CN104180081A - Seamless steel pipe used for petrochemical engineering - Google Patents
Seamless steel pipe used for petrochemical engineering Download PDFInfo
- Publication number
- CN104180081A CN104180081A CN201410397674.XA CN201410397674A CN104180081A CN 104180081 A CN104180081 A CN 104180081A CN 201410397674 A CN201410397674 A CN 201410397674A CN 104180081 A CN104180081 A CN 104180081A
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- layer
- alloy
- seamless steel
- alloy layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/08—Coatings characterised by the materials used by metal
Abstract
The invention discloses a seamless steel pipe used for petrochemical engineering. The seamless steel pipe comprises a steel pipe body, an Ni56Cr22Mo13Cu alloy layer, an Nb-TiAl alloy layer, an Mg-Zn-Nd-Cd-Zr alloy layer and a high-corrosion-resistant Fe-(Cr, Ni)-Mo-P-C-B bulk amorphous alloy layer, wherein the outer surface of the steel pipe body is covered with the Ni56Cr22Mo13Cu alloy layer and the Nb-TiAl alloy layer in sequence; the Mg-Zn-Nd-Cd-Zr alloy layer and the high-corrosion-resistant Fe-(Cr, Ni)-Mo-P-C-B bulk amorphous alloy layer are arranged on the inner surface of the steel pipe body in sequence. According to the invention, through the adoption of the scheme, the seamless steel pipe has sufficient plasticity and toughness as well as high corrosion resistance, and can meet the requirements of the conventional petrochemical industry for seamless steel pipes.
Description
Technical field
The present invention relates to seamless steel pipe field, particularly relate to a kind of seamless steel pipe for petrochemical industry.
Background technique
Petrochemical equipment more will guarantee enough plasticity and toughness (comprising impact toughness and fracture toughness) and corrosion resistance when requiring to have some strength under various service conditions with steel.Due to the continuous appearance of petrochemical industry new process, new equipment, make the service condition of petrochemical equipment more harsh, the plasticity of steel and toughness (comprising impact toughness and fracture toughness) and corrosion resistance etc. are had higher requirement.
Yet the impact toughness of the current seamless steel pipe for petrochemical industry and fracture toughness and highly corrosion resistant can't meet petrochemical industry requirement.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of seamless steel pipe for petrochemical industry, has enough plasticity and toughness and highly corrosion resistant, can meet the requirement of current petrochemical industry to seamless steel pipe.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of seamless steel pipe for petrochemical industry is provided, comprise: steel pipe body, Ni56Cr22Mo13Cu alloy-layer, Nb-TiAl alloy-layer, Mg-Zn-Nd-Cd-Zr alloy-layer and highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer, the outer surface of described steel pipe body is enclosed with described Ni56Cr22Mo13Cu alloy-layer and described Nb-TiAl alloy-layer successively, on the internal surface of described steel pipe body, be disposed with described Mg-Zn-Nd-Cd-Zr alloy-layer and described highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer.
In a preferred embodiment of the present invention, the thickness of described highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer is 1.5 ~ 2.2mm.
In a preferred embodiment of the present invention, the thickness of described Ni56Cr22Mo13Cu alloy-layer is 0.5 ~ 1.2mm.
In a preferred embodiment of the present invention, the thickness of described Nb-TiAl alloy-layer is 0.3 ~ 0.9mm.
The invention has the beneficial effects as follows: the present invention is equipped with Ni56Cr22Mo13Cu alloy-layer, Nb-TiAl alloy-layer, Mg-Zn-Nd-Cd-Zr alloy-layer and highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer, there is enough plasticity and toughness and highly corrosion resistant, can meet the requirement of current petrochemical industry to seamless steel pipe.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the structural representation of seamless steel pipe one preferred embodiment for petrochemical industry of the present invention;
In accompanying drawing, the mark of each parts is as follows: 1, steel pipe body, 2, Ni56Cr22Mo13Cu alloy-layer, 3, Nb-TiAl alloy-layer, 4, Mg-Zn-Nd-Cd-Zr alloy-layer, 5, highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer.
Embodiment
Below the technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Embodiment based in the present invention, those of ordinary skills, not making all other embodiments that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of seamless steel pipe for petrochemical industry, comprise: steel pipe body 1, Ni56Cr22Mo13Cu alloy-layer 2, Nb-TiAl alloy-layer 3, Mg-Zn-Nd-Cd-Zr alloy-layer 4 and highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer 5, the outer surface of described steel pipe body 1 is enclosed with described Ni56Cr22Mo13Cu alloy-layer 2 and described Nb-TiAl alloy-layer 3 successively, on the internal surface of described steel pipe body 1, be disposed with described Mg-Zn-Nd-Cd-Zr alloy-layer 4 and described highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer 5.
