AMS 4000-4349 Aluminum
4102
Aluminum Alloy, Welding Wire — AMS 4102
4102 is highly resistant to chemical attack and weathering. It is a relatively soft alloy that is very formable and is used extensively in thin gauge and foil products. It has good welding characteristics and it is also used as a filler alloy for welding purposes. A desirable characteristic of the alloy is the bright finishes obtained by anodizing.
4180
Aluminum Alloy, Welding Wire — AMS 4180
Alloy 1100 is highly resistant to chemical attack and weathering. It is a relatively soft alloy that is very formable and is used extensively in thin gauge and foil products. It has good welding characteristics and it is also used as a filler alloy for welding purposes. A desirable characteristic of the alloy is the bright finishes obtained by anodizing.
4181
Aluminum Alloy, Welding Wire — Alloy 4008
Alloys 356.0 and A356.0 (Al-Si-Mg) are used in large quantities for sand and permanent mold castings. A variety of heat treatments can be used to produce the desired combinations of mechanical properties. Alloy A356.0 has a lower iron content than 356.0 which, in effect, affords higher tensile properties in premium quality castings. Alloy A356.0 filler wire is optimum for joining and repairing both 356.0 and A356.0 castings. Alloy A356.0, when fabricated as a wrought wire product, is registered by the Aluminum Association as Alloy 4010 and can be spooled for GMAW. Alloy 4008 is a tightly controlled chemistry version of A356.0 (4010). It is a product generally fabricated to meet the requirements of AMS 4181 specification.
4184
Filler Metal, Aluminum Brazing — Alloy 4145
Alloy 4145 was originally developed as a brazing alloy because of its low melting temperature and high fluidity. It provides very low susceptibility to weld cracking when used with 2XXX series alloys or, aluminum-copper, or aluminum-copper-silicon castings. It can be used in elevated temperature service applications. The alloy is often preferred over 2319 when MIG welding because it “wets” out better, provides a brighter looking weld, and produces less smut. It does, however, have lower weld tensile strengths than 2319, and it is not suited for welding high magnesium containing alloys.
4185
Filler Metal, Aluminum Brazing — Alloy 4047
Alloy 4047 was originally developed as a brazing alloy (BAlSi-4) or (718) to take advantage of its low melting point and narrow freezing range. The principle alloying element is silicon. In addition, it has a higher silicon content than 4043, which provides for increased fluidity and reduced shrinkage. The alloy produces bright and almost smut free welds. Hot cracking is significantly reduced when 4047 is used as a filler alloy. The alloy may be used in applications of sustained elevated temperatures. The alloy is non-heat treatable.
4189
Aluminum Alloy, Welding Wire — Alloy 4643
A primary use for Alloy 4643 is in the welding of heavy sections of certain aluminum alloys when multiple weld passes are used and dilution of the base metal into the puddle is negligible. Post weld solution heat treatment and artificial aging may develop 90% of the tensile strength of the unwelded base metal in Alloys 6061, 6063, 6070, and 6071. This alloy could also offer advantages in brazing type applications on this sections where dilution ratios are low. Welds made with Alloy 4043 or 4643 filler metal should have approximately equal performance in the as-welded condition. Alloy 4643 is very similar in weldability to 4043. The weld cracking characteristics, flow, pre-cleaning and machine settings are the same for this alloy as for 4043. The corrosion resistance is very good and equals or exceeds alloy 4043 in the weld zone and heat affected regions. The principle alloying elements are silicon and magnesium.
4190
Aluminum Alloy, Welding Wire — Alloy 4043
Alloy 4043 is one of the oldest and most widely used welding and brazing alloys. Almigweld and Altigweld 4043 can be classed as a general purpose type filler alloy. Its principle alloying element is silicon. The silicon additions result in improved fluidity (wetting action) to make the alloy a preferred choice by welders. The alloy is less sensitive to weld cracking and produces brighter, almost smut free welds. The alloy is non-heat treatable.
4191
Aluminum Alloy, Welding Wire — Alloy 2319
Alloy 2319 was developed as a filler alloy for Alloy 2219 that is widely used in high strength structural and aircraft applications where superior resistance to stress corrosion cracking and high elevated temperature properties are desired. The alloy is heat treatable and provides higher strength and better ductility than the 4XXX filler alloys when welding 2XXX alloys. Its principle alloying elements are copper, manganese, vanadium, zirconium, and titanium.
4245
Aluminum Alloy, Welding Wire — Alloy 355
Alloys 355.0, A355.0, and C355.0 (Al-Si-Cu-Mg) are alloyed with copper to afford a greater response to heat treatment (higher strength) but inversely sacrifices ductility and corrosion resistance. Alloy C355.0 contains a low amount of iron to create higher tensile properties in premium quality castings. This filler wire is designed for joining and repairing 355.0, A355.0, and C355.0 castings and is available in both spooled and straight length form. Alloy A355.0 when fabricated as a wrought wire product, is registered by the Aluminum Association as Alloy 4009.
4246
Aluminum Alloy, Welding Wire — Alloy 357
Alloy 357.0 (Al-Si-Mg-B.) was designed to produce a tensile strength greater than that normally found using Alloy A356.0. The higher properties, when compared in the -T6 temper, are a result of the chemistry differences. Specifically Alloy 357.0 has an average magnesium content of 0.5%. These premium castings are typically marketed for aerospace applications. Alloy 357.0 has a maximum beryllium content of 0.0008%.