GB1492720A - Steel bolt with high limit of elasticity - Google Patents

Steel bolt with high limit of elasticity

Info

Publication number
GB1492720A
GB1492720A GB1908776A GB1908776A GB1492720A GB 1492720 A GB1492720 A GB 1492720A GB 1908776 A GB1908776 A GB 1908776A GB 1908776 A GB1908776 A GB 1908776A GB 1492720 A GB1492720 A GB 1492720A
Authority
GB
United Kingdom
Prior art keywords
bolt
zone
elasticity
steel bolt
high limit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1908776A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of GB1492720A publication Critical patent/GB1492720A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00Features common to bolt and nut

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

1492720 Bolts CENTRE DE RECHERCHES METALLURGIQUES 10 May 1976 [14 May 1975] 19087/76 Heading F2H [Also in Division B3] The structure of a steel bolt in transverse cross-section comprises at least two coaxial zones, namely a first zone forming the surface layer of the bolt and consisting of tempered martensite and/or tempered bainite, and a second zone forming the core of the bolt and comprising mainly ferrite-pearlite. The core may contain a minor proportion of carbides. The bolt may further comprise, between the first and second zone, an intermediate zone consisting of iron-tempered bainite. Steel compositions consisting of C, Mn and Si with and without Nb are specified.
GB1908776A 1975-05-14 1976-05-10 Steel bolt with high limit of elasticity Expired GB1492720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE829089 1975-05-14

Publications (1)

Publication Number Publication Date
GB1492720A true GB1492720A (en) 1977-11-23

Family

ID=3861203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1908776A Expired GB1492720A (en) 1975-05-14 1976-05-10 Steel bolt with high limit of elasticity

Country Status (4)

Country Link
FR (1) FR2311214A1 (en)
GB (1) GB1492720A (en)
LU (1) LU74934A1 (en)
NL (1) NL7605023A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171163A (en) * 1985-02-01 1986-08-20 Laurence North Fixings for security devices
GB2186290A (en) * 1986-02-11 1987-08-12 Avdel Ltd Pin of sorbitic tempered martensite
DE102008041391A1 (en) 2008-08-20 2010-01-14 Kamax-Werke Rudolf Kellermann Gmbh & Co. Kg High strength bolt has bainite structure produced by austempering which extends across whole cross-section of the bolt and increases its tensile strength
US9145910B2 (en) 2011-11-18 2015-09-29 Kamax Holding Gmbh & Co. Kg Ultra high strength screw having a high yield ratio

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195952A (en) * 1978-03-27 1980-04-01 Swanson Roger I Means for anchoring to rock
US4289006A (en) * 1979-01-08 1981-09-15 Illinois Tool Works Inc. Apparatus for producing threaded self-tapping stainless steel screws
US4295351A (en) * 1979-01-08 1981-10-20 Illinois Tool Works Inc. Self-tapping stainless steel screw and method for producing same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171163A (en) * 1985-02-01 1986-08-20 Laurence North Fixings for security devices
GB2171163B (en) * 1985-02-01 1989-06-07 Laurence North Fixings for security devices
GB2186290A (en) * 1986-02-11 1987-08-12 Avdel Ltd Pin of sorbitic tempered martensite
GB2186290B (en) * 1986-02-11 1989-11-22 Avdel Ltd Pin for a fastener, and method of making same
DE102008041391A1 (en) 2008-08-20 2010-01-14 Kamax-Werke Rudolf Kellermann Gmbh & Co. Kg High strength bolt has bainite structure produced by austempering which extends across whole cross-section of the bolt and increases its tensile strength
US9145910B2 (en) 2011-11-18 2015-09-29 Kamax Holding Gmbh & Co. Kg Ultra high strength screw having a high yield ratio

Also Published As

Publication number Publication date
FR2311214B3 (en) 1980-06-13
LU74934A1 (en) 1977-01-17
FR2311214A1 (en) 1976-12-10
NL7605023A (en) 1976-11-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee