WO2017169377A1 - フェライト系ステンレス鋼板 - Google Patents

フェライト系ステンレス鋼板 Download PDF

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WO2017169377A1
WO2017169377A1 PCT/JP2017/006973 JP2017006973W WO2017169377A1 WO 2017169377 A1 WO2017169377 A1 WO 2017169377A1 JP 2017006973 W JP2017006973 W JP 2017006973W WO 2017169377 A1 WO2017169377 A1 WO 2017169377A1
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stainless steel
ferritic stainless
steel sheet
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PCT/JP2017/006973
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English (en)
French (fr)
Japanese (ja)
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修司 西田
知洋 石井
光幸 藤澤
力 上
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Ｊｆｅスチール株式会社
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Application filed by Ｊｆｅスチール株式会社 filed Critical Ｊｆｅスチール株式会社
Priority to JP2017529096A priority Critical patent/JP6206624B1/ja
Priority to CN201780020205.8A priority patent/CN109072373A/zh
Priority to KR1020187027205A priority patent/KR102113416B1/ko
Priority to ES17773922T priority patent/ES2922626T3/es
Priority to US16/087,486 priority patent/US20190106775A1/en
Priority to EP17773922.4A priority patent/EP3438310B1/en
Publication of WO2017169377A1 publication Critical patent/WO2017169377A1/ja

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Definitions

  • the present invention relates to a ferritic stainless steel sheet. Furthermore, the present invention relates to a ferritic stainless steel sheet that is excellent in weld penetration and that is difficult to peel off the black spot of the weld bead during bending.
  • Ferritic stainless steel sheets are cheaper and have better price stability than austenitic stainless steel sheets containing a lot of Ni. Furthermore, since ferritic stainless steel plates are excellent in resistance to rusting, they are used in various applications such as building materials, transportation equipment, home appliances, and kitchen equipment.
  • Ti stabilized ferritic stainless steel sheet containing Ti as a stabilizing element. It contains Ti and produces Ti carbonitrides in the steel, reduces solute C and N, and promotes the development of ⁇ 111 ⁇ recrystallized texture, which is excellent in workability. Steel plate.
  • Ti-stabilized ferritic stainless steel sheets tend to generate oxides called black spots on the weld bead even when sufficient gas shielding is performed during TIG welding (Tungsten Inert Gas welding).
  • Patent Document 1 discloses a ferritic stainless steel in which the BI value (3Al + Ti + 0.5Si + 200Ca) of the steel composition satisfies 0.8 or less as a ferritic stainless steel with little black spot generation.
  • Patent Document 2 discloses a ferritic stainless steel that satisfies the above-described BI value of 0.8 or less as a ferritic stainless steel with less black spot generation.
  • Ti-stabilized ferritic stainless steel sheets as described above have been widely used in household appliances for the purpose of reducing costs.
  • the Ti-stabilized ferritic stainless steel sheet may be applied to a portion exposed to a severe corrosive environment after bending the welded portion. Therefore, there is a need for a Ti-stabilized stainless steel plate that hardly causes crevice corrosion due to black spot peeling even when the weld bead is bent.
  • An object of the present invention is to provide a ferritic stainless steel plate in which black spots of TIG welds are difficult to peel off during bending.
  • the inventors of the present invention have made a comprehensive study on the above-described problems in order to suppress peeling at the time of black spot bending.
  • the O (oxygen) content is set to a certain value or less
  • the PBI value represented by “(7Al + 2Ti + Si + 10Zr + 130Ca) ⁇ O (oxygen) ⁇ 1000” is a steel composition having a certain value or less
  • the black spot moves while being coarsened on the weld bead so as to be dragged by the electrode during TIG welding, and is fixed to the weld bead when it becomes coarser than a certain level. If there are few elements and oxygen with high affinity with oxygen in a ferritic stainless steel plate, the surface tension of the molten pool formed at the time of TIG welding will fall, so that temperature becomes high. As a result, a strong flow is formed on the surface of the weld pool from the center of the weld bead having a high temperature toward the saddle of the weld bead having a low temperature. This strong flow activates outward Marangoni convection. As a result, the black spot is fixed to the bead wrinkle in a state where it is not relatively coarse. Thereby, each black spot becomes thin and small, and peeling hardly occurs during bending.
  • the present invention was completed through further studies based on the above findings.
