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Aluminium Welding Alloy 4145
Technical Data Sheet
| Chemical Composition Limits | ||||||||||
| Weight% | Al | Si | Cu | Fe | Zn | Cr | Mn | Mg | Others | Others |
| Alloy 4145 | Bal | 9.3-10.7 | 3.3-4.7 | 0.80 max | 0.20 max | 0.15 max | 0.15 max | 0.15 max | 0.05 max each | 0.15 max each |
Alloy 4145 was originally developed as a brazing alloy due to its low melting temperature and high fluidity. Alloy 4145 provides very low susceptibility to weld cracking when used with 2xxx series alloys or Aluminium-Copper or Aluminium-Copper-Silicon castings. Alloy 4145 is often preferred over Alloy 2319 when MIG Welding as it "Wets" out better and has a brighter looking weld, however Alloy 4145 does have a lower weld tensile strength than Alloy 2319.
| Used on | Joining grades 201, 206, 224, 314, 330, 354, 355 to 6005, 6061, 6063, 6101, 6151, 6201, 6351, 6009, 6010, 6070. C355 A356, 357, 413, to 201, 206, 224, 319, 330, 354, 355, C355. LM4, LM16, LM20, LM25, LM99 to 6000 series as above and cast alloy combinations as shown. 2014, 2024. |
| Cross-Reference of Specifications | ALCUBRAZE MSRR 9500/35 716 AL B AISI-3 AMS 4184D Filler Metal, Aluminium Brazing ALLOY 4145 UNS A 94145 FS-BAISi-3 AL-1 FED-QQ-B-655, Class FS-BAl Si-3 |
| Availability | Ex stock MIG spools and TIG rods For all stock availability contact Sales. |
Weld Properties | Melting range 968° - 1085°F, Density 2.74gm/cc |
