JP2915497B2 - Aluminum alloy for welding with excellent stress corrosion cracking resistance - Google Patents

Aluminum alloy for welding with excellent stress corrosion cracking resistance

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Publication number
JP2915497B2
JP2915497B2 JP14025790A JP14025790A JP2915497B2 JP 2915497 B2 JP2915497 B2 JP 2915497B2 JP 14025790 A JP14025790 A JP 14025790A JP 14025790 A JP14025790 A JP 14025790A JP 2915497 B2 JP2915497 B2 JP 2915497B2
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JP
Japan
Prior art keywords
weight
stress corrosion
corrosion cracking
welding
cracking resistance
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.)
Expired - Fee Related
Application number
JP14025790A
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Japanese (ja)
Other versions
JPH0432534A (en
Inventor
富晴 沖田
建 松岡
和美 加藤
富士夫 村田
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Furukawa Electric Co Ltd
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Furukawa Electric Co Ltd
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Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は,圧延材,押出材,鍛造材として溶接構造材
に用いられる高力アルミニウム合金に関し,さらに詳し
くは,耐応力腐食割れ牲に優れた溶接用Al−Mg−Mn系ア
ルミニウム合金に関する。
Description: TECHNICAL FIELD The present invention relates to a high-strength aluminum alloy used for a welded structural material as a rolled material, an extruded material, and a forged material, and more particularly, to a material excellent in stress corrosion cracking resistance. Al-Mg-Mn alloys for welding.

〔従来の技術とその課題〕[Conventional technology and its problems]

従来、建築・土木、自動車、車両、船舶、容器・配
管,金型等においては、中強度で加工牲が良く、耐食
性、溶接性の良好なAl−Mg系合金であるA5052やAl−Mg
−Mn系合金であるA5083、5456等が多く使用されてい
た。これらのMgを主添加元素とするアルミニウム合金
は、Mg量が増加するに従って強度は向上するが、3.5%
を越えると66℃以上の腐食環境では応力腐食割れや剥離
腐食が発生する危険があり、又、圧延、押出、鍛造等の
熱間加工性も劣化してくる。低Mg含有合金であるA5052
等は応力腐食割れの心配は無いものの、強度が低いため
高Mg含有合金に比べて厚い材料を使用しなければなら
ず、又、3.5%を越えるMgを含有するA5083や5456合金等
は応力腐食割れの懸念がある。近年、これらの建築・土
木、自動車、車両、船舶、容器・配管、金型等の構造物
は、益々薄肉軽量化へ進んでおり、それに伴って強度が
高く、しかも溶接が可能で応力腐食割れの心配ないアル
ミニウム合金の要求が高まってきている。
Conventionally, in construction and civil engineering, automobiles, vehicles, ships, vessels and pipes, molds, etc., A5052 and Al-Mg, which are Al-Mg alloys with medium strength, good workability, good corrosion resistance, and good weldability
-Mn-based alloys such as A5083 and 5456 were often used. The strength of these aluminum alloys containing Mg as the main additive element increases with an increase in the amount of Mg.
If the temperature exceeds 66 ° C., stress corrosion cracking or exfoliation corrosion may occur in a corrosive environment at 66 ° C. or higher, and the hot workability such as rolling, extrusion, forging, etc. also deteriorates. A5052 which is a low Mg content alloy
Although there is no concern about stress corrosion cracking, the strength is low, so a thicker material must be used than the alloy containing high Mg, and A5083 and 5456 alloys containing more than 3.5% Mg have stress corrosion. There is a fear of cracking. In recent years, these structures, such as construction, civil engineering, automobiles, vehicles, ships, containers and piping, and dies, have become increasingly thinner and lighter, and accordingly, have higher strength, weldability, and stress corrosion cracking. Demands for aluminum alloys that are not a concern are increasing.

