CN107186382A - A kind of high manganese ultralow temperature steel welding wire and its welding procedure - Google Patents
A kind of high manganese ultralow temperature steel welding wire and its welding procedure Download PDFInfo
- Publication number
- CN107186382A CN107186382A CN201710432013.XA CN201710432013A CN107186382A CN 107186382 A CN107186382 A CN 107186382A CN 201710432013 A CN201710432013 A CN 201710432013A CN 107186382 A CN107186382 A CN 107186382A
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- China
- Prior art keywords
- ultralow temperature
- welding wire
- high manganese
- temperature steel
- welding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
- B23K35/3073—Fe as the principal constituent with Mn as next major constituent
Abstract
The invention discloses a kind of high manganese ultralow temperature steel welding wire, its chemical composition and mass percentage content are as follows：C is that 0.2 ~ 0.4%, Mn is that 18.0 ~ 27.0%, Si≤0.15%, S≤0.005%, P≤0.02%, Ni is that 1.0 ~ 3.0%, Cr is that 2.0 ~ 4.5%, Cu is that 0.2 ~ 0.5%, N is 0.01 ~ 0.06%, the relict element that surplus is Fe and generally steel-making is present.The welding procedure of preceding described high manganese ultralow temperature steel welding wire uses argon tungsten-arc welding, and groove type is " V " type, and heat input is 4 ~ 21KJ, and protective gas uses high-purity argon gas.The welding wire of high manganese ultralow temperature steel proposed by the present invention is designed using the alloy of high Mn content, Ni contents is considerably reduced, so that material cost is significantly reduced；The welding procedure proposed does not need weld preheating and post weld heat treatment, and technique is simple, it is easy to implement；There is the weld metal formed good intensity, plasticity and toughness to coordinate, and particularly have excellent toughness under 196 DEG C of ultra-low temperature surroundings.
Description
Technical field
The invention belongs to low-temperature steel welding material and welding technique field, more particularly to a kind of high manganese ultralow temperature steel
Welding wire and its welding procedure.
Background technology
Liquefied natural gas（LNG）As one kind cleaning, the efficient energy, its industry development is more and more paid attention to.
LNG ship is the specialized ships for transporting LNG, because LNG is the natural gas that is cooled to -163 DEG C of liquid conditions, so LNG
Ship must maintain it in -163 DEG C in transportation, thus the material of the operating environment requirements manufacture LNG ship of LNG ship has
Excellent cryogenic property.9%Ni steel still have excellent toughness and high intensity, and and Ovshinsky due to it under extremely low temperature
Body stainless steel is compared with aluminium alloy with coefficient of thermal expansion is low, good economy performance, minimum reachable -196 DEG C temperature in use the characteristics of, therefore
Since having shown that also use safely without PWHT of stress relieving by research from nineteen sixty, 9%Ni steel, which just turns into, to be used for
Manufacture one of main material of Large LNG basin.
Nowadays 9%Ni steel has been widely used for low-temperature deep equipment, and 9%Ni steel and its exploitation of supporting wlding are compared into
It is ripe, but because the usage amount of the expensive alloy elements such as Ni is higher（The Ni contents of 9%Ni steel are about 9%, and the Ni contents of wlding are higher than
50%）, steel plate and wlding cost are difficult to reduce.Therefore, many countries are all actively researching and developing new ultralow adiabator.It is used as 9%
One of contenders of Ni steel, the research and development of high manganese ultralow temperature steel are received significant attention in recent years, its Mn constituent content be 20 ~
28%, and Ni elements are not as required alloying element（Huang Wei, Zhang Zhiqin, high true phoenix oil and LNG storage tank steel present situation
And latest Progress Shanghai Metals, 2016,38 (2):74-78）.
The welding of high manganese ultralow temperature steel can also use the wlding of high Ni contents.Application publication number is CN103978322A's
Chinese invention discloses a kind of efficient nickel-base welding rod welded dedicated for LNG ship ultralow temperature steel, including core wire and wraps in weldering
The coating of wicking surface, core wire is nickel alloy core wire, and core wire chemical composition and its weight percent content are：C≤0.03%, S≤
0.01%, P≤0.01%, Mn:0.5 ~ 1.5%, Mo:4 ~ 9%, Nb:1.5 ~ 2.5%, Si≤0.25%, Fe≤1.0%, Cr:
12 ~ 18%, surplus is Ni, and each composition total amount is 100%.The efficient nickel-base welding rod welded dedicated for LNG ship ultralow temperature steel
Although showing good welding usability, also there is weld seam Ni contents in good mechanical property, the welding rod to be up to 80% left side
The right side, this is unfavorable for the cost advantage for giving full play to material.Regrettably, wlding at present on being developed for high manganese ultralow temperature steel
Report seldom, South Korea's Posco, which is disclosed, reported that it successfully developed high manganese ultralow temperature steel wlding, but tight to physical resource
Lattice maintain secrecy, and domestic related R＆D work is still at an early stage.
