CN115725897A - Cold-rolled stainless steel material and container made of same - Google Patents
Cold-rolled stainless steel material and container made of same Download PDFInfo
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- CN115725897A CN115725897A CN202111083749.3A CN202111083749A CN115725897A CN 115725897 A CN115725897 A CN 115725897A CN 202111083749 A CN202111083749 A CN 202111083749A CN 115725897 A CN115725897 A CN 115725897A
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- stainless steel
- steel material
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- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 54
- 239000010935 stainless steel Substances 0.000 title claims abstract description 54
- 239000000463 material Substances 0.000 title claims abstract description 53
- 239000000126 substance Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 229910052750 molybdenum Inorganic materials 0.000 claims description 7
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 239000011651 chromium Substances 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 239000010949 copper Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000011572 manganese Substances 0.000 description 8
- 239000010955 niobium Substances 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 235000013305 food Nutrition 0.000 description 4
- 229910052748 manganese Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- 239000011573 trace mineral Substances 0.000 description 3
- 235000013619 trace mineral Nutrition 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910052729 chemical element Inorganic materials 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000021268 hot food Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011076 safety test Methods 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Heat Treatment Of Steel (AREA)
Abstract
A cold-rolled stainless steel material having a chemical composition comprising C less than or equal to 0.08%, si less than or equal to 0.9%, mn less than or equal to 2%, P less than or equal to 0.045%, S less than or equal to 0.03%, ni 8-10.5%, cr 17.5-20%, cu 0.3-2.1%, and the balance Fe, wherein the cold-rolled stainless steel has 515N/mm 2 Tensile strength of 205N/mm or more 2 The above yield strength and elongation of 40% or more.
Description
Technical Field
The present invention relates to a cold-rolled stainless steel material, and more particularly, to a cold-rolled stainless steel material which can be used in a microwave heating device without generating sparks.
Background
Microwave heating devices, such as microwave ovens, are now basic kitchen appliances. The food can be heated quickly and easily using the microwave oven, and thus, it is convenient to obtain the hot food at any time.
However, general metal products cannot be used in a microwave oven, and the energy generated from the microwave oven generates a high electric field on the general metal products and causes an arc phenomenon. Once the arc is excited in the air ionized by one or more sparks, it absorbs a large amount of energy causing severe damage to the metal article. To prevent such dangerous phenomena, microwave food containers are limited to non-metallic materials. Therefore, it is an urgent need to provide a metal material for a microwave heating device without generating sparks.
Disclosure of Invention
In view of solving the problems of the prior art described above, a first aspect of the present invention provides a cold-rolled stainless steel material suitable for a microwave heating apparatus without generating sparks. According to the invention, the cold-rolled stainless steel material has a chemical composition comprising, in mass percent, less than or equal to 0.08% of C, less than or equal to 0.9% of Si, less than or equal to 2% of Mn, less than or equal to 0.045% of P, less than or equal to 0.03% of S, 8-10.5% of Ni, 17.5-20% of Cr, 0.3-2.1% of Cu, and the balance of Fe, wherein the cold-rolled stainless steel material has 515N/mm 2 Tensile Strength (tensile Strength) of 205N/mm or more 2 A yield strength (yield strength) of above and an elongation (elongation) of above 40%.
In one embodiment, the cold-rolled stainless steel material of the present invention has C less than or equal to0.08 percent, less than or equal to 0.9 percent of Si, less than or equal to 2 percent of Mn, less than or equal to 0.045 percent of P, less than or equal to 0.03 percent of S, 8 to 10.5 percent of Ni, 17.5 to 20 percent of Cr, 0.3 to 2.1 percent of Cu, less than or equal to 0.2 percent of Mo, less than or equal to 0.2 percent of V and the balance of Fe in mass percent, wherein the cold-rolled stainless steel has the chemical composition ratio of 515N/mm 2 Tensile strength of 205N/mm or more 2 The above yield strength and elongation of 40% or more.
In one embodiment, the chemical composition comprises, in mass percent, 0.04% to 0.06% of C content.
In one embodiment, the chemical composition comprises, in mass percent, 0.4% to 0.6% Si content.
