CEWELD


2594 (Super Duplex) GMAW-GTAW Solid wires




2594 (Super Duplex)

 
TYPE 
Mag filler metal for welding the so called Super Duplex types of stainless steels.
APPLICATIONS 
Welding austenitic-ferritic, stainless alloys of the 25% Cr, 7% Ni, 4% Mo, low C types. Welding wrought, forged or cast super duplex stainless steels for service in the as-welded Condition. Heterogeneous welding between super duplex stainless steels and dissimilar welds between other stainless and mild or low alloyed steels. The alloy is widely used in applications in which corrosion resistance is of the utmost importance. The pulp & paper industry, offshore and gas industry are areas of interest.
PROPERTIES 

2594 has high intergranular-corrosion, pitting and stress-corrosion resistance with exceptinal mechanical strenght properties.

CLASSIFICATION
AWS 
A 5.9: ER 25 9 4
EN ISO 
14343-A: G 25 9 4 N L
DIN: W.Nr. 
1.4410
DIN 
8556: SG X2CrNiMo 25 9 4
SUITABLE FOR 

UNS S32550 :UR 52 N, Ferralium 255, UNS S32520 :UR 52 N+, UNS S32750 :SAF 2507, UR 47 N+, UNS S32760 :ZERON 100, UNS 32760, UR 76 N, SM22Cr, SAF 2507, ASTM S32760 (ZERON 100), S32550 and S31260.,
It can also be used for welding duplex type 2205, 1.4460, 1.4462,1.4463,1.4515, 1.4517, 1.4507 URANUS 52N, SAF 25.07, GX 3 CrNiMoCuN 26-6-3, (1.4515), GX 3 CrNiMoCuN 26-6-3-3, (1.4517), 25% Cr Super Duplex steels SAF 25/07, S32750 1.4410 - 25Cr-7Ni-4Mo-0.28N SAF2507, NAS74N, S32760 1.4501 - 25Cr-7Ni-3.8Mo-0.7Cu-0.7W-0.25N, S32506 - SUS329J4L 25Cr-7Ni-3Mo-0.15N-0.2W NAS64 1.4507, S31803, S32205,

APPROVALS 
CE approved
WELDING POSITIONS: 
TYPICAL ALL WELD METAL ANALYSIS

C

Mn

Si

Cr

Ni

Mo

W

N

   

0.025

1,2

0,6

25

9

3.7

0,4

0,2

   

FNW: Ferrite Number (FN) by WRC1992 Diagram, >40

MECHANICAL PROPERTIES

Heat

RP0,2

Rm

A5

Impact Energy (J) ISO-V

Hardness

Treatment

(N/mm2)

(N/mm2)

(%)

-20°C

-40°C

-60°C

HRc / HV

AW

700

900

27

65

55

   
AW: as welded
REDRYING TEMPERATURE 
not required
WELDING PARAMETERS / PACKING

Welding Parameters

Packing

D (mm)

Voltage (V)

Current DC+ (A)

spool type

kg spool

kg / pallet

0,8

12-24

55-160

S-300

15

1080

1,0

15-28

80-240

S-300

15

1080

1,2

15-29

100-290

S-300

15

1080

GAS ACC. EN ISO 14175:
M12, M13







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