CN102492897A - Steel for lower plate of cargo oil tank of tanker - Google Patents
Steel for lower plate of cargo oil tank of tanker Download PDFInfo
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- CN102492897A CN102492897A CN2011104494736A CN201110449473A CN102492897A CN 102492897 A CN102492897 A CN 102492897A CN 2011104494736 A CN2011104494736 A CN 2011104494736A CN 201110449473 A CN201110449473 A CN 201110449473A CN 102492897 A CN102492897 A CN 102492897A
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Abstract
The invention provides steel for the lower plate of a cargo oil tankof a tanker, which belongs to the technical field of ship plate steel. The steel comprises, by mass, 0.01 to 0.3% of C, 0.02 to 2% of Si, 0.1 to 2.0% of Mn, no more than 0.01% of S, no more than 0. 02% of P, 0.05 to 2.0% of Ni, 0.05 to 2.0% of Cu, 0.005 to 1.0% of Cr, 0.0005 to 0.3% of Se, 0.0005 to 0.3% of Ge, with the balance being Fe; preferably, (Cu + Ni + Cr)/S is 200 to 480. The steel can also comprise one or more selected from the group consisting of 0.0005 to 0.3% of Sn, 0.0005 to 0.3% of Sb and 0.0005 to 0.3% of Te, and/or one or more selected from the group consisting of 0. 0005 to 0.3% of W, 0.0005 to 0.3% of Mo, 0.0005 to 0.3% of Co and 0.0005 to 0.3% of REM, and/or one or more selected from the group consisting of 0.0001 to 0.2% of Ca, 0.0001 to 0.2% of Mg, 0.0001 to 0.2% of Sr and 0.0001 to 0.2% of Ba. The steel has the advantages of excellent local corrosion resistance under the conditions of a high concentration of Cl<-> and a high acidity and effective prolongation of the service life of a steel plate when the steel plate is coated by a protective layer or is exposed.
Description
Technical field
The invention belongs to deck of boat steel technical field, particularly relate to a kind of oil tanker oil cargo tank lower shoe and use steel, the oil tanker oil cargo tank lower shoe that under coating protective layer or naked state, uses is used steel, can significantly improve at high density Cl
-, the anti-point-like local corrosion performance under the high acidity environment.
Background technology
In recent years, the incident of the petroleum pollution ocean environment that ship is brought takes place frequently, and the etching problem of the corrosion of oil tanker, especially oil cargo tank receives people's attention day by day.Oil cargo tank is the agent structure of carrying crude oil, and the protection of its base plate is the key of prevention crude oil leakage.Discovered more in recent years that in actual mammoth tanker oil cargo tank, serious tubercular corrosion appearred in lower shoe, most diameters are 10～30mm, dark 1～6mm, its propagation rate reaches 2～3mm/, serious threat the transportation safety of crude oil.
Through discovering, cause the factor of the serious local corrosion of oil cargo tank lower shoe following: a large amount of salt hydropexiss is arranged in the bottom of oil cargo tank, and according to one's analysis, this is detained Cl in the salt solution
-Concentration 5～30%.Simultaneously; Because dirt settlings such as corrosion product, sludge have destroyed the uniform state of surface of steel plate, lower shoe and these dirt settlings form local element, thereby in surface of steel plate generation local corrosion; The cationic hydrolysis of matrix metal causes PH sharply to be reduced to below 1.0, thereby at high density Cl
-Sour environment under point corrosion pit expand rapidly.Also have research to think, in the oil cargo tank bottom the sedimentary oil film of one deck is arranged, its insulativity is better, and base plate is had the certain protection effect, and still, washing of tanks has destroyed the continuity of oil film, and spot corrosion and expansion rapidly preferentially take place at discontinuous place.In addition, also have research to show H in the crude oil
2O in S and the anti-explosive gas
2, CO
2, SO
2All influential to the spot corrosion of base plate.
At present, the corrosion of mainly adopting the method for primer painting or metal spraying to alleviate base plate, still; Because oil cargo tank is bulky, adopt the method for application and spraying will inevitably bring the engineering time long, the problem that maintenance cost is high; And in the process of carrying out the protective layer construction; Can bring the microdefect on top layer equally, these microdefects can become the hidden danger of local corrosion on the contrary, and spot corrosion takes place and expansion inevitably.When protective layer is destroyed, the corrosion failure degree of steel plate with use not big difference too of naked steel, therefore, though the corrosion of adopting the method for application and spraying to alleviate steel plate, the corrosion, particularly localized corrosion problems that fundamentally do not solve base plate.