In one embodiment, the chemical composition comprises, in mass percent, 1% to 1.5% Mn content.
In one embodiment, the chemical component comprises, in mass percent, a P content of 0.02% to 0.04%.
In one embodiment, the chemical component contains 0.002 to 0.005 mass% of S content.
In one embodiment, the chemical composition comprises, in mass percent, a Ni content of 8% to 8.5%.
In one embodiment, the chemical composition comprises 18 to 18.5 mass% of Cr content.
In one embodiment, the chemical composition further comprises Mo or V, wherein the content of Mo or V is less than or equal to 0.2%.
In a second aspect of the invention, there is provided a vessel made from the cold rolled stainless steel material of the first aspect.
Compared with the prior art, the cold-rolled stainless steel material does not generate electric arcs and sparks in a microwave heating device. Thus, the metal material of the present invention can be made into a microwavable food container.
Detailed Description
The invention is illustrated by the following specific examples. Other advantages and features of the present invention will become readily apparent to those skilled in the art after reviewing the disclosure herein. Any changes or adjustments made to the relative relationships, without changing the substantial technical content, are also to be construed as within the range in which the present invention can be implemented.
In the following, the unit "%" or "% (m/m)" of the element content in the chemical composition means "mass%", i.e., mass percentage, unless otherwise specified.
The cold-rolled stainless steel material provided by the first aspect of the invention has a chemical composition comprising, in mass percent, less than or equal to 0.08% of carbon (C), less than or equal to 0.9% of silicon (Si), less than or equal to 2% of manganese (Mn), less than or equal to 0.045% of phosphorus (P), less than or equal to 0.03% of sulfur (S), 8-10.5% of nickel (Ni), 17.5-20% of chromium (Cr), 0.3-2.1% of copper (Cu), and the balance of iron (Fe), wherein the material has 515N/mm according to GB/T228.1-2010 standard 2 Tensile strength of 205N/mm or more 2 The above yield strength and elongation of 40% or more.
In one embodiment, the cold-rolled stainless steel material of the present invention is composed of a chemical composition ratio of less than or equal to 0.08% carbon (C), less than or equal to 0.9% silicon (Si), less than or equal to 2% manganese (Mn), less than or equal to 0.045% phosphorus (P), less than or equal to 0.03% sulfur (S), 8% to 10.5% nickel (Ni), 17.5% to 20% chromium (Cr), 0.3% to 2.1% copper (Cu), less than or equal to 0.2% molybdenum (Mo), less than or equal to 0.2% vanadium (V), and the balance iron (Fe), wherein the material has a 515N/mm mass according to GB/T228.1-2010 standard 2 Tensile strength of 205N/mm or more 2 The above yield strength and the elongation of 40% or more. In the present embodiment, the stainless steel alloy of the present invention is defined by the enclosed contents of "\8230; \8230composition", but those skilled in the art will appreciate that the stainless steel material may contain other trace elements, such as aluminum (Al), niobium (Nb), titanium (Ti), tungsten (W), or boron (B), in an amount of about 0.01% or less than 0.01%, or the stainless steel material may have other chemical elements due to manufacturing techniques or costThe chemical elements, which are unavoidable due to the problem of (2), are present in the stainless steel alloy, and the content thereof is limited to 0.01%.
In one embodiment, the cold-rolled stainless steel material has a C content of 0.04% to 0.06%.
In one embodiment, the Si content of the cold-rolled stainless steel material is 0.4-0.6%.
In one embodiment, the Mn content of the cold-rolled stainless steel material is 1% to 1.5%.
In one embodiment, the P content of the cold-rolled stainless steel material is 0.02% to 0.04%.
In one embodiment, the cold-rolled stainless steel material has an S content of 0.002% to 0.005%.
In an embodiment, the Ni content of the cold rolled stainless steel material is 8% to 8.5%.
In one embodiment, the Cr content of the cold-rolled stainless steel material is 18-18.5%.
Referring to table 1 below, the mass percentages of the chemical components contained in examples 1 to 5 and comparative examples 1 to 3 of the present invention are shown.
