JPS58202993A - Welding wire rod of stainless steel - Google Patents
Welding wire rod of stainless steelInfo
- Publication number
- JPS58202993A JPS58202993A JP8456082A JP8456082A JPS58202993A JP S58202993 A JPS58202993 A JP S58202993A JP 8456082 A JP8456082 A JP 8456082A JP 8456082 A JP8456082 A JP 8456082A JP S58202993 A JPS58202993 A JP S58202993A
- Authority
- JP
- Japan
- Prior art keywords
- less
- welding
- wire rod
- stainless steel
- welding wire
- 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.)
- Granted
Links
Classifications
-
- 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
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はステンレス鋼溶接線材に係り、特ｔこ、溶接性
に優れ、高品質な溶接部を得ることのできるＮｉ−０ｒ
−Ｆｅ系ステンレス鋼溶接材料に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stainless steel welding wire rod, in particular Ni-0r which has excellent weldability and can obtain a high quality welded part.
-It relates to Fe-based stainless steel welding materials.
周知の如く、５ＵＳ３０４．８Ｕ８８１６などのＮｉ−
０ｒ−Ｆｅ系ステンレス鋼は、耐食性、耐熱性等の性能
に優れているため、化学装置、耐熱装置、原子カプラン
ト等の材料として広く用いられている。そして、これら
の装置には、当然のことながら、気密性、水蜜性が重要
視されるところから、それは通常溶接により組み立てら
れているが、そのような材料を溶接するために用いられ
る溶接材料としては、従来からＹ２Ｏ２等のＮｉ−０ｒ
−Ｆｅ系ステンレス鋼溶接線材が用いられてきた。As is well known, Ni- such as 5US304.8U8816
Since 0r-Fe stainless steel has excellent performance such as corrosion resistance and heat resistance, it is widely used as a material for chemical equipment, heat resistant equipment, atomic couplants, etc. Naturally, these devices are assembled by welding because airtightness and watertightness are important, but welding materials used to weld such materials are Conventionally, Ni-0r such as Y2O2
-Fe-based stainless steel welding wires have been used.
しかしながら、従来から市販されているＮｉ−０ｒ−Ｆ
ｅ系ステンレス鋼溶接材料は、（１）ビード状状が悪く
、ビードが凸形となること、（２）溶接アークの安定性
が悪いこと、（３）溶接部においてスラグが剥離し難い
こと等の欠点を有していることにより、溶接部に却いて
（ａ）融合不良（ｂ）プローホ゛−ルの発生、（Ｃ）ス
ラグの巻き込み等の欠陥が生じ、このため所定の溶接部
性能を得るのに、かかる溶接部に対して、機械加工、グ
ラインダ研削加工などによる多大の手直し工数を必要と
する大きな問題があった。However, conventionally commercially available Ni-0r-F
E-series stainless steel welding materials have the following problems: (1) The bead shape is poor and the bead is convex. (2) The stability of the welding arc is poor. (3) The slag is difficult to peel off at the welded part. Due to these drawbacks, defects such as (a) poor fusion, (b) generation of protrusions, and (C) slag entrainment occur in the weld, and as a result, the desired weld performance cannot be achieved. However, there was a major problem in that the welded portion required a large amount of man-hours for rework by machining, grinding, etc.
したがって、従来からアークの安定性、ビード形状の改
善について、各分野から種々検討が為され、例えばワイ
ヤ成分の見直しとしては、ＥＲ３０８８ｉの如（，８ｉ
の添加を行なったり、或いは溶接機の改良としてはパル
ス溶接機の開発を図り、更にはシールドガスの見直しも
行なわれているが、未だ上記問題を完全に解決するには
至っていないのである。加えて、溶接部におけるスラグ
の剥離性の改善については現在のところ何らの解決策も
提案されていないのである。Therefore, various studies have been carried out in various fields regarding the improvement of arc stability and bead shape.
Efforts have been made to improve the welding machine by developing a pulse welding machine, and even reviewing the shielding gas, but the above-mentioned problem has not yet been completely solved. In addition, no solutions have been proposed to date for improving the slag removability of welds.