Summary of the invention
The object of the present invention is to provide a kind of oil tanker oil cargo tank lower shoe to use steel, solved the corrosion of above-mentioned base plate, particularly localized corrosion problems, it is at high density Cl
-, have excellent pitting resistance under the high acidity environment, and work-ing life that can the significant prolongation steel plate under coating protective layer or naked state, greatly reduce the maintenance cost of oil cargo tank, improved Transport Safety.
Composition of the present invention designs by percentage to the quality, and chemical ingredients is: C:0.01～0.3%, Si:0.02～2%, Mn:0.1～2.0%, S≤0.01%, P≤0.02, Ni:0.05～2.0%; Cu:0.05～2.0%, Cr:0.005～1.0%; Se:0.0005～0.3%, Ge:0.0005～0.3%, all the other are Fe.
Oil cargo tank lower shoe of the present invention is 200～480 with (Cu+Ni+Cr)/S in the steel.
Oil cargo tank lower shoe of the present invention also contains in Sn:0.0005～0.3%, Sb:0.0005～0.3%, Te:0.0005～0.3% one or more with steel by percentage to the quality in this steel.
Oil cargo tank lower shoe of the present invention with steel by percentage to the quality, also contain in this steel W:0.0005～0.3%, Mo:0.0005～0.3%, Co:0.0005～0.3%, REM:0.0005～0.3%, in one or more.
Oil cargo tank lower shoe of the present invention also contains in this steel with steel by percentage to the quality: one or more in Ca:0.0001～0.2%, Mg:0.0001～0.2%, Sr:0.0001～0.2%, Ba:0.0001～0.2%.
Oil cargo tank lower shoe of the present invention also contains in V:0.001～0.1%, Ti:0.005～0.2%, Nb:0.003～0.3%, B:0.0001%～0.05% one or more with steel by percentage to the quality in this steel.
For the chemical ingredients scope (by percentage to the quality) of steel among the present invention, explain as follows:
C is the effective element that improves steel strength.In order to obtain needed intensity, C content need still when its content surpasses 0.3%, can make the toughness of steel and weldableness reduce more than 0.01% among the present invention, and therefore, the scope of C is 0.01～0.3%.In order to take into account intensity and toughness simultaneously, the preferential scope of C is 0.02～0.2%.
Si is the deoxidant element that adopts usually, and can improve the intensity of steel.In order to ensure deoxidation effect and needed intensity, Si content need still when its content surpasses 2.0%, can cause the hot-rolled steel sheet firecoat to be difficult to peel off more than 0.02%, causes surface imperfection, thereby unfavorable to anti-local corrosion performance.Simultaneously, the Si too high levels can make the toughness and the weldableness variation of steel.Therefore, in order to guarantee the solidity to corrosion of hull steel, toughness and weldableness, pay the utmost attention to Si on be limited to 0.5%.
Mn is the element that improves hardness of steel, and in order to obtain needed intensity, Mn content need still when its content surpasses 2.0%, can make the toughness of steel and weldableness reduce more than 0.1% among the present invention, and therefore, the scope of Mn is 0.1～2.0%.For when guaranteeing intensity, suppress to make the inclusion of solidity to corrosion variation to form, be preferably 0.3～1.6% scope.
P is the impurity element in the steel, when P content in the steel surpasses 0.05%, can cause the aggravation of local corrosion speed, and can make the toughness and the weldableness variation of steel, so P on be limited to 0.02%.A small amount of P is favourable to the solidity to corrosion of steel, and preferred P content is 0.010%.
S is the inevitable harmful element that exists in the steel, can form the MnS inclusion, and as the starting point of local corrosion, and the existence of S can reduce the toughness and the weldableness of steel, and therefore, its content will reduce as much as possible.Particularly S content surpasses at 0.01% o'clock, can cause the impatient sharp fall of anti-local corrosion of steel low, so the content of S should be below 0.01%.In addition, when S content is lower than 0.002%, can cause the cost of steel to increase, therefore preferential select following is limited to 0.002%.
