CN109576587A - A kind of high intensity antirust martensitic stain less steel - Google Patents
A kind of high intensity antirust martensitic stain less steel Download PDFInfo
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- CN109576587A CN109576587A CN201811651339.2A CN201811651339A CN109576587A CN 109576587 A CN109576587 A CN 109576587A CN 201811651339 A CN201811651339 A CN 201811651339A CN 109576587 A CN109576587 A CN 109576587A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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Abstract
The present invention provides a kind of high-intensitive antirust martensitic stain less steel, containing iron, carbon, silicon, sulphur, phosphorus, manganese, chromium, nickel, copper, niobium component, each component is respectively as follows: carbon 0-0.05%, silicon 0-0.9% count by weight percentage, sulphur 0-0.02%, phosphorus 0.01-0.03%, manganese 0.01-0.9%, chromium 15.6-17.0%, nickel 4.1-4.9%, copper 3.8-4.5%, niobium 0.25-0.44%, surplus are iron and inevitable impurity.The present invention is by the weight rational proportion of stainless steel each component, improve intensity, antioxygenic property and the corrosion resistance of stainless steel, applied to the fields such as offshore platform, food industry, helicopter deck, paper pulp and paper-making industry, turbine blade, mechanical part, nuclear waste bucket, the service life of equipment or part can be extended, reduce maintenance cost.
Description
Technical field
The present invention relates to stainless steel material field more particularly to a kind of high-intensitive antirust martensitic stain less steels.
Background technique
Martensitic stain less steel is that a kind of stainless steel by being heat-treated its adjustable mechanical property is generally one
The hardenable stainless steel of class.This characteristic determines that this kind of steel must have two primary conditions: first is that must in equilbrium phase diagram
Long-time heating must be carried out within the scope of the regional temperature with the presence of austenite phase field, after being dissolved into carbide in steel, into
Row quenching forms martensite, that is, chemical component must be controlled in γ or γ+alpha phase zone, second is that it is corrosion-resistant to form alloy
With oxidation resistant passivating film, chromium content must be 10.5% or more.
Martensitic stain less steel has high-intensitive and corrosion resistance, can be used to manufacture machine part such as steamturbine blade,
The axis and pull rod, and the part such as valve, bolt to work in corrosive medium etc. of steam equipment.The higher martensite of carbon content
Stainless steel is then suitable for manufacturing medical instrument, table knife, measurement apparatus, spring etc..According to the difference of chemical component, martensite is stainless
Steel can be divided into two class of martensitic chromium steel and martensitic chromium nickel steel；According to the difference of tissue and strengthening mechanism, it can also be divided into martensite
Stainless steel, martensite and semiaustenitic (or half martensite) precipitation-hardening stainless steel and martensite aged stainless steel etc..17-
4PH model stainless steel, i.e. SUS630 model stainless steel are most common martensitic precipitations, and the Chinese trade mark is
0Cr17Ni4Cu4Nb is the precipitation hardenable steel grade for adding copper；Since it is with preferable hardness, tensile strength and corrosion-resistant
Performance is commonly applied to offshore platform, food industry, helicopter deck, paper pulp and paper-making industry, turbine blade, mechanical part, core
The fields such as pail for used dressings.But due to needing to be subjected to the test such as acid medium burn into mechanical wear, existing 17-4 in the application
The service life of PH model stainless steel is shorter；If occurring getting rusty in certain precision equipments or cracking phenomena, it will increase cost, be unfavorable for
The raising of economic benefit and social benefit.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of high-intensitive antirust martensitic stain less steel, martensite is stainless
Composition weight rational proportion in steel, improves its intensity and anticorrosive, antioxygenic property.
To achieve the above object, present invention employs following technical solutions:
A kind of high intensity antirust martensitic stain less steel, containing iron, carbon, silicon, sulphur, phosphorus, manganese, chromium, nickel, copper, niobium component, each component is pressed
Weight percent calculating is respectively as follows: carbon 0-0.05%, silicon 0-0.9%, sulphur 0-0.02%, phosphorus 0.01-0.03%, manganese 0.01-0.9%, chromium
15.6-17.0%, nickel 4.1-4.9%, copper 3.8-4.5%, niobium 0.25-0.44%, surplus are iron and inevitable impurity.