本発明者らは、これらの状況に鑑み、ビード形状がよく
、溶接アークの安定性が優れ、更にはスラグ量が少なく
且つスラグの剥離性の良好なＮｉ−Ｃｒ−Ｆｅ系ステン
レス鋼溶接線材を得るため、種々の合金元素の影響につ
いて検討した結果、機知の添加元素Ｓｉの他に、Ｓ（硫
黄）、０（酸素）を添加することにより、下向き溶接条
件下でのビード形状が著しく改善されることを見い出し
たのである。また、特に、Ｍ、ｎ（マンガン）と８ｉ（
ケイ素）量の比率を所定の範囲内に規制した場合におい
て、極く僅かの８の添加でもその添加効果が認められ、
Ｏとの複合添加と相俟って、全溶接姿勢でのビード形状
及び耐ブローホール性の明らかな改善効果が他の性質、
例えば耐食性を損うことなく認められる事実を見い出し
たのである。そして、本発明はこれらの知見に基づいて
完成されたものである。In view of these circumstances, the present inventors have developed a Ni-Cr-Fe stainless steel welding wire that has a good bead shape, excellent welding arc stability, and has a small amount of slag and good slag removability. As a result of studying the effects of various alloying elements, we found that the bead shape under downward welding conditions was significantly improved by adding S (sulfur) and O (oxygen) in addition to the well-known additive element Si. I discovered that. In particular, M, n (manganese) and 8i (
When the ratio of the amount of silicon (silicon) is regulated within a predetermined range, the addition effect is recognized even with the addition of a very small amount of 8.
Combined with the combined addition of O, the bead shape and blowhole resistance in all welding positions were clearly improved.
For example, they discovered a fact that can be recognized without impairing corrosion resistance. The present invention has been completed based on these findings.
すなわち、本発明は、重量で、Ｃ：α２０チ以下、ｓｉ
：α８０〜１．５０％、Ｍｎ：１．１０〜２．６０％
、 Ｎｉ；ｆｉＯ〜２＆０％ 、 Ｃｒ：１２．０〜
３２．０％、Ｓ：αｏｏｓ〜α０５０％、０：α００５
０〜００４０％、Ｎ：００６％以丁を含有し、且つＭｎ
／Ｓｉの含量比が１．８〜ａＯの範囲内となり、残部が
Ｆｅ及び不可避的不純物よりなる溶接性に優れたステン
レス鋼溶接線材を特徴とするものである。そして、かか
る構成によって、ビード形状に優れた、また溶接アーク
の安定性のよい、更には耐ブローホール性の改善された
溶接部を得ることが可能となったのである。That is, in the present invention, in terms of weight, C: α20 cm or less, si
:α80~1.50%, Mn:1.10~2.60%
, Ni; fiO~2&0%, Cr:12.0~
32.0%, S: αoos to α050%, 0: α005
0 to 0040%, N: 006%, and Mn
The present invention is characterized by a stainless steel welding wire having an excellent weldability in which the /Si content ratio is within the range of 1.8 to aO, and the balance is Fe and unavoidable impurities. With this configuration, it has become possible to obtain a welded part with an excellent bead shape, good welding arc stability, and improved blowhole resistance.
さらに、本発明にあっては、かかる成分組成の溶接線材
に対して、従来から溶接アークの不安定の原因とされて
いたＢ、Ｃａ、Ｍｇ及び稀土類元素（ＲＥＭ）のうちの
少なくとも１種を、更に０５チを越えない割合で複合含
有せしめることによって、溶接部の耐食性やビード形状
を損うことな（スラグの発生をより少な（し得、且つス
ラグの剥離性をより一層向上せしめ得たのである。Furthermore, in the present invention, at least one of B, Ca, Mg, and rare earth elements (REM), which have been considered to cause instability of the welding arc, can be added to the welding wire rod having such a composition. Further, by further containing 0.05 mm in a proportion not exceeding 0.05 mm, it is possible to reduce the generation of slag without impairing the corrosion resistance or bead shape of the weld, and to further improve the slag removability. It was.
ここにおいて、かくの如き本発明に従う溶接線材中に含
有せしめられるＣ（炭素）は、溶接部のオーステナイト
組織を安定化せしめ、またその強震を向上せしめる為に
含有せしめられるものであり、一般にその含有量は０．
２０％以下（重量基準以Ｆ同じ）、好ま（（はα０６％
以下、更に好ましくは００８チ以下の割合に維持される
。なお、あまりにもＣの含有量が多くなると、溶接部の
耐食性が劣化し、粒界腐食や孔食などの問題が惹起され
ることとなり、望ましくない。Here, C (carbon) contained in the welding wire rod according to the present invention is contained in order to stabilize the austenitic structure of the welded part and improve its strong earthquake resistance, and generally its content is The amount is 0.
20% or less (same as weight standard), preferable ((α06%
Hereinafter, the ratio is more preferably maintained at 0.008 cm or less. It should be noted that if the content of C is too large, the corrosion resistance of the welded part will deteriorate, causing problems such as intergranular corrosion and pitting corrosion, which is not desirable.