The content of the invention
The technical problems to be solved by the invention are that existing ultralow temperature steel wlding cost is high, are existed for above prior art
Shortcoming, propose a kind of welding wire and its welding procedure suitable for high manganese ultralow temperature steel.
The present invention solve above technical problem technical scheme be：A kind of high manganese ultralow temperature steel welding wire, its chemical composition and
Mass percentage content is as follows：C is that 0.2 ~ 0.4%, Mn is 18.0 ~ 27.0%, Si≤0.15%, S≤0.005%, P≤0.02%, Ni
It is that 2.0 ~ 4.5%, Cu is that 0.2 ~ 0.5%, N is 0.01 ~ 0.06% for 1.0 ~ 3.0%, Cr, surplus is Fe and generally makes steel the residual of presence
Stay element.
The beneficial effects of the invention are as follows：Ultralow temperature steel welding wire is designed using the alloy of high Mn content, considerably reduces Ni
Content, so that cost and expense are significantly reduced, application prospect is good.
The main function of each chemical composition is as follows in the present invention：
C can produce solution strengthening, additionally it is possible to improve the stability of austenite, suppress the formation of ε-martensite, improve low temperature tough
Property, but too high C content significantly increases stacking fault energy and hinders the formation of twin, damages plasticity, therefore C content control is existed
0.2~0.4%；
Mn can produce solution strengthening, additionally it is possible to stable austenite, sufficiently stable in order to obtain with the effect similar to Ni
Austenite, suppresses the formation of ε-martensite, it is necessary to add substantial amounts of Mn, but Mn too high levels then easily produce intergranular flwrittle fracture, drops
Low low-temperature flexibility, therefore by the control of Mn contents in 18.0-27.0%；
Si can weaken crystal boundary in Grain Boundary Segregation, reduction plasticity and low-temperature flexibility, therefore by the control of Si contents 0.15% and less；
S can form MnS, S and P can also weaken crystal boundary in Grain Boundary Segregation, so as to increase low temperature along brilliant fragility, it is therefore desirable to which control exists
Bottom line；
Ni can produce solution strengthening, improve stabilization of austenite, significantly improve low-temperature flexibility, but Ni's is expensive, largely
Addition will cause cost too high, therefore by the control of Ni contents in 1.0-3.0%；
Cr can produce solution strengthening, moreover it is possible to strengthen austenite grain boundary, but too high levels can then reduce formability, therefore Cr is contained
Amount control is in 2.0-4.5%；
Cu being capable of stable austenite phase, additionally it is possible to produce solution strengthening and precipitation strength, but too high levels can increase red brittleness, no
Beneficial to processing, therefore by the control of Cu contents in 0.2-0.5%；
N can produce solution strengthening, can significantly strengthen crystal boundary in Grain Boundary Segregation and suppress low temperature along brilliant fragility, but too high levels are then
A large amount of nitride are easily formed so as to damage plasticity, therefore by N content control in 0.01-0.06%.
Another object of the present invention is to provide a kind of welding procedure of high manganese ultralow temperature steel welding wire, enable weld metal
Obtain good combination property.
The present invention solve above technical problem technical scheme be：A kind of welding procedure of high manganese ultralow temperature steel welding wire, is adopted
With argon tungsten-arc welding, groove type is " V " type, and heat input is 4 ~ 21KJ, and protective gas uses high-purity argon gas.
The beneficial effects of the invention are as follows：Welding procedure does not need weld preheating and post weld heat treatment, and technique is simple, it is easy to real
Apply, and the weld metal formed has the cooperation of good intensity, plasticity and toughness, i.e. excellent combination property, particularly-
There is good toughness under 196 DEG C of ultra-low temperature surroundings.
Embodiment
Brief description of the drawings：Fig. 1 is the metallographic structure figure of weld metal in embodiment 1.
Embodiment 1
A kind of high manganese ultralow temperature steel welding wire, its chemical composition and mass percentage content are as follows：C is that 0.33%, Mn is 24.4%, Si
Be that 0.002%, P is that 0.013%, Ni is that 1.6%, Cr is that 3.1%, Cu is that 0.2%, N is 0.035% for 0.05%, S, surplus be Fe and
The relict element that generally steel-making is present.
