US3850621A - High-speed tool steels - Google Patents

High-speed tool steels Download PDF

Info

Publication number
US3850621A
US3850621A US00428312A US42831273A US3850621A US 3850621 A US3850621 A US 3850621A US 00428312 A US00428312 A US 00428312A US 42831273 A US42831273 A US 42831273A US 3850621 A US3850621 A US 3850621A
Authority
US
United States
Prior art keywords
percent
speed tool
steels
steel
content
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
US00428312A
Other languages
English (en)
Inventor
E Haberling
H Kiesheyer
H Weigand
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.)
Deutsche Edelstahlwerke GmbH
Original Assignee
Deutsche Edelstahlwerke GmbH
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 Deutsche Edelstahlwerke GmbH filed Critical Deutsche Edelstahlwerke GmbH
Application granted granted Critical
Publication of US3850621A publication Critical patent/US3850621A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten

Definitions

  • HIGH-SPEED TOOL STEELS This invention relates to high-speed steels having a high wear resistance combined with good machinability and ductility, and particularly relates to such steels wherein the silicon content is a function of the C/W/Mo/V content.
  • High-speed tool steels are characterized by high re- 5 I sistance to wear up to working temperatures of 600C.
  • the present invention is directed to solving the prob- 3 lem ofproducing high-speed tool steels which combine high wear resistance with good grindability and ductility.
  • the present invention is based on the surprising discovery that provided certain alloying relationships are observed, namely in correlating thesilicon content to Steel No.
  • the invention provides a high-speed tool steel possessing high wear resistance combined with good ductility and machin'ability, consisting essentially of balance iron,
  • silicon content is not less than 0.5 percent and is determined by the formula Si 2.7 (%C) 0.1 (%W) 0.14 (%Mo) 0.5 @0113? 9-
  • Si 2.7 (%C) 0.1 (%W) 0.14 (%Mo) 0.5 @0113? 9- By the term consisting essentially of in the Specification and claims hereof, is meant that impurities andabove the quantity as hereinbefore set forth leads to an undesirable carbide development and hence to an impairment of the properties of the steel. in such a case coarse primary carbides of the type M C and MC appear.
  • the content limits of the silicon that is to be introduced according to the present'specification are calcu-.
  • the contents of the alloying elements carbon.
  • tungsten, molybdenum and vanadium the carbide proportion in the structure can be increased without the formation of carbides which by reason of their configuration and hardness impair grindability and ductility.
  • This correlation between the said alloying components according to the invention permits a peritectoid carbide reaction to take place which leads to fine and evenly distributed carbides and hence improves grindability and ductility.
  • FIG. 1 shows that the steel containing 0.26 percent Si solidifies with the formation of the spiculate M C carbide and that this remains stable up to high degrees of deformation (FIGS. la c).
  • FIG. 2 shows that the Steel 1 having a silicon content according to the'above formula also solidifies via the M C eutectic but that its carbide is so unstable that this already decomposes as the ingot cools (FIG. 2a).
  • This peritectoid decomposition becomes complete in the course of the following hot working process.
  • Very fine and evenly distributed carbides of type M c and MC are formed, which impart to the Steel 1 a high resistance to wear coupled with good grindability and toughness.
  • FIG. 3 demonstrates that silicon contents exceeding that calculated by the equation according to the invention lead to solidification of Steel 1 via the M C eutectic, giving rise to the appearance of coarse primary MC carbides (FIG. 30). These coarse carbides cannot be fully broken down even by considerable deformation, and they lead to the development of an irregular coarse-grained structure which adversely affects the properties of the said Steel 1.
  • Silicon additions reduce the residual austenite which is present after the steels have been hardened. In order to mitigate this effect it is therefore advantageous to introduce into silicon-containing steels according to the invention nitrogen up to 0.] percent.
  • the present invention enables high-speed tool steels of optimum structure and hence of outstanding applicational properties, such as toughness, wear resistance and grindability to be produced.
  • improved wear resistance steels composed as proposed by the present invention surprisingly still prove to be readily grindable.
  • steels of the proposed composition could be ground substantially without any difficulty.
  • High-speed tool steels according to the invention are particularly suitable for the making of tools which call for a considerable amount of grinding to give them their final shape, particularly twist drills, taps, cutters, reamers and milling tools.
  • silicon content is not less than 0.5 percent and is determined by the formula Si 2.7 (%C) 0.1 (%W) 0.14 (%Mo) 0.5 (%V) 0.3.