しかし、上記のごとく従来の技術では薄肉化へ対応で
きる強度、耐応力腐食割れ性、溶接性の全ての面で満足
が得られ、しかも押出、圧延、鍛造等の成形性にも優れ
たアルミニウム合金を得ることは甚だ困難であった。
However, as described above, the conventional technology is satisfactory in all aspects of strength, stress corrosion cracking resistance, and weldability that can respond to thinning, and is also excellent in formability such as extrusion, rolling, forging, etc. Was extremely difficult to obtain.

〔発明が解決しようとする課題〕[Problems to be solved by the invention]

本発明は,従来の技術では解決できなかった,強度,
耐応力腐食割れ性,溶接性の全ての面で満足が得られ,
しかも,押出,圧延,鍛造等の成形性にも優れた材料を
提供することを目的とするものである。
The present invention provides strength,
Satisfaction was obtained in all aspects of stress corrosion cracking resistance and weldability.
Moreover, it is an object of the present invention to provide a material excellent in formability such as extrusion, rolling, and forging.

〔課題を解決するための手段〕[Means for solving the problem]

本発明者らは,前述の様な事情に着目し,上記したご
とき,強度,耐応力腐食割れ性,溶接性の全ての面で満
足が得られ,しかも,押出,圧延,鍛造等の成形性にも
優れたアルミニウム合金の開発を期して,合金成分の種
類,含有率を変えて,種々検討した。その結果,下記の
ごとく合金成分の種類,含有率を特定してやれば上記の
目的を達成できることを見出し,本発明の完成をみた。
The present inventors have paid attention to the above-mentioned circumstances, and as described above, have been satisfied in all aspects of strength, stress corrosion cracking resistance, and weldability, and furthermore, have obtained formability such as extrusion, rolling, and forging. With the aim of developing an aluminum alloy that is superior in quality, various studies were conducted by changing the type and content of alloy components. As a result, the inventors have found that the above objects can be achieved by specifying the types and contents of alloy components as described below, and have completed the present invention.

即ち,本発明に係る耐応力腐食割れに優れる溶接用ア
ルミニウム合金の構成とは、Mg3.0〜6.0重量%、Mn0.32
〜1.5重量%、Cr0.03〜0.5重量%、Cu0.03〜1.0重量
%、Fe+Si0.1〜1.5重量%で、かつFe/Si>2を必須成
分とし、さらにMo0.03〜0.5重量%、V0.01〜0.2重量
%、希土類元素又はミッシュメタル0.03〜5.0重量%の
うちの少なくとも1種または2種以上を含み、残りアル
ミニウム及び不可避不純物からなるところが要旨であ
り、また、他の発明は、Mg3.0〜6.0重量%、Mn0.32〜1.
5重量%、Cr0.03〜0.5重量%、Cu0.03〜1.0重量%、Ag
0.03〜1.0重量%,Fe+Si0.1〜1.5重量%で、かつFe/Si
>2を必須成分とし、さらにMo0.03〜0.5重量%、V0.01
〜0.2重量%、希土類元素又はミッシュメタル0.03〜5.0
重量%のうちの少なくとも1種または2種以上を含み、
残りアルミニウム及び不可避不純物からなるところが要
旨である。
That is, the composition of the welding aluminum alloy excellent in stress corrosion cracking resistance according to the present invention is defined as Mg 3.0 to 6.0 wt%, Mn 0.32
1.5 to 1.5% by weight, Cr 0.03 to 0.5% by weight, Cu 0.03 to 1.0% by weight, Fe + Si 0.1 to 1.5% by weight, and Fe / Si> 2 as essential components, and Mo 0.03 to 0.5% by weight. V contains at least one or more of 0.01 to 0.2% by weight of a rare earth element or 0.03 to 5.0% by weight of a rare earth element or a misch metal, and the gist is that the balance consists of aluminum and unavoidable impurities. Mg 3.0-6.0% by weight, Mn 0.32-1.
5% by weight, Cr 0.03-0.5% by weight, Cu 0.03-1.0% by weight, Ag
0.03 ~ 1.0wt%, Fe + Si 0.1 ~ 1.5wt% and Fe / Si
> 2 as essential components, Mo0.03-0.5% by weight, V0.01
~ 0.2% by weight, rare earth element or misch metal 0.03 ~ 5.0
At least one, or two or more, by weight of
The gist consists of the remaining aluminum and unavoidable impurities.