Cu is the necessary element that adds that improves the steel pitting resistance, and its surface at steel forms fine and close sulfide film, has hindered Cl
-Intrusion, thereby suppressed the expansion of spot corrosion.In order to reach the protection effect, Cu content should be higher than 0.05%.But, the hot workability of steel and weldableness are worsened when Cu content surpasses after 2.0%.Therefore the content range of Cu should be 0.05～2.0%.
Ni improves corrosion proof element, and common and Cu is used.In order to reach the protection effect, Ni content should be more than 0.05%.But after Ni content was above 2.0%, its effect reached capacity, and not only can bring the increase of cost, and the processing characteristics of steel and weldableness are worsened.Therefore the scope of Ni content should be 0.05～2.0%.
Cr is the element favourable to the steel solidity to corrosion, and it forms fine and close protective membrane on the steel surface, has hindered Cl
-Intrusion, thereby suppressed the expansion of spot corrosion.In order to reach the protection effect, the content of Cr should surpass after 1.0% but work as Cr content more than 0.005%, can make the processed-type and the weldableness variation of steel, so the scope of Cr content should be 0.005～1.0%.
Among the present invention, in order to satisfy solidity to corrosion, processibility simultaneously; Weldableness requires (Cu+Ni+Cr)/S to be higher than 200, after (Cu+Ni+Cr)/S surpasses 480; The processibility of steel and weldableness variation, and the increase that can bring cost, so (Cu+Ni+Cr)/area requirement of S satisfies 200～480.
Se and Ge are important elements of the present invention, can significantly improve the solidity to corrosion of steel in acidic medium, especially at acid Cl
-Under the corrosive environment, have excellent anti-spot corrosion effect, it forms compact protective film on the steel surface, passes through simultaneously to improve the surface of steel plate pH value, thereby has improved the pitting resistance of steel greatly.In addition, Se and Ge can also significantly improve the intergranular corrosion resistance effect of steel.For guaranteeing the corrosion prevention requirement under the oil cargo tank environment, require Se and Ge content to be greater than 0.0005%.But when Se, Ge content can make the processibility of steel and weldableness reduce greater than 0.3% the time, so Se, Ge content should be 0.0005～0.3%.
Sn, Sb, Te improve pitting corrosion resistance through the pH value that improves the spot corrosion position effectively, and form corresponding oxide compound on the surface of steel, cover the surface of steel densely, have suppressed corrosive and have carried out.Even above-mentioned effect also can reach at the content of impurity levels, but in order to obtain more significant additive effect, its content is more than 0.01%; But after content was above 0.3%, above-mentioned effect can reach capacity, so Sn; Sb, the content range of Te is 0.01～0.3%.
W, Mo, Co have significant effect to reducing the local corrosion propagation rate.In the corrosive process, form fine and close rusty scale, hindered Cl
-Intrusion, thereby suppressed the expansion of spot corrosion, the corrosion that has slowed down steel plate.W, Mo, Co content can reach above-mentioned effect 0.0005% when above, but surpass at 0.3% o'clock, the anti-local corrosion performance of steel is reduced, and increased cost.Therefore its composition range is 0.0005～0.3%.
Ca, Mg, Sr, the Ba solidity to corrosion to steel are favourable, and it is water-soluble and become alkali when corrosion reaction, thereby has suppressed the decline of steel surface pH value, has significantly improved the anti-local corrosion property of steel.In addition, these elements can also carry out modification to the pernicious sulfide inclusion in the steel to be handled, and further improves anti-local corrosion performance.Therefore in order to reach the protection effect, Ca, Mg, Sr, Ba content should be more than 0.0005%, but content surpasses after 0.2%, can make the processed-type and the weldableness variation of steel, so its content range should be 0.0005～0.2%.
REM can control the form of inclusion effectively, and is favourable to the anti-local corrosion property that improves steel.In addition, REM can improve the ductility and the toughness of steel through the control inclusion morphology.Select for use rare-earth elements La and/or Ce as adding element among the present invention, its content is 0.0005～0.3%.
V, Nb, Ti are main microalloy elements, can intensity as required select to contain.Wherein V, Nb are the effective elements that improves hardness of steel, this effect through V content 0.01% or more, Nb content obtaining 0.003% or more, if but V content above 0.1%, Nb content is above 0.3%, then the toughness of steel will worsen; Ti also helps the weldableness of improving steel except the intensity that improves steel, preferentially selecting its scope is 0.005～0.2%.