  • the summary composition is as follows.
  • B 0.0003 to 0.0030%
  • Mg 0.0005 to 0.0100%
  • Y 0.001 to 0.20%
  • REM rare earth metal
  • the ferritic stainless steel sheet of the present invention is excellent in weld penetration of the weld bead and excellent in corrosion resistance including the bent portion.
  • 3 is a diagram illustrating an appearance of a generated black spot.
  • the ferritic stainless steel sheet of the present invention satisfies the following formula (1).
  • PBI (7Al + 2Ti + Si + 10Zr + 130Ca) ⁇ O (oxygen) ⁇ 1000
  • Al, Ti, Ti, Si, Zr, Ca, and O (oxygen) in the formula (1) are the content [% by mass] of each component in the ferritic stainless steel sheet, and the elements not contained are 0.
  • Al, Ti, Si, Zr, and Ca are elements that have a particularly strong affinity with oxygen and are likely to be oxides. When the product of the amount of these elements and the amount of oxygen is large, the black spot is likely to be peeled off during bending.
  • the coefficients of Al, Ti, Si, Zr, and Ca in the above equation (1) are determined based on the magnitude of the effect on the weld penetration of the weld bead and the effect of causing black spot peeling during bending. Has been.
  • the PBI value exceeds 20.0, the black spot peels off during bending.
  • the PBI value is set to 20.0 or less.
  • the PBI value is 5.0 or less, it is possible to more effectively suppress black spot peeling during bending.
  • the PBI value is 0.5 or more.
  • the PBI value is 1.5 or more, the weld penetration of the weld bead is excellent.
  • the PBI value is 1.5 or more, the black spot peeling is better suppressed during the bending process than when the PBI value is less than 1.5.
  • the PBI value is more preferably 1.5 or more and 5.0 or less.
  • % which shows the component of steel means the mass% unless there is particular notice.
  • C 0.020% or less C is an element effective for increasing the strength of steel. Therefore, the C content is preferably 0.001% or more. On the other hand, when the C content exceeds 0.020%, the corrosion resistance and workability are significantly lowered. Therefore, the C content is 0.020% or less. The C content is preferably 0.015% or less, more preferably 0.010% or less.
  • Si 0.05 to 0.50% Si is an element useful as a deoxidizer. This effect can be obtained by setting the Si content to 0.05% or more.
  • the Si content is preferably 0.08% or more. If the Si content exceeds 0.50%, the steel becomes hard and the workability decreases. Even in the composition satisfying the formula (1), black spots generated in TIG welding of a ferritic stainless steel sheet are likely to be peeled off during bending, and the peeled portion may be a starting point for crevice corrosion. Therefore, the Si content is 0.50% or less.
  • the Si content is preferably 0.30% or less, and more preferably 0.15% or less.
  • Mn 0.05 to 0.50% Mn has a deoxidizing action. This effect can be obtained by setting the Mn content to 0.05% or more.
  • the Mn content is preferably 0.10% or more, more preferably 0.15% or more, and further preferably 0.17% or more. If the Mn content exceeds 0.50%, precipitation and coarsening of MnS are promoted, resulting in a decrease in corrosion resistance. Therefore, the Mn content is 0.50% or less.
  • the Mn content is preferably less than 0.30%, more preferably 0.20% or less.
  • P 0.040% or less
  • P is an element that lowers corrosion resistance. Moreover, P reduces hot workability by segregating at the grain boundaries. Therefore, the P content is desirably as low as possible, and is set to 0.040% or less. The P content is preferably 0.030% or less. In addition, the minimum of P content is not prescribed
  • S 0.030% or less S forms Mn and precipitate MnS. This MnS becomes a starting point of corrosion and causes a decrease in corrosion resistance. Therefore, the lower S content is desirable, and it is 0.030% or less.
  • the S content is preferably 0.020% or less.
  • the S content is more preferably 0.010% or less, and still more preferably 0.005% or less.
  • the minimum of S content is not prescribed
  • Al is an element effective for deoxidation. This effect is obtained when the Al content is 0.001% or more.
  • the Al content is preferably 0.005% or more, and more preferably 0.010% or more. If the Al content exceeds 0.150%, generation of a surface scale on the slab having a lubricating effect during hot rolling is suppressed, surface defects are likely to be generated, and productivity is reduced. Further, when the Al content exceeds 0.150%, even in the composition satisfying the formula (1), the black spots generated in the TIG welding of the steel sheet are easily peeled during bending, and the peeled portion is crevice corrosion. May be the starting point. Therefore, the Al content is 0.150% or less.