すなわち本発明は、Al−Mg−Mn系合金のFeとSiの量と
割合を調整し、Cuを添加することにより耐溶接割れ性、
耐応力腐食割れ性を向上し、強度を高めたものであり、
また他の発明は、Al−Mg−Mn系合金のFeとSiの量と割合
を調整し、Ag及びCuを添加することにより耐溶接割れ
性、耐応力腐食割れ性を向上し、強度を高めたものであ
る。
That is, the present invention adjusts the amounts and proportions of Fe and Si in the Al-Mg-Mn-based alloy, and by adding Cu, weld crack resistance,
It has improved stress corrosion cracking resistance and increased strength,
Another invention is to adjust the amounts and proportions of Fe and Si in an Al-Mg-Mn-based alloy, and to improve the welding crack resistance and stress corrosion cracking resistance by adding Ag and Cu, thereby increasing the strength. It is a thing.

〔作用〕[Action]

本発明に係る上記アルミニウム合金の成分の種類と含
有率の限定理由について説明すると次のとおりである。
The reasons for limiting the types and contents of the components of the aluminum alloy according to the present invention will be described below.

Mgは、強度向上に不可欠な元素であり、含有量が3.0
重量%未満では充分な強度が得られず、6.0重量%を越
えて含有されると耐応力腐食割れ性、加工性が極度に劣
化し、微量添加元素による改善は難しい。よって、Mgの
最も好ましい含有量は3.0〜6.0重量%である。
Mg is an element indispensable for improving strength, and its content is 3.0
If the content is less than 6.0% by weight, sufficient strength cannot be obtained. If the content exceeds 6.0% by weight, stress corrosion cracking resistance and workability are extremely deteriorated, and it is difficult to improve by a small amount of added element. Therefore, the most preferable content of Mg is 3.0 to 6.0% by weight.

Mnは、Mgと同様に強度向上に不可欠な元素であり、ま
た、耐応力腐食割れ性を向上させる元素であり、含有量
が0.32重量%未満ではその効果が少なく、1.5重量%を
越えて含有させると加工牲、溶接性が劣化する。よって
Mnの最も好ましい含有量は0.32〜1.5重量%である。
Mn is an element indispensable for strength improvement like Mg, and also an element that improves stress corrosion cracking resistance. Its effect is small when the content is less than 0.32% by weight, and exceeds 1.5% by weight. If it is made, workability and weldability deteriorate. Therefore
The most preferred content of Mn is 0.32 to 1.5% by weight.

Crは、強度や耐応力腐食割れ牲を向上させる元素であ
り、含有量が0.03重量%未満ではその効果が少なく、0.
5重量%を越えて含有されると加工性や靱性を劣化させ
る。よってCrの好ましい含有量は0.03〜0.5重量%であ
る。
Cr is an element that improves strength and stress corrosion cracking resistance, and its effect is small when its content is less than 0.03% by weight,
If the content exceeds 5% by weight, workability and toughness are deteriorated. Therefore, the preferable content of Cr is 0.03 to 0.5% by weight.

Cuは、耐応力腐食割れ性を向上させる元素であり、含
有量が0.03重量%未満ではその効果が少なく、1.0重量
%を越えて含有されると溶接性が劣化する。よって、Cu
の最も好ましい含有量は0.03〜1.0重量%である。
Cu is an element for improving the stress corrosion cracking resistance. If its content is less than 0.03% by weight, its effect is small, and if it exceeds 1.0% by weight, the weldability deteriorates. Therefore, Cu
Is most preferably 0.03 to 1.0% by weight.

