US3362812A - Alloy steel and method - Google Patents

Alloy steel and method Download PDF

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Publication number
US3362812A
US3362812A US469577A US46957765A US3362812A US 3362812 A US3362812 A US 3362812A US 469577 A US469577 A US 469577A US 46957765 A US46957765 A US 46957765A US 3362812 A US3362812 A US 3362812A
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United States
Prior art keywords
vanadium
chromium
alloy
manganese
steel
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Expired - Lifetime
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US469577A
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English (en)
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Jr William R Barber
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Esco Corp
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Esco Corp
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Publication date
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Priority to US469577A priority Critical patent/US3362812A/en
Priority to BE707194D priority patent/BE707194A/xx
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    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/25—Lathe
    • Y10T82/2568—Center

Definitions

  • austenitic manganese steel carbon about 1%, manganese can he Observed in the grain boundaries Or in the ma x l0-l4%) which, although soft in the heated treated conof the Steel- However, even When little as 25% dition, becomes surface-hardened through cold working.
  • Example it was intended to have 1.50% vanadium (based upon the amount of vanadium added to the melt) with run 1 in- Casting l for a X Cedar Rapids efllshcluding additionally 1.50% chromium.
  • run 1 in- Casting l for a X Cedar Rapids efllshcluding additionally 1.50% chromium.
  • Chromium 1:50 Likewise, in runs 2, 4, 6, 8 and 10, it was intended to Silicon -38 have no chromium. The analyses subsequent to casting Manganese 12.85 are those reported. Further, in the various runs, the Vanadium 0-98 amount of vanadium was decreased, i.e., for runs 1 and Carbon 2 a target of 1.50%, for runs 3 and 4 a target of 1.25%, Iron (usual impurities) Remaihdeffor runs 5 and 6 a target of 1.00%, for runs 7 and 8 a The casting procedure included adding the vanadium in target of 050%, and for runs 9 and 10 a target of 025% the form of Carvan, a high carbon ferrovanadium marketed by Union Carbide. After casting, the jaws were vanadium. Runs E and 12 correspond to the formulations used in the 18,000 lb. and 6000 lb. life jaws, respectively.
  • the vanadium target is set dependent upon the combination of physical characteristics sought, it being appreciated that the remainder is iron with the usual impurities associated therewith. In this connection, I prefer to maintain sulfur and phosphorus each below a maximum of 0.04%.
  • vanadium Relative to the amount of vanadium employed, I find useful percentages in the range of 0.600.80% where the casting is relatively unsupported as in the case of a crusher bowl liner. However, where ductility can be sacrificed in favor of increased wear life, as in a supported crusher jaw, the vanadium is set at the high end of the optimum range and may advantageously go to 1.25% for certain crusher jaws.
  • Vanadium added in the amounts from .251.25% to an 11-14% austenitic manganese steel, with approximately 1.50% chromium, will give increased hardness to the alloy when the alloy is quenched in water in the normal manner for manganese alloys from a temperature greater than 1700 F.
  • vanadium added to the base analysis of the chromium-bearing austenitic manganese steel is about .60-.80% since this providees the best combination of mechanical properties. However, if ductility can be sacrified for potential increased wear, then the vanadium may be increased to a value as high as 1.25
  • An austenitic manganese steel useful in abrasive applications consisting essentially of from about 1.0% to about 2.0% chromium, from about 0.15% to about 0.70% silicon, from about 10.5% to about 14.5% manganese, from about 0.25% to about 1.5% vanadium, from about 0.90% to about 1.40% carbon with the balance iron including the usual impurities associated therewith, with a maximum of about 0.04% each of phosphorus and sulphur.
  • An austenitic manganese steel useful in abrasive applications consisting essentially of from about 1.3% to about 1.6% chromium, from about 0.040% to about 0.60% silicon, from about 11.5% to about 13.5% manganese, from about 0.60% to about 1.50% vanadium, from about 1.20% to about 1.35% carbon with the balance iron including the usual impurities associated therewith, with a maximum of about 0.04% each of phosphorus with sulphur.
  • a method of preparing an abrasion resistant alloy steel comprising casting a mixture of from about 1.3% to about 1.6% chromium, from 0.40% to about 0.60% silicon, from about 11.5% to about 13.5% manganese, from about 1.20% to about 1.35% carbon and an amount of vanadium in the range of about 0.60% to about 1.05% along with iron and water quenching the casting from above about 1700" F., the amount of vanadium employed being in the lower end of the above-mentioned range when the casting is employed in an environment where self-support is needed and being in the higher end of the range where the casting is substantially supported in operation.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crushing And Grinding (AREA)
US469577A 1965-07-06 1965-07-06 Alloy steel and method Expired - Lifetime US3362812A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US469577A US3362812A (en) 1965-07-06 1965-07-06 Alloy steel and method
BE707194D BE707194A (enrdf_load_stackoverflow) 1965-07-06 1967-11-28

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Application Number Priority Date Filing Date Title
US469577A US3362812A (en) 1965-07-06 1965-07-06 Alloy steel and method

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US3362812A true US3362812A (en) 1968-01-09

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US (1) US3362812A (enrdf_load_stackoverflow)
BE (1) BE707194A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50108118A (enrdf_load_stackoverflow) * 1974-02-05 1975-08-26

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US436497A (en) * 1890-09-16 Robert iiadfield
US1310528A (en) * 1919-07-22 Robert abbott hadfield
US1435294A (en) * 1916-07-15 1922-11-14 Hadfield Robert Abbott Manufacture of steel
US2382651A (en) * 1941-10-23 1945-08-14 Bell Telephone Labor Inc Magnetic materials
US2865740A (en) * 1954-06-23 1958-12-23 United States Steel Corp Precipitation-hardening nonmagneticferrous alloys

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US436497A (en) * 1890-09-16 Robert iiadfield
US1310528A (en) * 1919-07-22 Robert abbott hadfield
US1435294A (en) * 1916-07-15 1922-11-14 Hadfield Robert Abbott Manufacture of steel
US2382651A (en) * 1941-10-23 1945-08-14 Bell Telephone Labor Inc Magnetic materials
US2865740A (en) * 1954-06-23 1958-12-23 United States Steel Corp Precipitation-hardening nonmagneticferrous alloys

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50108118A (enrdf_load_stackoverflow) * 1974-02-05 1975-08-26

Also Published As

Publication number Publication date
BE707194A (enrdf_load_stackoverflow) 1968-04-01

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