  • the Al content is preferably 0.100% or less, and more preferably 0.050% or less.
  • Cr 18.0-25.0%
  • Cr is an element that increases the corrosion resistance by forming a passive film on the surface. If the Cr content is less than 18.0%, sufficient corrosion resistance cannot be obtained. Therefore, the Cr content is 18.0 or more, preferably 20.0% or more, and more preferably 20.5% or more. If the Cr content exceeds 25.0%, the toughness tends to decrease due to the influence of the ⁇ phase and 475 ° C brittleness. Therefore, the Cr content is 25.0% or less. The Cr content is preferably 23.0% or less, and more preferably 21.5% or less.
  • Ti 0.01 to 0.50% Ti is an element effective for deoxidation. Ti is an element that fixes C and N, suppresses the formation of Cr carbonitride and a Cr-free layer, prevents sensitization, and improves corrosion resistance. Furthermore, Ti improves workability by promoting the development of ⁇ 111 ⁇ recrystallized texture. This effect is obtained when the Ti content is 0.01% or more.
  • the Ti content is preferably 0.05% or more, more preferably 0.20% or more. If the Ti content exceeds 0.50%, the ferritic stainless steel sheet becomes hard, bending workability is lowered, and TiN becomes a starting point of corrosion, thereby lowering the corrosion resistance.
  • the Ti content exceeds 0.50%, even in the composition satisfying the formula (1), the black spots generated in the TIG welding of the steel sheet are easily peeled during bending, and the peeled portion is crevice corrosion. May be the starting point. Accordingly, the Ti content is 0.50% or less.
  • the Ti content is preferably 0.40% or less, more preferably 0.30% or less.
  • Ca 0.0001 to 0.0015%
  • Ca is an element effective for deoxidation. This effect is obtained when the Ca content is 0.0001% or more.
  • the Ca content is preferably 0.0002% or more, more preferably 0.0003% or more.
  • the Ca content is 0.0015% or less.
  • the Ca content is preferably 0.0010% or less, and more preferably 0.0005% or less.
  • O (oxygen) is an element that improves weld penetration in the thickness direction of the weld bead in TIG welding. This effect is obtained when the O (oxygen) content is 0.0015% or more.
  • the O (oxygen) content is preferably 0.0020% or more, more preferably 0.0025% or more.
  • O (oxygen) is contained in excess of 0.0040%, even in a composition satisfying the formula (1), black spots generated in TIG welding of a steel sheet are easily peeled off during bending, and the peeled portion May be the starting point of crevice corrosion. Therefore, the O (oxygen) content is set to 0.0040% or less.
  • the O (oxygen) content is preferably 0.0035% or less, more preferably 0.0030% or less.
  • N 0.025% or less
  • the N content is 0.025% or less.
  • N is preferably reduced as much as possible, and the N content is preferably 0.020% or less, more preferably 0.015% or less.
  • the lower limit of N content is not specified in particular.
  • Zr 0.01 to 0.80% Zr, like Ti, is an element effective for deoxidation.
  • Zr is an element that fixes C and N, suppresses the formation of Cr carbonitride and a Cr-free layer, prevents sensitization, and improves corrosion resistance.
  • the Zr content is preferably 0.01% or more.
  • the Zr content is more preferably 0.02% or more, and further preferably 0.03% or more.
  • the ferritic stainless steel sheet may be hardened and the bending workability may be reduced.
  • the Zr content exceeds 0.80%, even in the composition satisfying the formula (1), the black spots generated in the TIG welding of the steel sheet are easily peeled at the time of bending, which becomes a starting point for crevice corrosion. There is a case. Therefore, the Zr content is 0.80% or less.
  • the Zr content is more preferably 0.30% or less, and still more preferably 0.10% or less.
  • Nb 0.01% or more and less than 0.40%
  • Nb is an element that fixes C and N, suppresses the formation of Cr carbonitride and a Cr-free layer, prevents sensitization, and improves corrosion resistance.
  • the Nb content is preferably 0.01% or more.