High manganese ultralow temperature steel is welded using the welding wire, using argon tungsten-arc welding, groove type is " V " type, and heat is defeated
Enter amount for 4KJ, protective gas is high-purity argon gas.
It is the metallographic structure photo of weld metal as shown in Figure 1, microscopic structure type is austenite.Measure weld metal
Proof strength of non-proportional Rp0.2=551MPa, tensile strength Rm=813MPa, elongation percentage A=44%, impact test at -196 DEG C
Impact absorbing energy KV2=50J。
Embodiment 2
A kind of high manganese ultralow temperature steel welding wire, its chemical composition and mass percentage content are as follows：C is that 0.2%, Mn is 27.0%, Si
It is that 0.001%, P is that 0.02%, Ni is that 1.0%, Cr is that 4.5%, Cu is that 0.33%, N is 0.06% for 0.15%, S, surplus is Fe and logical
The relict element that often steel-making is present.
High manganese ultralow temperature steel is welded using the welding wire, using argon tungsten-arc welding, groove type is " V " type, and heat is defeated
Enter amount for 15KJ, protective gas is high-purity argon gas.
The microscopic structure type of weld metal is austenite, Proof strength of non-proportional Rp0.2=420MPa, tensile strength
Rm=680MPa, elongation percentage A=51%, impact test impact absorbing energy KV at -196 DEG C2=92J。
Embodiment 3
A kind of high manganese ultralow temperature steel welding wire, its chemical composition and mass percentage content are as follows：C is that 0.4%, Mn is 18.0%, Si
It is that 0.001%, P is that 0.007%, Ni is that 3.0%, Cr is that 2.0%, Cu is that 0.5%, N is 0.01% for 0.07%, S, surplus is Fe and logical
The relict element that often steel-making is present.
High manganese ultralow temperature steel is welded using the welding wire, using argon tungsten-arc welding, groove type is " V " type, and heat is defeated
Enter amount for 21KJ, protective gas is high-purity argon gas.
The microscopic structure type of weld metal is austenite, Proof strength of non-proportional Rp0.2=486MPa, tensile strength
Rm=741MPa, elongation percentage A=40%, impact test impact absorbing energy KV at -196 DEG C2=64J。
In addition to the implementation, the present invention can also have other embodiment.All use equivalent substitution or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (4)
1. a kind of high manganese ultralow temperature steel welding wire, its chemical composition and mass percentage content are as follows：C is that 0.2 ~ 0.4%, Mn is
18.0 ~ 27.0%, Si≤0.15%, S≤0.005%, P≤0.02%, Ni be 1.0 ~ 3.0%, Cr be 2.0 ~ 4.5%, Cu be 0.2 ~
0.5%, N are 0.01 ~ 0.06%, the relict element that surplus is Fe and generally steel-making is present.
2. a kind of welding procedure of high manganese ultralow temperature steel welding wire, it is characterised in that：Using argon tungsten-arc welding, groove type is " V "
Type, heat input is 4 ~ 21KJ, and protective gas uses high-purity argon gas.
3. the welding procedure of high manganese ultralow temperature steel welding wire according to claim 2, it is characterised in that：The welding wire formation
The microscopic structure type of weld metal is austenite.
4. the welding procedure of high manganese ultralow temperature steel welding wire according to claim 2, it is characterised in that：The welding wire formation
The Proof strength of non-proportional R of weld metalp0.2>=420MPa, tensile strength Rm>=680MPa, elongation percentage A >=40%, -196
DEG C impact test impact absorbing energy KV2≥50J。
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|---|---|---|---|
| CN201710432013.XA CN107186382B (en) | 2017-06-09 | 2017-06-09 | High-manganese ultralow-temperature steel welding wire and welding process thereof |
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| CN107186382A true CN107186382A (en) | 2017-09-22 |
| CN107186382B CN107186382B (en) | 2019-12-31 |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938375A (en) * | 2017-03-28 | 2017-07-11 | 武汉科技大学 | Suitable for the gas metal-arc welding welding wire of 196 DEG C of operating temperatures |
