4043 Aluminium Alloy Welding Wire

4043 Aluminium Alloy Welding Wire

Alloy 4043 is one of the oldest and most widely used welding and brazing alloys. AL4043 can be classed as a general purpose type filler alloy. Due to the addition to silicon alloy 4043 results in improved fluidity (wetting action) to make alloy 4043 the preferred choice by welders. Alloy 4043 is...

Product Details

Chemical Composition Limits

Weight%

Al

Si

Fe

Cu

Ti

Zn

Mn

Mg

Others

Others

Alloy 4043

Bal

4.5-6.0

0.60 max

0.30 max

0.15 max

0.10 max

0.15 max

0.20 max

0.05 max each

0.15 max total

Alloy 4043 is one of the oldest and most widely used welding and brazing alloys. AL4043 can be classed as a general purpose type filler alloy. Due to the addition to silicon alloy 4043 results in improved fluidity (wetting action) to make alloy 4043 the preferred choice by welders. Alloy 4043 is less sensitive to weld cracking and brighter and almost smut free welds.

Aluminium MIG and TIG Welding wire and Rods

Used on

1xxx, 3xxx, 6xxx series alloys. 
2014, 2219, 5005, 5050, 5052, 7005, 7039, N21. 
Al-Si, Al-Si-Mg casting alloys and combinations of above materials. 
Al - Lithium alloys. 
DTD372B, LM4, LM2, LM6, LM9, LM20, LM25, LM2 .

Cross-Reference of Specifications

MSRR 9500/32
AMS 4190D Aluminium Alloy, Welding Wire 
N21 (NG21)
MSRR 8065
UNS A 9 4043 
OMAT 310A 
Fed-QQ-R-556 Class 4043 
Alloy 4043 A (BS 2901 PT4) 
ER4043, R4043 (AWS A5.10.92)

Availability Ex stock MIG spools and TIG rods

Spools 0.5kg, 2.5kg and 15kg European manufacture
Spools 1 lb, 5 lb and 25 lb American manufacture
Rods 1 kg, 2.5kg, 5kg and 10kg packs European manuf.
1000mm lengths, Flag tagged for traceability 
Rods 5 lb American manufacture
Flag tagged for traceability 
For all stock availability contact Sales.


Weld Properties

Melting range 573°- 625°C 
Density 2.68gm/cc 
ALLOY 4043 is an Al-5% Si alloy, non-heat treatable. 
ALLOY 4043 has a lower melting range than the base metals for which it is commonly used and relieves contraction during weld cooling. 


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