US2230687A - Manufacture of high speed steels - Google Patents

Manufacture of high speed steels Download PDF

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Publication number
US2230687A
US2230687A US322009A US32200940A US2230687A US 2230687 A US2230687 A US 2230687A US 322009 A US322009 A US 322009A US 32200940 A US32200940 A US 32200940A US 2230687 A US2230687 A US 2230687A
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US
United States
Prior art keywords
high speed
manufacture
speed steels
steels
vanadium
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 - Lifetime
Application number
US322009A
Inventor
Houdremont Eduard
Schrader Hans
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.)
PANTENA Ltd
Original Assignee
PANTENA 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
Priority claimed from US192288A external-priority patent/US2209622A/en
Application filed by PANTENA Ltd filed Critical PANTENA Ltd
Priority to US322009A priority Critical patent/US2230687A/en
Application granted granted Critical
Publication of US2230687A publication Critical patent/US2230687A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
    • 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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt

Definitions

  • chromium more than 1.0% and less than 5.0% molybdenum, from 2.0 to 6.0% vanadium and up to 5% cobalt, the remainder substantially all being iron with the normal impurities.
  • Steels of a composition as specified hereinbefore although they contain only small percentages of alloying constituents are distinguished by a high efliciency in the chip-removing working of materials and can be equal in this respect even to the known high alloy high speed tungsten steels or, under favorable cutting conditions, even be superior to them.
  • the ratio of efilciency to degree of alloying is most favorable with steels according to the invention, which besides iron with the normal impurities contain from 1.2 to 1.5% carbon, from 3.0 to 5.0% chromium, at least 3.0% and less 5.0 molybdenum, from 4.0 to 6.0% vanadium and up to 5% cobalt.
  • a high speed steel consisting of 1.0 to 1.6% carbon, 1.0 to 6.0% chromium, more than 1.0% and less than 5.0% molybdenum, 2.0 to 6.0% vanadium and from 0.2 to 5% cobalt, remainder substantially all iron with the normal impurities.
  • a high speed steel consisting of 1.2 to 1.5% carbon, 3.0 to 5.0% chromium, at least 3.0% and less than 5% molybdenum, 4.0 to 6.0% vanadium and from 0.2 to 5% cobalt, remainder substantially all iron with the normal impurities.

Description

Patented Feb. ,4, 1941 UNITED STATES PATENT oFFlcE MANUFACTURE OF HIGH SPEED STEELS Eduard Houdremont and Hans Schrader, Essen, Germany, assignors, by mesne assignments, to Pantena Limited, Glarus, Switzerland, a corporation of Switzerland 2 Claims.
contain from 1.0 to 1.6% carbon, from 1.0 to 6.0%
chromium, more than 1.0% and less than 5.0% molybdenum, from 2.0 to 6.0% vanadium and up to 5% cobalt, the remainder substantially all being iron with the normal impurities.
Steels of a composition as specified hereinbefore although they contain only small percentages of alloying constituents are distinguished by a high efliciency in the chip-removing working of materials and can be equal in this respect even to the known high alloy high speed tungsten steels or, under favorable cutting conditions, even be superior to them.
The ratio of efilciency to degree of alloying is most favorable with steels according to the invention, which besides iron with the normal impurities contain from 1.2 to 1.5% carbon, from 3.0 to 5.0% chromium, at least 3.0% and less 5.0 molybdenum, from 4.0 to 6.0% vanadium and up to 5% cobalt. V
What we claim and desire to secure by Letters Patent is:
-1. A high speed steel consisting of 1.0 to 1.6% carbon, 1.0 to 6.0% chromium, more than 1.0% and less than 5.0% molybdenum, 2.0 to 6.0% vanadium and from 0.2 to 5% cobalt, remainder substantially all iron with the normal impurities.
2. A high speed steel consisting of 1.2 to 1.5% carbon, 3.0 to 5.0% chromium, at least 3.0% and less than 5% molybdenum, 4.0 to 6.0% vanadium and from 0.2 to 5% cobalt, remainder substantially all iron with the normal impurities.
EDUARD HOUDREMONT. HANS
US322009A 1938-02-24 1940-03-02 Manufacture of high speed steels Expired - Lifetime US2230687A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US322009A US2230687A (en) 1938-02-24 1940-03-02 Manufacture of high speed steels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US192288A US2209622A (en) 1937-03-31 1938-02-24 High speed steel
US322009A US2230687A (en) 1938-02-24 1940-03-02 Manufacture of high speed steels

Publications (1)

Publication Number Publication Date
US2230687A true US2230687A (en) 1941-02-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
US322009A Expired - Lifetime US2230687A (en) 1938-02-24 1940-03-02 Manufacture of high speed steels

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US (1) US2230687A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306735A (en) * 1963-08-28 1967-02-28 Hitachi Ltd Hardenable forged-steel roll material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3306735A (en) * 1963-08-28 1967-02-28 Hitachi Ltd Hardenable forged-steel roll material

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