GB1434948A - Steels - Google Patents

Steels

Info

Publication number
GB1434948A
GB1434948A GB4361473A GB4361473A GB1434948A GB 1434948 A GB1434948 A GB 1434948A GB 4361473 A GB4361473 A GB 4361473A GB 4361473 A GB4361473 A GB 4361473A GB 1434948 A GB1434948 A GB 1434948A
Authority
GB
United Kingdom
Prior art keywords
steel
quenched
sept
hours
water
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
GB4361473A
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Publication of GB1434948A publication Critical patent/GB1434948A/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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

1434948 High strength steel SUMITOMO METAL INDUSTRIES Ltd 17 Sept 1973 [19 Sept 1972] 43614/73 Heading C7A A steel having in the quenched and tempered condition a tensile strength of at least 100 Kg/ mm<SP>2</SP> and improved resistance to delayed failure of composition:- Cr 0 to 2% C 0À05 to 0À4% Mn 0À2 to 3À0% Si 0À05 to 1À5% Mo 0À5 to 5À0% and (0À5 to 5% Cu) and/or (0À5 to 8À0% Ni + 0À05 to 3% Al), balance iron provided that % Cu #0À55 (2À1 x Mo % + Cu%) and/or % Ni # 0À55 (1À6 x Mo % + Ni%). The steel may be heat treated at 900 to 1200‹C for 30 minutes to 3 hours, water or oil quenched and tempered at 450 to 650‹C for up to 20 hours and water or oil quenched and used for the manufacture of high tension bolts and pre-stressed concrete steel bars.
GB4361473A 1972-09-19 1973-09-17 Steels Expired GB1434948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9321672A JPS5312884B2 (en) 1972-09-19 1972-09-19

Publications (1)

Publication Number Publication Date
GB1434948A true GB1434948A (en) 1976-05-12

Family

ID=14076354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4361473A Expired GB1434948A (en) 1972-09-19 1973-09-17 Steels

Country Status (4)

Country Link
JP (1) JPS5312884B2 (en)
CA (1) CA1003667A (en)
DE (1) DE2346979B2 (en)
GB (1) GB1434948A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1746176A1 (en) * 2005-07-22 2007-01-24 Nippon Steel Corporation Steel with excellent delayed fracture resistance and tensile strength of 1600 MPa class or more, its shaped articles, and methods of production of the same
US7510614B2 (en) * 2005-07-22 2009-03-31 Nippon Steel Corporation High strength bolt excellent in delayed fracture resistance and method of production of same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5441982B2 (en) * 1973-03-26 1979-12-11
DE19610675C1 (en) * 1996-03-19 1997-02-13 Thyssen Stahl Ag Dual phase steel for cold rolled sheet or strip - contg. manganese@, aluminium@ and silicon

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1746176A1 (en) * 2005-07-22 2007-01-24 Nippon Steel Corporation Steel with excellent delayed fracture resistance and tensile strength of 1600 MPa class or more, its shaped articles, and methods of production of the same
US7510614B2 (en) * 2005-07-22 2009-03-31 Nippon Steel Corporation High strength bolt excellent in delayed fracture resistance and method of production of same
US7754029B2 (en) 2005-07-22 2010-07-13 Nippon Steel Corporation Steel with excellent delayed fracture resistance and tensile strength of 1801 MPa class or more, and its shaped article

Also Published As

Publication number Publication date
DE2346979B2 (en) 1975-10-30
CA1003667A (en) 1977-01-18
JPS5312884B2 (en) 1978-05-06
JPS4951111A (en) 1974-05-17
DE2346979A1 (en) 1974-04-04

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Legal Events

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