CN105803343A - Steel with excellent toughness - Google Patents
Steel with excellent toughness Download PDFInfo
- Publication number
- CN105803343A CN105803343A CN201610366548.7A CN201610366548A CN105803343A CN 105803343 A CN105803343 A CN 105803343A CN 201610366548 A CN201610366548 A CN 201610366548A CN 105803343 A CN105803343 A CN 105803343A
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- China
- Prior art keywords
- steel
- excellent toughness
- phosphorus
- raw material
- manganese
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Classifications
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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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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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
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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
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- 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
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses steel with excellent toughness. The steel comprises raw material components of carbon, silicon, manganese, phosphorus, sulfur, nickel, chromium, copper, iron and impurities; the steel comprises the following raw material components in percentage by weight: 0.165-0.183% of carbon, 0.23-0.27% of silicon, 0.37-0.49% of manganese, phosphorus not more than 0.032%, sulfur not more than 0.033%, nickel not more than 0.29%, chromium not more than 0.247%, copper not more than 0.264%, and the balance of iron and impurities; a steel making fuel of the steel adopts cokes; the cokes are burnt to release heat and generate gas; and in the ascending process of the gas, the heat is transferred to steel making raw materials. Through the mode, the steel with excellent toughness can bear higher impact strength, is low in brittle rupture possibility, has no potential safety hazards after long-time use, can guarantee safe use of steel products, and largely reduces the danger.
Description
Technical field
The present invention relates to Steel material field, particularly relate to a kind of steel with excellent toughness.
Background technology
Steel be with ferrum as essential element, phosphorus content typically below 2%, and containing the material of other elements.By purposes, steel can be classified, including structural steel, workbox and special steel.Structural steel is further divided into construction steel and steel for engineering mechanism purpose two class.Workbox includes carbon tool steel, alloy tool steel and high-speed tool steel etc..Special steel includes stainless acid resistant steel, heat resisting steel, electrothermal alloy and magnetic material etc..Present steel is susceptible to the probability of brittle fracture after using, show as toughness bad, use and there is potential safety hazard.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of steel with excellent toughness, can meet modern's demand to steel.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of steel with excellent toughness, the material composition of described steel includes carbon, silicon, manganese, phosphorus, sulfur, nickel, chromium, copper, ferrum and impurity, described steel is by weight percentage, including material composition have: carbon 0.165-0.183%, silicon 0.23-0.27%, manganese 0.37-0.49%, phosphorus≤0.032%, sulfur≤0.033%, nickel≤0.29%, chromium≤0.247%, copper≤0.264%, ferrum and impurity: surplus, the steel-making fuel of described steel uses coke, described coke combustion heat release amount also produces coal gas, heat is passed to the raw material of steel-making in uphill process by described coal gas.
In a preferred embodiment of the present invention, described steel by weight percentage, including material composition have: carbon 0.178%, silicon 0.26%, manganese 0.45%, phosphorus 0.016%, sulfur 0.028%, nickel 0.19%, chromium 0.137%, copper 0.178%, ferrum and impurity: surplus.
In a preferred embodiment of the present invention, the cutoff grade of the magnetic iron ore of the iron-smelting raw material of described steel is 21-23.
In a preferred embodiment of the present invention, the production-grade of the hematite of the iron-smelting raw material of described steel is 28-30.
The invention has the beneficial effects as follows: the steel with excellent toughness of the present invention, this kind of steel can bear bigger impact strength, and the probability that brittle fracture occurs is little, and long-time use does not the most exist potential safety hazard, ensure that the safe handling of product made from steel, greatly reduce danger.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, all other embodiments that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment one:
A kind of steel with excellent toughness is provided, the material composition of described steel includes carbon, silicon, manganese, phosphorus, sulfur, nickel, chromium, copper, ferrum and impurity, described steel is by weight percentage, including material composition have: carbon 0.178%, silicon 0.26%, manganese 0.45%, phosphorus 0.016%, sulfur 0.028%, nickel 0.19%, chromium 0.137%, copper 0.178%, ferrum and impurity: surplus, the steel-making fuel of described steel uses coke, described coke combustion heat release amount also produces coal gas, and heat is passed to the raw material of steel-making in uphill process by described coal gas.The cutoff grade of the magnetic iron ore of the iron-smelting raw material of described steel is 21.The production-grade of the hematite of the iron-smelting raw material of described steel is 30.
Embodiment two:
A kind of steel with excellent toughness is provided, the material composition of described steel includes carbon, silicon, manganese, phosphorus, sulfur, nickel, chromium, copper, ferrum and impurity, described steel is by weight percentage, including material composition have: carbon 0.165%, silicon 0.27%, manganese 0.37%, phosphorus 0.032%, sulfur 0.033%, nickel 0.29%, chromium 0.247%, copper 0.264%, ferrum and impurity: surplus, the steel-making fuel of described steel uses coke, described coke combustion heat release amount also produces coal gas, and heat is passed to the raw material of steel-making in uphill process by described coal gas.The cutoff grade of the magnetic iron ore of the iron-smelting raw material of described steel is 22.The production-grade of the hematite of the iron-smelting raw material of described steel is 29.