Preferably, each component is respectively as follows: carbon 0.04%, silicon 0.6%, sulphur 0.01%, phosphorus 0.02%, manganese count by weight percentage
0.9%, chromium 15.6%, nickel 4.1%, copper 3.8%, niobium 0.25%, surplus is iron and inevitable impurity.
Preferably, each component is respectively as follows: carbon 0.03% count by weight percentage, silicon 0.5%, sulphur 0.009%, phosphorus 0.015%,
Manganese 0.5%, chromium 15.8%, nickel 4.2%, copper 3.9%, niobium 0.28%, surplus are iron and inevitable impurity.
Preferably, each component is respectively as follows: carbon 0.02%, silicon 0.7%, sulphur 0.02%, phosphorus 0.01%, manganese count by weight percentage
0.6%, chromium 15.7%, nickel 4.3%, copper 3.85%, niobium 0.26%, surplus is iron and inevitable impurity.
Preferably, each component is respectively as follows: carbon 0.015% count by weight percentage, silicon 0.5%, sulphur 0.015%, phosphorus 0.02%,
Manganese 0.7%, chromium 15.6%, nickel 4.5%, copper 4.0%, niobium 0.27%, surplus are iron and inevitable impurity.
Compared with prior art, the present invention provides a kind of high-intensitive antirust martensitic stain less steel, and the weight of each component is closed
Reason proportion, improves intensity, antioxygenic property and the corrosion resistance of stainless steel, applied to offshore platform, food industry, goes straight up to
The fields such as machine deck, paper pulp and paper-making industry, turbine blade, mechanical part, nuclear waste bucket, can extend the longevity of equipment or part
Life.
Detailed description of the invention
Nothing.
Specific embodiment
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby cooperate embodiment detailed
It is described as follows.
A kind of high intensity antirust martensitic stain less steel, contains iron, carbon, silicon, sulphur, phosphorus, manganese, chromium, nickel, copper, niobium component, each group
Divide and is respectively as follows: carbon 0-0.05%, silicon 0-0.9%, sulphur 0-0.02%, phosphorus 0.01-0.03%, manganese 0.01- count by weight percentage
0.9%, chromium 15.6-17.0%, nickel 4.1-4.9%, copper 3.8-4.5%, niobium 0.25-0.44%, surplus be iron and inevitably it is miscellaneous
Matter.
Carbon (C) is the essential element for influencing stainless steel hardness, and usual carbon content is higher, the hardness of the stainless steel after heat treatment
It is higher；But carbon content is excessively high, is easy to impact the corrosion resistance of stainless steel；Chromium (Cr) is stainless steel antirust
Main element, because chromium can form chromium oxide passivation film (Cr in stainless steel surface2O3), to prevent the iron oxygen in stainless steel
Change, usually, chromium content is higher, and the corrosion resistance of stainless steel is better；Increase chromium content, is situated between to stainless steel is improved in oxidisability
Corrosion resistance in matter is extremely effective, while but also the resistance to spot corrosion of stainless steel improves；Since the compatibility of carbon and chromium is good,
It is easy to produce stable chromium carbide, causes chromium content in stainless steel to reduce, so that its corrosion resistance is reduced, so working as chromium content
When identical, carbon content is lower, then the corrosion resistance of stainless steel is better；Carbon content is higher, then the corrosion resistance of stainless steel is poorer；
Both carbon content and chromium content complement each other in stainless steel, and carbon content is 0- in high-intensitive antirust martensitic stain less steel of the invention
0.05%, chromium content 15.6-17.0% can guarantee the stainless steel intensity with higher and corrosion resistance of preparation.