  • the Nb content is more preferably 0.03% or more, still more preferably 0.05% or more. If the Nb content is 0.40% or more, the ferritic stainless steel sheet may be hardened and the workability may be lowered, and further, the recrystallization temperature is increased and the productivity is lowered. Therefore, the Nb content is preferably less than 0.40%.
  • the Nb content is more preferably 0.30% or less, and further preferably 0.15% or less.
  • V 0.01 to 0.50%
  • V is an element that improves the crevice corrosion resistance of the ferritic stainless steel sheet.
  • the V content is preferably 0.01% or more.
  • the V content is more preferably 0.03% or more, and even more preferably 0.05% or more. If the V content exceeds 0.50%, workability may be reduced. Therefore, the V content is preferably 0.50% or less.
  • the V content is more preferably 0.30% or less, and still more preferably 0.10% or less.
  • Cu 0.30 to 0.80%
  • Cu is an element that strengthens the passive film and improves the corrosion resistance.
  • the Cu content is preferably 0.30 to 0.80%.
  • the lower limit side is more preferably 0.35% or more, and further preferably 0.40% or more.
  • the upper limit side is more preferably 0.50% or less, and further preferably 0.45% or less.
  • Ni 0.01-2.50%
  • Ni is an element that suppresses the anodic reaction due to acid and enables the passive state to be maintained even at a lower pH. That is, Ni is highly effective in improving crevice corrosion resistance, and significantly suppresses the progress of corrosion in the state of active dissolution, thereby improving the corrosion resistance. From the viewpoint of obtaining this effect, the Ni content is preferably 0.01% or more. The Ni content is more preferably 0.05% or more, and further preferably 0.10% or more. If the Ni content exceeds 2.50%, hydrogen embrittlement cracks are likely to occur in the processed part. Therefore, the Ni content is preferably 2.50% or less. The Ni content is more preferably 0.80% or less, and even more preferably 0.25% or less.
  • Co 0.01 to 0.50%
  • Co is an element that improves the crevice corrosion resistance of ferritic stainless steel. From the viewpoint of obtaining this effect, the Co content is preferably 0.01% or more.
  • the Co content is more preferably 0.10% or more. If the Co content exceeds 0.50%, workability may be reduced. Therefore, the Co content is preferably 0.50% or less.
  • the Co content is more preferably 0.30% or less, and still more preferably 0.15% or less.
  • Mo 0.01-2.00% Mo has the effect of improving the crevice corrosion resistance of the ferritic stainless steel sheet. From the viewpoint of obtaining this effect, the Mo content is preferably 0.01% or more. The Mo content is more preferably 0.10 or more, and further preferably 0.30% or more. If the Mo content exceeds 2.00%, a coarse intermetallic compound may be generated and the toughness may be reduced. Therefore, the Mo content is preferably 2.00% or less. The Mo content is more preferably 1.00% or less, and even more preferably 0.60% or less.
  • W 0.01 to 0.50% W is an element that improves the crevice corrosion resistance of the ferritic stainless steel sheet. From the viewpoint of obtaining this effect, the W content is preferably 0.01% or more. The W content is more preferably 0.10% or more. If the W content exceeds 0.50%, workability may be reduced. Therefore, the W content is preferably 0.50% or less. The W content is more preferably 0.30% or less.
  • B 0.0003 to 0.0030%
  • B is an element that improves hot workability and secondary workability, and it is known that B addition to Ti-added steel is effective. From the viewpoint of obtaining this effect, the B content is preferably 0.0003% or more. The B content is more preferably 0.0010% or more. If the B content exceeds 0.0030%, the toughness may decrease. Therefore, the B content is preferably 0.0030% or less. The B content is more preferably 0.0025% or less.
  • Mg 0.0005 to 0.0100% Mg forms Mg oxide together with Al in molten steel and acts as a deoxidizer. From the viewpoint of obtaining this effect, the Mg content is preferably 0.0005% or more. The Mg content is more preferably 0.0010% or more. If the Mg content exceeds 0.0100%, the toughness of the steel is lowered and the productivity may be lowered. Therefore, the Mg content is preferably 0.0100% or less. The Mg content is more preferably 0.0050% or less, and still more preferably 0.0030% or less.
