49.025.10 - Steels. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 2137:2018 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.PP49.025.10JeklaSteelsICS:Ta slovenski standard je istoveten z:EN 2137:2017SIST EN 2137:2018en,fr,de01-marec-2018SIST EN 2137:2018SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2137
December
t r s y ICS
v {ä r t wä s r English Version
Aerospace series æ Steel FEæPL y w æ
s
s r r MPa ≤ Rm ≤
s
t w r MPa æ Bars æ De ≤
s r r mm Série aérospatiale æ Acier FEæPL y w æ
s
s r r MPa ≤ Rm ≤
s
t w r MPa æ Barres æ De ≤
s r r mm
Luftæ und Raumfahrt æ Stahl FEæPL y w æ
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s r r MPa ≤ Rm ≤
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t w r MPa æ Stangen æ De ≤
s r r mm This European Standard was approved by CEN on
s s September
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
t s u yã t r s y ESIST EN 2137:2018

Page European foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references . 5 3 Requirements . 5
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