CN103451565A - Low-temperature-resistant seamless deformed steel and preparation process thereof - Google Patents
Low-temperature-resistant seamless deformed steel and preparation process thereof Download PDFInfo
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Abstract
The invention discloses low-temperature-resistant seamless deformed steel which is characterized by comprising the following chemical components in parts by weight: 300 to 900 parts of iron, 10 to 80 parts of copper, 1 to 10 parts of aluminum, 2 to 8 parts of carbon, 1 to 5 parts of silicon, 0.02 to 0.3 part of vanadium, 0.02 to 0.06 part of chromium, 0.01 to 0.09 part of nickel, 0.01 to 0.06 part of bismuth, 0.02 to 0.05 part of beryllium, 0.015 to 0.065 part of indium, 0.005 to 0.02 part of cerium and 0.018 to 0.04 part of praseodymium. A preparation process comprises the following steps of: performing a heat-quenching treatment: firstly heating to 700 DEG C to 850 DEG C and preserving heat for 15 to 20 minutes, rapidly heating to 850 DEG C to 900 DEG C and preserving the heat for 35 to 40 minutes, rapidly cooling to be below 350 DEG C and naturally cooling; and performing a heat-tempering treatment under the conditions that the tempering temperature is 600 DEG C and the heat preservation time is 10 minutes, thereby obtaining the low-temperature-resistant seamless deformed steel. Thus, the physical property and the chemical property of the low-temperature-resistant seamless deformed steel are improved. The preparation process is simple and is low in production cost.
Description
Technical field
The present invention relates to the deformed steel field, particularly relate to a kind of low temperature resistant seamless heterotype steel and preparation technology thereof.
Background technology
Seamless steel tube production is one of national mainstay industry, and along with the development of national economy, the demand of weldless steel tube is the trend of cumulative year after year.Weldless steel tube is for the manufacture of structural members such as automobile, train, aircraft, steamer, space guns, and the component of machine such as agricultural, mine, engineering, electrician, weaving, military project, weldless steel tube is at civil area or the application of military industry field is all very extensive.In complex environment, the characteristics such as deformed steel need to have that high strength, heatproof are poor, long service life and high comprehensive performance.But, at present on the low side for the manufacture of the strength of materials of deformed steel, toughness is limited, over-all properties is low, causes the supporting capacity of fire-fighting equipment less, shock resistance is poor, counter-bending and the distortion performance is low.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of low temperature resistant seamless heterotype steel, can improve physicals and the chemical property of deformed steel, and preparation technology is simple, and production cost is low.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of low temperature resistant seamless heterotype steel is provided, comprises that following chemical element forms by mass fraction: iron 300-900 part, copper 10-80 part, aluminium 1-10 part, carbon 2-8 part, silicon 1-5 part, vanadium 0.02-0.3 part, chromium 0.02-0.06 part, nickel 0.01-0.09 part, bismuth 0.01-0.06 part, beryllium 0.02-0.05 part, indium 0.015-0.065 part, cerium 0.005-0.02 part and praseodymium 0.018-0.04 part.
In a preferred embodiment of the present invention, comprise that following chemical element forms by mass fraction: 0.04 part of 900 parts of iron, 80 parts of copper, 10 parts, aluminium, 8 parts, carbon, 5 parts of silicon, 0.3 part of vanadium, 0.06 part of chromium, 0.09 part, nickel, 0.06 part of bismuth, 0.05 part of beryllium, 0.065 part of indium, 0.02 part of cerium and praseodymium.
In a preferred embodiment of the present invention, comprise that following chemical element forms by mass fraction: 0.04 part of 900 parts of iron, 80 parts of copper, 10 parts, aluminium, 8 parts, carbon, 5 parts of silicon, 0.3 part of vanadium, 0.06 part of chromium, 0.09 part, nickel, 0.06 part of bismuth, 0.05 part of beryllium, 0.065 part of indium, 0.02 part of cerium and praseodymium.
In a preferred embodiment of the present invention, comprise that following chemical element forms by mass fraction: 0.02 part of 500 parts of iron, 60 parts of copper, 5 parts, aluminium, 6 parts, carbon, 3 parts of silicon, 0.2 part of vanadium, 0.05 part of chromium, 0.06 part, nickel, 0.03 part of bismuth, 0.04 part of beryllium, 0.03 part of indium, 0.015 part of cerium and praseodymium.
For solving the problems of the technologies described above, another technical solution used in the present invention is: the preparation technology that a kind of low temperature resistant seamless heterotype steel is provided, comprise the following steps: a. hot quenching is processed: first add and be warming up to 700 ~ 850 ℃, be incubated after 15 ~ 20 minutes, the speed of reheating is warming up to 850 ~ 900 ℃, is incubated 35 ~ 40 minutes, then, be cooled to rapidly below 350 ℃, then, naturally cooling; B. hot temper: tempering temperature is 600 ℃, soaking time 10 minutes.
The invention has the beneficial effects as follows: the low temperature resistant seamless heterotype steel of the present invention, can improve physicals and the chemical property of deformed steel, preparation technology is simple, and production cost is low.