Silicon (Si) is used as reducing agent and deoxidier, can be improved the tensile strength of stainless steel, and silicon and chromium etc. are combined, is improved
Corrosion resistance and oxidation resistant effect；But silicone content increase can reduce the welding performance of stainless steel, therefore height of the invention
Silicone content control is in 0-0.9% in intensity antirust martensitic stain less steel.
Sulphur (S), phosphorus (P) are the harmful elements in stainless steel, can cause shadow to the corrosion-resistant and antioxygenic property of stainless steel
It rings, it is therefore desirable to reduce its content, still, excessively reduction sulphur, phosphorus content will lead to refining cost increase, therefore, be controlled
In the appropriate range, sulfur content control is in 0-0.02%, phosphorus content control in high-intensitive antirust martensitic stain less steel of the invention for system
In 0.01-0.03%, sulphur, phosphorus is avoided to impact the corrosion resistance of stainless steel as far as possible.
Suitable manganese (Mn) can improve the elevated temperature strength of stainless steel, excessive manganese will lead to stainless steel corrosion resistance and
Inoxidizability decline, thus manganese content control guarantees system in 0.01-0.9% in high-intensitive antirust martensitic stain less steel of the invention
Standby stainless steel has high-intensitive and corrosion-resistant, antioxygenic property.
Nickel (Ni) and chromium cooperate, and the corrosion resistance of stainless steel can be significantly improved, to extend making for stainless steel products
With the service life, nickel content control is in 4.1-4.9% in high-intensitive antirust martensitic stain less steel of the invention.
Copper (Cu) can increase the corrosion resistance of stainless steel, so that the plasticity of stainless steel improves, cold-forming property is excellent, this
Copper content is 3.8-4.5% in the high-intensitive antirust martensitic stain less steel of invention.
Niobium (Nb) is carbide, can prevent intercrystalline corrosion, improves the elevated temperature strength of stainless steel, is improved not
It becoming rusty the intergranular corrosion resistance performance of steel, content of niobium is 0.25-0.44% in high-intensitive antirust martensitic stain less steel of the invention, so that
Stainless steel has excellent corrosion resistance.
Had using martensitic stain less steel prepared by weight proportion of the invention high-intensitive, excellent corrosion-resistant and anti-oxidant
Performance, it is useless applied to offshore platform, food industry, helicopter deck, paper pulp and paper-making industry, turbine blade, mechanical part, core
The fields such as object bucket can extend the service life of equipment or part.
Embodiment 1: a kind of high intensity antirust martensitic stain less steel contains iron, carbon, silicon, sulphur, phosphorus, manganese, chromium, nickel, copper, niobium
Component, each component are respectively as follows: carbon 0.04%, silicon 0.6%, sulphur 0.01%, phosphorus 0.02%, manganese 0.9%, chromium count by weight percentage
15.6%, nickel 4.1%, copper 3.8%, niobium 0.25%, surplus is iron and inevitable impurity.
Embodiment 2: a kind of high intensity antirust martensitic stain less steel contains iron, carbon, silicon, sulphur, phosphorus, manganese, chromium, nickel, copper, niobium
Component, each component are respectively as follows: carbon 0.03%, silicon 0.5%, sulphur 0.009%, phosphorus 0.015%, manganese 0.5%, chromium count by weight percentage
15.8%, nickel 4.2%, copper 3.9%, niobium 0.28%, surplus is iron and inevitable impurity.
Embodiment 3: a kind of high intensity antirust martensitic stain less steel contains iron, carbon, silicon, sulphur, phosphorus, manganese, chromium, nickel, copper, niobium
Component, each component are respectively as follows: carbon 0.02%, silicon 0.7%, sulphur 0.02%, phosphorus 0.01%, manganese 0.6%, chromium count by weight percentage
15.7%, nickel 4.3%, copper 3.85%, niobium 0.26%, surplus is iron and inevitable impurity.
Embodiment 4: a kind of high intensity antirust martensitic stain less steel contains iron, carbon, silicon, sulphur, phosphorus, manganese, chromium, nickel, copper, niobium
Component, each component are respectively as follows: carbon 0.015%, silicon 0.5%, sulphur 0.015%, phosphorus 0.02%, manganese 0.7%, chromium count by weight percentage
15.6%, nickel 4.5%, copper 4.0%, niobium 0.27%, surplus is iron and inevitable impurity.
