CN104087837A - Hydrogen-sulfide-corrosion-resistant special-shaped steel tube and preparation method thereof - Google Patents

Hydrogen-sulfide-corrosion-resistant special-shaped steel tube and preparation method thereof Download PDF

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Publication number
CN104087837A
CN104087837A CN201410307593.6A CN201410307593A CN104087837A CN 104087837 A CN104087837 A CN 104087837A CN 201410307593 A CN201410307593 A CN 201410307593A CN 104087837 A CN104087837 A CN 104087837A
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steel
resistant
hydrogen sulfide
steel pipe
sulfide corrosion
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CN201410307593.6A
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CN104087837B (en
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周金苗
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Zhaoqing Eggert Stainless Steel Products Co Ltd
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JIANGSU HUACHENG INDUSTRY PIPE MAKING Co Ltd
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Abstract

The invention relates to the technical field of special-shaped steel tubes, particularly a hydrogen-sulfide-corrosion-resistant special-shaped steel tube and a preparation method thereof. The special-shaped steel tube is composed of the following chemical components in percentage by weight: 0.18%-0.28% of carbon, 0.12%-0.26% of silicon, 0.8%-1.5% of manganese, 0.95%-1.2% of chromium, 0.62%-0.78% of molybdenum, 0.01%-0.02% of titanium, 0.008%-0.012% of phosphorus, 0.002%-0.004% of sulfur, 0.06%-0.18% of rhenium, 0.002%-0.004% of nitrogen, 0.02%-0.05% of aluminum, 0.2%-0.5% of rare earth, 0.1%-0.28% of nickel+vanadium+niobium and the balance of iron. The hydrogen-sulfide-corrosion-resistant special-shaped steel tube has the advantages of low cost, high structure stability and favorable cold/hot workability.