また、８ｉ（ケイ素）は、溶接部の形成に際して、溶接
雰囲気中の酸素の影響を避けるために脱酸剤として加え
られるものであるが、またかかるＳｉは溶接アークの安
定化や溶接部の耐酸化性を向上せしめ得る作用を為し、
その効果は一般に（１８０％以上において期待すること
ができる。しかし、ＳＩの含有量が１．５チを越えるよ
うになると、靭性の劣化や耐食性の劣化が惹起されるよ
うになるので、その上限は１．５０ ％である。ｖｊｔ
こ、８ｉ含量の望ましい範囲としては０７〜０９５チで
ある。In addition, 8i (silicon) is added as a deoxidizing agent to avoid the influence of oxygen in the welding atmosphere when forming a weld, but Si also stabilizes the welding arc and improves the acid resistance of the weld. It has the effect of improving the chemical properties of
The effect can generally be expected at 180% or higher.However, if the SI content exceeds 1.5%, deterioration of toughness and corrosion resistance will occur, so the upper limit is 1.50%.vjt
The desirable range of the 8i content is 07 to 095.
さらに、Ｍｎ（マンガン）も、・８ｉと同様に脱酸剤と
して添加されるものであり、これは１．１０チ以上の含
有量においてγ層の安定化や含有せしめられる８（硫黄
）による悪影響を阻止するのに有効である。なお、Ｍｎ
量が２．６０％を越えるようになると、耐食性の劣化を
惹き起こすようになるので、それ以上の添加は避１１す
るべきである。特に、Ｍｎ含有量の好ましい添加範囲と
してはＬ７〜１９５％である。Furthermore, like 8i, Mn (manganese) is also added as a deoxidizing agent, and at a content of 1.10 or more, it stabilizes the γ layer and has an adverse effect due to the contained 8 (sulfur). effective in preventing In addition, Mn
If the amount exceeds 2.60%, corrosion resistance will deteriorate, so addition of more than that should be avoided. In particular, the preferable addition range for the Mn content is L7 to 195%.
なお、かかるＭｎと８１は、そのＭ ｎ ／ ８ ｉの
含量比が１．３〜＆Ｏ１好ましくは１．８〜２．８の範
囲内となるような割合で添加せしめなければならない。Note that Mn and 81 must be added in such a ratio that the content ratio of Mn/8i is in the range of 1.3 to &O1, preferably 1.8 to 2.8.
Ｍ ｎ ／ Ｓ ｉの含量比が１．３より小さくなると
、耐割れ性が劣化し、溶接部に割れが生じゃすくなる問
題を起こすのであり、またＭ ｎ ／ ８ ｉの含量比
が８０を越えるようになると、後述するところの８やＯ
の添加効果を十分に発揮し得なくなるからである。If the content ratio of M n / Si is less than 1.3, the cracking resistance will deteriorate and cracks will easily form in the welded part, and if the content ratio of M n / Si is less than 80. When you start to exceed 8 and O, which will be explained later.
This is because the effect of addition cannot be fully exhibited.
本発明において重要な意義を有する重要な元素であるＳ
（硫黄）は、通常溶接部の凝固時に低―点化合物を形成
し、溶接割れの原因となるとされているが、本発明者ら
の検討によれば、かかるＳはｓ ｉＸＭｎＸｏとの相互
作用によって、１００８〜００５０％の含有量範囲にお
いて、溶接割れや耐食性の劣化を惹起することなく、ビ
ード形状、耐ブローホール性の効果的な向上を図り得る
ことが明らかとなったの宅ある。なお、かかるＳの好ま
しい範囲としてはＱＱＯ８〜αｏ２５ｅＩ２、更に好ま
しい範囲としては００１〜Ｑ０２％の範囲である。この
ような範囲によって、Ｓの添加効果が更に強調されるこ
ととなる。S is an important element having important significance in the present invention.
Sulfur (sulfur) normally forms a low-point compound during solidification of a weld and is said to cause weld cracking, but according to the inventors' study, such S , 1008% to 0050%, it has become clear that bead shape and blowhole resistance can be effectively improved without causing weld cracking or deterioration of corrosion resistance. The preferable range of S is QQO8 to αo25eI2, and the more preferable range is 001 to Q02%. Such a range further emphasizes the effect of adding S.
また、０（酸素）は溶接アークの安定性、ビード形状の
改善に寄与するものであって、そのような効果を十分に
奏せしめるためには、少なくともα００５０％以上の割
合で含有せしめる必要があるが、００４０％を越えるよ
うになると、熱間、冷間での加工性が劣化するところか
ら、その含有範囲としては１００５０〜００４０％、好
ましくは００３５チ以下、更に好ましくは００８０％以
下、特に好ましくは００１０〜ＱＯ２（ｌが採用される
。In addition, 0 (oxygen) contributes to the stability of the welding arc and the improvement of the bead shape, and in order to fully exhibit such effects, it is necessary to contain it in a proportion of at least α0050% or more. However, if it exceeds 0,040%, hot and cold workability deteriorates, so the content range is 10,050 to 0,040%, preferably 0,035% or less, more preferably 0,080% or less, particularly preferably is 0010 to QO2(l).
