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BS EN ISO 898-1:2013

Current
Current

The latest, up-to-date edition.

Mechanical properties of fasteners made of carbon steel and alloy steel Bolts, screws and studs with specified property classes. Coarse thread and fine pitch thread
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-31-2013

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Designation system for property classes
6 Materials
7 Mechanical and physical properties
8 Applicability of test methods
9 Test methods
10 Marking
Annex A (informative) - Relation between tensile strength and
        elongation after fracture
Annex B (informative) - Influence of elevated temperatures on
        mechanical properties of fasteners
Annex C (informative) - Elongation after fracture for full-size
        fasteners, A[f]
Bibliography

Describes mechanical and physical properties of bolts, screws and studs made of carbon steel and alloy steel when tested at an ambient temperature range of 10 degrees C to 35 degrees C.

This part of ISO898 specifies mechanical and physical properties of bolts, screws and studs made of carbon steel and alloy steel when tested at an ambient temperature range of 10°C to 35°C. Fasteners (the term used when bolts, screws and studs are considered all together) that conform to the requirements of this part of ISO898 are evaluated at that ambient temperature range. They might not retain the specified mechanical and physical properties at elevated temperatures (see AnnexB) and/or lower temperatures.

NOTE1 Fasteners conforming to the requirements of this part of ISO898 are used in applications ranging from−50°C to+150°C. Users are advised to consult an experienced fastener metallurgist for temperatures outside the range of−50°C to+150°C and up to a maximum temperature of+300°C when determining appropriate choices for a given application.

NOTE2 Information for the selection and application of steels for use at lower and elevated temperatures is given, for example, in EN10269, ASTM F2281 and in ASTM A320/A320M.

Certain bolts and screws might not fulfil the tensile or torsional requirements of this part of ISO898 because the geometry of their heads reduces the shear area in the head compared to the stress area in the thread. These include bolts and screws having a low or countersunk head (see 8.2).

This part of ISO898 is applicable to bolts, screws and studs

  • made of carbon steel or alloy steel,

  • having triangular ISO metric screw thread in accordance with ISO68-1,

  • with coarse pitch thread M1,6 to M39, and fine pitch thread M8×1 to M39×3,

  • with diameter/pitch combinations in accordance with ISO261 and ISO262, and

  • having thread tolerances in accordance with ISO965-1, ISO965-2 and ISO965-4.

It is not applicable to set screws and similar threaded fasteners not under tensile stress (see ISO898-5).

It does not specify requirements for such properties as

  • weldability,

  • corrosion resistance,

  • resistance to shear stress,

  • torque/clamp force performance (for test method, see ISO16047), or

  • fatigue resistance.

Committee
FME/9
DevelopmentNote
Supersedes BS EN 20898-1 and 96/715367 DC. (06/2005) Supersedes 06/30151815 DC. (04/2009)
DocumentType
Standard
Pages
66
PublisherName
British Standards Institution
Status
Current
Supersedes

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EN 10269:2013 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
ISO 898-7:1992 Mechanical properties of fasteners Part 7: Torsional test and minimum torques for bolts and screws with nominal diameters 1 mm to 10 mm
ISO 10683:2014 Fasteners Non-electrolytically applied zinc flake coatings
ISO 6506-1:2014 Metallic materials Brinell hardness test Part 1: Test method
ISO 10684:2004 Fasteners — Hot dip galvanized coatings
ISO 4042:1999 Fasteners Electroplated coatings
ISO 6157-3:1988 Fasteners Surface discontinuities Part 3: Bolts, screws and studs for special requirements
ISO 6157-1:1988 Fasteners — Surface discontinuities — Part 1: Bolts, screws and studs for general requirements
ISO 6508-1:2016 Metallic materials — Rockwell hardness test — Part 1: Test method
ISO 724:1993 ISO general-purpose metric screw threads — Basic dimensions
ISO 16426:2002 Fasteners — Quality assurance system
ISO 6892-1:2016 Metallic materials Tensile testing Part 1: Method of test at room temperature
ISO 965-2:1998 ISO general purpose metric screw threads — Tolerances — Part 2: Limits of sizes for general purpose external and internal screw threads — Medium quality
ISO 225:2010 Fasteners Bolts, screws, studs and nuts Symbols and descriptions of dimensions
ISO 898-5:2012 Mechanical properties of fasteners made of carbon steel and alloy steel Part 5: Set screws and similar threaded fasteners with specified hardness classes Coarse thread and fine pitch thread
ISO 148-1:2016 Metallic materials — Charpy pendulum impact test — Part 1: Test method
ISO 262:1998 ISO general purpose metric screw threads — Selected sizes for screws, bolts and nuts
ISO 965-4:1998 ISO general purpose metric screw threads Tolerances Part 4: Limits of sizes for hot-dip galvanized external screw threads to mate with internal screw threads tapped with tolerance position H or G after galvanizing
ISO 68-1:1998 ISO general purpose screw threads — Basic profile — Part 1: Metric screw threads
ISO 273:1979 Fasteners — Clearance holes for bolts and screws
ISO 261:1998 ISO general purpose metric screw threads General plan
ISO 965-1:2013 ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data
ISO 7500-1:2015 Metallic materials Calibration and verification of static uniaxial testing machines Part 1: Tension/compression testing machines Calibration and verification of the force-measuring system
ISO 1891:2009 Fasteners — Terminology

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