CN102851618A - Low nickel stainless steel alloy material and preparation method thereof - Google Patents
Low nickel stainless steel alloy material and preparation method thereof Download PDFInfo
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- CN102851618A CN102851618A CN2012103270431A CN201210327043A CN102851618A CN 102851618 A CN102851618 A CN 102851618A CN 2012103270431 A CN2012103270431 A CN 2012103270431A CN 201210327043 A CN201210327043 A CN 201210327043A CN 102851618 A CN102851618 A CN 102851618A
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Abstract
The present invention relates to a low nickel stainless steel alloy material and a preparation method thereof. The alloy material comprises the following components, by weight, 0.05-0.1% of carbon, 0-0.01% of sulfur, 0-1.0% of silicon, 0-0.01% of phosphorus, 18.5-19% of chromium, 7.5-8% of manganese, 0.2-0.3% of nitrogen, 0.003-0.008% of boron, 0.008-0.15% of germanium or yttrium, and the balance of iron and unavoidable impurities.
Description
Technical field
The present invention relates to the Stainless Steel Alloy field, refer to especially a kind of low nickel stainless steel alloy material and preparation method.
Background technology
Stainless steel is divided into martensitic steel by structural state, ferritic steel, austenitic steel, austenite-ferrite steel and PH Stainless Steel.Wherein ferritic stainless steel has erosion resistance, toughness and weldability; Austenitic steel has corrosion-resistant, has simultaneously good plasticity, toughness, welding and erosion resistance; Austenite-ferrite has the advantage of austenite and ferritic stainless steel concurrently, and has superplasticity, particularly for having austenite-ferrite, wherein nickel is expensive, in order to reduce cost, should reduce the content of nickel, increase the content of manganese and nitrogen, can when keeping the stainless steel performance, reduce the cost of steel alloy.
Summary of the invention
The objective of the invention is by the technical program, have good erosion resistance and thermoplastic while and reducing the preparation method of stainless steel alloy material and this alloy material of cost.
The present invention is achieved by the following technical solutions:
The low nickel stainless steel alloy material, the composition that this alloy material comprises and weight percentage are: the carbon of 0.05-0.1%, the sulphur of 0-0.01%, the silicon of 0-1.0%, the phosphorus of 0-0.01%, the chromium of 18.5-19%, the manganese of 7.5-8%, the nitrogen of 0.2-0.3%, the boron of 0.003-0.008%, the germanium of 0.008-0.15% or yttrium, rest part are iron and inevitable impurity.
Described stainless steel alloy material by weight percentage composition also comprises the nickel of 0.2-0.5%.
Described stainless steel alloy material by weight percentage composition also comprises at least a in the molybdenum of 0.02-0.05% or the tungsten.
The ratio of manganese and nitrogen is 40 in the described stainless steel alloy material: 1-30: 1.
The preparation method of described low nickel stainless steel alloy material may further comprise the steps:
1), adopt traditional smelting process, when feeding intake, adopt and continue seal of tube master alloy throw-in play, namely prepare in advance master alloy, described master alloy is iron-germanium alloy or iron-yittrium alloy;
2) composition and the weight percentage that, comprise by this alloy material are: the carbon of 0.05-0.1%, the sulphur of 0-0.01%, the silicon of 0-1.0%, the phosphorus of 0-0.01%, the chromium of 18.5-19%, the manganese of 7.5-8%, the nitrogen of 0.2-0.3%, the boron of 0.003-0.008%, the germanium of 0.008-0.15% or yttrium, rest part are that iron and inevitable impurity are prepared burden;
3), with step 2) batching cast after founding.
The weight percentage of germanium is 20% in described iron-germanium alloy; The weight percentage of yttrium is 18% in the described iron yittrium alloy.
The invention has the beneficial effects as follows:
Compared with prior art, alloy material of the present invention is the two-phase region at the steel of its composition range 1000-1300 ℃ of scope, and cost is compared cost with prior art.
Embodiment
Below describe technical scheme of the present invention in detail by specific embodiment.
Employed unit is the weight percent percentage composition except specializing in the present invention.
Embodiment 1
Adopt traditional smelting process, when feeding intake, adopt and continue seal of tube master alloy throw-in play, namely prepare in advance master alloy, the alloy that consists of iron and germanium of master alloy, wherein the weight percentage of germanium is 20%; The alloy of iron and yttrium, wherein the weight percentage of yttrium is 18%, after comprehensive metering, calculating and batching were founded, cast molding finally made the low nickel stainless steel alloy material.Its room temperature tensile breaking tenacity is greater than 850MP, and tension set is greater than 35%.
Its low nickel stainless steel alloy material consists of: 0.05% carbon, and 0.005% sulphur, 0.5% silicon, 0.003% phosphorus, 18.5% chromium, 7.7% manganese, 0.22% nitrogen, 0.003% boron, 0.008% germanium or yttrium, 0.2% nickel, all the other are iron.
Embodiment 2
Adopt traditional smelting process, when feeding intake, adopt and continue seal of tube master alloy throw-in play, namely prepare in advance master alloy, the alloy that consists of iron and germanium of master alloy, wherein the weight percentage of germanium is 20%; The alloy of iron and yttrium, wherein the weight percentage of yttrium is 18%, after comprehensive metering, calculating and batching were founded, cast molding finally made the low nickel stainless steel alloy material.Its room temperature tensile breaking tenacity is greater than 900MP, and tension set is greater than 35%.
