GB1187275A - Improvements in or relating to Steel Springs - Google Patents

Improvements in or relating to Steel Springs

Info

Publication number
GB1187275A
GB1187275A GB1528467A GB1528467A GB1187275A GB 1187275 A GB1187275 A GB 1187275A GB 1528467 A GB1528467 A GB 1528467A GB 1528467 A GB1528467 A GB 1528467A GB 1187275 A GB1187275 A GB 1187275A
Authority
GB
United Kingdom
Prior art keywords
springs
relating
steel springs
impurities
alloy steel
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
GB1528467A
Inventor
Geoffrey Basil Graves
Ronald Haynes
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB1528467A priority Critical patent/GB1187275A/en
Publication of GB1187275A publication Critical patent/GB1187275A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
    • C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
    • C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

1,187,275. Alloy steel springs. DEFENCE, SECRETARY OF. July 3, 1968 [April 4, 1967], No. 15284/67. Heading C7A. Springs made of an alloy steel consisting, by weight, of C 0À25-0À55% Mn 0À25-3% Si 1-2À5% Mo 0À5-3% Cu 1-3% V 0À1-1% Fe and impurities - balance, are carburized to increase their surface C content (preferably to not more than 0À8%), soaked above the AC 3 point, quenched and tempered (desirably at 500‹ - 650‹ C. ). Impurities preferably do not exceed 0À03% each of S and P, and 0À2% Ni. After tempering, the springs may be hot-set, or may be shotpeened and then heat treated at 200‹ -220‹ C.
GB1528467A 1967-04-04 1967-04-04 Improvements in or relating to Steel Springs Expired GB1187275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1528467A GB1187275A (en) 1967-04-04 1967-04-04 Improvements in or relating to Steel Springs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1528467A GB1187275A (en) 1967-04-04 1967-04-04 Improvements in or relating to Steel Springs

Publications (1)

Publication Number Publication Date
GB1187275A true GB1187275A (en) 1970-04-08

Family

ID=10056345

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1528467A Expired GB1187275A (en) 1967-04-04 1967-04-04 Improvements in or relating to Steel Springs

Country Status (1)

Country Link
GB (1) GB1187275A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4448617A (en) * 1980-08-05 1984-05-15 Aichi Steel Works, Ltd. Steel for a vehicle suspension spring having good sag-resistance
US4544406A (en) * 1981-08-11 1985-10-01 Aichi Steel Works, Ltd. Spring steel having a good sag-resistance and a good hardenability
US4711675A (en) * 1981-08-11 1987-12-08 Aichi Steel Works, Ltd. Process for improving the sag-resistance and hardenability of a spring steel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4448617A (en) * 1980-08-05 1984-05-15 Aichi Steel Works, Ltd. Steel for a vehicle suspension spring having good sag-resistance
US4544406A (en) * 1981-08-11 1985-10-01 Aichi Steel Works, Ltd. Spring steel having a good sag-resistance and a good hardenability
US4711675A (en) * 1981-08-11 1987-12-08 Aichi Steel Works, Ltd. Process for improving the sag-resistance and hardenability of a spring steel

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees