GB1492720A - Steel bolt with high limit of elasticity - Google Patents
Steel bolt with high limit of elasticityInfo
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 3
- 239000010959 steel Substances 0.000 title abstract 3
- 229910001563 bainite Inorganic materials 0.000 abstract 2
- 229910000734 martensite Inorganic materials 0.000 abstract 1
- 150000001247 metal acetylides Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910001562 pearlite Inorganic materials 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features 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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4195952A (en) * | 1978-03-27 | 1980-04-01 | Swanson Roger I | Means for anchoring to rock |
US4295351A (en) * | 1979-01-08 | 1981-10-20 | Illinois Tool Works Inc. | Self-tapping stainless steel screw and method for producing same |
US4289006A (en) * | 1979-01-08 | 1981-09-15 | Illinois Tool Works Inc. | Apparatus for producing threaded self-tapping stainless steel screws |
-
1976
- 1976-05-07 FR FR7614522A patent/FR2311214A1/en active Granted
- 1976-05-10 GB GB1908776A patent/GB1492720A/en not_active Expired
- 1976-05-11 NL NL7605023A patent/NL7605023A/en not_active Application Discontinuation
- 1976-05-12 LU LU74934A patent/LU74934A1/xx unknown
Cited By (6)
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 |
---|---|
FR2311214A1 (en) | 1976-12-10 |
NL7605023A (en) | 1976-11-16 |
LU74934A1 (en) | 1977-01-17 |
FR2311214B3 (en) | 1980-06-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |