CN109371323A - A kind of novel 51CrV4 special type steel alloy and its preparation process - Google Patents

A kind of novel 51CrV4 special type steel alloy and its preparation process Download PDF

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Publication number
CN109371323A
CN109371323A CN201811380636.8A CN201811380636A CN109371323A CN 109371323 A CN109371323 A CN 109371323A CN 201811380636 A CN201811380636 A CN 201811380636A CN 109371323 A CN109371323 A CN 109371323A
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CN
China
Prior art keywords
steel alloy
51crv4
novel
special type
preparation process
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Pending
Application number
CN201811380636.8A
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Chinese (zh)
Inventor
罗先权
覃官永
卢光洲
杨志强
沈建荣
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Zhejiang Rongxing Band Steel Co Ltd
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Zhejiang Rongxing Band Steel Co Ltd
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Priority to CN201811380636.8A priority Critical patent/CN109371323A/en
Publication of CN109371323A publication Critical patent/CN109371323A/en
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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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005—Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
    • 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
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

The invention discloses a kind of novel 51CrV4 special type steel alloy and its preparation processes, including being prepared by the chemical component of following weight percent: carbon 0.47~0.55%, silicon 0.15~0.4%, manganese 0.7~1.1%, phosphorus 0.001~0.025%, sulphur 0.001~0.025%, chromium 0.9~1.2%, molybdenum 0.001~0.40%, vanadium 0.10~0.25%, copper 0.001~0.40% and surplus are iron.The present invention in the ferrous alloy using iron as base by adding the metallic elements such as chromium, molybdenum, vanadium and copper, improve the overall structural strength of extraordinary steel alloy, by whole carbon containing raising, though losing the plasticity and impact of a part, but its tensile strength greatly improves, and in order to improve market competition, reduces cost, titanium is not added while improving carbon content, so that the overall structural strength of steel alloy is still relatively strong；By the way that amount of copper is added in component, steel alloy atmospheric corrosion resistance ability, and so more save the cost are improved, is also added as intensified element, plays the role of precipitation-hardening, allomeric function is perfect, practical.

