Type
Solid stainless steel austenitic filler metal with excelent corrosion resistance for Tig welding
classification
AWS
A 5.9: ER385
EN ISO
14343-A: W 20 25 5 Cu L
W.Nr.
1.4539
Applications

Tanks and process vessels, Piping systems, agitators, rotors, cast pumps and valves for use in the fertilizer, phosphoric,sulphuric and acetic acid plants

Type
Solid stainless steel austenitic filler metal with excelent corrosion resistance for Tig welding
Applications

Tanks and process vessels, Piping systems, agitators, rotors, cast pumps and valves for use in the fertilizer, phosphoric,sulphuric and acetic acid plants

Properties

The Ceweld 904L is used for welding materials of similar chemical composition which are used for fabrication of equipment and vessels for handling of sulfuric acid and many chloride containing media. This filler metal may also find applications for joining Type 317L material where improved corrosion resistance in specific media is needed. In order to reduce the propensity for fissuring and hot cracking, the low melting constituents such as carbon, silicon, and phosphorus are controlled to lower levels in this alloy.

Classification
AWS
A 5.9: ER385
EN ISO
14343-A: W 20 25 5 Cu L
F-nr
6
FM
5
W.Nr.
1.4539
Suitable for

1.4465, 1.4500, 1.4505, 1.4506, 1.4519, 1.4531, 1.4536, 1.4537, 1.4538, 1.4539, 1.4573, 1.4585, 1.4586, 1.4539, 1.4537, 1.4519, 1.4505

X1CrNiMoN25-25-2, X1NiCrMoCu 25-20-5, X1CrNiMoCuN 25-25-5, X2NiCrMoCuN25-20-5, X2NiCrMoCuN20-18, X4NiCrMoCuNb 20-18-2, X5NiCrMoCuTi20-18, X5NiCrMoCuNb22-18

ASTM A182,

UNS N08904, S31726

Uranus B6, 904L, Z2NCDU25-20, 

Approvals
CE
Welding positions
PA
PB
PC
PD
PE
PF
PG
Redrying
Not required
Gas acc. EN ISO 14175
I1
Analysis
C Si Mn P S Cr Ni Mo Nb N W Cu
0.019 0.35 2 0.01 0.01 20 25 4.5 1.6
Mechanical Properties
Heat
Treatment
RP0,2
(MPa)
Rm
(MPa)
A5
(%)
Impact Energy (J) ISO-V Hardness
RT
As Welded 410 600 35 120 HRc