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)
  • Powder Metallurgy (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
US00428312A 1972-12-27 1973-12-26 High-speed tool steels Expired - Lifetime US3850621A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2263576A DE2263576B2 (de) 1972-12-27 1972-12-27 Verfahren zur Erzeugung eines M2 C-freien Gefüges in Schnellarbeitsstahl

Publications (1)

Publication Number Publication Date
US3850621A true US3850621A (en) 1974-11-26

Family

ID=5865536

Family Applications (1)

Application Number Title Priority Date Filing Date
US00428312A Expired - Lifetime US3850621A (en) 1972-12-27 1973-12-26 High-speed tool steels

Country Status (5)

Country Link
US (1) US3850621A (enrdf_load_stackoverflow)
JP (1) JPS4997719A (enrdf_load_stackoverflow)
AT (1) AT348566B (enrdf_load_stackoverflow)
DE (1) DE2263576B2 (enrdf_load_stackoverflow)
FR (1) FR2212440B1 (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032302A (en) * 1974-12-23 1977-06-28 Hitachi Metals, Ltd. Carbide enriched high speed tool steel
US4116684A (en) * 1976-03-17 1978-09-26 Hitachi Metals, Ltd. High speed tool steel having high toughness
US4242130A (en) * 1977-12-27 1980-12-30 Thyssen Edelstahlwerke Ag High-speed steel
US4276085A (en) * 1976-11-22 1981-06-30 Uddeholms Aktiebolag High speed steel
US4780139A (en) * 1985-01-16 1988-10-25 Kloster Speedsteel Ab Tool steel
US5063116A (en) * 1990-03-16 1991-11-05 Hitachi Metals, Ltd. Wire for dot printer
US5674449A (en) * 1995-05-25 1997-10-07 Winsert, Inc. Iron base alloys for internal combustion engine valve seat inserts, and the like
US6057045A (en) * 1997-10-14 2000-05-02 Crucible Materials Corporation High-speed steel article
US6200394B1 (en) * 1997-05-08 2001-03-13 Research Institute Of Industrial Science & Technology High speed tool steel
US6200528B1 (en) 1997-09-17 2001-03-13 Latrobe Steel Company Cobalt free high speed steels
US6723182B1 (en) 2002-11-14 2004-04-20 Arthur J. Bahmiller Martensitic alloy steels having intermetallic compounds and precipitates as a substitute for cobalt
US20060283526A1 (en) * 2004-07-08 2006-12-21 Xuecheng Liang Wear resistant alloy for valve seat insert used in internal combustion engines
US20070160490A1 (en) * 2006-01-09 2007-07-12 Ati Properties, Inc. Tool and bearing steels
US20100011594A1 (en) * 2008-07-15 2010-01-21 Wysk Mark J Composite Saw Blades
US9334547B2 (en) 2013-09-19 2016-05-10 L.E. Jones Company Iron-based alloys and methods of making and use thereof
CN108315664A (zh) * 2018-04-26 2018-07-24 河冶科技股份有限公司 搓丝板材料及其制备方法
US12234536B2 (en) 2022-12-03 2025-02-25 Arthur Craig Reardon High speed steel composition

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52141406A (en) * 1976-05-21 1977-11-25 Kobe Steel Ltd Tool steel containing nitrogen made by powder metallurgy
SE400093B (sv) * 1976-07-09 1978-03-13 Fagersta Ab Laglegerat snabbstal
FR2601268B1 (fr) * 1986-07-11 1992-07-24 Chavanne Ketin Cylindre de travail composite en acier pour train a chaud.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2241187A (en) * 1937-12-27 1941-05-06 Allegheny Ludlum Steel Alloy steel
US3295966A (en) * 1964-04-30 1967-01-03 Crucible Steel Co America Versatile low-alloy tool steel
US3809541A (en) * 1972-10-24 1974-05-07 G Steven Vanadium-containing tool steel article

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR800098A (fr) * 1935-12-28 1936-06-26 Cleveland Twist Drill Co Alliages et produits obtenus à partir de ceux-ci
US2212227A (en) * 1939-07-08 1940-08-20 Allegheny Ludlum Steel High speed tool
US2212228A (en) * 1940-06-12 1940-08-20 Allegheny Ludlum Steel Alloy steel
SU210378A1 (ru) * 1966-03-09 1968-02-06 Л. А. Позн Ю. М. Скрынченко, В. Ф. Смол ков, Г. Габуев, В. П. Францов , А. И. Хнтрик Штамповая сталь
SU203918A1 (ru) * 1966-12-28 1967-10-09 Б. Л. Александрович, Ю. А. Геллер , Л. С. Кремнев Московский станкоинструментальный институт Быстрорежущая сталь

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2241187A (en) * 1937-12-27 1941-05-06 Allegheny Ludlum Steel Alloy steel
US3295966A (en) * 1964-04-30 1967-01-03 Crucible Steel Co America Versatile low-alloy tool steel
US3809541A (en) * 1972-10-24 1974-05-07 G Steven Vanadium-containing tool steel article