Embodiment
Below will the technical scheme in the embodiment of the present invention be clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under the creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1: comprise that following chemical element forms by mass fraction: 0.04 part of 900 parts of iron, 80 parts of copper, 10 parts, aluminium, 8 parts, carbon, 5 parts of silicon, 0.3 part of vanadium, 0.06 part of chromium, 0.09 part, nickel, 0.06 part of bismuth, 0.05 part of beryllium, 0.065 part of indium, 0.02 part of cerium and praseodymium, by hot quenching, process: first add and be warming up to 700 ~ 850 ℃, be incubated after 15 ~ 20 minutes, the speed of reheating is warming up to 850 ~ 900 ℃, be incubated 35 ~ 40 minutes, then, be cooled to rapidly below 350 ℃, then, naturally cooling; Hot temper: tempering temperature is 600 ℃, thereby soaking time obtains finished product in 10 minutes.
Embodiment 2: comprise that following chemical element forms by mass fraction: 0.04 part of 900 parts of iron, 80 parts of copper, 10 parts, aluminium, 8 parts, carbon, 5 parts of silicon, 0.3 part of vanadium, 0.06 part of chromium, 0.09 part, nickel, 0.06 part of bismuth, 0.05 part of beryllium, 0.065 part of indium, 0.02 part of cerium and praseodymium, by hot quenching, process: first add and be warming up to 700 ~ 850 ℃, be incubated after 15 ~ 20 minutes, the speed of reheating is warming up to 850 ~ 900 ℃, be incubated 35 ~ 40 minutes, then, be cooled to rapidly below 350 ℃, then, naturally cooling; Hot temper: tempering temperature is 600 ℃, thereby soaking time obtains finished product in 10 minutes.
Embodiment 3: comprise that following chemical element forms by mass fraction: 0.02 part of 500 parts of iron, 60 parts of copper, 5 parts, aluminium, 6 parts, carbon, 3 parts of silicon, 0.2 part of vanadium, 0.05 part of chromium, 0.06 part, nickel, 0.03 part of bismuth, 0.04 part of beryllium, 0.03 part of indium, 0.015 part of cerium and praseodymium, by hot quenching, process: first add and be warming up to 700 ~ 850 ℃, be incubated after 15 ~ 20 minutes, the speed of reheating is warming up to 850 ~ 900 ℃, be incubated 35 ~ 40 minutes, then, be cooled to rapidly below 350 ℃, then, naturally cooling; Hot temper: tempering temperature is 600 ℃, thereby soaking time obtains finished product in 10 minutes.
Be different from prior art, the low temperature resistant seamless heterotype steel of the present invention, can improve physicals and the chemical property of deformed steel, and preparation technology is simple, and production cost is low.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification sheets of the present invention to do, or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (5)
1. a low temperature resistant seamless heterotype steel, it is characterized in that, comprise that following chemical element forms by mass fraction: iron 300-900 part, copper 10-80 part, aluminium 1-10 part, carbon 2-8 part, silicon 1-5 part, vanadium 0.02-0.3 part, chromium 0.02-0.06 part, nickel 0.01-0.09 part, bismuth 0.01-0.06 part, beryllium 0.02-0.05 part, indium 0.015-0.065 part, cerium 0.005-0.02 part and praseodymium 0.018-0.04 part.
2. low temperature resistant seamless heterotype steel according to claim 1, it is characterized in that, comprise that following chemical element forms by mass fraction: 0.018 part of 300 parts of iron, 10 parts of copper, 1 part, aluminium, 2 parts, carbon, 1 part of silicon, 0.02 part of vanadium, 0.02 part of chromium, 0.01 part, nickel, 0.01 part of bismuth, 0.02 part of beryllium, 0.015 part of indium, 0.005 part of cerium and praseodymium.
3. low temperature resistant seamless heterotype steel according to claim 1, it is characterized in that, comprise that following chemical element forms by mass fraction: 0.04 part of 900 parts of iron, 80 parts of copper, 10 parts, aluminium, 8 parts, carbon, 5 parts of silicon, 0.3 part of vanadium, 0.06 part of chromium, 0.09 part, nickel, 0.06 part of bismuth, 0.05 part of beryllium, 0.065 part of indium, 0.02 part of cerium and praseodymium.
4. low temperature resistant seamless heterotype steel according to claim 1, it is characterized in that, comprise that following chemical element forms by mass fraction: 0.02 part of 500 parts of iron, 60 parts of copper, 5 parts, aluminium, 6 parts, carbon, 3 parts of silicon, 0.2 part of vanadium, 0.05 part of chromium, 0.06 part, nickel, 0.03 part of bismuth, 0.04 part of beryllium, 0.03 part of indium, 0.015 part of cerium and praseodymium.
5. the preparation technology of a low temperature resistant seamless heterotype steel as claimed in claim 1, is characterized in that, comprises the following steps:
A. hot quenching is processed: first add and be warming up to 700 ~ 850 ℃, after being incubated 15 ~ 20 minutes, the speed of reheating is warming up to 850 ~ 900 ℃, is incubated 35 ~ 40 minutes, then, be cooled to rapidly below 350 ℃, then, naturally cooling;
B. hot temper: tempering temperature is 600 ℃, soaking time 10 minutes.
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| CN 201310411646 CN103451565A (en) | 2013-09-11 | 2013-09-11 | Low-temperature-resistant seamless deformed steel and preparation process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789613A (en) * | 2014-01-16 | 2014-05-14 | 安徽省杨氏恒泰钢管扣件加工有限公司 | Seamless steel pipe material easy for processing and preparation method thereof |
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2013
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103789613A (en) * | 2014-01-16 | 2014-05-14 | 安徽省杨氏恒泰钢管扣件加工有限公司 | Seamless steel pipe material easy for processing and preparation method thereof |
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Application publication date: 20131218 |
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