US1206902A - Tool-steel alloy. - Google Patents

Tool-steel alloy. Download PDF

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Publication number
US1206902A
US1206902A US5096015A US5096015A US1206902A US 1206902 A US1206902 A US 1206902A US 5096015 A US5096015 A US 5096015A US 5096015 A US5096015 A US 5096015A US 1206902 A US1206902 A US 1206902A
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US
United States
Prior art keywords
tool
steel
per cent
steel alloy
carbon
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
US5096015A
Inventor
Richard H Patch
Radclyffe Furness
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.)
MIDVALE STEEL Co
Original Assignee
MIDVALE 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 MIDVALE STEEL Co filed Critical MIDVALE STEEL Co
Priority to US5096015A priority Critical patent/US1206902A/en
Application granted granted Critical
Publication of US1206902A publication Critical patent/US1206902A/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
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel

Definitions

  • PENNSYLVANIA ASSIGNORS TO THE MIDVALE STEEL COMPANY, OF PHILADEL- PHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.
  • Our invention relates to the production of non-deforming tool steel particularly adapted for dies, taps, reamers, and cutting tools for lathes and planers.
  • the invention comprises an alloy of steel and chromium combined in certain proportions with carbon.
  • the alloy should contain about 1 to 1.50 per cent. of carbon, although, for special uses, this may be raised to 2 per cent. carbon.
  • the chromium should be kept within the range between 15 and 20 per cent.
  • chrome steel compositions is an immense increase in the life of the tool and the capacity to cut at substantially higher speeds.
  • a tool steel containing'between 15 and 20 per cent. of chromium and between 1 and 2 per cent. of carbon.

Description

UNITED STATES PATENT OFFICE.
RICHARD H. PATCH, OF PHILADELPHIA, AND RADCLYFFE FURNESS, OF JENKINTOWN,
PENNSYLVANIA, ASSIGNORS TO THE MIDVALE STEEL COMPANY, OF PHILADEL- PHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.
TOOL-STEEL ALLOY.
No Drawing.
To all whom it may concern:
Be it known that we, RICHARD H. PATCH and RADCLYFFE FURNEss, citizens of the United States, residing at, respectively, Philadelphia, county of Philadelphia, State of Pennsylvania, and Jenkintown, county of Montgomery, State of Pennsylvania, have invented a new and useful Improvement in Tool-Steel Alloys, of which the following is a full, clear, and exact description.
Our invention relates to the production of non-deforming tool steel particularly adapted for dies, taps, reamers, and cutting tools for lathes and planers.
The invention comprises an alloy of steel and chromium combined in certain proportions with carbon.
Following is a typical composition, and one which careful experiment has shown to give an excellent result: Carbon 1.35%, chromium'19.50%, iron 79.00%. The alloy should contain about 1 to 1.50 per cent. of carbon, although, for special uses, this may be raised to 2 per cent. carbon. The chromium should be kept within the range between 15 and 20 per cent.
In the manufacture of tool steel, it is not Specification of Letters Patent.
chromium about 19.5
Patented Dec. 5, 1916.
Application filed September 16, 1915. Serial No. 50,960.
chrome steel compositions is an immense increase in the life of the tool and the capacity to cut at substantially higher speeds.
Having now fully described our invention, what we claim and desire to protect by Letters Patent is:
1. A tool steel containing'between 15 and 20 per cent. of chromium and between 1 and 2 per cent. of carbon.
2. A tool steel containing the following ingredients in approximately the proportions specified: steel about 79 per cent; per cent. and carbon about 1.35 per cent.
In testimony of which invention, we have hereunto set our hands at Philadelphia, on this 14th day of September, 1915.
RICHARD H. PATCH. RADCLYFFE FURNESS. Witness:
JAMES J. RAHILLY.
US5096015A 1915-09-16 1915-09-16 Tool-steel alloy. Expired - Lifetime US1206902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US5096015A US1206902A (en) 1915-09-16 1915-09-16 Tool-steel alloy.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5096015A US1206902A (en) 1915-09-16 1915-09-16 Tool-steel alloy.

Publications (1)

Publication Number Publication Date
US1206902A true US1206902A (en) 1916-12-05

Family

ID=3274821

Family Applications (1)

Application Number Title Priority Date Filing Date
US5096015A Expired - Lifetime US1206902A (en) 1915-09-16 1915-09-16 Tool-steel alloy.

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US (1) US1206902A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927428B1 (en) * 1968-05-31 1971-03-11 Uddeholms Ab Use of a steel band made from a steel with sufficiently good carbide dissolving power for the production of saw blades
US5370750A (en) * 1993-11-08 1994-12-06 Crs Holdings, Inc. Corrosion resistant, martensitic steel alloy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1927428B1 (en) * 1968-05-31 1971-03-11 Uddeholms Ab Use of a steel band made from a steel with sufficiently good carbide dissolving power for the production of saw blades
US5370750A (en) * 1993-11-08 1994-12-06 Crs Holdings, Inc. Corrosion resistant, martensitic steel alloy

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