6 ESAB
4043HQ AWS Class:
E4043, ER4043 Code
and Specification Data: ANSI/AWS
A5.10 (ER & R), AMS 4190 Description:
Alloy 4043 is one of the oldest and
most widely used welding and brazing alloys. ESAB 4043 can be
classified as a general purpose type
filler alloy. 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. Typical
Mechanical Properties Base
Alloy Postweld Heat-Treated
Properties
As Welded and
Aged1 UTS
UYS E(%)
UTS UYS
E (%) UTS
UYS E(%)
Base Alloy (ksi)
(ksi) (ksi)
(ksi) (ksi)
(ksi) 2014-T6
70 60
13 34
28 4
50 ---
2 6061-T4
35 21
22 27
18 8
35 ---
82
6061-T6 45
40 12
27 18
8 44
40 5
6063-T4 25
22 22
20 10
12 30
--- 13
(1)Requires
sufficient dilution of base metal into weld pool for heat treat and/or age response.
(2)Postweld
aged only. Chemistry
Si Fe
Cu Mn
Mg Cr
Zn Ti
Be Each
Total Al
4.5-6.0 0.8
0.30 0.05
0.05 ----
0.10 0.20
0.0008 0.05
0.15 REM
Note: Single values are maximum unless
otherwise noted. Welding
Approvals n
Canadian
Welding Bureau
