

Classification:

EN ISO 14343

AWS A5.9

G 25 9 4 N L

ER2594

Description:

Cromamig 2507 deposits a 25%Cr/10%Ni/4%Mo/0.25% N super duplex type weld metal with a ferrite

level of approximately FN 55. It is designed for welding similar composition steels e.g. SAF 2507,

Uranus 52N, Zeron 100, which offer even higher strength and corrosion resistance levels than the

ordinary duplex grades. Cromamig 2507 may also be used for welding standard duplex steels when

higher corrosion resistance in the weld metal is required. A heat input range of 0.4-1.5 KJ/mm is

recommended to maintain a favourable phase balance in the weld metal and avoid deleterious

precipitation effects in the plate. Applications include offshore platform pipework for seawater cooling

systems and firefighting water, as well as pumps, valves and risers. The weld metal has excellent

fracture toughness at temperatures down to –40°C.

Welding current:

DC+

Mechanical properties

Shielding gas:

M11, Ar + 1-3% O2, 16-21 l/min

Yield strength, Rp0.2%:

Tensile Strength, Rm:

Elongation, A5

Impact energy, CV:

Typical

Wire composition, wt.%





























640 MPa

850 MPa

25%

20°C • 135 J

–40°C • 60 J

Ferrite content:

FN 55

Corrosion resistance

Very good resistance to pitting corrosion and

stress corrosion cracking in chloride and H2S

environments. Good resistance to intergranular

corrosion. Pitting resistance equivalent, PRE = 42.

Critical pitting temperature CPT = 40°C (ASTM

G48).

Scaling temperature:

Approx. 850°C in air.

Product data:

Diam. Product code

mm

0,8

1,0

1,2

98172008

98172010

98172012

Spool weight



15 kg S300

15 kg S300

15 kg S300

60-100

75-140

130-160

162

  

18-21

18-21

18-21

150-170

170-200

175-250

24-26

26-28

26-28