

Classification:

AWS A5.22

EN ISO 17633-A

E2594T1-4/-1

N/A

Description:

Cromacore 2507 is a rutile flux cored wire which deposits a 25%Cr/10%Ni/4%Mo/0.25%N super

duplex type weld metal with a ferrite level of approximately FN 50. 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. Cromacore 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 0.5-2.5 KJ/mm is recommended to maintain a favourable phase balance in the weld

metal and avoid deleterious precipitation effects in the plate. The weld metal has excellent fracture

toughness at temperatures down to –40°C.

Applications:

Applications include offshore platform pipework for seawater cooling systems and firefighting water,

as well as pumps, valves and risers.

Welding positions:

Recommended parameter range:



Welding current:

DC+

Deposition efficiency:

87%

Shielding gas:

M21, 80% Ar + 20% CO2, 22-25 l/min.

C1, 100% CO2, 22-25%

Stick-out:

20-25 mm

Mechanical properties

Typical

Yield strength, Rp0.2%:

Tensile Strength, Rm:

Elongation, A5

Impact energy, CV:

701 MPa

906 MPa

27%

20°C • 59 J

–40°C • 39 J

Product data:

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

1,2

1,2

Ferrite content:

FN 48

Approvals:

131

95972012

95972112



12,5kg D300

5kg D200