Description

Steel tubes of a kind of hydrogen sulfide corrosion-resistant and preparation method thereof
Technical field
The present invention relates to steel tubes technical field, steel tubes of especially a kind of hydrogen sulfide corrosion-resistant and preparation method thereof.
Background technology
Steel tubes is a kind of rectangular steel with hollow section, is widely used in the every field such as the structural members such as automobile, train, aircraft, steamer and space gun, component of machine, petrochemical complex, geological drilling, textile manufacturing machine, radio communication, health care, completion.
The H of oil well pipe 2s stress corrosion problem is the large problem that recent year, outer many oil fields face, angle from oil well pipe material, common oil well pipe obviously can not meet actual operation requirements, especially, there is a large amount of hydrogen sulfide in some region in the oil field such as the Sichuan oilfield of China and long celebrating and the U.S., some oil fields of Canada owing to containing in geologic framework.This gas aqueous solution is acid and has certain corrodibility, especially to have under the condition that high temperature and corrosive gases content are higher corrodibility stronger.The existence of hydrogen sulfide not only produces general corrosion, also can produce hydrogen induced cracking (HIC) and stress corrosion crack, more aggravates local corrosion under the environment of CO2 and Cl-, thereby has produced huge financial loss the work-ing life of having reduced material.
Low alloy steel at present used is at H 2the equal difficulty in S corrosive nature aspect reaches good use properties, although general low-alloy Cr, Mo steel have certain corrosion resistance nature, the crisp hard tendency that in steel, Cr, Mo cause make its clod wash and welding property poor.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the resistance to H of steel tubes of the prior art 2s corrosive nature is poor, clod wash and the poor technical deficiency of welding property, and a kind of resistance to H is provided 2s corrosive nature is good, the steel tubes of the hydrogen sulfide corrosion-resistant of clod wash and good welding performance and preparation method thereof.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of steel tubes of hydrogen sulfide corrosion-resistant, chemical composition is as follows by weight percentage: carbon 0.18%-0.28%, silicon 0.12%-0.26%, manganese 0.8%-1.5%, chromium 0.95%-1.2%, molybdenum 0.62%-0.78%, titanium 0.01%-0.02%, phosphorus 0.008%-0.012%, sulphur 0.002%-0.004%, rhenium 0.06%-0.18%, nitrogen 0.002%-0.004%, aluminium 0.02%-0.05%, rare earth 0.2%-0.5%, nickel+vanadium+niobium 0.1%-0.28%, all the other are iron.
Further, described rare earth is rare-earth elements of lanthanum.
A kind of prepare steel tubes of hydrogen sulfide corrosion-resistant method, comprise electrosmelting, ladle refining, steel ingot casting, steel ingot finishing, forging pipe, tube rolling, cooling, thermal treatment, thermospray step, described thermal treatment divides three steps to carry out: (1) carries out hot finished steel pipe the austenitizing processing of 980-1020 ℃, come out of the stove and be quenched to below 180 ℃, (2) steel pipe after the first quenching is carried out to 900-950 ℃ of secondary insulation and process, be quenched to below 180 ℃; (3) steel pipe after modified being carried out to the destressing that the straightening processing of 350-400 ℃ adds 720-870 ℃ processes.
Further, the temperature of described smelting and casting is 1580-1620 ℃, and the temperature of described forging pipe is 1300-1350 ℃, and the beginning temperature of described tube rolling is that 1100-1180 ℃, finishing temperature are 990-1000 ℃, the cooling employing air cooling of described steel pipe.
Further, described thermal spraying treatment is the surface spraying one deck nickel base alloy layer at steel pipe.
Further, chemical composition is as follows by weight percentage: carbon 0.25%, silicon 0.2%, manganese 1.2%, chromium 1.1%, molybdenum 0.7%, titanium 0.02%, phosphorus 0.01%, sulphur 0.003%, rhenium 0.12%, nitrogen 0.003%, aluminium 0.03%, rare earth 0.3%, nickel+vanadium+niobium 0.2%, all the other are iron.
Adopt the beneficial effect of technical scheme of the present invention to be:
(1) the steel tubes cost of hydrogen sulfide corrosion-resistant of the present invention low, there is good structure stability, cold and hot working; The unrelieved stress of product is only 9% of yield strength, and yield strength reaches 760MPa, and hardness is only 26.3HRC;
(2) product has good sulfurated hydrogen stress etching-resisting performance, and the sulfurated hydrogen stress etching-resisting threshold value of measuring by NACE TM0177A method reaches 90% of the actual yield strength of steel pipe.
(3) preparation method of the present invention, production technique is simple, and cost is low, has good economic benefit, is applicable to large-scale industrial production.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described.
Embodiment 1
A kind of steel tubes of hydrogen sulfide corrosion-resistant, chemical composition is as follows by weight percentage: carbon 0.18%, silicon 0.12%, manganese 0.8%, chromium 0.95%, molybdenum 0.62%, titanium 0.01%, phosphorus 0.008%, sulphur 0.002%, rhenium 0.06%, nitrogen 0.002%, aluminium 0.02%, rare earth 0.2%, nickel+vanadium+niobium 0.1%, all the other are iron.Wherein said rare earth is rare-earth elements of lanthanum.
A kind of prepare steel tubes of hydrogen sulfide corrosion-resistant method, comprise electrosmelting, ladle refining, steel ingot casting, steel ingot finishing, forging pipe, tube rolling, cooling, thermal treatment, thermospray step, described thermal treatment divides three steps to carry out: (1) carries out hot finished steel pipe the austenitizing processing of 980 ℃, come out of the stove and be quenched to below 180 ℃, (2) steel pipe after the first quenching is carried out to 900 ℃ of secondary insulations and process, be quenched to below 180 ℃; (3) steel pipe after modified being carried out to the destressing that the straightening processing of 350-400 ℃ adds 720 ℃ processes.Described thermal spraying treatment is the surface spraying one deck nickel base alloy layer at steel pipe.
Wherein, the temperature of described smelting and casting is 1580 ℃, and the temperature of described forging pipe is 1300 ℃, and the beginning temperature of described tube rolling is that 1100 ℃, finishing temperature are 990 ℃, the cooling employing air cooling of described steel pipe.
Embodiment 2
A kind of steel tubes of hydrogen sulfide corrosion-resistant, chemical composition is as follows by weight percentage: carbon 0.25%, silicon 0.2%, manganese 1.2%, chromium 1.1%, molybdenum 0.7%, titanium 0.02%, phosphorus 0.01%, sulphur 0.003%, rhenium 0.12%, nitrogen 0.003%, aluminium 0.03%, rare earth 0.3%, nickel+vanadium+niobium 0.2%, all the other are iron.
A kind of prepare steel tubes of hydrogen sulfide corrosion-resistant method, comprise electrosmelting, ladle refining, steel ingot casting, steel ingot finishing, forging pipe, tube rolling, cooling, thermal treatment, thermospray step, described thermal treatment divides three steps to carry out: (1) carries out hot finished steel pipe the austenitizing processing of 1000 ℃, come out of the stove and be quenched to below 180 ℃, (2) steel pipe after the first quenching is carried out to 920 ℃ of secondary insulations and process, be quenched to below 180 ℃; (3) steel pipe after modified being carried out to the destressing that the straightening processing of 350-400 ℃ adds 800 ℃ processes.Described thermal spraying treatment is the surface spraying one deck nickel base alloy layer at steel pipe.
Wherein, the temperature of described smelting and casting is 1600 ℃, and the temperature of described forging pipe is 1320 ℃, and the beginning temperature of described tube rolling is that 1150 ℃, finishing temperature are 990-1000 ℃, the cooling employing air cooling of described steel pipe.
Embodiment 3
A kind of steel tubes of hydrogen sulfide corrosion-resistant, chemical composition is as follows by weight percentage: carbon 0.28%, silicon 0.26%, manganese 1.5%, chromium 1.2%, molybdenum 0.78%, titanium 0.02%, phosphorus 0.012%, sulphur 0.004%, rhenium 0.18%, nitrogen 0.004%, aluminium 0.05%, rare earth 0.5%, nickel+vanadium+niobium 0.28%, all the other are iron.Wherein said rare earth is rare-earth elements of lanthanum.