なお、Ｎｉにニッケル）は溶接線材の主要元素であり、
γ層安定、靭性の向上、耐食性の向上の観点から、少な
くともａｏ１以上の割合で含有せしめる必要があり、ま
たかかるニッケルの上限としては、溶ビ割れ性が劣化し
たり、多量の使用により、線材自体が高価となるところ
から、その上限は２ｆａＯ％程度に留められることとな
る。In addition, nickel (Ni) is the main element of welding wire,
From the viewpoint of stabilizing the γ layer, improving toughness, and improving corrosion resistance, it is necessary to contain nickel in a ratio of at least ao1 or more.The upper limit of nickel is that it may deteriorate the weld cracking property or cause wire rods to deteriorate when used in large quantities. Since it is expensive, its upper limit is limited to about 2faO%.
また、Ｃｒ（クロム）は、上記Ｎ１と共に、基礎元素と
なるＦｅに添加せしめられる主要元素であって、耐食性
、耐酸化性を向上せしめる元素であり、そのような効果
は通常１２％以上の含有割合で発揮されるが、その８２
％を越える添加は、σ相析出等の高温脆化の問題を惹起
することから、一般には１２〜８２％の割合で含有せし
められることとなる。In addition, Cr (chromium) is a main element added to Fe, which is the basic element, along with N1, and is an element that improves corrosion resistance and oxidation resistance. It is demonstrated in the ratio, but 82
Since adding more than 1% will cause problems of high-temperature embrittlement such as σ phase precipitation, it is generally added at a ratio of 12 to 82%.
さらに、Ｎ（窒素）は、通常ステンレス鋼に含まれる元
素であり、その所定量によって靭性の向上、ｒ層の安定
化をはかり得るものであるが、その含有量が多くなると
ビード形状が劣化するなどの問題を生じるので、その含
有量は０．０６％以下に止めなければならない。Furthermore, N (nitrogen) is an element normally contained in stainless steel, and a certain amount of it can improve toughness and stabilize the R layer, but if its content increases, the bead shape will deteriorate. Therefore, its content must be kept at 0.06% or less.
本発明は、かくの如き所定の元素を特定割合の量で配合
、含有せしめ、残部をＦｅ（鉄）及び不可避的不純物（
例えば、Ｐ、Ａｌなど）として、溶接線材を構成せしめ
たものであって、これによって溶接部におけるビード形
状を改善し、即ちビードの突出を避け、比較的フラット
なビード形状と為し得るのであり、また溶接アークの安
定性を高め得、更に耐ブローホール性の改善をも達成し
得たのである。特に、本発明に係る溶接線材は、ステン
レス鋼のＭＩＧ溶接、ＴＩＧ溶接における溶接ワイヤー
として好適に用いられるものである。In the present invention, such predetermined elements are blended and contained in specific proportions, and the remainder is Fe (iron) and unavoidable impurities (
For example, P, Al, etc.) are used to construct the welding wire rod, thereby improving the bead shape at the welded part, that is, avoiding protrusion of the bead and making it possible to create a relatively flat bead shape. In addition, the stability of the welding arc was improved, and blowhole resistance was also improved. In particular, the welding wire according to the present invention is suitably used as a welding wire in MIG welding and TIG welding of stainless steel.
また、かかる本発明に従う溶接線材には、必要に応じて
高温強度の向上や耐食性、耐孔食性の向上をはかるため
に、ＭＯ（モリブデン）を５％を越えない割合で配合せ
しめることができる。なお、ＭＯの多量の添加は高温脆
化や靭性劣化を惹起し望ましくない。また、Ｃｕ（銅）
も５％以下の割合で含有せしめられ得、これによって耐
食性が向上されるが、その効果は上記ＭＯとの複合添加
によって、さらに顕著なものとなるのである。このＣｕ
も多量に含有せしめられると、高温脆化を惹起し、熱間
加工性を劣化させるなどの問題を生じる・さらに、Ｔ・
（チ↑′７）は脱酸剤として添加せしめられ、耐粒界腐
食性を向上せしめる利点があるところから、１％を越え
ない割合で添加、含有せしめることができる。しかし、
１％を越えるようなＴｉの添加は、高温脆化と共に耐孔
食性が劣化する等の問題が生じるので望ましくない。ま
た、Ｎｂにオプ）は高温強度を向上し、耐粒界腐食性を
向上せしめるために１％を越えない割合で添加されるも
のである。なお、このＮｂの多量の添加は高温脆化を惹
起し、溶接割れ性を劣化せしめるなどの問題を生じ、好
ましくない。また、これらＭｏ、Ｃｕ、Ｔｉ、Ｎｂは複
合して添加することかできるが、これらの２種以上が添
加される場合においては、その合計量が７％を越えない
ようにすることが望ましい。Furthermore, the welding wire according to the present invention may contain MO (molybdenum) in a proportion not exceeding 5% in order to improve high-temperature strength, corrosion resistance, and pitting corrosion resistance as necessary. Note that addition of a large amount of MO is undesirable because it causes high temperature embrittlement and deterioration of toughness. Also, Cu (copper)
MO can also be contained in a proportion of 5% or less, which improves corrosion resistance, but the effect becomes even more remarkable when combined with the above-mentioned MO. This Cu
If a large amount of T is contained, problems such as high-temperature embrittlement and deterioration of hot workability will occur.Furthermore, T.