B is the element that adds for the intensity that improves steel equally.In addition, B can also significantly improve the hardening capacity of steel plate.In order to obtain above-mentioned effect, the content requirement of B is more than 0.0001%, but B content is higher than at 0.05% o'clock, and superfluous B can make the toughness of steel worsen.Therefore the composition range of B is 0.0001%～0.05%.
Adopt steel of the present invention, can significantly improve steel plate at high density Cl
-, the anti-local corrosion performance under the high acidity environment.Main interpolation through alloying element; Suppress the reduction of steel pH value in corrosive medium; And form compact protective film on the surface, thus suppress the generation and the expansion of local corrosion, prolonged the work-ing life of steel plate under coating protective layer or naked state effectively; Reduce the maintenance cost of oil cargo tank base plate significantly, and guaranteed the security of carried of crude oil.
Description of drawings
Fig. 1 is simulation oil cargo tank spot corrosion method synoptic diagram.Wherein, gas gets into conduit 1, gas to discharge conduit 2, sample 3, real shipload cargo tank base plate greasy filth 4, massfraction is 10% the NaCl aqueous solution 5, thermostat water bath 6, the exposed aperture 7 that presets
2mm.
Specific embodiments
The test steel forms through vacuum induction furnace smelting; The chemical ingredients of 10 stove steel is as shown in table 1, and steel ingot is forged into the thick steel billet of 80mm, and steel billet is heated to 1150 ℃ and be incubated 2 hours; Be rolled into the thick steel plate of 16mm then; The finishing temperature of test steel is controlled to be 800 ℃, and the speed of cooling water spray with 10 ℃/s after finish to gauge finishes is cooled to 550 ℃, subsequently air cooling.
Table 2 is the mechanical property of above-mentioned various steel, comprises intensity and toughness.
Embodiment of the present invention comprises two aspects: simulation oil cargo tank spot corrosion method and laboratory hanging test
Embodiment 1 (simulation oil cargo tank spot corrosion method)
Fig. 1 is the spot corrosion of simulation oil cargo tank lower shoe.To each 3 on the square sample of above-mentioned each steel grade 40mm (length) * 40mm (wide) * 15mm (thick), test face is polished to 600#, clean with alcohol, acetone.40mm * 40mm face to sample makes an experiment; Earlier non-test face is coated with envelope with epoxy resin; Only on test face, evenly be coated with the greasy filth of actual oil carrier oil cargo tank bottom, and reserve 4 φ 2mm apertures exposed (seeing 7 positions among Fig. 1), with the starting point of simulation local corrosion.
During test; Sample is placed reaction container bottom according to the method among Fig. 1; In container 5, inject a certain amount of 10% the NaCl aqueous solution; And the water temperature in the thermostat water bath 6 is set at 40 ℃, and in conduit 1, following two kinds of gases were mixed by 1: 1 and feed (in volume percent): A gas: 8%O
2+ 26%CO
2+ 200ppmSO
2+ residue N
2B gas: 1000ppm H
2S+ remains N
2Test period is 30 days.After the off-test, remove the rusty scale of specimen surface, the degree of depth of measure local corrosion location.The test-results of above-mentioned test is as shown in table 3.
Embodiment 2 (laboratory lacing film)
This test is a laboratory accelerated corrosion hanging test, to simulate the steel surface at high density Cl
-, the spreading rate of local corrosion takes place down in high acidity environment.To each 5 on the square sample of above-mentioned each steel grade 50mm (length) * 25mm (wide) * 5mm (thick); Each face of sample is polished to 600#; After alcohol and acetone; Measure the size and the weight of sample, two 50mm * 25mm face of sample is made an experiment, other non-test faces seal with epoxy resin.Testing liquid is the 10%NaCl aqueous solution, with HCl pH value is adjusted to 0.6, and test temperature is 40 ℃, and soak time is 72 hours.After the off-test, remove corrosion product, measure corrosion weight loss, estimate erosion rate.Test-results is seen table 3.
Table 2. the present invention example and comparative example test steel mechanical property
Annotate 1): all samples are steel plate and laterally take a sample, and the sample position is at thickness of slab 1/4 place.
Annotate 2): tension test is according to GB/T 228-2002.
Annotate 3): shock test is according to GB/T 229-1994.