  • Y 0.001 to 0.20%
  • Y is an element that suppresses the decrease in viscosity of the molten steel and improves the cleanliness of the molten steel. From the viewpoint of obtaining this effect, the Y content is preferably 0.001% or more. If the Y content exceeds 0.20%, workability may be reduced. Therefore, the Y content is preferably 0.20% or less. The Y content is more preferably 0.10% or less.
  • REM rare earth metal
  • REM rare earth metal: elements having atomic numbers 57 to 71 such as La, Ce, and Nd
  • the REM content is preferably 0.001% or more.
  • the REM content is more preferably 0.005% or more. If the REM content exceeds 0.10%, surface defects may occur during hot rolling. Therefore, the REM content is preferably 0.10% or less.
  • the REM content is more preferably 0.05% or less.
  • Sn 0.01 to 0.50% Sn is effective for suppressing roughening of the processed skin by promoting the generation of deformation bands during rolling. From the viewpoint of obtaining this effect, the Sn content is preferably 0.01% or more. The Sn content is more preferably 0.03% or more. If the Sn content exceeds 0.50%, the workability may decrease. Therefore, the Sn content is preferably 0.50% or less. The Sn content is more preferably 0.20% or less.
  • Sb 0.01 to 0.50% Similar to Sn, Sb is effective for suppressing roughening of the processed skin by promoting the generation of deformation bands during rolling. From the viewpoint of obtaining this effect, the Sb content is preferably 0.01% or more. The Sb content is more preferably 0.03% or more. If the Sb content exceeds 0.50%, the workability may decrease. Therefore, the Sb content is preferably 0.50% or less. The Sb content is more preferably 0.20% or less.
  • the balance other than the above components is Fe and inevitable impurities.
  • the steel having the above component composition is melted by a known method such as a converter, electric furnace, vacuum melting furnace or the like, and further subjected to secondary refining by a VOD (Vacuum Oxygen Decarburization) method or the like to control the oxygen concentration. .
  • a steel material (slab) is obtained by a continuous casting method or an ingot-bundling method.
  • the steel material is heated to 1000 ° C. to 1200 ° C., and then hot-rolled to a plate thickness of 2.0 mm to 5.0 mm under a finishing temperature of 700 ° C. to 1000 ° C.
  • the hot-rolled sheet thus produced is annealed at a temperature of 850 ° C. to 1100 ° C. and pickled, and then cold-rolled and cold-rolled sheet is annealed at a temperature of 800 ° C. to 1000 ° C.
  • pickling is performed to remove scale. Skin pass rolling may be performed on the cold-rolled sheet from which the scale has been removed.
  • the ferritic stainless steel sheet of the present invention is effective not only for the cold rolled sheet product as described above but also for a hot rolled sheet product. Moreover, the ferritic stainless steel sheet of the present invention is suitable for bending. Furthermore, the ferritic stainless steel sheet of the present invention is also suitable for applications in which a weld is bent.
  • the welding method for forming the weld is not particularly limited, and the weld is preferably formed by TIG welding.
  • a ferritic stainless steel having the composition shown in Tables 1 to 5 (the balance is Fe and inevitable impurities) is melted in a 100 kg steel ingot, heated to 1200 ° C. and hot-rolled to obtain a thickness of 3 A hot-rolled sheet of 0.0 mm was obtained. Then, after performing annealing at 1050 ° C. and pickling by a normal method, cold rolling to a plate thickness of 1.0 mm, further annealing at 900 ° C., pickling by a normal method was performed. .
  • the obtained cold-rolled annealed plate was cut into a size of 35 mm ⁇ 200 mm, both surfaces were dry-polished with # 600 emery paper, and then the end surface was processed smoothly to obtain a test piece.
  • I-shaped groove TIG welding was implemented and the welding member was produced.
  • TIG welding conditions were a welding current of 70 A, a welding voltage of 11 V, and a welding speed of 40 cm / min.
  • Argon was used as the shielding gas, and the torch side was 15 L / min and the back side was 10 L / min.
  • the bead width between the front bead and the back bead was measured for the weld member.
  • the value obtained by dividing the bead width of the front bead by the bead width of the back bead was 2 or less, “ ⁇ ” (pass: excellent), 2 Those larger than 3 were evaluated as “ ⁇ ” (passed), and those larger than 3 were evaluated as “ ⁇ ” (failed).
  • the evaluation results are shown in Tables 1 to 5 “Welability”.
  • the results obtained are shown in Tables 1-5.