FeとSiは、溶接性を向上させる元素であるが、含有量
がFe+Siとして0.1重量%未満ではその効果が少なく、
1.5重量%を越えて含有されると靱性、加工性が劣化す
る。また、Fe/Si比が2未満では溶接性を向上させる効
果が少ない。よって、FeとSiの最も好ましい含有量はFe
+Si0.1〜1.5重量%、かつFe十Si2である。
Fe and Si are elements that improve the weldability, but the effect is small if the content is less than 0.1% by weight as Fe + Si,
If the content exceeds 1.5% by weight, toughness and workability deteriorate. When the Fe / Si ratio is less than 2, the effect of improving the weldability is small. Therefore, the most preferable content of Fe and Si is Fe
+ Si 0.1 to 1.5% by weight and Fe 10 Si 2.

Vは、耐応力腐食割れ性、耐溶接割れ性を改善する元
素であり、含有量が0.01重量%未満ではその効果が少な
く、0.2重量%を越えて含有させると靱性が劣化する。
よってVの好ましい含有量は0.01〜0.2重量%である。
V is an element that improves the resistance to stress corrosion cracking and the resistance to welding cracking. If the content is less than 0.01% by weight, its effect is small, and if it exceeds 0.2% by weight, the toughness deteriorates.
Therefore, the preferable content of V is 0.01 to 0.2% by weight.

希土類元素又はミッシュメタルは,耐応力腐食割れ性
及び耐溶接割れ性を向上させるものであり,含有量が0.
03重量%未満では,その効果が少なく,5.0重量%を越え
ると合金中に粗大晶出物が生成し,強度を劣化させる。
よって稀土類元素又はミッシュメタルの最も好ましい含
有量は0.03〜5.0重量%である。尚,稀土類元素として
は,La,Ce,Pr,Nd,Sm等,又.ミッシュメタルとしてはCe,
Laを主成分とする合金で.通常Ce45〜50重量%,La20〜4
0重量%,残部その他の稀土類元素(Nd,Sm,Pr等)から
なり,稀土類元素,ミッシュメタルいずれも同等の効果
を示すも,稀土類元素単体は高価であり,ミッシュメタ
ルとして添加する方が経済的に有利である。
Rare earth elements or misch metals improve stress corrosion cracking resistance and weld cracking resistance.
If the content is less than 03% by weight, the effect is small, and if the content exceeds 5.0% by weight, coarse crystals are formed in the alloy and the strength is deteriorated.
Therefore, the most preferable content of the rare earth element or the misch metal is 0.03 to 5.0% by weight. The rare earth elements include La, Ce, Pr, Nd, Sm, etc. Ce as a misch metal,
An alloy mainly composed of La. Usually Ce45-50% by weight, La20-4
0% by weight, the balance is composed of other rare earth elements (Nd, Sm, Pr, etc.). Both rare earth elements and misch metals have the same effect, but rare earth elements alone are expensive and must be added as misch metal. Is more economically advantageous.

Moは、組織を安定化させ、溶接割れを防止するために
含有させる元素であり、含有量がMo0.03重量%未満では
結晶粒微細化の効果が少なく、割れ防止に効果がなく、
またMo0.5重量%を越えて含有されると巨大化合物が発
生し、靱性、加工性を劣化させる危険がある。したがっ
て好ましい範囲はMo0.5重量%である。
Mo is an element contained to stabilize the structure and prevent welding cracks. If the content is less than 0.03% by weight of Mo, the effect of refining the crystal grains is small, and there is no effect in preventing cracks.
If Mo is contained in an amount exceeding 0.5% by weight, a giant compound is generated, and there is a risk that toughness and workability are deteriorated. Therefore, a preferable range is 0.5% by weight of Mo.