| CN108907504A (en) * | 2018-09-05 | 2018-11-30 | 南京钢铁股份有限公司 | A kind of metal powder-cored wire and welding method suitable for ultralow temperature potassium steel |
| CN108971795A (en) * | 2018-08-27 | 2018-12-11 | 中国船舶重工集团公司第七二五研究所 | A kind of high manganese austenite low-temperature steel welding rod |
| CN109530958A (en) * | 2018-07-11 | 2019-03-29 | 江苏科技大学 | A kind of low cost Hadfield steel self-protection flux-cored wire |
| CN109623194A (en) * | 2019-01-04 | 2019-04-16 | 南京钢铁股份有限公司 | A kind of hydrogen controlled electrode for the welding of ultralow temperature potassium steel manual arc |
| CN110170765A (en) * | 2019-05-24 | 2019-08-27 | 四川大西洋焊接材料股份有限公司 | The mating acidic electrode of high Manganese Austenitic Cryogenic Steels of LNG storage tank peculiar to vessel and preparation method |
| CN111618480A (en) * | 2020-06-28 | 2020-09-04 | 昆山京群焊材科技有限公司 | AC/DC dual-purpose high-manganese austenite ultralow-temperature welding rod |
| CN111805120A (en) * | 2020-07-31 | 2020-10-23 | 天津市永昌焊丝有限公司 | Consumable electrode solid welding wire for welding extremely-low-temperature austenite high-manganese steel |
| CN112171109A (en) * | 2020-09-21 | 2021-01-05 | 武汉科技大学 | Full-automatic submerged-arc welding solid-core welding wire for nickel-saving high-manganese low-temperature steel |
| CN112566750A (en) * | 2018-08-23 | 2021-03-26 | 杰富意钢铁株式会社 | Solid wire for gas metal arc welding |
| CN113215502A (en) * | 2021-05-12 | 2021-08-06 | 南京钢铁股份有限公司 | High manganese steel wire rod for welding and steel rolling process thereof |
| CN113634948A (en) * | 2021-06-30 | 2021-11-12 | 南京钢铁股份有限公司 | CO of ultra-low temperature high manganese steel2Gas shielded welding wire and preparation method thereof |
| TWI754536B (en) * | 2020-09-17 | 2022-02-01 | 方德福 | A WELDING FILLER WIRE FOR FUSION WELDING PRECIPITATION-HARDENED AUSTENITIC Fe-Mn-Al-C ALLOYS |
| CN114289929A (en) * | 2022-01-30 | 2022-04-08 | 武汉科技大学 | MIG welding solid welding wire for high-manganese austenite low-temperature steel and welding process thereof |
| CN114289931A (en) * | 2022-01-30 | 2022-04-08 | 武汉科技大学 | Solid welding wire for submerged arc transverse welding of high-manganese austenitic low-temperature steel and welding process thereof |
| TWI775607B (en) * | 2020-11-26 | 2022-08-21 | 日商杰富意鋼鐵股份有限公司 | Welded joint and method of making the same |
| CN116079278A (en) * | 2023-04-06 | 2023-05-09 | 中国科学院合肥物质科学研究院 | High-energy-absorption high-manganese steel solid welding wire and welding process thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1165355A (en) * | 1965-09-30 | 1969-09-24 | Armco Steel Corp | Alloy and Products |
| JPS60121099A (en) * | 1983-12-02 | 1985-06-28 | Sumikin Yousetsubou Kk | Compound wire for welding |
| CN1285255A (en) * | 1999-08-23 | 2001-02-28 | 大连理工大学 | Preparation of welding wire of low Cr and high Mn austenitic steel |
| CN1496781A (en) * | 2002-09-26 | 2004-05-19 | ����ͨAnp����˾ | Nickel-base alloy and solder wire for electric welding nickel alloy and steel and its application |
| CN101637850A (en) * | 2009-09-01 | 2010-02-03 | 中国电力科学研究院 | Argon tungsten-arc welding wire used in HR3C stainless steel welding |
| CN101862887A (en) * | 2010-04-28 | 2010-10-20 | 南京钢铁股份有限公司 | Method of submerged-arc welding of thick sheet S355NL for low-temperature wind tower |
-
2017
- 2017-06-09 CN CN201710432013.XA patent/CN107186382B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1165355A (en) * | 1965-09-30 | 1969-09-24 | Armco Steel Corp | Alloy and Products |
| JPS60121099A (en) * | 1983-12-02 | 1985-06-28 | Sumikin Yousetsubou Kk | Compound wire for welding |
| CN1285255A (en) * | 1999-08-23 | 2001-02-28 | 大连理工大学 | Preparation of welding wire of low Cr and high Mn austenitic steel |
| CN1496781A (en) * | 2002-09-26 | 2004-05-19 | ����ͨAnp����˾ | Nickel-base alloy and solder wire for electric welding nickel alloy and steel and its application |