Embodiment three:
A kind of steel with excellent toughness is provided, the material composition of described steel includes carbon, silicon, manganese, phosphorus, sulfur, nickel, chromium, copper, ferrum and impurity, described steel is by weight percentage, including material composition have: carbon 0.183%, silicon 0.23%, manganese 0.49%, phosphorus 0.022%, sulfur 0.012%, nickel 0.24%, chromium 0.22%, copper 0.14%, ferrum and impurity: surplus, the steel-making fuel of described steel uses coke, described coke combustion heat release amount also produces coal gas, and heat is passed to the raw material of steel-making in uphill process by described coal gas.The cutoff grade of the magnetic iron ore of the iron-smelting raw material of described steel is 21.The production-grade of the hematite of the iron-smelting raw material of described steel is 28.
The invention has the beneficial effects as follows:
The steel described in one, with excellent toughness can bear bigger impact strength, and the probability that brittle fracture occurs is little；
Two, there is described in the steel of excellent toughness use for a long time and the most there is not potential safety hazard, it is possible to ensure the safe handling of product made from steel, greatly reduce danger.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, the most in like manner it is included in the scope of patent protection of the present invention.
Claims (4)
1. a steel with excellent toughness, it is characterized in that, the material composition of described steel includes carbon, silicon, manganese, phosphorus, sulfur, nickel, chromium, copper, ferrum and impurity, described steel is by weight percentage, including material composition have: carbon 0.165-0.183%, silicon 0.23-0.27%, manganese 0.37-0.49%, phosphorus≤0.032%, sulfur≤0.033%, nickel≤0.29%, chromium≤0.247%, copper≤0.264%, ferrum and impurity: surplus, the steel-making fuel of described steel uses coke, described coke combustion heat release amount also produces coal gas, heat is passed to the raw material of steel-making in uphill process by described coal gas.
The steel with excellent toughness the most according to claim 1, it is characterised in that described steel by weight percentage, including material composition have: carbon 0.178%, silicon 0.26%, manganese 0.45%, phosphorus 0.016%, sulfur 0.028%, nickel
0.19%, chromium 0.137%, copper 0.178%, ferrum and impurity: surplus.
The steel with excellent toughness the most according to claim 1, it is characterised in that the cutoff grade of the magnetic iron ore of the iron-smelting raw material of described steel is 21-23.
The steel with excellent toughness the most according to claim 1, it is characterised in that the production-grade of the hematite of the iron-smelting raw material of described steel is 28-30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366548.7A CN105803343A (en) | 2016-05-30 | 2016-05-30 | Steel with excellent toughness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366548.7A CN105803343A (en) | 2016-05-30 | 2016-05-30 | Steel with excellent toughness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105803343A true CN105803343A (en) | 2016-07-27 |
Family
ID=56453142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610366548.7A Pending CN105803343A (en) | 2016-05-30 | 2016-05-30 | Steel with excellent toughness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105803343A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5652088B2 (en) * | 1974-11-21 | 1981-12-10 | ||
| CN1281906A (en) * | 2000-06-02 | 2001-01-31 | 江阴兴澄钢铁有限公司 | High-strength, high-toughness and corrosion resistant mooring chain steel and its production process |
| JP2003064442A (en) * | 2001-08-21 | 2003-03-05 | Sumitomo Metal Ind Ltd | Steel sheet having excellent fatigue crack propagation resistance |
| JP2008196045A (en) * | 2007-01-17 | 2008-08-28 | Jfe Steel Kk | Manufacturing method of steel for high strength reinforcement |
| CN104662193A (en) * | 2012-09-19 | 2015-05-27 | 杰富意钢铁株式会社 | Wear-resistant steel plate having excellent low-temperature toughness and corrosion wear resistance |
| CN104988435A (en) * | 2015-07-11 | 2015-10-21 | 江阴兴澄特种钢铁有限公司 | Low-carbon high-tenacity super-thick steel plate and manufacturing method thereof |
-
2016
- 2016-05-30 CN CN201610366548.7A patent/CN105803343A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5652088B2 (en) * | 1974-11-21 | 1981-12-10 | ||
| CN1281906A (en) * | 2000-06-02 | 2001-01-31 | 江阴兴澄钢铁有限公司 | High-strength, high-toughness and corrosion resistant mooring chain steel and its production process |
| JP2003064442A (en) * | 2001-08-21 | 2003-03-05 | Sumitomo Metal Ind Ltd | Steel sheet having excellent fatigue crack propagation resistance |
| JP2008196045A (en) * | 2007-01-17 | 2008-08-28 | Jfe Steel Kk | Manufacturing method of steel for high strength reinforcement |
| CN104662193A (en) * | 2012-09-19 | 2015-05-27 | 杰富意钢铁株式会社 | Wear-resistant steel plate having excellent low-temperature toughness and corrosion wear resistance |
| CN104988435A (en) * | 2015-07-11 | 2015-10-21 | 江阴兴澄特种钢铁有限公司 | Low-carbon high-tenacity super-thick steel plate and manufacturing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 李廷钰等: "《烧结烟气排放控制技术及工程应用》", 31 January 2015 * |
| 焦玉书等: "《世界铁矿资源开发实践》", 31 January 2013 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160727 |