Table 3. corrosion test data
According to the present invention; Can be provided under the crude oil oil cargo tank lower shoe corrosive environment; Demonstrate the steel of excellent in resistance local corrosion performance, suppressed the generation and the expansion of point corrosion pit effectively, prolonged the work-ing life of steel plate; Practice thrift the maintenance cost of oil cargo tank base plate, improved the security of carried of crude oil.
Claims (6)
1. an oil tanker oil cargo tank lower shoe is used steel; It is characterized in that; Chemical ingredients is by percentage to the quality: C:0.01～0.3%, Si:0.02～2%, Mn:0.1～2.0%, S≤0.01%, P≤0.02, Ni:0.05～2.0%; Cu:0.05～2.0%, Cr:0.005～1.0%, Se:0.0005～0.3%, Ge:0.0005～0.3%, all the other are Fe.
2. lower shoe according to claim 1 is used steel, it is characterized in that: this oil cargo tank lower shoe is 200～480 with (Cu+Ni+Cr)/S in the steel.
3. lower shoe according to claim 1 is used steel, it is characterized in that, counts by percentage to the quality, also contains in Sn:0.0005～0.3%, Sb:0.0005～0.3%, Te:0.0005～0.3% one or more in this steel.
4. lower shoe according to claim 1 is used steel; It is characterized in that; Meter also contains in W:0.0005～0.3%, Mo:0.0005～0.3%, Co:0.0005～0.3%, REM:0.0005～0.3% one or more by percentage to the quality in this steel.
5. lower shoe according to claim 1 is used steel; It is characterized in that; Meter also contains in this steel: one or more in Ca:0.0001～0.2%, Mg:0.0001～0.2%, Sr:0.0001～0.2%, Ba:0.0001～0.2% by percentage to the quality.
6. lower shoe according to claim 1 is used steel; It is characterized in that; Meter by percentage to the quality, also contain in this steel V:0.001～0.1%, Ti:0.005～0.2%, Nb:0.003～0.3%, B:0.0001%～0.05%, in one or more.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000017334A (en) * | 1998-07-06 | 2000-01-18 | Kawasaki Steel Corp | Production of grain-oriented and nonoriented silicon steel sheet having low core loss and high magnetic flux density and continuous annealing equipment |
| JP2000109931A (en) * | 1998-10-01 | 2000-04-18 | Kawasaki Steel Corp | Production of high magnetic flux density grain oriented silicon steel sheet extremely low in core loss |
| CN101218362A (en) * | 2005-07-07 | 2008-07-09 | 住友金属工业株式会社 | Non-oriented electromagnetic steel sheet and its manufacturing method |
| CN101525729A (en) * | 2008-03-04 | 2009-09-09 | 株式会社神户制钢所 | Steels for marine with good corrosion resistance |
| CN101928886A (en) * | 2010-07-15 | 2010-12-29 | 南京钢铁股份有限公司 | Corrosion resistant steel for cargo oil tanks and application thereof |
-
2011
- 2011-12-29 CN CN2011104494736A patent/CN102492897A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000017334A (en) * | 1998-07-06 | 2000-01-18 | Kawasaki Steel Corp | Production of grain-oriented and nonoriented silicon steel sheet having low core loss and high magnetic flux density and continuous annealing equipment |
| JP2000109931A (en) * | 1998-10-01 | 2000-04-18 | Kawasaki Steel Corp | Production of high magnetic flux density grain oriented silicon steel sheet extremely low in core loss |
| CN101218362A (en) * | 2005-07-07 | 2008-07-09 | 住友金属工业株式会社 | Non-oriented electromagnetic steel sheet and its manufacturing method |
| CN101525729A (en) * | 2008-03-04 | 2009-09-09 | 株式会社神户制钢所 | Steels for marine with good corrosion resistance |
| CN101928886A (en) * | 2010-07-15 | 2010-12-29 | 南京钢铁股份有限公司 | Corrosion resistant steel for cargo oil tanks and application thereof |
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| CN106399828A (en) * | 2016-10-11 | 2017-02-15 | 安徽卡塔门窗有限公司 | High-strength alloy steel for door frame and preparing method thereof |
| CN106756472A (en) * | 2016-11-23 | 2017-05-31 | 李光根 | A kind of accessory peculiar to vessel and its manufacture method |
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| CN112680675A (en) * | 2020-12-08 | 2021-04-20 | 莱芜钢铁集团淄博锚链有限公司 | Boron-containing steel and preparation method thereof |
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Application publication date: 20120613 |