Its low nickel stainless steel alloy material consists of: 0.1% carbon, and 0.01% sulphur, 1.0% silicon, 0.01% phosphorus, 19% chromium, 8% manganese, 0.28% nitrogen, 0.008% boron, 0.15% germanium or yttrium, 0.5% nickel, all the other are iron.
Embodiment 3
Adopt traditional smelting process, when feeding intake, adopt and continue seal of tube master alloy throw-in play, namely prepare in advance master alloy, the alloy that consists of iron and germanium of master alloy, wherein the weight percentage of germanium is 20%; The alloy of iron and yttrium, wherein the weight percentage of yttrium is 18%, after comprehensive metering, calculating and batching were founded, cast molding finally made the low nickel stainless steel alloy material.Its room temperature tensile breaking tenacity is greater than 900MP, and tension set is greater than 35%.
Its low nickel stainless steel alloy material consists of: 0.08% carbon, and 0.008% sulphur, 0.8% silicon, 0.005% phosphorus, 18.8% chromium, 7.5% manganese, 0.25% nitrogen, 0.005% boron, 0.01% germanium or yttrium, 0.3% nickel, all the other are iron.
Claims (6)
1. low nickel stainless steel alloy material, it is characterized in that: the composition that this alloy material comprises and weight percentage are: the carbon of 0.05-0.1%, the sulphur of 0-0.01%, the silicon of 0-1.0%, the phosphorus of 0-0.01%, the chromium of 18.5-19%, the manganese of 7.5-8%, the nitrogen of 0.2-0.3%, the boron of 0.003-0.008%, the germanium of 0.008-0.15% or yttrium, rest part are iron and inevitable impurity.
2. described low nickel stainless steel alloy material according to claim 1, it is characterized in that: percentage composition also comprises the nickel of 0.2-0.5% by weight.
3. described low nickel stainless steel alloy material according to claim 1 is characterized in that: percentage composition also comprises at least a in the molybdenum of 0.02-0.05% or the tungsten by weight.
4. described low nickel stainless steel alloy material according to claim 1, it is characterized in that: the ratio of manganese and nitrogen is 40 in the described stainless steel alloy material: 1-30: 1.
5. the preparation method of described low nickel stainless steel alloy material according to claim 1 is characterized in that: may further comprise the steps:
1), adopt traditional smelting process, when feeding intake, adopt continuous-tube sealing master alloy throw-in play, namely prepare in advance master alloy, described master alloy is iron-germanium alloy or iron-yittrium alloy;
2) composition and the weight percentage that, comprise by this alloy material are: the carbon of 0.05-0.1%, the sulphur of 0-0.01%, the silicon of 0-1.0%, the phosphorus of 0-0.01%, the chromium of 18.5-19%, the manganese of 7.5-8%, the nitrogen of 0.2-0.3%, the boron of 0.003-0.008%, the germanium of 0.008-0.15% or yttrium, rest part are that iron and inevitable impurity are prepared burden;
3), with step 2) batching cast after founding.
6. the preparation method of described low nickel stainless steel alloy material according to claim 1, it is characterized in that: the weight percentage of germanium is 20% in described iron-germanium alloy; The weight percentage of yttrium is 18% in the described iron yittrium alloy.
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| CN2012103270431A CN102851618A (en) | 2012-09-05 | 2012-09-05 | Low nickel stainless steel alloy material and preparation method thereof |
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| CN2012103270431A CN102851618A (en) | 2012-09-05 | 2012-09-05 | Low nickel stainless steel alloy material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851602A (en) * | 2012-09-05 | 2013-01-02 | 徐琼 | Low nickel stainless steel alloy material |
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| CN1970815A (en) * | 2006-07-21 | 2007-05-30 | 上海大学 | Rare earth-containing high-nitrogen ultralow-nickel super-duplex stainless steel alloy materials and method for preparing same |
| CN101018908A (en) * | 2004-09-07 | 2007-08-15 | 奥托库姆普联合股份公司 | Steel shell for a suction roll and a method of producing a steel product |
| CN101215674A (en) * | 2008-01-08 | 2008-07-09 | 上海大学 | Economical diphase stainless steel alloy material and preparation method thereof |
| CN102851602A (en) * | 2012-09-05 | 2013-01-02 | 徐琼 | Low nickel stainless steel alloy material |
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2012
- 2012-09-05 CN CN2012103270431A patent/CN102851618A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101018908A (en) * | 2004-09-07 | 2007-08-15 | 奥托库姆普联合股份公司 | Steel shell for a suction roll and a method of producing a steel product |
| CN1970815A (en) * | 2006-07-21 | 2007-05-30 | 上海大学 | Rare earth-containing high-nitrogen ultralow-nickel super-duplex stainless steel alloy materials and method for preparing same |
| CN101215674A (en) * | 2008-01-08 | 2008-07-09 | 上海大学 | Economical diphase stainless steel alloy material and preparation method thereof |
| CN102851602A (en) * | 2012-09-05 | 2013-01-02 | 徐琼 | Low nickel stainless steel alloy material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851602A (en) * | 2012-09-05 | 2013-01-02 | 徐琼 | Low nickel stainless steel alloy material |
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Application publication date: 20130102 |