Preferably, the thickness of described highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer 5 is 1.5 ~ 2.2mm.
Preferably, the thickness of described Ni56Cr22Mo13Cu alloy-layer 2 is 0.5 ~ 1.2mm.
Preferably, the thickness of described Nb-TiAl alloy-layer 3 is 0.3 ~ 0.9mm.
The present invention for the beneficial effect of the seamless steel pipe of petrochemical industry is: the present invention is equipped with Ni56Cr22Mo13Cu alloy-layer, Nb-TiAl alloy-layer, Mg-Zn-Nd-Cd-Zr alloy-layer and highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer, there is enough plasticity and toughness and highly corrosion resistant, can meet the requirement of current petrochemical industry to seamless steel pipe.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. the seamless steel pipe for petrochemical industry, it is characterized in that, comprise: steel pipe body, Ni56Cr22Mo13Cu alloy-layer, Nb-TiAl alloy-layer, Mg-Zn-Nd-Cd-Zr alloy-layer and highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer, the outer surface of described steel pipe body is enclosed with described Ni56Cr22Mo13Cu alloy-layer and described Nb-TiAl alloy-layer successively, on the internal surface of described steel pipe body, be disposed with described Mg-Zn-Nd-Cd-Zr alloy-layer and described highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer.
2. the seamless steel pipe for petrochemical industry according to claim 1, is characterized in that, the thickness of described highly corrosion resistant Fe-(Cr, Ni)-Mo-P-C-B block amorphous alloy layer is 1.5 ~ 2.2mm.
3. the seamless steel pipe for petrochemical industry according to claim 1, is characterized in that, the thickness of described Ni56Cr22Mo13Cu alloy-layer is 0.5 ~ 1.2mm.
4. the seamless steel pipe for petrochemical industry according to claim 1, is characterized in that, the thickness of described Nb-TiAl alloy-layer is 0.3 ~ 0.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410397674.XA CN104180081A (en) | 2014-08-14 | 2014-08-14 | Seamless steel pipe used for petrochemical engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410397674.XA CN104180081A (en) | 2014-08-14 | 2014-08-14 | Seamless steel pipe used for petrochemical engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104180081A true CN104180081A (en) | 2014-12-03 |
Family
ID=51961325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410397674.XA Pending CN104180081A (en) | 2014-08-14 | 2014-08-14 | Seamless steel pipe used for petrochemical engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104180081A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937662A (en) * | 2016-06-29 | 2016-09-14 | 无锡必胜必精密钢管有限公司 | Large-diameter precision steel pipe |
| CN105937663A (en) * | 2016-06-29 | 2016-09-14 | 无锡必胜必精密钢管有限公司 | Steel pipe for geological drilling |
| CN105937664A (en) * | 2016-06-29 | 2016-09-14 | 无锡必胜必精密钢管有限公司 | Steel pipe for pipe pile bridge |
| CN105937702A (en) * | 2016-06-29 | 2016-09-14 | 无锡必胜必精密钢管有限公司 | Steel pipe for guardrail |
| CN105952986A (en) * | 2016-06-29 | 2016-09-21 | 无锡必胜必精密钢管有限公司 | Steel pipe for gas cylinder |
-
2014
- 2014-08-14 CN CN201410397674.XA patent/CN104180081A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937662A (en) * | 2016-06-29 | 2016-09-14 | 无锡必胜必精密钢管有限公司 | Large-diameter precision steel pipe |
| CN105937663A (en) * | 2016-06-29 | 2016-09-14 | 无锡必胜必精密钢管有限公司 | Steel pipe for geological drilling |
| CN105937664A (en) * | 2016-06-29 | 2016-09-14 | 无锡必胜必精密钢管有限公司 | Steel pipe for pipe pile bridge |
| CN105937702A (en) * | 2016-06-29 | 2016-09-14 | 无锡必胜必精密钢管有限公司 | Steel pipe for guardrail |
| CN105952986A (en) * | 2016-06-29 | 2016-09-21 | 无锡必胜必精密钢管有限公司 | Steel pipe for gas cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141203 |
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| WD01 | Invention patent application deemed withdrawn after publication |