また他の発明に添加される、Agは、耐応力腐食割れ性
及び強度を向上させる元素であり、含有量が0.03重量%
未満ではその効果が少なく、1.0重量%を越えて含有さ
せると溶接性が劣化する。
Ag added to other inventions is an element that improves stress corrosion cracking resistance and strength, and has a content of 0.03% by weight.
If it is less than 1.0%, the effect is small, and if it exceeds 1.0% by weight, the weldability deteriorates.

よってAgの最も好ましい含有量は0.03〜1.0重量%で
ある。その他の成分は上記と同様の作用をなすものであ
る。
Therefore, the most preferable content of Ag is 0.03 to 1.0% by weight. Other components have the same effect as described above.

〔実施例〕〔Example〕

以下に本発明の一実施例について説明する。 Hereinafter, an embodiment of the present invention will be described.

第1表及び第2表に示す本発明合金、比較材、及び従
来合金の組成の合金を半連続水冷鋳造装置を用いて押出
用鋳塊(9インチ径)に鋳造した。この9インチ径の棒
状鋳塊を530℃で12時間均質化処理した後、450℃に加熱
して押出機によって、それぞれ厚さ5mm、幅100mmの平角
材に押出した。押出加工するに際して、前記平角材が表
面欠陥や割れ発生が無く押出し得る最高押出速度をもっ
て、各合金の押出性の良否を評価した。その結果を第2
表に示す。各々の材料は押出後、1%以下の引張整直を
行い矯正した。
The alloys of the present invention, comparative materials, and conventional alloys shown in Tables 1 and 2 were cast into an ingot for extrusion (9-inch diameter) using a semi-continuous water-cooled casting apparatus. The 9-inch diameter bar-shaped ingot was homogenized at 530 ° C. for 12 hours, heated to 450 ° C., and extruded by an extruder into a rectangular material having a thickness of 5 mm and a width of 100 mm. At the time of extrusion, the extrudability of each alloy was evaluated at the maximum extrusion speed at which the rectangular material could be extruded without surface defects or cracks. The result is
It is shown in the table. After extrusion, each material was straightened by tension straightening of 1% or less.

このようにして製造した材料について、引張試験、応
力腐食割れ試験、及び溶接割れ試験を行った結果を第3
表および第4表に併記した。なお、試験方法を下記に示
す。
The results of the tensile test, stress corrosion cracking test, and weld cracking test for the material thus manufactured
Both are shown in Tables and Table 4. The test method is shown below.

〔試験方法〕〔Test method〕

(1)加工性(押出性) (a)押出条件 :鋳塊サイズ……9インチ径(219mm
φ) 押出温度……450℃ (b)押出サイズ:5mm×l00mm (c)評価方法 :押出速度が5456と同等か否かにより
判定した。
(1) Workability (extrusion) (a) Extrusion conditions: ingot size ... 9 inch diameter (219 mm
φ) Extrusion temperature 450 ° C. (b) Extrusion size: 5 mm × 100 mm (c) Evaluation method: Judgment was made based on whether or not the extrusion speed was equivalent to 5456.

○……5456の限界押出速度と同等又は
それ以上 ×……5456の限界押出速度未満 (2)引張試験 (a)試験片 :JIS Z 2201の5号試験片 (b)試験方法 :アムスラー万能試験機,JIS Z 2241
に基づき試験する。
○: Equal to or higher than the limit extrusion speed of 5456 ×: Less than the limit extrusion speed of 5456 (2) Tensile test (a) Test piece: JIS Z 2201 No. 5 test piece (b) Test method: Amsler universal test Machine, JIS Z 2241
Test based on

(c)測定値 :引張強さ,耐力,伸びを測定し,次
の基準で判定する。
(C) Measured value: Measure tensile strength, proof stress, and elongation, and judge according to the following criteria.

