SIST EN 3220:2019

Aerospace series - Heat resisting nickel base alloy (Ni-P101HT) - Cold worked and softened - Bar and wire for continuous forging or extrusion for fasteners - 3 mm ≤ D ≤ 30 mm

This document specifies the requirements relating to:
Heat resisting nickel base alloy (Ni-P101HT)
Cold worked and softened
Bar and wire for continuous forging or extrusion for fasteners
3 mm ≤ D ≤ 30 mm
for aerospace applications.

Luft- und Raumfahrt - Hochwarmfeste Nickellegierung (Ni-P101HT) - Kaltverfestigt und abgeschreckt - Stangen und Drähte zum kontinuierlichen Verformen oder Strangpressen für Verbindungselemente - 3 mm ≤ D ≤ 30 mm

Aerospace series - Heat resisting nickel base alloy (Ni-P101HT) - Cold worked and softened - Bar and wire for continuous forging or extrusion for fasteners - 3 mm ≤ D ≤ 30 mm

Aeronavtika - Toplotno odporne zlitine na nikljevi osnovi (Ni-P101HT) - Hladno preoblikovana in mehko žarjena - Palice in žice za kontinuirno kovanje ali iztiskanje vezalnih elementov - 3 mm ≤ D ≤ 30 mm

Ta dokument določa zahteve, ki se nanašajo na:
toplotno odporne zlitine na nikljevi osnovi (Ni-P101HT),
hladno preoblikovane in mehko žarjene,
palice in žice za kontinuirno kovanje ali iztiskanje vezalnih elementov,
3 mm ≤ D ≤ 30 mm,
za uporabo v aeronavtiki.

General Information

• Status: Published
• Publication Date: 14-Apr-2019
• ICS: 49.025.05 - Ferrous alloys in general
• ICS: 49.030.01 - Fasteners in general
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 11-Apr-2019
• Due Date: 16-Jun-2019
• Completion Date: 15-Apr-2019
• Ref Project: EN 3220:2019 - Aerospace series - Heat resisting nickel base alloy (Ni-P101HT) - Cold worked and softened - Bar and wire for continuous forging or extrusion for fasteners - 3 mm ≤ D ≤ 30 mm

Overview

SIST EN 3220:2019 is a European standard developed by CEN, specifically tailored for the aerospace industry. It defines the requirements for heat-resisting nickel base alloy (Ni-P101HT) in the form of cold worked and softened bars and wires. These materials are intended for continuous forging or extrusion, used primarily in the production of fasteners with diameters ranging from 3 mm to 30 mm. The standard ensures consistent quality and performance suitable for critical aerospace applications where durability under high temperature and stress is demanded.

Key Topics

• Material Specification
  The standard covers the chemical composition and physical properties of Ni-P101HT, a heat-resisting nickel base alloy. Key elements include nickel as the base, along with chromium, molybdenum, titanium, and aluminum, providing resistance to heat and mechanical stress.

• Manufacturing Requirements
  Bars and wires must be cold worked and then softened through heat treatment at approximately 1010°C. The material undergoes vacuum melting and consumable electrode remelting to ensure purity and uniformity.

• Dimensional and Mechanical Properties
  The standard applies to products with diameters between 3 mm and 30 mm, compliant with dimensional standards EN 2344 (bars) and EN 2369 (wires). Mechanical properties cover proof stress, tensile strength, elongation, hardness, and impact strength to meet aerospace functional requirements.

• Heat Treatment and Delivery Conditions
  Specific heat treatments are prescribed to stabilize the material and optimize mechanical characteristics. Delivery conditions require cold working followed by a softening heat treatment to achieve desired microstructure and mechanical performance.

• Testing and Quality Control
  SIST EN 3220:2019 mandates tests for proof stress, tensile strength, elongation, hardness, and rupture stress. It also stipulates grain size limits to ensure consistent material structure. Product qualification and inspection procedures are established to guarantee conformity.

Applications

• Aerospace Fasteners
  The primary application for Ni-P101HT bars and wires per SIST EN 3220:2019 is in manufacturing critical fasteners such as nuts, bolts, and studs used in aerospace engines and other high-performance components.

• Continuous Forging and Extrusion
  The standard facilitates the production process of continuous forging or extrusion, enabling efficient manufacturing of fasteners with precise dimensional control and high mechanical strength.

• High-Temperature Environments
  Due to the alloy's excellent heat resistance, components produced from Ni-P101HT are suitable for environments with elevated temperatures, maintaining mechanical integrity and resistance to oxidation.

Related Standards

• EN 2344 – Aerospace series round bars of heat-resisting alloys for diameters from 10 mm to 180 mm.
• EN 2369 – Aerospace series wires of heat-resisting alloys within specific diameter ranges.
• EN 4258 – General organization and links between various aerospace metallic material standards.
• EN 4500-003 – Rules for drafting and presenting material standards specifically for heat resisting alloys.
• EN 4700-004 – Technical specifications for steel and heat resisting alloy wrought products, focusing on wires.
• EN 2600 – Designation rules for metallic semi-finished products.

Practical Value

Compliance with SIST EN 3220:2019 ensures aerospace manufacturers receive reliable and reproducible nickel alloy bars and wires specifically engineered for fasteners exposed to high thermal and mechanical stress environments. This standard supports quality assurance, traceability, and performance consistency fundamental to aerospace safety and efficiency. Its alignment with related EN standards facilitates integration into supply chains and manufacturing workflows, driving optimal material utilization and high-standard fastener production.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.PPPP49.030.01Vezni elementi na splošnoFasteners in general49.025.05Železove zlitine na splošnoFerrous alloys in generalICS:Ta slovenski standard je istoveten z:EN 3220:2019SIST EN 3220:2019en,fr,de01-junij-2019SIST EN 3220:2019SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3220
April
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u mm ≤ D ≤ u r mm Série aérospatiale æ Alliage résistant à chaud base le forgeage ou l 5extrusion en continu pour fixations æ
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Luftæ und Raumfahrt æ Hochwarmfeste Nickellegierung Stangen und Drähte zum kontinuierlichen Verformen oder Strangpressen für Verbindungselemente æ
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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:
Rue de la Science 23,
B-1040 Brussels
t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
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