| CN101637850A (en) * | 2009-09-01 | 2010-02-03 | 中国电力科学研究院 | Argon tungsten-arc welding wire used in HR3C stainless steel welding |
| CN101862887A (en) * | 2010-04-28 | 2010-10-20 | 南京钢铁股份有限公司 | Method of submerged-arc welding of thick sheet S355NL for low-temperature wind tower |
Non-Patent Citations (1)
| Title |
|---|
| 中国机械工程学会焊接学会: "《焊接手册第3版（修订本）第2卷：材料的焊接》", 31 October 2014, 机械工业出版社 * |
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| CN106938375B (en) * | 2017-03-28 | 2019-03-19 | 武汉科技大学 | Gas metal-arc welding welding wire suitable for -196 DEG C of operating temperatures |
| CN106938375A (en) * | 2017-03-28 | 2017-07-11 | 武汉科技大学 | Suitable for the gas metal-arc welding welding wire of 196 DEG C of operating temperatures |
| CN109530958A (en) * | 2018-07-11 | 2019-03-29 | 江苏科技大学 | A kind of low cost Hadfield steel self-protection flux-cored wire |
| CN112566750A (en) * | 2018-08-23 | 2021-03-26 | 杰富意钢铁株式会社 | Solid wire for gas metal arc welding |
| CN108971795A (en) * | 2018-08-27 | 2018-12-11 | 中国船舶重工集团公司第七二五研究所 | A kind of high manganese austenite low-temperature steel welding rod |
| CN108907504A (en) * | 2018-09-05 | 2018-11-30 | 南京钢铁股份有限公司 | A kind of metal powder-cored wire and welding method suitable for ultralow temperature potassium steel |
| CN109623194A (en) * | 2019-01-04 | 2019-04-16 | 南京钢铁股份有限公司 | A kind of hydrogen controlled electrode for the welding of ultralow temperature potassium steel manual arc |
| CN110170765A (en) * | 2019-05-24 | 2019-08-27 | 四川大西洋焊接材料股份有限公司 | The mating acidic electrode of high Manganese Austenitic Cryogenic Steels of LNG storage tank peculiar to vessel and preparation method |
| CN110170765B (en) * | 2019-05-24 | 2021-05-11 | 四川大西洋焊接材料股份有限公司 | High-manganese austenite ultralow-temperature steel matched acid welding rod for marine LNG storage tank and preparation method thereof |
| CN111618480B (en) * | 2020-06-28 | 2021-07-20 | 昆山京群焊材科技有限公司 | AC/DC dual-purpose high-manganese austenite ultralow-temperature welding rod |
| CN111618480A (en) * | 2020-06-28 | 2020-09-04 | 昆山京群焊材科技有限公司 | AC/DC dual-purpose high-manganese austenite ultralow-temperature welding rod |
| CN111805120A (en) * | 2020-07-31 | 2020-10-23 | 天津市永昌焊丝有限公司 | Consumable electrode solid welding wire for welding extremely-low-temperature austenite high-manganese steel |
| TWI754536B (en) * | 2020-09-17 | 2022-02-01 | 方德福 | A WELDING FILLER WIRE FOR FUSION WELDING PRECIPITATION-HARDENED AUSTENITIC Fe-Mn-Al-C ALLOYS |
| CN112171109A (en) * | 2020-09-21 | 2021-01-05 | 武汉科技大学 | Full-automatic submerged-arc welding solid-core welding wire for nickel-saving high-manganese low-temperature steel |
| TWI775607B (en) * | 2020-11-26 | 2022-08-21 | 日商杰富意鋼鐵股份有限公司 | Welded joint and method of making the same |
| CN113215502A (en) * | 2021-05-12 | 2021-08-06 | 南京钢铁股份有限公司 | High manganese steel wire rod for welding and steel rolling process thereof |
| WO2022236975A1 (en) * | 2021-05-12 | 2022-11-17 | 南京钢铁股份有限公司 | High-manganese steel wire rod for welding and steel rolling process therefor |
| CN113634948A (en) * | 2021-06-30 | 2021-11-12 | 南京钢铁股份有限公司 | CO of ultra-low temperature high manganese steel2Gas shielded welding wire and preparation method thereof |
| CN114289929A (en) * | 2022-01-30 | 2022-04-08 | 武汉科技大学 | MIG welding solid welding wire for high-manganese austenite low-temperature steel and welding process thereof |
| CN114289931A (en) * | 2022-01-30 | 2022-04-08 | 武汉科技大学 | Solid welding wire for submerged arc transverse welding of high-manganese austenitic low-temperature steel and welding process thereof |
| CN116079278A (en) * | 2023-04-06 | 2023-05-09 | 中国科学院合肥物质科学研究院 | High-energy-absorption high-manganese steel solid welding wire and welding process thereof |
| CN116079278B (en) * | 2023-04-06 | 2023-12-08 | 中国科学院合肥物质科学研究院 | High-energy-absorption high-manganese steel solid welding wire and welding process thereof |
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