CN101234458A - 80 kilogram low welding crack sensibility high-strength steel plate welding stick - Google Patents
80 kilogram low welding crack sensibility high-strength steel plate welding stick Download PDFInfo
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- CN101234458A CN101234458A CNA2008100839016A CN200810083901A CN101234458A CN 101234458 A CN101234458 A CN 101234458A CN A2008100839016 A CNA2008100839016 A CN A2008100839016A CN 200810083901 A CN200810083901 A CN 200810083901A CN 101234458 A CN101234458 A CN 101234458A
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Abstract
The invention belongs to a technical field of welding wire and discloses a special welding wire for low welding crack-sensitive high-strength steel plates. The technical scheme is that the welding wire comprises the elements with the following weight percentages: 0.06 to 0.12 of carbon, 0.40 to 1.00 of silicon, 1.40 to 2.10 of manganese, 0.02 to 0.20 of titanium, 0.001 to 0.01 of boron, 0.20 to 0.60 of molybdenum, 0.05 to 1.20 of chromium, less than 0.10 of niobium b, less than 0.10 of vanadium, less than 0.10 of sulfur, less than 0.10 of phosphorus and the rest of iron and inevitable impurities. According to the experience, when the welding wire is not preheated and the working environment temperature of the welded joint of the welding crack-sensitive high-strength steel plates is above minus 20 DEG C, cold crack on the welding seam can be avoided.
Description
Technical field
The invention belongs to the welding wire technology field, relate in particular to a kind of 80 kilogram low welding crack sensibility high-strength steel plate special welding wires.
Background technology
Low welding crack sensibility high-strength steel plate is a kind of steel plate that can not weld crackle under the situation of not preheating or low preheating, the main feature of this class steel plate is, have low P cm value, low-carbon-equivalent, good weldability, have the characteristics of low C content, high cleanliness, high strength and high tenacity simultaneously.Because this kind steel are a kind of novel steel grades, be not specifically designed to the special welding wire of this steel grade welding so far, more be not used in the special welding wire of welding under the lower temperature.When welding this steel grade, adopt common high strength welding wire to make substitute more.In order to improve weld strength, adopt valuable alloy compositions such as in the high strength welding wire, adding a large amount of Ni, Cr, Mo in (as ER76-1, ER83-1) simultaneously or content to substitute welding wire.Utilize this to substitute low welding crack sensibility high-strength steel plate that welding wire welds, because the weld seam alloying element content is too high, thereby cause welding under the too high situation that can not be implemented in not preheating or low preheating of P cm value, low-carbon-equivalent, make this steel plate can not embody its exclusive excellent properties, and therefore improved the production cost of welding wire greatly.Also be not specifically designed to subzero more than 20 ℃ in the environment not only economy, welding performance but also the good special welding wire of welding low welding crack sensibility high-strength steel at present.
Summary of the invention
Purpose of the present invention just provides and is used in the subzero special welding wire that welds low welding crack sensibility high-strength steel plate more than 20 ℃ in the environment specially.
First technical scheme that realizes the object of the invention is:
80 kilogram low welding crack sensibility high-strength steel plate welding sticks, basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, molybdenum Mo:0.20-0.60, vanadium V≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.
In addition: constitute to contain in the described welding wire and be not higher than 1.20% chromium element and 0.01% boron element; Constitute the copper that contains in the described welding wire less than 0.50%.
Second technical scheme that realizes the object of the invention is:
80 kilogram low welding crack sensibility high-strength steel plate welding sticks, basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, molybdenum Mo:0.20-0.60, niobium Nb≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.In addition: constitute to contain in the described welding wire and be not higher than 1.20% chromium element and 0.01% boron element;
Constitute the copper that contains in the described welding wire less than 0.50%.
The 3rd technical scheme that realizes the object of the invention is:
80 kilogram low welding crack sensibility high-strength steel plate welding sticks, basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, molybdenum Mo:0.20-0.60, niobium Nb≤0.10, vanadium V≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.
In addition: constitute to contain in the described welding wire and be not higher than 1.20% chromium element and 0.01% boron element; Constitute the copper that contains in the described welding wire less than 0.50%.
80 kilogram low welding crack sensibility high-strength steel plate welding sticks provided by the present invention have the following advantages: one, and through experiment, it is subzero more than 20 ℃ utilizing the environment temperature of the joint of this welding wire welding; Its two, utilize the high-tensile structural steel of this welding wire welding, not only can realize the microalloying of weld seam, therefore the generation that has stoped the weld seam of welding to produce the cold crack phenomenon, and need not preheating during welding has improved welder's operating environment, it is extremely convenient to use; Its three owing in this welding wire, contain an amount of Ti, B or/and V, make the crystal grain refinement more of weld seam, improved the obdurability of weld seam, the degree of splashing when having reduced welding.
The specific embodiment
First kind is the special welding wire that contains the low welding crack sensibility high-strength steel plate of C, Si, Mn, Ti, B, Mo, Cr and V and copper, and embodiment is:
Embodiment 1
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.10 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.8, Mn:1.80, Ti:0.10, Mo:0.40, V:0.09, surplus is the iron and the inevitable impurity of the no more than iron composition 0.01 percent of its content thereof.
Embodiment 2
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.06, Si:1.0, Mn:1.40, Ti:0.02, Mo:0.60, V:0.05, surplus is the iron and the inevitable impurity of the no more than iron composition 0.40 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
Embodiment 3
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.12, Si:0.4, Mn:2.10, Ti:0.15, Mo:0.20, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 4
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.08, Si:0.6, Mn:2.10, Ti:0.20, B:0.005, Mo:0.50, Cr:1.15, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
Embodiment 5
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.005 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.05, Si:0.5, Mn:2.00, Ti:0.08, B:0.020, Mo:0.03, Cr:0.10, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 6
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.7, Mn:1.50, Ti:0.12, B:0.004, Mo:0.050, Cr:0.80, V:0.02, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.4.
In order further to improve the weld strength and the quenching degree thereof of welding wire, in the foregoing description 4,5 and 6, added content and be not higher than 1.20% chromium element and content and be not higher than 0.01% boron element.
Second kind is the special welding wire that contains the low welding crack sensibility high-strength steel plate of C, Si, Mn, Ti, B, Mo, Cr and Nb and copper, and embodiment is:
Embodiment 7
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.10 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.8, Mn:1.80, Ti:0.10, Mo:0.40, Nb:0.09, surplus is the iron and the inevitable impurity of the no more than iron composition 0.01 percent of its content thereof.
Embodiment 8
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.7, Mn:1.50, Ti:0.12, Mo:0.050, Nb:0.02, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.4.
Embodiment 9
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.005 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.05, Si:0.5, Mn:2.00, Ti:0.08, Mo:0.03, Nb:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 10
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.06, Si:1.0, Mn:1.40, Ti:0.02, B:0.008, Mo:0.60, Cr:0.05, Nb:0.05, surplus is the iron and the inevitable impurity of the no more than iron composition 0.40 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
Embodiment 11
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.12, Si:0.4, Mn:2.10, Ti:0.15, B:0.010, Mo:0.20, Cr:0.50, Nb:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 12
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.08, Si:0.6, Mn:2.10, Ti:0.20, B:0.005, Mo:0.50, Cr:1.00, Nb:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
In order further to improve the weld strength and the quenching degree thereof of welding wire, in the foregoing description 10,11 and 12, added content and be not higher than 1.20% chromium element and content and be not higher than 0.01% boron element.
The third is the special welding wire that contains the low welding crack sensibility high-strength steel plate of C, Si, Mn, Ti, B, Mo, Cr, Nb and V or copper, and embodiment is:
Embodiment 13
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.06, Si:1.0, Mn:1.40, Ti:0.02, Mo:0.60, Nb:0.05, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.40 percent of its content thereof.
Embodiment 14
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.025 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.08, Si:0.6, Mn:2.10, Ti:0.20, Mo:0.50, Nb:0.01, V:0.09, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.5.
Embodiment 15
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.7, Mn:1.50, Ti:0.12, Mo:0.050, Nb:0.02, V:0.02, surplus is the iron and the inevitable impurity of the no more than iron composition 0.30 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.4.
Embodiment 16
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.10 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.10, Si:0.8, Mn:1.80, Ti:0.10, B:0.001, Mo:0.40, Cr:1.0, Nb:0.09, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.01 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.2.
Embodiment 17
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.015 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.12, Si:0.4, Mn:2.10, Ti:0.15, B:0.010, Mo:0.20, Cr:0.50, Nb:0.01, V:0.09, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
Embodiment 18
Select for use S and P all to carry out the smelting of welding wire steel less than the steel of 0.005 percetage by weight, its smelting process does not have specific (special) requirements.The Elements C that adds following percentage by weight in the process of smelting: 0.05, Si:0.5, Mn:2.00, Ti:0.08, B:0.005, Mo:0.03, Cr:0.10, Nb:0.07, V:0.01, surplus is the iron and the inevitable impurity of the no more than iron composition 0.10 percent of its content thereof.After being drawn into welding wire with coppered welding wire, its copper-plated amount be in the welding wire ferrous components percent 0.3.
In order further to improve the weld strength and the quenching degree thereof of welding wire, in the foregoing description 16,17 and 18, added content and be not higher than 1.20% chromium element and content and be not higher than 0.01% boron element.