  • the invention examples pass all of “peeling during processing”, “corrosion resistance” and “weldability”. Further, among the inventive examples, those having a PBI value of 1.5 or more and 5.0 or less are evaluated for peeling during processing of the black spot, corrosion resistance after bending of the black spot generating portion, and in the thickness direction of the weld bead.
  • the weld penetration properties are both excellent and good. That is, it can be seen that the black spot does not peel off during bending of the weld bead and has excellent corrosion resistance, and further the weld bead is likely to be melted.
  • Test No. In the comparative examples 116, 118, 120 to 123, and 127, the content of Al, Ti, Si, Ca, O, and Zr is higher than the range of the present invention. The corrosion resistance of is poor.
  • the ferritic stainless steel sheet of the present invention is excellent in weld penetration of the weld bead, and black spots generated during welding are difficult to peel off during bending, and crevice corrosion due to black spot peeling is unlikely to occur.
  • the ferritic stainless steel sheet of the present invention is suitable for containers, containers, kitchen equipment, building interior / exterior materials, automobile parts, escalators, railway vehicles, electrical equipment casing outer plates and the like.

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PCT/JP2017/006973 2016-03-29 2017-02-24 フェライト系ステンレス鋼板 WO2017169377A1 (ja)

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JP2017529096A JP6206624B1 (ja) 2016-03-29 2017-02-24 フェライト系ステンレス鋼板
CN201780020205.8A CN109072373A (zh) 2016-03-29 2017-02-24 铁素体类不锈钢板
KR1020187027205A KR102113416B1 (ko) 2016-03-29 2017-02-24 페라이트계 스테인리스 강판
ES17773922T ES2922626T3 (es) 2016-03-29 2017-02-24 Chapa de acero inoxidable ferrítico utilizada para soldadura TIG
US16/087,486 US20190106775A1 (en) 2016-03-29 2017-02-24 Ferritic stainless steel sheet
EP17773922.4A EP3438310B1 (en) 2016-03-29 2017-02-24 Ferritic stainless steel sheet used for tig welding

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020164924A (ja) * 2019-03-29 2020-10-08 日鉄ステンレス株式会社 高純度フェライト系ステンレス鋼及び高純度フェライト系ステンレス鋼鋳片

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2018009591A (es) 2016-02-08 2018-09-11 Jfe Steel Corp Tubo de acero inoxidable sin soldadura de alta resistencia para articulos tubulares para la industria del petroleo y metodo de fabricacion de tubo de acero inoxidable sin soldadura de alta resistencia.
WO2018043310A1 (ja) * 2016-09-02 2018-03-08 Ｊｆｅスチール株式会社 フェライト系ステンレス鋼
KR102234326B1 (ko) 2016-09-02 2021-03-30 제이에프이 스틸 가부시키가이샤 페라이트계 스테인리스강
CN110088324A (zh) * 2016-12-21 2019-08-02 杰富意钢铁株式会社 铁素体系不锈钢
BR112019013803A2 (pt) 2017-01-13 2020-01-21 Jfe Steel Corp tubo de aço inoxidável sem costura de alta resistência e método de produção do mesmo
WO2018155041A1 (ja) 2017-02-24 2018-08-30 Ｊｆｅスチール株式会社 油井用高強度ステンレス継目無鋼管およびその製造方法
WO2018179456A1 (ja) 2017-03-30 2018-10-04 Ｊｆｅスチール株式会社 フェライト系ステンレス鋼