A kind of prepare steel tubes of hydrogen sulfide corrosion-resistant method, comprise electrosmelting, ladle refining, steel ingot casting, steel ingot finishing, forging pipe, tube rolling, cooling, thermal treatment, thermospray step, described thermal treatment divides three steps to carry out: (1) carries out hot finished steel pipe the austenitizing processing of 1020 ℃, come out of the stove and be quenched to below 180 ℃, (2) steel pipe after the first quenching is carried out to 950 ℃ of secondary insulations and process, be quenched to below 180 ℃; (3) steel pipe after modified being carried out to the destressing that the straightening processing of 350-400 ℃ adds 870 ℃ processes.Described thermal spraying treatment is the surface spraying one deck nickel base alloy layer at steel pipe.
Wherein, the temperature of described smelting and casting is 1620 ℃, and the temperature of described forging pipe is 1350 ℃, and the beginning temperature of described tube rolling is that 1180 ℃, finishing temperature are 990-1000 ℃, the cooling employing air cooling of described steel pipe.
Embodiment 4
A kind of steel tubes of hydrogen sulfide corrosion-resistant, chemical composition is as follows by weight percentage: carbon 0.2%, silicon 0.24%, manganese 1.1%, chromium 1.1%, molybdenum 0.72%, titanium 0.015%, phosphorus 0.009%, sulphur 0.0025%, rhenium 0.11%, nitrogen 0.0025%, aluminium 0.04%, rare earth 0.3%, nickel+vanadium+niobium 0.17%, all the other are iron.Wherein said rare earth is rare-earth elements of lanthanum.
A kind of prepare steel tubes of hydrogen sulfide corrosion-resistant method, comprise electrosmelting, ladle refining, steel ingot casting, steel ingot finishing, forging pipe, tube rolling, cooling, thermal treatment, thermospray step, described thermal treatment divides three steps to carry out: (1) carries out hot finished steel pipe the austenitizing processing of 980 ℃, come out of the stove and be quenched to below 180 ℃, (2) steel pipe after the first quenching is carried out to 900 ℃ of secondary insulations and process, be quenched to below 180 ℃; (3) steel pipe after modified being carried out to the destressing that the straightening processing of 350-400 ℃ adds 720 ℃ processes.Described thermal spraying treatment is the surface spraying one deck nickel base alloy layer at steel pipe.
Wherein, the temperature of described smelting and casting is 1580 ℃, and the temperature of described forging pipe is 1300 ℃, and the beginning temperature of described tube rolling is that 1100 ℃, finishing temperature are 990 ℃, the cooling employing air cooling of described steel pipe.
Embodiment 5
A kind of steel tubes of hydrogen sulfide corrosion-resistant, chemical composition is as follows by weight percentage: carbon 0.25%, silicon 0.2%, manganese 1.3%, chromium 0.98%, molybdenum 0.72%, titanium 0.015%, phosphorus 0.009%, sulphur 0.0025%, rhenium 0.11%, nitrogen 0.0025%, aluminium 0.04%, rare earth 0.3%, nickel+vanadium+niobium 0.17%, all the other are iron.Wherein said rare earth is rare-earth elements of lanthanum.
A kind of prepare steel tubes of hydrogen sulfide corrosion-resistant method, comprise electrosmelting, ladle refining, steel ingot casting, steel ingot finishing, forging pipe, tube rolling, cooling, thermal treatment, thermospray step, described thermal treatment divides three steps to carry out: (1) carries out hot finished steel pipe the austenitizing processing of 980 ℃, come out of the stove and be quenched to below 180 ℃, (2) steel pipe after the first quenching is carried out to 900 ℃ of secondary insulations and process, be quenched to below 180 ℃; (3) steel pipe after modified being carried out to the destressing that the straightening processing of 350-400 ℃ adds 720 ℃ processes.Described thermal spraying treatment is the surface spraying one deck nickel base alloy layer at steel pipe.
Wherein, the temperature of described smelting and casting is 1580 ℃, and the temperature of described forging pipe is 1300 ℃, and the beginning temperature of described tube rolling is that 1100 ℃, finishing temperature are 990 ℃, the cooling employing air cooling of described steel pipe.
Embodiment 2 is most preferred embodiment.
Although above-described embodiment describes in detail technical scheme of the present invention, but technical scheme of the present invention is not limited to above embodiment, in the situation that not departing from thought of the present invention and aim, any change that technical scheme of the present invention is done all will fall into claims limited range of the present invention.