○……引張強さ30kgf/mm2以上 ×……引張強さ30kgf/mm2未満 (3)応力腐食割れ試験 (a)試験片 :JIS H 8711の1号試験片 (b)試験方法 :JIS H 8711に基づく。○: tensile strength 30 kgf / mm 2 or more ×: tensile strength less than 30 kgf / mm 2 (3) Stress corrosion cracking test (a) Test piece: No. 1 test piece of JIS H 8711 (b) Test method: JIS Based on H 8711.

増感処理……180℃×1000時間加熱 応力負荷……1号試験片用ジグを用い
て耐力の75%を負荷試験液,浸漬…3.5%NaCl液,交互
浸漬(周期10分浸漬,50分乾燥)30日間 (c)評価 :応力腐食割れ発生の有無観察 ×……割れ発生 ○……割れ発生せず (4)溶接割れ試験 (a)試験片 :第1図に示す,フィッシュボーン形
試験片 (b)溶接条件 :溶接方法……TIG 溶加材……使用せず 電極……トリウム入りタングステン
棒,3.2mmφ 溶接電流……180A アーク電圧……19V 溶接速度……30cm/min アルゴンガス流量……10l/min (c)割れ評価 :割れ長さ測定し,次の基準で判定す
る。
Sensitizing treatment: Heating at 180 ° C for 1000 hours Stress loading: Using a No. 1 test piece jig to load 75% of the proof stress test solution, immersion: 3.5% NaCl solution, alternate immersion (period immersion for 10 minutes, 50 minutes (Drying) 30 days (c) Evaluation: Observation of occurrence of stress corrosion cracking ×: Crack generation ○: No crack generation (4) Weld crack test (a) Test piece: Fishbone type test shown in Fig. 1 Piece (b) Welding conditions: Welding method: TIG filler material: Not used Electrode: Tungsten rod with thorium, 3.2 mmφ Welding current: 180 A Arc voltage: 19 V Welding speed: 30 cm / min Argon gas flow rate ... 10 l / min (c) Crack evaluation: Measure the crack length and judge it according to the following criteria.

○……割れ長さ30mm未満 ×……割れ長さ30mm以上 表の結果より,本発明例によるものはいずれも,押出
加工性,強度,耐応力腐食割れ性,溶接性の全てにおい
て優れていたのに対し,比較合金,特にFe、Si、Cu、Ag
などが本発明範囲外のもの及び従来合金はいずれかの特
性で劣っていた。
○: crack length less than 30 mm ×: crack length 30 mm or more From the results shown in the table, all of the examples according to the present invention were excellent in extrudability, strength, stress corrosion cracking resistance, and weldability, whereas the comparative alloys, especially Fe, Si, Cu, Ag
The alloys outside the scope of the present invention and the conventional alloys were inferior in any of the properties.

〔発明の効果〕〔The invention's effect〕

本発明においては,上述したところから既に理解しう
るように,溶接構造用アルミニウム合金として.従来合
金を凌ぐ強度、耐溶接割れ性を有し,かつ耐応力腐食割
れ性に優れており,しかも押出加工,圧延加工,鍛造加
工等の熱間加工性を保有した溶接構造用アルミニウム合
金を提供しうるものであり,従来合金による場合に比
べ,更に溶接構造材としての薄肉軽量化の要請に好適に
対応しうるものである。
In the present invention, as can be understood from the above, as an aluminum alloy for a welded structure. We offer aluminum alloys for welded structures that have strength, weld cracking resistance superior to conventional alloys, and excellent stress corrosion cracking resistance, and possess hot workability such as extrusion, rolling, and forging. Therefore, it is possible to more suitably cope with a demand for a thinner and lighter welded structural material as compared with a conventional alloy.