Description

A kind of novel 51CrV4 special type steel alloy and its preparation process
Technical field
The present invention relates to steel manufacturing technology fields, more specifically, it relates to a kind of novel 51CrV4 special type steel alloy And its preparation process.
Background technique
Steel alloy, steel alloy are also special steel.One or more of alloying elements are appropriately added in carbon steel, make steel Institutional framework changes, so that steel be made to have a variety of different properties.
With the constant growth of productivity, the use demand of industrial special type steel alloy is continuously improved, existing special steel Alloy has been unable to satisfy the use demand in market gradually, and intensity is not high, and whole using effect is bad.Accordingly, the present invention proposes A kind of novel 51CrV4 special type steel alloy and its preparation process.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art described above, a kind of novel 51CrV4 special type steel alloy is provided And its preparation process.
In order to solve the above technical problems, the object of the present invention is achieved like this: one kind according to the present invention is novel 51CrV4 special type steel alloy and its preparation process, including being prepared by the chemical component of following weight percent:
Carbon 0.47~0.55%, silicon 0.15~0.4%, manganese 0.7~1.1%, phosphorus 0.001~0.025%, sulphur 0.001~ 0.025%, chromium 0.9~1.2%, molybdenum 0.001~0.40%, vanadium 0.10~0.25%, copper 0.001~0.40% and surplus are Iron.
The present invention is further arranged to: being included the following steps:
S1, carbon 0.47~0.55%, silicon 0.15~0.4%, manganese 0.7~1.1%, phosphorus 0.001~0.025%, sulphur are weighed 0.001~0.025%, chromium 0.9~1.2%, molybdenum 0.001~0.40%, vanadium 0.10~0.25%, 0.001~0.40% and of copper Surplus is iron；
S2, continuous casting operation will be carried out on the placement conticaster of steel alloy blank obtained in step S1, obtains alloy steel profile；
S3, by the resulting alloy steel profile of step S1 after heat treatment, be heat-fed in roll mill, carry out hot rolling and fine Hot-rolled manipulation obtains special steel alloy finished product；
S4, it after the resulting extraordinary steel alloy of step S3 is passed through annealing, is cooled to room temperature, by examining, packing Storage.
The present invention is further arranged to: 1400~1600 DEG C of smelting temperature in the step S1, and smelting time is 1~3h, Smelting furnace operating pressure is 0.05~0.12MPa.
The present invention is further arranged to: casting temperature is 500~700 DEG C in the step S2.
The present invention is further arranged to: hot-rolled temperature is 400 DEG C~700 DEG C in the step S3, and the time is 1~3h, essence Thin hot-rolled temperature is 400 DEG C~600 DEG C, and the time is 1~2h.
The present invention is further arranged to: the step S4 annealing temperature is 400~500 DEG C, and then air is cooled to Room temperature, annealing time 1h.
In conclusion the invention has the following advantages: novel 51CrV4 special type steel alloy according to the present invention and Its preparation process improves special steel by adding the metallic elements such as chromium, molybdenum, vanadium and copper in the ferrous alloy using iron as base The overall structural strength of alloy, by whole carbon containing raising, though the plasticity and impact of loss a part, its tensile strength are big It is big to improve, and in order to improve market competition, cost is reduced, titanium is not added while improving carbon content, so that steel alloy Overall structural strength is still relatively strong；By the way that amount of copper is added in component, steel alloy atmospheric corrosion resistance ability is improved, and so more Save the cost is also added as intensified element, plays the role of precipitation-hardening, allomeric function is perfect, practical.
Specific embodiment
Below with reference to preferred embodiment, the present invention is further described.
A kind of novel 51CrV4 special type steel alloy and its preparation process involved in the present embodiment, including by following weight hundred The chemical component of ratio is divided to be prepared:
Carbon 0.47~0.55%, silicon 0.15~0.4%, manganese 0.7~1.1%, phosphorus 0.001~0.025%, sulphur 0.001~ 0.025%, chromium 0.9~1.2%, molybdenum 0.001~0.40%, vanadium 0.10~0.25%, copper 0.001~0.40% and surplus are Iron.
A kind of novel 51CrV4 special type steel alloy and its preparation process, include the following steps:
S1, carbon 0.47~0.55%, silicon 0.15~0.4%, manganese 0.7~1.1%, phosphorus 0.001~0.025%, sulphur are weighed 0.001~0.025%, chromium 0.9~1.2%, molybdenum 0.001~0.40%, vanadium 0.10~0.25%, 0.001~0.40% and of copper Surplus is iron；
S2, continuous casting operation will be carried out on the placement conticaster of steel alloy blank obtained in step S1, obtains alloy steel profile；
S3, by the resulting alloy steel profile of step S1 after heat treatment, be heat-fed in roll mill, carry out hot rolling and fine Hot-rolled manipulation obtains special steel alloy finished product；
S4, it after the resulting extraordinary steel alloy of step S3 is passed through annealing, is cooled to room temperature, by examining, packing Storage.
Further, 1400~1600 DEG C of smelting temperature in the step S1, smelting time is 1~3h, smelting furnace work Pressure is 0.05~0.12MPa.
Further, casting temperature is 500~700 DEG C in the step S2.
Further, hot-rolled temperature is 400 DEG C~700 DEG C in the step S3, and the time is 1~3h, fine hot-rolled temperature It is 400 DEG C~600 DEG C, the time is 1~2h.
Further, step S4 annealing temperature is 400~500 DEG C, and then air is cooled to room temperature, when annealing Between 1h.
Embodiment 1:
S1, carbon 0.5%, silicon 0.3%, manganese 1.0%, phosphorus 0.018%, sulphur 0.02%, chromium 1.0%, molybdenum 0.3%, vanadium are weighed 0.20%, copper 0.25% and surplus are iron, are smelted in investment vacuum metling converter after mixing, obtain steel alloy blank；
S2, continuous casting operation will be carried out on the placement conticaster of steel alloy blank obtained in step S1, obtains alloy steel profile；
S3, by the resulting alloy steel profile of step S1 after heat treatment, be heat-fed in roll mill, carry out hot rolling and fine Hot-rolled manipulation obtains special steel alloy finished product；
S4, it after the resulting extraordinary steel alloy of step S3 is passed through annealing, is cooled to room temperature, by examining, packing Storage.
Wherein, 1550 DEG C of smelting temperature, smelting time 2h in the step S1, smelting furnace operating pressure is 0.1MPa.
Wherein, casting temperature is 650 DEG C in the step S2.
Further, hot-rolled temperature is 500 DEG C, time 2.5h in the step S3, and fine hot-rolled temperature is 550 DEG C, Time is 2h.
Further, the step S4 annealing temperature is 480 DEG C, and then air is cooled to room temperature, annealing time 1h.
Novel 51CrV4 special type steel alloy according to the present invention and its preparation process, by using iron as the iron-based conjunction of base The metallic elements such as chromium, molybdenum, vanadium and copper are added in gold, improve the overall structural strength of extraordinary steel alloy, and carbon containing by entirety mentions Height, though the plasticity and impact of loss a part, its tensile strength greatly improved, and in order to improve market competition, reduce at This, titanium is not added while improving carbon content, so that the overall structural strength of steel alloy is still relatively strong；By adding in component Enter amount of copper, improves steel alloy atmospheric corrosion resistance ability, and more save the cost plays also as intensified element addition in this way The effect of precipitation-hardening, allomeric function is perfect, practical.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea Technical solution, all should be within the scope of protection determined by the claims.