(H↑'7) is added as a deoxidizing agent and has the advantage of improving intergranular corrosion resistance, so it can be added and contained in a proportion not exceeding 1%. but,
Addition of Ti exceeding 1% is not desirable because problems such as high-temperature embrittlement and deterioration of pitting corrosion resistance occur. Further, Nb (optional) is added in a proportion not exceeding 1% in order to improve high temperature strength and intergranular corrosion resistance. Note that addition of a large amount of Nb causes problems such as high-temperature embrittlement and deterioration of weld cracking properties, which is not preferable. Moreover, these Mo, Cu, Ti, and Nb can be added in combination, but when two or more of these types are added, it is desirable that the total amount does not exceed 7%.
そしてまた、本発明にあっては、特に上記化学組成の本
発明に従う溶接線材に、更にＣａ（カルシウム）１Ｍｇ
（マグネシウム）、Ｂ（ホウ素）並びにＲＥＭ（稀土類
元素）のうち少なくとも１種を添加せしめることにより
、溶接部において生じるスラグの剥離、５性が、前記８
，０，８ｉ、Ｍｎの所定量の配合と租俟って更に一層改
善され得る １のである。さらに、このような
Ｃａ、、Ｍｇ、Ｂ。Furthermore, in the present invention, in particular, the welding wire according to the present invention having the above-mentioned chemical composition further includes 1Mg of Ca (calcium).
By adding at least one of (magnesium), B (boron), and REM (rare earth element), the peeling of slag that occurs in the weld zone and the
, 0,8i, and Mn in predetermined amounts can be further improved. Furthermore, such Ca, Mg, B.
ＲＥＭは、熱間加工性、耐溶接割れ性、高温強度の向上
等にも寄与するものである。そして、これらの効果の達
成のために、上記元素の１種若しくは２種以上が用いら
れる場合にあっても、合計して０．５％を越えない割合
で用いることが望ましい。REM also contributes to improvements in hot workability, weld cracking resistance, high-temperature strength, etc. In order to achieve these effects, even if one or more of the above elements are used, it is desirable that they be used in a proportion that does not exceed 0.5% in total.
なお、それらＣａ、Ｍｇなどを合計量で０．５％を越え
る量で添加、含有せしめると、熱間加工性を劣化させた
り、溶接アークを不安定にするなどの問題を生じ、望ま
しくない。It should be noted that if Ca, Mg, etc. are added or contained in a total amount exceeding 0.5%, problems such as deterioration of hot workability and unstable welding arc occur, which is not desirable.
以下に、本発明を更に具体的に説明するために実施例を
示すが、本発明がかかる実施例の記載によって何らの制
限をも受けるものではないことは言うまでもないところ
である。なお、実施例中の百分率は、特に断わりのない
限り、重量基準で示すこととする。Examples will be shown below to more specifically explain the present invention, but it goes without saying that the present invention is not limited in any way by the description of the examples. Note that the percentages in the examples are expressed on a weight basis unless otherwise specified.
実施例 １
第１表に示す成分組成を有し、残部が鉄並びに不可避的
不純物であるステンレス鋼を２トンの溶解炉で溶解せし
めた後、鋼塊を製造し、次いで常法に従って鍛造、圧延
、線引を行なって線径１．２即の溶接ワイヤを得た。Example 1 Stainless steel having the composition shown in Table 1, with the remainder being iron and unavoidable impurities, was melted in a 2-ton melting furnace, then a steel ingot was produced, and then forged and rolled according to conventional methods. Then, wire drawing was performed to obtain a welding wire with a wire diameter of 1.2 mm.
そして、かくして得られた成分組成の異なる各種の溶接
ワイヤを用いて、第２表に示す下向溶接条件及び第３表
に示す立向上進隅肉溶接条件により、アーク溶接を行な
い、その溶接部に生成した ゛ビード形状の評価
を行なった。なお、ビード形状値（Ｉ（／Ｗ）はビード
巾（Ｗ）に対する余盛高さくＨ）で示される数値であっ
て、通常、第２表における下向溶接条件にあっては、そ
の値（α）がｏ、ａｏｏより小さいときにビード形状が
良好とされ、また第３表における立向上進隅肉溶接にあ
っでは、その値（β）が０．２５０より小さいときに良
好と考えられている。Using various welding wires having different compositions thus obtained, arc welding was performed under the downward welding conditions shown in Table 2 and the vertical upward fillet welding conditions shown in Table 3. We evaluated the bead shape generated. Note that the bead shape value (I (/W) is the value indicated by the reinforcement height H relative to the bead width (W)), and normally, under the downward welding conditions in Table 2, the value (I (/W) is The bead shape is considered to be good when α) is smaller than o and aoo, and in the case of vertical advance fillet welding in Table 3, the bead shape is considered to be good when the value (β) is smaller than 0.250. There is.