JP6517371B2 (ja) * 2017-05-26 2019-05-22 Ｊｆｅスチール株式会社 フェライト系ステンレス鋼
CN109913758B (zh) * 2019-03-29 2020-08-11 东北大学 高温强度和成形性能良好的铁素体不锈钢板及其制备方法
CN110527895B (zh) * 2019-08-28 2022-03-15 嘉诚(厦门)工业有限公司 一种不锈钢材料及其制备方法和应用

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000144342A (ja) * 1998-01-30 2000-05-26 Sumitomo Metal Ind Ltd 成形性に優れたフェライト系ステンレス鋼及びフェライト系ステンレス鋼鋳片
JP2004169150A (ja) * 2002-11-21 2004-06-17 Jfe Steel Kk 耐リジング性に優れたＴｉ含有高加工性フェライト系クロム鋼板およびその製造方法
JP2004204252A (ja) * 2002-12-24 2004-07-22 Jfe Steel Kk 耐リジング性に優れたＴｉ含有高加工性フェライト系クロム鋼板およびその製造方法
JP2012036444A (ja) * 2010-08-06 2012-02-23 Nippon Steel & Sumikin Stainless Steel Corp ブラックスポットの生成の少ないフェライト系ステンレス鋼
JP2013166989A (ja) * 2012-02-15 2013-08-29 Nippon Steel & Sumikin Stainless Steel Corp 溶接管構造高温機器用オーステナイト系ステンレス鋼
JP2013209688A (ja) * 2012-03-30 2013-10-10 Nippon Steel & Sumikin Stainless Steel Corp 二相ステンレス鋼を合わせ材とするクラッド鋼板およびその製造方法
WO2016017053A1 (ja) * 2014-07-31 2016-02-04 Ｊｆｅスチール株式会社 プラズマ溶接用フェライト系ステンレス鋼板およびその溶接方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW420719B (en) * 1995-09-26 2001-02-01 Kawasaki Steel Co Ferritic stainless steel sheet having less planar anisotropy and excellent anti-ridging characteristics and its manufacturing method
JPH11323502A (ja) * 1998-05-12 1999-11-26 Sumitomo Metal Ind Ltd 加工性と靭性に優れたフェライト系ステンレス鋼およびその鋳片
JP5489759B2 (ja) 2009-02-09 2014-05-14 新日鐵住金ステンレス株式会社 ブラックスポットの生成の少ないフェライト系ステンレス鋼
JP2011068967A (ja) * 2009-09-28 2011-04-07 Nisshin Steel Co Ltd ステンレス鋼製パネル溶接施工貯水槽
JP2011202254A (ja) * 2010-03-26 2011-10-13 Nisshin Steel Co Ltd 溶接部の耐食性に優れたフェライト系ステンレス鋼
JP5931053B2 (ja) * 2011-03-29 2016-06-08 新日鐵住金ステンレス株式会社 溶接部の耐食性及び強度に優れるフェライト系ステンレス鋼およびｔｉｇ溶接構造物
MY155937A (en) * 2012-09-25 2015-12-17 Jfe Steel Corp Ferritic stainless steel
KR101705135B1 (ko) * 2012-12-07 2017-02-09 제이에프이 스틸 가부시키가이샤 페라이트계 스테인리스 강판
JP5935792B2 (ja) * 2013-12-27 2016-06-15 Ｊｆｅスチール株式会社 フェライト系ステンレス鋼

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000144342A (ja) * 1998-01-30 2000-05-26 Sumitomo Metal Ind Ltd 成形性に優れたフェライト系ステンレス鋼及びフェライト系ステンレス鋼鋳片
JP2004169150A (ja) * 2002-11-21 2004-06-17 Jfe Steel Kk 耐リジング性に優れたＴｉ含有高加工性フェライト系クロム鋼板およびその製造方法
JP2004204252A (ja) * 2002-12-24 2004-07-22 Jfe Steel Kk 耐リジング性に優れたＴｉ含有高加工性フェライト系クロム鋼板およびその製造方法
JP2012036444A (ja) * 2010-08-06 2012-02-23 Nippon Steel & Sumikin Stainless Steel Corp ブラックスポットの生成の少ないフェライト系ステンレス鋼
JP2013166989A (ja) * 2012-02-15 2013-08-29 Nippon Steel & Sumikin Stainless Steel Corp 溶接管構造高温機器用オーステナイト系ステンレス鋼
JP2013209688A (ja) * 2012-03-30 2013-10-10 Nippon Steel & Sumikin Stainless Steel Corp 二相ステンレス鋼を合わせ材とするクラッド鋼板およびその製造方法
WO2016017053A1 (ja) * 2014-07-31 2016-02-04 Ｊｆｅスチール株式会社 プラズマ溶接用フェライト系ステンレス鋼板およびその溶接方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3438310A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020164924A (ja) * 2019-03-29 2020-10-08 日鉄ステンレス株式会社 高純度フェライト系ステンレス鋼及び高純度フェライト系ステンレス鋼鋳片
JP7271261B2 (ja) 2019-03-29 2023-05-11 日鉄ステンレス株式会社 高純度フェライト系ステンレス鋼及び高純度フェライト系ステンレス鋼鋳片

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