Claims (6)

1. a kind of novel 51CrV4 special type steel alloy and its preparation process, which is characterized in that including by following weight percent Chemical component is prepared:
Carbon 0.47~0.55%, silicon 0.15~0.4%, manganese 0.7~1.1%, phosphorus 0.001~0.025%, sulphur 0.001~ 0.025%, chromium 0.9~1.2%, molybdenum 0.001~0.40%, vanadium 0.10~0.25%, copper 0.001~0.40% and surplus are Iron.
2. a kind of novel 51CrV4 special type steel alloy and its preparation process, which comprises the steps of:
S1, carbon 0.47~0.55%, silicon 0.15~0.4%, manganese 0.7~1.1%, phosphorus 0.001~0.025%, sulphur 0.001 are weighed ~0.025%, chromium 0.9~1.2%, molybdenum 0.001~0.40%, vanadium 0.10~0.25%, copper 0.001~0.40% and surplus are Iron；
S2, continuous casting operation will be carried out on the placement conticaster of steel alloy blank obtained in step S1, obtains alloy steel profile；
S3, it after the resulting alloy steel profile of step S1 is passed through heat treatment, is heat-fed in roll mill, carries out hot rolling and fine hot rolling Operation, obtains special steel alloy finished product；
S4, it after the resulting extraordinary steel alloy of step S3 is passed through annealing, is cooled to room temperature, by examining, being packed and stored.
3. novel 51CrV4 special type steel alloy according to claim 2 and its preparation process, which is characterized in that the step 1400~1600 DEG C of smelting temperature in S1, smelting time are 1~3h, and smelting furnace operating pressure is 0.05~0.12MPa.
4. novel 51CrV4 special type steel alloy according to claim 2 and its preparation process, which is characterized in that the step Casting temperature is 500~700 DEG C in S2.
5. novel 51CrV4 special type steel alloy according to claim 2 and its preparation process, which is characterized in that the step In S3 hot-rolled temperature be 400 DEG C~700 DEG C, the time be 1~3h, fine hot-rolled temperature be 400 DEG C~600 DEG C, the time be 1~ 2h。
6. novel 51CrV4 special type steel alloy according to claim 2 and its preparation process, which is characterized in that the step It is 400~500 DEG C that S4, which makes annealing treatment temperature, and then air is cooled to room temperature, annealing time 1h.
CN201811380636.8A 2018-11-20 2018-11-20 A kind of novel 51CrV4 special type steel alloy and its preparation process Pending CN109371323A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110938732A (en) * 2019-12-05 2020-03-31 马鞍山钢铁股份有限公司 Titanium-containing atmospheric corrosion-resistant 14.9-grade high-strength bolt steel and production method thereof
CN111378824A (en) * 2020-05-14 2020-07-07 东北大学 Hot processing technology of 51CrV4 hypoeutectoid fine blanking steel

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108500507A (en) * 2018-02-12 2018-09-07 西安理工大学 51CrV4 spring steel metal flux-cored wires and preparation method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108500507A (en) * 2018-02-12 2018-09-07 西安理工大学 51CrV4 spring steel metal flux-cored wires and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
邱绍岐等: "《电炉炼钢原理及工艺》", 31 December 1996, 冶金工业出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110938732A (en) * 2019-12-05 2020-03-31 马鞍山钢铁股份有限公司 Titanium-containing atmospheric corrosion-resistant 14.9-grade high-strength bolt steel and production method thereof
CN111378824A (en) * 2020-05-14 2020-07-07 东北大学 Hot processing technology of 51CrV4 hypoeutectoid fine blanking steel

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Application publication date: 20190222