GB519572A - Steel - Google Patents

Steel

Info

Publication number
GB519572A
GB519572A GB19010/38A GB1901038A GB519572A GB 519572 A GB519572 A GB 519572A GB 19010/38 A GB19010/38 A GB 19010/38A GB 1901038 A GB1901038 A GB 1901038A GB 519572 A GB519572 A GB 519572A
Authority
GB
United Kingdom
Prior art keywords
lead
steel
per cent
alloy
mould
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
GB19010/38A
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.)
Inland Steel Co
Original Assignee
Inland Steel 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 Inland Steel Co filed Critical Inland Steel Co
Publication of GB519572A publication Critical patent/GB519572A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

519,572. Alloys. INLAND STEEL CO. June 27, 1938, Nos. 19010 and 19011. Convention dates, Nov. 30, 1937, and May 14, 1938. Drawings to Specification. [Class 82 (i)] Iron and iron alloys containing not more than 1À7 per cent. of carbon contain also 0À03- 0À478 per cent. of lead in a state of dispersion throughout the metal, the products being stated to have improved machinability. There may also be present up to 0À5 per cent. of sulphur, and one or more of the following elements : manganese, silicon, nitrogen, phosphorus, nickel, copper, chromium, molybdenum, vanadium, tungsten, zirconium, titanium, tantalum, aluminium, and niobium ; or the alloy may be a stainless steel. The lead may be added as metallic lead, litharge, galena, lead sulphide, orthophosphate, or other lead compound, a lead-tin-antimony alloy, a lead-tin alloy, or a copper-lead-tin alloy. Preferably the lead is added to the molten steel in the ingot mould in sub-divided form after a small amount of steel is in the mould, a stream of lead particles being delivered against the stream of steel entering the mould. The Specification as open to inspection under Sect. 91 includes also the subject-matter of Specification 519,615. This subject-matter does not appear in the Specification as accepted.
GB19010/38A 1937-11-30 1938-06-27 Steel Expired GB519572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US519572XA 1937-11-30 1937-11-30

Publications (1)

Publication Number Publication Date
GB519572A true GB519572A (en) 1940-04-01

Family

ID=21974455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19010/38A Expired GB519572A (en) 1937-11-30 1938-06-27 Steel

Country Status (1)

Country Link
GB (1) GB519572A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814405A (en) * 1970-02-03 1974-06-04 J Ormaechea Steel making apparatus
EP0027165A1 (en) * 1979-08-29 1981-04-22 Inland Steel Company Free machining steel with bismuth

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814405A (en) * 1970-02-03 1974-06-04 J Ormaechea Steel making apparatus
EP0027165A1 (en) * 1979-08-29 1981-04-22 Inland Steel Company Free machining steel with bismuth

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