CN103836325A - Multifunctional welding steel pipe - Google Patents
Multifunctional welding steel pipe Download PDFInfo
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- CN103836325A CN103836325A CN201410093259.5A CN201410093259A CN103836325A CN 103836325 A CN103836325 A CN 103836325A CN 201410093259 A CN201410093259 A CN 201410093259A CN 103836325 A CN103836325 A CN 103836325A
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- steel pipe
- welding steel
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- functional welding
- welding
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Abstract
The invention discloses a multifunctional welding steel pipe which comprises a pipe body. The pipe body is formed by bending a steel plate into the annular section. The connector portion of the pipe body is provided with a triangular notch groove, and welding is carried out along the triangular notch groove so that a linear type welding seam can be formed. The multifunctional welding steel pipe comprises, by mass percent, 0.03-0.10% of C, 0.02-0.50% of SI and 0.8-2.2% of MN. The multifunctional welding steel pipe is high in welding seam strength and corrosion resistance, and long in service life.
Description
Technical field
The present invention relates to a kind of multi-functional welding steel pipe.
Background technique
Steel pipe is a kind of conventional industry and life material, and still common steel pipe meets special the deficiency of taking into account aspect mechanical strength and anti-corrosion capacity, and weld seam fastness deficiency, need to be improved.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of multi-functional welding steel pipe, and the weld strength of this welded steel pipe is high, and anti-corrosion capacity is strong, long service life.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of multi-functional welding steel pipe is provided, comprise the body that is circularized cross section by steel plate bending, the jointing of described body is vee groove, connects and forms straight line type weld seam along this vee slot welding.
In a preferred embodiment of the present invention, in this multi-functional welding steel pipe, contain mass percent and be 0.03～0.10% C, 0.02～0.50% SI and 0.8～2.2% MN.
In a preferred embodiment of the present invention, in this multi-functional welding steel pipe, also contain mass percent and be 0.006～0.03% AL.
The invention has the beneficial effects as follows: the weld strength of this welded steel pipe is high, and anti-corrosion capacity is strong, long service life.
Brief description of the drawings
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 skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing, wherein:
Fig. 1 is the structural representation of multi-functional welding steel pipe of the present invention.
In accompanying drawing, the mark of each parts is as follows: 1, body, 2, vee groove.
Embodiment
To the technological scheme in the embodiment of the present invention be clearly and completely described below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, 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 multi-functional welding steel pipe, comprises the body 1 that is circularized cross section by steel plate bending, and the jointing of described body 1 is vee groove 2, forms straight line type weld seam along these vee groove 2 welding.
Preferably, in this multi-functional welding steel pipe, containing mass percent is 0.03～0.10% C, 0.02～0.50% SI and 0.8～2.2% MN.
Preferably, in this multi-functional welding steel pipe, also containing mass percent is 0.006～0.03% AL.
The beneficial effect of multi-functional welding steel pipe of the present invention is:
The weld strength of multi-functional welding steel pipe of the present invention is high, and anti-corrosion capacity is strong, long service life.
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 (3)
1. a multi-functional welding steel pipe, is characterized in that, comprises the body that is circularized cross section by steel plate bending, and the jointing of described body is vee groove, connects and forms straight line type weld seam along this vee slot welding.
2. multi-functional welding steel pipe according to claim 1, is characterized in that, contains mass percent and be 0.03～0.10% C, 0.02～0.50% SI and 0.8～2.2% MN.
3. multi-functional welding steel pipe according to claim 2, is characterized in that, also contains mass percent and be 0.006～0.03% AL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410093259.5A CN103836325A (en) | 2014-03-14 | 2014-03-14 | Multifunctional welding steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410093259.5A CN103836325A (en) | 2014-03-14 | 2014-03-14 | Multifunctional welding steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103836325A true CN103836325A (en) | 2014-06-04 |
Family
ID=50800093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410093259.5A Pending CN103836325A (en) | 2014-03-14 | 2014-03-14 | Multifunctional welding steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103836325A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090196783A1 (en) * | 2006-07-27 | 2009-08-06 | Takahiro Osuki | Austenitic stainless steel welded joint and austenitic stainless steel welding material |
| CN102418039A (en) * | 2011-12-15 | 2012-04-18 | 浙江金洲管道工业有限公司 | Steel for solid expandable tube used for casing damage patching of oil and gas well and manufacturing method thereof |
| CN203240136U (en) * | 2013-05-21 | 2013-10-16 | 浙江兆隆合金股份有限公司 | Novel copper-steel composite pipe |
| CN203273062U (en) * | 2013-06-05 | 2013-11-06 | 浙江兆隆合金股份有限公司 | Steel-copper composite pipe |
-
2014
- 2014-03-14 CN CN201410093259.5A patent/CN103836325A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090196783A1 (en) * | 2006-07-27 | 2009-08-06 | Takahiro Osuki | Austenitic stainless steel welded joint and austenitic stainless steel welding material |
| CN102418039A (en) * | 2011-12-15 | 2012-04-18 | 浙江金洲管道工业有限公司 | Steel for solid expandable tube used for casing damage patching of oil and gas well and manufacturing method thereof |
| CN203240136U (en) * | 2013-05-21 | 2013-10-16 | 浙江兆隆合金股份有限公司 | Novel copper-steel composite pipe |
| CN203273062U (en) * | 2013-06-05 | 2013-11-06 | 浙江兆隆合金股份有限公司 | Steel-copper composite pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140604 |