More than the special welding wire of low welding crack sensibility high-strength steel plate of three kinds of compositions all can realize purpose of the present invention, and owing in welding wire, contain an amount of Ti, V, B and/or Nb, can improve the obdurability of weld seam greatly, thereby reduced the carbon equivalent exponential sum cold crack index of commissure, heat treatment step after preheating procedure in the time of can saving welding and the welding is simplified the technological requirement of welding.
According to experiment, the welding wire (specification is that diameter is 1.6 millimeters) that utilizes the foregoing description to prepare, low welding crack sensibility high-strength steel plate deposited metal mechanical property parameters of welded seam under subzero 20 ℃ temperature to the Q690 model is: tensile strength (Rm) 〉=800Mpa, yield strength (Rr0.2) 〉=690Mpa, V-type impact absorbing energy (AKv) 〉=80J.
Claims (9)
1,80 kilogram low welding crack sensibility high-strength steel plate welding sticks, it is characterized in that: basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, molybdenum Mo:0.20-0.60, vanadium V≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.
2,80 kilogram low welding crack sensibility high-strength steel plate welding sticks according to claim 1 is characterized in that: constitute to contain in the described welding wire and be not higher than 1.20% chromium element and 0.01% boron element.
3,80 kilogram low welding crack sensibility high-strength steel plate welding sticks according to claim 1 and 2 is characterized in that: constitute the copper that contains in the described welding wire less than 0.50%.
4,80 kilogram low welding crack sensibility high-strength steel plate welding sticks, it is characterized in that: basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, molybdenum Mo:0.20-0.60, niobium Nb≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.
5,80 kilogram low welding crack sensibility high-strength steel plate welding sticks according to claim 4 is characterized in that: constitute to contain in the described welding wire and be not higher than 1.20% chromium element and 0.01% boron element.
6, according to claim 4 or 5 described 80 kilogram low welding crack sensibility high-strength steel plate welding sticks, it is characterized in that: constitute the copper that contains in the described welding wire less than 0.50%.
7,80 kilogram low welding crack sensibility high-strength steel plate welding sticks, it is characterized in that: basic element by following percentage by weight: carbon C:0.06-0.12, silicon Si:0.40-1.00, manganese Mn:1.40-2.10, titanium Ti:0.02-0.20, molybdenum Mo:0.20-0.60, niobium Nb≤0.10, vanadium V≤0.10, sulphur S≤0.10, phosphorus P≤0.10, surplus are that iron and unavoidable impurities thereof constitute.
8,80 kilogram low welding crack sensibility high-strength steel plate welding sticks according to claim 7 is characterized in that: constitute to contain in the described welding wire and be not higher than 1.20% chromium element and 0.01% boron element.
9, according to claim 7 or 8 described 80 kilogram low welding crack sensibility high-strength steel plate welding sticks, it is characterized in that: constitute the copper that contains in the described welding wire less than 0.50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100839016A CN101234458A (en) | 2007-12-03 | 2008-03-07 | 80 kilogram low welding crack sensibility high-strength steel plate welding stick |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101958677A CN101157167A (en) | 2007-12-03 | 2007-12-03 | Low welding crack sensibility high-strength steel plate special-purpose welding wire |
| CN200710195867.7 | 2007-12-03 | ||
| CNA2008100839016A CN101234458A (en) | 2007-12-03 | 2008-03-07 | 80 kilogram low welding crack sensibility high-strength steel plate welding stick |
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| CN101234458A true CN101234458A (en) | 2008-08-06 |
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| CNA2007101958677A Pending CN101157167A (en) | 2007-12-03 | 2007-12-03 | Low welding crack sensibility high-strength steel plate special-purpose welding wire |
| CNA2008100839016A Pending CN101234458A (en) | 2007-12-03 | 2008-03-07 | 80 kilogram low welding crack sensibility high-strength steel plate welding stick |
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| CNA2007101958677A Pending CN101157167A (en) | 2007-12-03 | 2007-12-03 | Low welding crack sensibility high-strength steel plate special-purpose welding wire |
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| CN102069321B (en) * | 2011-01-10 | 2012-07-25 | 武汉铁锚焊接材料股份有限公司 | Low-cost gas shielded welding wire for 60 kilogram grade steel |
| CN106475708A (en) * | 2017-01-03 | 2017-03-08 | 天津大桥焊材集团有限公司 | Gas shielded arc welding solid welding wire for X80 pipe line steel boxing seam welding |
| CN110757027B (en) * | 2019-11-05 | 2021-08-17 | 上海欣冈贸易有限公司 | High-hardness chromium-molybdenum alloy welding material |
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Open date: 20080806 |