また、プローホール溶接割れ評価については、第４表に
従う条件下でアーク溶接を行ない、その評価を行なった
。Further, regarding the evaluation of plowhole weld cracking, arc welding was performed under the conditions shown in Table 4, and the evaluation was performed.
そして、また腐食減量評価については、第４表に従う条
件下で溶接されたものをＪ Ｉ ５−Ｚ−８３２１の方
法により試験片を採取し、ＪＩＳ−Ｇ−０５９１に従う
５％■２Ｓ０４試験法によって求めた。For evaluation of corrosion weight loss, test pieces were taken using the method of JI 5-Z-8321 after welding under the conditions shown in Table 4, and test pieces were taken using the 5% 2S04 test method according to JIS-G-0591. I asked for it.
かくして得られた結果、即ち線材の加工性、し−ド形状
値（α、β）、溶接割れ性、ブローホール、腐食減量の
結果を第５表にまとめて示した。Table 5 summarizes the results thus obtained, ie, wire workability, wire shape values (α, β), weld cracking resistance, blowholes, and corrosion weight loss.
第５表の結果から明らかなように、本発明に従う隘１９
〜２９の溶接ワイヤは、何れも線材加１：性が良好であ
ることは勿論、下向溶接条件下並び立向上進隅肉溶接条
件下においても、何れも優れたビード形状、即ちビード
巾に対する余盛高さが小さく、溶接割れやブローホール
もなく、腐食減量にあってもその数値が低く、良好な耐
食性を示すものであった。As is clear from the results in Table 5, the number 19 according to the present invention
All of the welding wires No. 29 to 29 not only have good wire strength, but also excellent bead shape, i.e., excellent bead width, even under downward welding conditions and vertical upward fillet welding conditions. The height of the excess buildup was small, there were no weld cracks or blowholes, and even if there was corrosion loss, the numerical value was low, indicating good corrosion resistance.
これに対して、本発明の成分組成から外れた市販材或い
は比較材であるｆｆ１１〜１８のワイヤにあっては、ビ
ード形状が悪かったり、溶接割れ、ブローホール或いは
腐食減量の何れかにおいて、何らかの問題を有している
のであ・名。On the other hand, wires with ff11 to 18, which are commercially available materials or comparative materials that differ from the composition of the present invention, have some kind of problem, such as poor bead shape, weld cracks, blowholes, or corrosion loss. Name because I have a problem.
第 ２ 表
第 ８ 表
第 ４ 表
第 ５ 表
実施例 ２
下記第６表に示される各種成分組成を有し、残部が鉄で
あるステンレス鋼から、実施例１の方法に従って、それ
ぞれ溶接ワイヤを作製した後、実施例１の評価方法に従
って、線材加工性、ビード形状、溶接割れ、ブローホー
ル、腐食減量について評価し、その結果を下記第７表に
示した。Table 2 Table 8 Table 4 Table 5 Table 5 Example 2 Welding wires were produced from stainless steel having various component compositions shown in Table 6 below, the balance being iron, according to the method of Example 1. Thereafter, wire workability, bead shape, weld cracking, blowholes, and corrosion weight loss were evaluated according to the evaluation method of Example 1, and the results are shown in Table 7 below.
下記第７表より明らかなように、本発明に従う組成の溶
接ワイヤに対して、更に銅、モリブデン。As is clear from Table 7 below, copper and molybdenum are further added to the welding wire having the composition according to the present invention.
チタン、ニオブの少なくとも何れか一種を添加採用する
ことによって、腐食減量が著しく向上されていることが
理解できるのである。It can be seen that the corrosion weight loss is significantly improved by adding at least one of titanium and niobium.
実施例 ３
下記第８表に示される合金成分組成のステンレス鋼から
、実施例１の手法に従って各種の溶接ワイヤを作製し、
更にかかる各種の溶接ワイヤを用いて、それぞれ実施例
１の手法に従って溶接を行ない、各種特性を評価し、そ
の結果を下記第９表に示した。Example 3 Various welding wires were produced from stainless steel having the alloy composition shown in Table 8 below according to the method of Example 1,
Furthermore, welding was performed using the various welding wires according to the method of Example 1, and various characteristics were evaluated, and the results are shown in Table 9 below.