Claims (6)

1. the steel tubes of a hydrogen sulfide corrosion-resistant, it is characterized in that chemical composition is as follows by weight percentage: carbon 0.18%-0.28%, silicon 0.12%-0.26%, manganese 0.8%-1.5%, chromium 0.95%-1.2%, molybdenum 0.62%-0.78%, titanium 0.01%-0.02%, phosphorus 0.008%-0.012%, sulphur 0.002%-0.004%, rhenium 0.06%-0.18%, nitrogen 0.002%-0.004%, aluminium 0.02%-0.05%, rare earth 0.2%-0.5%, nickel+vanadium+niobium 0.1%-0.28%, all the other are iron.
2. the steel tubes of a kind of hydrogen sulfide corrosion-resistant according to claim 1, is characterized in that, described rare earth is rare-earth elements of lanthanum.
3. prepare the method for the steel tubes of a kind of hydrogen sulfide corrosion-resistant as claimed in claim 1 or 2, comprise electrosmelting, ladle refining, steel ingot casting, steel ingot finishing, forging pipe, tube rolling, cooling, thermal treatment, thermospray step, it is characterized in that, described thermal treatment divides three steps to carry out: (1) carries out hot finished steel pipe the austenitizing processing of 980-1020 ℃, come out of the stove and be quenched to below 180 ℃, (2) steel pipe after the first quenching is carried out to 900-950 ℃ of secondary insulation and process, be quenched to below 180 ℃; (3) steel pipe after modified being carried out to the destressing that the straightening processing of 350-400 ℃ adds 720-870 ℃ processes.
4. the method for the steel tubes of a kind of hydrogen sulfide corrosion-resistant of preparation according to claim 3, it is characterized in that: the temperature of described smelting and casting is 1580-1620 ℃, the temperature of described forging pipe is 1300-1350 ℃, the beginning temperature of described tube rolling is that 1100-1180 ℃, finishing temperature are 990-1000 ℃, the cooling employing air cooling of described steel pipe.
5. the method for the steel tubes of a kind of hydrogen sulfide corrosion-resistant of preparation according to claim 3, is characterized in that: described thermal spraying treatment is the surface spraying one deck nickel base alloy layer at steel pipe.
6. the steel tubes of a kind of hydrogen sulfide corrosion-resistant according to claim 1, it is characterized in that chemical composition is as follows by weight percentage: carbon 0.25%, silicon 0.2%, manganese 1.2%, chromium 1.1%, molybdenum 0.7%, titanium 0.02%, phosphorus 0.01%, sulphur 0.003%, rhenium 0.12%, nitrogen 0.003%, aluminium 0.03%, rare earth 0.3%, nickel+vanadium+niobium 0.2%, all the other are iron.
CN201410307593.6A 2014-06-30 A kind of steel tubes of hydrogen sulfide corrosion-resistant and preparation method thereof Expired - Fee Related CN104087837B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105402413A (en) * 2015-11-26 2016-03-16 成都九十度工业产品设计有限公司 Compound gasket for engine
CN105402405A (en) * 2015-11-26 2016-03-16 成都九十度工业产品设计有限公司 Metal combination gasket
WO2017087024A1 (en) * 2015-11-18 2017-05-26 Zhu Yuanji Systems and methods for producing hardwearing and impact-resistant alloy steel

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Publication number Priority date Publication date Assignee Title
JP2005139485A (en) * 2003-11-05 2005-06-02 Nippon Steel Corp Steel sheet to be hot-formed
JP2008214753A (en) * 2007-02-09 2008-09-18 Nippon Steel Corp Ferritic heat resistant steel having excellent creep property in weld heat-affected zone, and heat resistant structure
CN101280352A (en) * 2008-05-21 2008-10-08 钢铁研究总院 High-safe high-precision producing method of thermoforming martensitic steel parts
CN102071363A (en) * 2011-02-25 2011-05-25 上海海隆石油管材研究所 Steel for drill pipe body suitable for arctic-alpine areas
JP4995122B2 (en) * 2007-03-02 2012-08-08 新日本製鐵株式会社 Ferritic heat-resistant steel and heat-resistant structure with excellent creep characteristics in weld heat-affected zone

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005139485A (en) * 2003-11-05 2005-06-02 Nippon Steel Corp Steel sheet to be hot-formed
JP2008214753A (en) * 2007-02-09 2008-09-18 Nippon Steel Corp Ferritic heat resistant steel having excellent creep property in weld heat-affected zone, and heat resistant structure
JP4995122B2 (en) * 2007-03-02 2012-08-08 新日本製鐵株式会社 Ferritic heat-resistant steel and heat-resistant structure with excellent creep characteristics in weld heat-affected zone
CN101280352A (en) * 2008-05-21 2008-10-08 钢铁研究总院 High-safe high-precision producing method of thermoforming martensitic steel parts
CN102071363A (en) * 2011-02-25 2011-05-25 上海海隆石油管材研究所 Steel for drill pipe body suitable for arctic-alpine areas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017087024A1 (en) * 2015-11-18 2017-05-26 Zhu Yuanji Systems and methods for producing hardwearing and impact-resistant alloy steel
CN105402413A (en) * 2015-11-26 2016-03-16 成都九十度工业产品设计有限公司 Compound gasket for engine
CN105402405A (en) * 2015-11-26 2016-03-16 成都九十度工业产品设计有限公司 Metal combination gasket

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