【図面の簡単な説明】[Brief description of the drawings]

第1図はフィッシュボーン形割れ試験片を示す平面図で
ある。 1……フィッシュボーン形割れ試験片 1a……溶接ビード 1b……溶接割れ 1c……割れ長さ 1d……溶接方向
FIG. 1 is a plan view showing a fishbone type cracked test piece. 1 ... Fishbone type crack test piece 1a ... Weld bead 1b ... Weld crack 1c ... Crack length 1d ... Welding direction

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−214163(JP,A) 特開 平1−198456(JP,A) (58)調査した分野(Int.Cl.6,DB名) C22C 21/00 - 21/18 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-214163 (JP, A) JP-A-1-198456 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) C22C 21/00-21/18

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】Mg3.0〜6.0重量%、Mn0.32〜1.5重量%、C
r0.03〜0.5重量%、Cu0.03〜1.0重量%、Fe+Si0.1〜1.
5重量%で、かつFe/Si>2を必須成分とし、さらにMo0.
03〜0.5重量%、V0.01〜0.2重量%、希土類元素又はミ
ッシュメタル0.03〜5.0重量%のうちの少なくとも1種
または2種以上を含み、残りアルミニウム及び不可避不
純物からなることを特徴とする耐応力腐食割れ性に優れ
た溶接用アルミニウム合金。
(1) Mg 3.0 to 6.0% by weight, Mn 0.32 to 1.5% by weight, C
r 0.03-0.5 wt%, Cu 0.03-1.0 wt%, Fe + Si 0.1-1.
5% by weight and Fe / Si> 2 as an essential component.
It is characterized by containing at least one or more of 03-0.5% by weight, V0.01-0.2% by weight, rare earth element or misch metal 0.03-5.0% by weight, and is made of aluminum and unavoidable impurities. Aluminum alloy for welding with excellent stress corrosion cracking properties.
【請求項2】Mg3.0〜6.0重量%、Mn0.32〜1.5重量%、C
r0.03〜0.5重量%、Cu0.03〜1.0重量%、Ag0.03〜1.0重
量%、Fe+Si0.1〜1.5重量%で、かつFe/Si>2を必須
成分とし、さらにMo0.03〜0.5重量%、V0.01〜0.2重量
%、希土類元素又はミッシュメタル0.03〜5.0重量%の
うちの少なくとも1種または2種以上を含み、残りアル
ミニウム及び不可避不純物からなることを特徴とする耐
応力腐食剤割れ性に優れた溶接用アルミニウム合金。
2. Mg 3.0 to 6.0% by weight, Mn 0.32 to 1.5% by weight, C
r 0.03 to 0.5% by weight, Cu 0.03 to 1.0% by weight, Ag 0.03 to 1.0% by weight, Fe + Si 0.1 to 1.5% by weight, and Fe / Si> 2 as essential components, and Mo 0.03 to 0.5 % Of V, 0.01 to 0.2% by weight, rare earth element or Mish metal 0.03 to 5.0% by weight, and at least one of aluminum and unavoidable impurities. Aluminum alloy for welding with excellent cracking properties.
JP14025790A 1990-05-30 1990-05-30 Aluminum alloy for welding with excellent stress corrosion cracking resistance Expired - Fee Related JP2915497B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14025790A JP2915497B2 (en) 1990-05-30 1990-05-30 Aluminum alloy for welding with excellent stress corrosion cracking resistance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14025790A JP2915497B2 (en) 1990-05-30 1990-05-30 Aluminum alloy for welding with excellent stress corrosion cracking resistance

Publications (2)

Publication Number Publication Date
JPH0432534A JPH0432534A (en) 1992-02-04
JP2915497B2 true JP2915497B2 (en) 1999-07-05

Family

ID=15264580

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2915497B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170304958A1 (en) * 2013-11-11 2017-10-26 Illinois Tool Works Inc. Aluminum welding filler metal, casting and wrought metal alloy

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170304958A1 (en) * 2013-11-11 2017-10-26 Illinois Tool Works Inc. Aluminum welding filler metal, casting and wrought metal alloy
US11267081B2 (en) * 2013-11-11 2022-03-08 Stephen L. Anderson Aluminum welding filler composition suitable for formation into wire used for fusion welding

Also Published As

Publication number Publication date
JPH0432534A (en) 1992-02-04

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