The present invention provides a kind of high-intensitive antirust martensitic stain less steel and improves the weight rational proportion of each component not
Intensity, antioxygenic property and the corrosion resistance of rust steel, applied to offshore platform, food industry, helicopter deck, paper pulp and make
The fields such as paper industry, turbine blade, mechanical part, nuclear waste bucket, can extend the service life of equipment or part.
The present invention is described by above-mentioned related embodiment, however above-described embodiment is only to implement example of the invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from spirit of the invention and
It is changed and retouched made by range, belongs to scope of patent protection of the invention.
Claims (5)
1. a kind of high intensity antirust martensitic stain less steel, it is characterised in that: contain iron, carbon, silicon, sulphur, phosphorus, manganese, chromium, nickel, copper, niobium
Component, each component are respectively as follows: carbon 0-0.05%, silicon 0-0.9%, sulphur 0-0.02%, phosphorus 0.01-0.03% count by weight percentage,
Manganese 0.01-0.9%, chromium 15.6-17.0%, nickel 4.1-4.9%, copper 3.8-4.5%, niobium 0.25-0.44%, surplus are iron and can not keep away
The impurity exempted from.
2. high intensity antirust martensitic stain less steel as described in claim 1, it is characterised in that: each component is by weight percentage
Calculation is respectively as follows: carbon 0.04%, silicon 0.6%, sulphur 0.01%, phosphorus 0.02%, manganese 0.9%, chromium 15.6%, nickel 4.1%, copper 3.8%, niobium 0.25%,
Surplus is iron and inevitable impurity.
3. high intensity antirust martensitic stain less steel as described in claim 1, it is characterised in that: each component is by weight percentage
Calculation is respectively as follows: carbon 0.03%, silicon 0.5%, sulphur 0.009%, phosphorus 0.015%, manganese 0.5%, chromium 15.8%, nickel 4.2%, copper 3.9%, niobium
0.28%, surplus is iron and inevitable impurity.
4. high intensity antirust martensitic stain less steel as described in claim 1, it is characterised in that: each component is by weight percentage
Calculation is respectively as follows: carbon 0.02%, silicon 0.7%, sulphur 0.02%, phosphorus 0.01%, manganese 0.6%, chromium 15.7%, nickel 4.3%, copper 3.85%, niobium
0.26%, surplus is iron and inevitable impurity.
5. high intensity antirust martensitic stain less steel as described in claim 1, it is characterised in that: each component is by weight percentage
Calculation is respectively as follows: carbon 0.015%, silicon 0.5%, sulphur 0.015%, phosphorus 0.02%, manganese 0.7%, chromium 15.6%, nickel 4.5%, copper 4.0%, niobium
0.27%, surplus is iron and inevitable impurity.
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| CN201811651339.2A CN109576587A (en) | 2018-12-31 | 2018-12-31 | A kind of high intensity antirust martensitic stain less steel |
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| CN201811651339.2A CN109576587A (en) | 2018-12-31 | 2018-12-31 | A kind of high intensity antirust martensitic stain less steel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979471A (en) * | 2020-08-24 | 2020-11-24 | 沈阳科金特种材料有限公司 | Preparation method of nuclear power sealing chamber |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704169A (en) * | 2009-11-23 | 2010-05-12 | 中国航空工业集团公司北京航空材料研究院 | Welding wire for gas shielded welding of aging martensitic stainless steel |
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2018
- 2018-12-31 CN CN201811651339.2A patent/CN109576587A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704169A (en) * | 2009-11-23 | 2010-05-12 | 中国航空工业集团公司北京航空材料研究院 | Welding wire for gas shielded welding of aging martensitic stainless steel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111979471A (en) * | 2020-08-24 | 2020-11-24 | 沈阳科金特种材料有限公司 | Preparation method of nuclear power sealing chamber |
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Application publication date: 20190405 |