なお、本実施例は、ＲＥＭ、Ｍｇ、Ｃａ、Ｂ（７）添加
効果をみたものであり、また更にそれらにモリブデン等
の元素を添加し、その添加効果を調べたものである。In this example, the effect of adding REM, Mg, Ca, and B(7) was observed, and the effect of adding elements such as molybdenum was also investigated.
第９表の結果から明らかなように、ＲＥＭ、Ｍｇ。As is clear from the results in Table 9, REM, Mg.
Ｃａ、Ｂの少なくとも何れか一種の元素が配合されるこ
とによって、アークの安定性は向上され、またスラグの
面積率が小さくなって、スラグの剥離性が著しく改善さ
れているｑとがわかるのであ：１す
る。加えて、モリブデンが添加されたときには、実施例
２において証明されたように、腐食減量値が著しく低下
し、耐食性が向上せしめられることがわかるのである。It can be seen that by blending at least one of the elements Ca and B, the stability of the arc is improved, and the area ratio of the slag is reduced, and the peelability of the slag is significantly improved. A: 1. In addition, when molybdenum is added, as demonstrated in Example 2, the corrosion loss value is significantly reduced and corrosion resistance is improved.
Claims (1)
０〜１．５０％、Ｍｎ ： １．１０〜２．６０ ％、
Ｎｉ：ｆｉＯ〜２＆０％、Ｃｒ ： １２．０〜Ｂ ２
．．０％、Ｓ二〇、００８〜００５０％、０：０００５
０〜００４０％、Ｎ ： ０．０６％以下を含有し、且
つＭ ｎ ／ Ｓ Ｉの含量比が１．３〜＆Ｏの範囲内
よなる、残部がＦｅおよび不可避的不純物よりなる溶接
性に優れたステンレス鋼溶接線材。 （２１重量で、ａｏ％以下のＭｏＸ、５０％％以下のＣ
ｕＸ ｌ、０４以下のＮｂ及び１．０％以下）Ｔｉのう
ち、少なくとも１種を更に含む（但し、２種以上含有す
る場合には、その合計量が７％以下である）特許請求の
範囲第１項記載の溶接線材。 （３１重ｇｔ テ、Ｃ：（，２０％以下、８ｉ：Ｑ８０
〜１．５０％、Ｍｎ ： １．１０〜２．６０％、Ｎｉ
Ｈ６０〜２ＦＬＯ％、Ｃｒ ： ｌ ２．０〜８２．
０ ％、Ｓ：ＱＯ０８〜００５０％、０ ： Ｏ，ＯＯ
５０〜（１０４０チ、Ｎ ： ０．０６％以丁を含有し
、且つＭ ｎ ／ ８ ｉの含量比が１．３〜＆０の範
囲内となると共に、１３ＸＣａＸＭｇ及び稀土類元素か
らなる群より選ばれた少なくとも１種が０５％を越えな
い割合で含有される、残部がＦｅおよび不可避的不純物
よりなる溶接性に優れたステンレス鋼溶接線材。 （４）重量で、５０％以下のＭＯ１５，０％以下のＣｕ
、１．０％以下のＮｂ及び１．０％以下ノＴｌのうち、
少なくとも１種を更に含む（但し、２種以上含有する場
合には、その合計量が７％以下である）特許請求の範囲
第３項記載の溶接線材。[Claims] (1) By weight, C: 0.20% or less, 5iHQ8
0-1.50%, Mn: 1.10-2.60%,
Ni: fiO~2&0%, Cr: 12.0~B2
．． ．． 0%, S20, 008-0050%, 0:0005
0~0040%, N: 0.06% or less, and the content ratio of Mn/SI is within the range of 1.3~&O, with the balance being Fe and inevitable impurities. Excellent weldability. stainless steel welded wire rod. (At 21 weight, MoX less than ao%, C less than 50%%
uX l, Nb of 04 or less, and Ti (1.0% or less), which further contains at least one type (however, if two or more types are contained, the total amount thereof is 7% or less) Claims The welding wire rod according to item 1. (31 heavy gt Te, C: (, 20% or less, 8i: Q80
~1.50%, Mn: 1.10~2.60%, Ni
H60~2FLO%, Cr: l 2.0~82.