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032302A (en) * 1974-12-23 1977-06-28 Hitachi Metals, Ltd. Carbide enriched high speed tool steel
US4116684A (en) * 1976-03-17 1978-09-26 Hitachi Metals, Ltd. High speed tool steel having high toughness
US4276085A (en) * 1976-11-22 1981-06-30 Uddeholms Aktiebolag High speed steel
US4242130A (en) * 1977-12-27 1980-12-30 Thyssen Edelstahlwerke Ag High-speed steel
US4780139A (en) * 1985-01-16 1988-10-25 Kloster Speedsteel Ab Tool steel
US5063116A (en) * 1990-03-16 1991-11-05 Hitachi Metals, Ltd. Wire for dot printer
US5674449A (en) * 1995-05-25 1997-10-07 Winsert, Inc. Iron base alloys for internal combustion engine valve seat inserts, and the like
US6200394B1 (en) * 1997-05-08 2001-03-13 Research Institute Of Industrial Science & Technology High speed tool steel
US6200528B1 (en) 1997-09-17 2001-03-13 Latrobe Steel Company Cobalt free high speed steels
US6057045A (en) * 1997-10-14 2000-05-02 Crucible Materials Corporation High-speed steel article
US6723182B1 (en) 2002-11-14 2004-04-20 Arthur J. Bahmiller Martensitic alloy steels having intermetallic compounds and precipitates as a substitute for cobalt
US20060283526A1 (en) * 2004-07-08 2006-12-21 Xuecheng Liang Wear resistant alloy for valve seat insert used in internal combustion engines
US7611590B2 (en) 2004-07-08 2009-11-03 Alloy Technology Solutions, Inc. Wear resistant alloy for valve seat insert used in internal combustion engines
US20070160490A1 (en) * 2006-01-09 2007-07-12 Ati Properties, Inc. Tool and bearing steels
US7387692B2 (en) 2006-01-09 2008-06-17 Ati Properties, Inc. Tool and bearing steels
US20100011594A1 (en) * 2008-07-15 2010-01-21 Wysk Mark J Composite Saw Blades
US20140102276A1 (en) * 2008-07-15 2014-04-17 Irwin Industrial Tool Company Composite Saw Blades
US9334547B2 (en) 2013-09-19 2016-05-10 L.E. Jones Company Iron-based alloys and methods of making and use thereof
US9932867B2 (en) 2013-09-19 2018-04-03 L.E. Jones Company Iron-based alloys and methods of making and use thereof
CN108315664A (zh) * 2018-04-26 2018-07-24 河冶科技股份有限公司 搓丝板材料及其制备方法
US12234536B2 (en) 2022-12-03 2025-02-25 Arthur Craig Reardon High speed steel composition

Also Published As

Publication number Publication date
DE2263576A1 (de) 1974-07-11
DE2263576B2 (de) 1978-06-01
FR2212440B1 (enrdf_load_stackoverflow) 1977-06-10
ATA1077273A (de) 1976-10-15
JPS4997719A (enrdf_load_stackoverflow) 1974-09-17
FR2212440A1 (enrdf_load_stackoverflow) 1974-07-26
AT348566B (de) 1979-02-26

Similar Documents

Publication Publication Date Title
US3850621A (en) High-speed tool steels
US3600160A (en) Heat and temper resistant alloy steel
KR950005927B1 (ko) 내마모성 강철
US3330651A (en) Ferrous alloys
US3833360A (en) Super-high-speed steels of high cutting capacity
US2201425A (en) Alloy steel
US4242130A (en) High-speed steel
US3342058A (en) Roll for cold-rolling metallic sheet materials
JPH11350065A (ja) 旋削加工性に優れた熱間鍛造用非調質鋼
US3113862A (en) High speed steel
US2182759A (en) Steel
US1602995A (en) Nonferrous alloy
JP2595609B2 (ja) 浸炭焼入れ用快削鋼
US3330652A (en) High speed steel
CA1267002A (en) Low carbon plus nitrogen, free-machining austenitic stainless steel
JPH02175847A (ja) 粉末冷間工具鋼
US1998957A (en) Ferrous alloy
JP2805845B2 (ja) 浸炭焼入れ用快削鋼
JPH07116550B2 (ja) 低合金高速度工具鋼およびその製造方法
US3859081A (en) High speed steel compositions and articles
US2438221A (en) Method of making a hard facing alloy
JPH025813B2 (enrdf_load_stackoverflow)
JPS58117863A (ja) 高耐摩高靭性高速度工具鋼
JPH05171373A (ja) 粉末高速度工具鋼
US1233862A (en) A cobpobation ob