BS EN 03323:2009 pdf free download – Aerospace series – Bolts with double hexagon head, relieved shank long thread,- In heat resisting steel FE-PM 38 (FV 535)- Classification: 1 000 MPa/550 °C.
This document (EN 3323:2009) has been prepared by the Aerospace and Defence Industries Assocsation of Europe – Standardization (ASD-STAN).
After enqLiries and votes camed 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of an identical text or by endorsement, at (tie latest by August 2009, and conflicting national standards shall be withdrawn at the latest by August 2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights, CEN lanWor CENELECJ shall not be held responsible for identifying any or all such patent rights.
Accorng to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belum, Bulgaria, Cyprus. Czech Republic, Denmark, Estonia, Finland, France. Germany. Greece. Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg. Malta, Netherlands. Norway, Poland, Portugal. Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kiigdom.
Thes standard specifies the characteristics of double hexagon head boils with relieved shank and long thread in heat resisting steel FM-PM 38, tensde strength class 1 000 MPa at room temperature. The maximum test temperature of the material is 550 C.
These bolts are to be used in aerospace fastening systems, ol parts made ii titanium, mainly stressed in tension.
2 Normative references
EN 2424 Aerospace senes — Marking of aerospace products1
EN 2493 Aerospace series — Heat resisting steel FE-PM 38 — 1 000 MPa S R,,, s 1140 MPa — Bars2
EN 3302 Aerospace senes – Bolts in heat resisting steel FE-PM 1708 (FV535) – Classilkabon: 1 000 MPaJ550 °C. Technical specification1
ISO 3353-1 Aerospace — Lead and runout threads — Part 1: Rolled external threads
Iso 4095 Aerospace — Bihexagonal drives — Wrenclimg configuration — Metric series
ISO 5855-1 Aerospace — MJ Threads — Part 1: General requirements
ISO 5855-2 Aerospace — MJ Threads — Part 2: Limit dimensions fOr bolts and nuts
3 Required characteristics
3.1 Configuration – Dimensions – Tolerances
The configuration shall be in accordance with the figure. Dimensions and tolerances shall conform to the values shown in the figure and in Tables 1 and 2.
3.2 Surface roughness
See the figure.
3.3 Material
Heat resisting steel FM-PM 38 to EN 2493.
3.4 Surface treatment
None.