0%, S: QO08~0050%, 0: O, OO
50~(1040chi, N: 0.06% or more), and the content ratio of Mn/8i is within the range of 1.3~&0, and is selected from the group consisting of 13XCaXMg and rare earth elements. A stainless steel welding wire rod with excellent weldability, containing at least one of the following elements in a proportion not exceeding 0.5%, and the remainder consisting of Fe and unavoidable impurities. (4) MO15.0% with an MO of 50% or less by weight. The following Cu
, 1.0% or less Nb and 1.0% or less Tl,
The welding wire according to claim 3, further comprising at least one type (however, if two or more types are contained, the total amount thereof is 7% or less).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8456082A JPS58202993A (en) | 1982-05-19 | 1982-05-19 | Welding wire rod of stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8456082A JPS58202993A (en) | 1982-05-19 | 1982-05-19 | Welding wire rod of stainless steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58202993A true JPS58202993A (en) | 1983-11-26 |
| JPH044079B2 JPH044079B2 (en) | 1992-01-27 |
Family
ID=13834026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8456082A Granted JPS58202993A (en) | 1982-05-19 | 1982-05-19 | Welding wire rod of stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58202993A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60130496A (en) * | 1983-12-20 | 1985-07-11 | Mitsubishi Heavy Ind Ltd | Stainless steel welding material |
| JPS62183994A (en) * | 1986-02-10 | 1987-08-12 | Nippon Steel Corp | Wire for gas shielded arc welding of stainless steel |
| US5254836A (en) * | 1987-04-27 | 1993-10-19 | Toyota Jidosha Kabushiki Kaisha | Method of arc welding with a ferrite stainless steel welding rod |
| FR2756764A1 (en) * | 1996-12-09 | 1998-06-12 | Sprint Metal Sa | Welding electrode |
| EP0909830A1 (en) * | 1997-10-14 | 1999-04-21 | Inco Alloys International, Inc. | Hot working high chromium alloy |
| DE19748149B4 (en) * | 1996-10-31 | 2006-02-09 | Inco Alloys International, Inc., Huntington | Use of a nickel-based alloy |
| CN102554506A (en) * | 2012-01-28 | 2012-07-11 | 孟庆连 | Brazing filler metal for hot-rolling brazing |
| CN102634739A (en) * | 2012-05-03 | 2012-08-15 | 江苏锦越航空合金材料有限公司 | Corrosion-resisting stainless steel and manufacturing process thereof |
| CN102634741A (en) * | 2012-05-03 | 2012-08-15 | 江苏锦越航空合金材料有限公司 | High-temperature heat-resistant and corrosion-resistant stainless steel and manufacturing method thereof |
| JP2015110240A (en) * | 2013-10-30 | 2015-06-18 | 新日鐵住金株式会社 | Welding consumable for austenitic heat-resistant steel and weld metal and welded joint obtained by using the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004195542A (en) * | 2002-12-20 | 2004-07-15 | Jfe Steel Kk | Steel wire for gas shielded arc welding |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5464038A (en) * | 1977-10-31 | 1979-05-23 | Nippon Steel Corp | Nb-stabilized austenite-stainless-steel inert-gas arc- welding-wire having good weldability |
-
1982
- 1982-05-19 JP JP8456082A patent/JPS58202993A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5464038A (en) * | 1977-10-31 | 1979-05-23 | Nippon Steel Corp | Nb-stabilized austenite-stainless-steel inert-gas arc- welding-wire having good weldability |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60130496A (en) * | 1983-12-20 | 1985-07-11 | Mitsubishi Heavy Ind Ltd | Stainless steel welding material |
| JPH0375278B2 (en) * | 1983-12-20 | 1991-11-29 | ||
| JPS62183994A (en) * | 1986-02-10 | 1987-08-12 | Nippon Steel Corp | Wire for gas shielded arc welding of stainless steel |
| US5254836A (en) * | 1987-04-27 | 1993-10-19 | Toyota Jidosha Kabushiki Kaisha | Method of arc welding with a ferrite stainless steel welding rod |
| DE19748149B4 (en) * | 1996-10-31 | 2006-02-09 | Inco Alloys International, Inc., Huntington | Use of a nickel-based alloy |
| FR2756764A1 (en) * | 1996-12-09 | 1998-06-12 | Sprint Metal Sa | Welding electrode |
| EP0909830A1 (en) * | 1997-10-14 | 1999-04-21 | Inco Alloys International, Inc. | Hot working high chromium alloy |
| US6106643A (en) * | 1997-10-14 | 2000-08-22 | Inco Alloys International, Inc. | Hot working high-chromium alloy |
| CN102554506A (en) * | 2012-01-28 | 2012-07-11 | 孟庆连 | Brazing filler metal for hot-rolling brazing |
| CN102634739A (en) * | 2012-05-03 | 2012-08-15 | 江苏锦越航空合金材料有限公司 | Corrosion-resisting stainless steel and manufacturing process thereof |
| CN102634741A (en) * | 2012-05-03 | 2012-08-15 | 江苏锦越航空合金材料有限公司 | High-temperature heat-resistant and corrosion-resistant stainless steel and manufacturing method thereof |
| JP2015110240A (en) * | 2013-10-30 | 2015-06-18 | 新日鐵住金株式会社 | Welding consumable for austenitic heat-resistant steel and weld metal and welded joint obtained by using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH044079B2 (en) | 1992-01-27 |
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