GB1436565A - Hardening of chromised steel - Google Patents

Hardening of chromised steel

Info

Publication number
GB1436565A
GB1436565A GB5060873A GB5060873A GB1436565A GB 1436565 A GB1436565 A GB 1436565A GB 5060873 A GB5060873 A GB 5060873A GB 5060873 A GB5060873 A GB 5060873A GB 1436565 A GB1436565 A GB 1436565A
Authority
GB
United Kingdom
Prior art keywords
treatment
heat
steel
oct
chromized 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
GB5060873A
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.)
CHROME ALLOYING CO
Original Assignee
CHROME ALLOYING CO
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 CHROME ALLOYING CO filed Critical CHROME ALLOYING CO
Priority to GB5060873A priority Critical patent/GB1436565A/en
Priority to DE19742451182 priority patent/DE2451182C3/en
Publication of GB1436565A publication Critical patent/GB1436565A/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C21D1/20—Isothermal quenching, e.g. bainitic hardening
    • 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
    • F16B33/06—Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure or fretting

Landscapes

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

Abstract

1436565 Heat-treatment of chromized steel CHROME ALLOYING CO Ltd 15 Oct 1974 [31 Oct 1973] 50608/73 Heading C7A The tensile properties of a stabilized and chromized steel containing Fe Bal, and impurities, with up to 1À5% each of Si and Mn and optionally 0À5-1À5% Ni are significantly improved by heat-treating at 400-550 C for times of 12 hours to 30 minutes, depending on the temperature. The chromized steel must be in the solution treated condition, and a solution treatment in the range 800-1050 C is used subsequent to chromizing, which may be by pack diffusion, prior to the ageing treatment. The resultant material is suitable for fasteners i.e. nuts, bolts, &c. and the heat-treatment may be carried out either on stock or finished material.
GB5060873A 1973-10-31 1973-10-31 Hardening of chromised steel Expired GB1436565A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5060873A GB1436565A (en) 1973-10-31 1973-10-31 Hardening of chromised steel
DE19742451182 DE2451182C3 (en) 1973-10-31 1974-10-28 Process for the heat treatment of chromed steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5060873A GB1436565A (en) 1973-10-31 1973-10-31 Hardening of chromised steel

Publications (1)

Publication Number Publication Date
GB1436565A true GB1436565A (en) 1976-05-19

Family

ID=10456603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5060873A Expired GB1436565A (en) 1973-10-31 1973-10-31 Hardening of chromised steel

Country Status (2)

Country Link
DE (1) DE2451182C3 (en)
GB (1) GB1436565A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114381650A (en) * 2022-01-17 2022-04-22 金华市强宏板式家具机械有限公司 Stainless steel threaded nail and preparation method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10442263B2 (en) * 2017-04-03 2019-10-15 Robby Gordon Low suspension arm strut coupling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114381650A (en) * 2022-01-17 2022-04-22 金华市强宏板式家具机械有限公司 Stainless steel threaded nail and preparation method thereof

Also Published As

Publication number Publication date
DE2451182C3 (en) 1979-09-20
DE2451182B2 (en) 1979-01-25
DE2451182A1 (en) 1975-05-07

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Legal Events

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