In examples 1 to 5, preferred ranges of chemical components included in the cold-rolled stainless steel material provided by the present invention are shown. Wherein, according to the invention, said embodiment has a thickness of between 635 and 670N/mm 2 Tensile strength of about 270N/mm 2 And an elongation of about 60%. The hardness is between 165 and 175HV measured according to GB/T4340.1-2009 standard.
In the present invention, the Si content of the cold rolled stainless steel material must be less than or equal to 0.9% is most critical for the microwavable properties of the material. According to the present invention, the stainless steel of comparative example 1, which has a high Si content, has a high risk of generating sparks during microwave heating. Therefore, according to the present invention, the cold-rolled stainless steel material as in examples 1 to 5 is more suitable for use in the environment of a microwave heating device.
The stainless steel material provided in comparative example 2 has a Si content of less than 0.9%, and although the probability of spark generation in a microwave heating environment is greatly reduced, the Cu content exceeds 2.1%, and thus comparative example 2 is still affected by microwaves, and the safety of each use cannot be ensured.
TABLE 1
In one embodiment, the cold-rolled stainless steel material of the present invention comprises molybdenum (Mo) or vanadium (V) in an amount of less than or equal to 0.2% in addition to the chemical components shown in table one. In a preferred embodiment, the content is about 0.1%.
In one embodiment, the stainless steel material of the present invention further comprises other trace elements such as, but not limited to, aluminum (Al), niobium (Nb), titanium (Ti), tungsten (W), or boron (B), and the content of the trace elements is about 0.01% or less than 0.01%.
In an embodiment, the stainless steel material further includes a substance unavoidable due to a problem of a manufacturing technology or a cost, which is present in the stainless steel alloy, i.e., impurities such as magnesium (Mg), phosphorus (P), sulfur (S), aluminum (Al), niobium (Nb), titanium (Ti), tungsten (W), boron (B), or the like, but is not limited thereto, and the content thereof is limited to 0.01%.
Microwave adaptability test(EN 15284 standard 2007)
In the test report for TUV (No. TUV SZ 168281464 HHQ01), the microwave adaptation test was performed according to EN 15284:2007 standard implementation. The stainless steel samples were placed in a microwave oven and tested at 1000W for 10 minutes, after the samples had cooled down, there were some requirements to check for cracks, crazing, color change and sparking. The test was repeated 3 times, and after each microwave cycle, no visual change was produced in the samples made using the cold rolled stainless steel material provided by the present invention.
Microwave safety test
According to the SGS test report (code T32020300394 SN), samples made of cold-rolled stainless steel material provided by the present invention were tested for 10 minutes in IEC 1700W for 3 cycles, followed by visually checking the experimental groups for any signs of damage by comparing the samples of the control group that were not subjected to microwaves. According to the invention, the test results show that the appearance of the sample made of the cold-rolled stainless steel material provided by the invention is not obviously changed after microwave circulation.
In the invention, the Cr content is 17.5-20%. Higher Cr content increases the rust resistance of stainless steel. According to comparative example 3, the Cr content was less than 17.5%, the Si content was less than 0.9% and the Cu content was between 0.3% and 2.1%, but the material had poor anti-rust ability and was not suitable for food containers.
The cold rolled stainless steel material of the present invention comprises iron as the rest, which means the remaining amount of the stainless steel material up to 100%, and thus in the above described embodiments, the remaining amount of iron may be different.
In a second aspect of the invention, there is provided a vessel made from the cold rolled stainless steel material of the first aspect.
According to the present invention, the cold rolled stainless steel material of examples 1 to 5 may be a preferred example for producing the container of the present invention.
In summary, the cold-rolled stainless steel material of the present invention can overcome the problem of the prior art that the metal product generates the arc and spark in the microwave heating device, and the test reports of the SGS and TUV certification authorities both show that the container made of the cold-rolled stainless steel material of the present invention is quite safe to be heated in the microwave oven. Therefore, the cold rolled stainless steel material of the present invention can be used to make containers for microwave heating without causing damage to the container or microwave oven.
The above description of specific embodiments is merely illustrative of the features and functionality of the present invention, and is not intended to limit the scope of the invention. In light of the spirit and principles of the present disclosure, those skilled in the art will recognize that all modifications and variations fall within the scope of the appended claims.
Claims (10)
1. A cold-rolled stainless steel material is characterized by comprising the following chemical components in percentage by mass (m/m):
c: less than or equal to 0.08%,
Si: less than or equal to 0.9%,
Mn: less than or equal to 2%,
P: less than or equal to 0.045%,
S: less than or equal to 0.03%,
Ni：8％～10.5％、
Cr：17.5％～20％、
Cu:0.3% to 2.1%, and
the rest of the components are Fe,
wherein the cold rolled stainless steel has 515N/mm 2 Tensile strength of 205N/mm or more 2 The above yield strength and elongation of 40% or more.
2. Cold rolled stainless steel material according to claim 1, characterized in that the content of C is 0.04-0.06%.
3. A cold-rolled stainless steel material according to claim 1, wherein the content of Si is 0.4-0.6%.
4. A cold rolled stainless steel material according to claim 1, wherein the content of Mn is 1-1.5%.
5. A cold-rolled stainless steel material according to claim 1, wherein the content of P is 0.02-0.04%.
6. Cold rolled stainless steel material according to claim 1, characterized in that the content of S is 0.002% to 0.005%.
7. A cold-rolled stainless steel material according to claim 1, wherein the Ni content is 8-8.5%.
8. Cold rolled stainless steel material according to claim 1, characterized in that the content of Cr is 18-18.5%.
9. A cold rolled stainless steel material according to claim 1, wherein said chemical composition further comprises Mo or V, wherein the content of Mo or V is less than or equal to 0.2%.
10. A refrigerant container characterized by being prepared from any one of claims 1 to 9, patent material no 37885.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021109859129 | 2021-08-26 | ||
| CN202110985912 | 2021-08-26 |
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| Publication Number | Publication Date |
|---|---|
| CN115725897A true CN115725897A (en) | 2023-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111083749.3A Pending CN115725897A (en) | 2021-08-26 | 2021-09-15 | Cold-rolled stainless steel material and container made of same |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295769A (en) * | 1980-02-28 | 1981-10-20 | Armco Inc. | Copper and nitrogen containing austenitic stainless steel and fastener |
| CN102796960A (en) * | 2011-05-25 | 2012-11-28 | 宝山钢铁股份有限公司 | Ferrite stainless steel with good plastic property and surface quality and preparation method thereof |
| CN103173696A (en) * | 2013-03-25 | 2013-06-26 | 宜兴北海封头有限公司 | Stainless steel hot-rolled steel plate |
| CN106319370A (en) * | 2015-06-19 | 2017-01-11 | 宝钢不锈钢有限公司 | Medium-chromium ferrite stainless steel with excellent plasticity and high strength and manufacturing method of medium-chromium ferrite stainless steel |
| CN110343975A (en) * | 2019-08-16 | 2019-10-18 | 广东广青金属科技有限公司 | A kind of dedicated austenitic stainless steel of barrel of beer and production method |
-
2021
- 2021-09-15 CN CN202111083749.3A patent/CN115725897A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295769A (en) * | 1980-02-28 | 1981-10-20 | Armco Inc. | Copper and nitrogen containing austenitic stainless steel and fastener |
| CN102796960A (en) * | 2011-05-25 | 2012-11-28 | 宝山钢铁股份有限公司 | Ferrite stainless steel with good plastic property and surface quality and preparation method thereof |
| CN103173696A (en) * | 2013-03-25 | 2013-06-26 | 宜兴北海封头有限公司 | Stainless steel hot-rolled steel plate |
| CN106319370A (en) * | 2015-06-19 | 2017-01-11 | 宝钢不锈钢有限公司 | Medium-chromium ferrite stainless steel with excellent plasticity and high strength and manufacturing method of medium-chromium ferrite stainless steel |
| CN110343975A (en) * | 2019-08-16 | 2019-10-18 | 广东广青金属科技有限公司 | A kind of dedicated austenitic stainless steel of barrel of beer and production method |
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Application publication date: 20230303 |