Abrafil 25.9.4L

Abrafil 25.9.4L

MIG super duplex

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Product description

MIG wires for welding “Super duplex” stainless steels
Also suitable for joining “duplex” steels where optimum corrosion resistance is required. Increased resistance to intergranular, pitting and stress-cracking corrosion.

Product application instructions

ALLOY

UNS

DIN

W.-Nr

2507

S32750

G – X2 CrNiMoN25 7 3

1.4469

–

–

G – X3 CrNiMoN26 6 3

1.4468

329 LN

S31803

X2 CrNiMoN22 5 3

1.4462

–

–

X4 CrNiMoNb25 7

1.4582

–

–

G – X6 CrNiMo24 8 2

1.4463

–

–

G – X8 CrNi26 7

1.4347

100

S32760

X2 CrNiMoCuW25 7 3

–

52 N +

S32550

–

–

  • Offshore platforms, subsea pipelines

  • Desalination plants

  • Aggressive chemical industry (strong acids, chlorides)

  • Water or industrial effluent treatment plants

  • Heat exchangers, pressure vessels

Classification

AWS A5.9 DIN 8556 EN 12072
ER2594 G X2 CrNiMoN 25 10 G 25 94 L / W 25 94 N L

Chemical analysis (%)

C Mn If Cr Ni Mo N
0.02 0.3 0.3 25.0 9.5 4.0 0.25

Mechanical characteristics

Rm (MPa) Rp0.2 (MPa) A (%) Av - ISO - V
850 650 25 80 J : + 20°C

Why choose ABRAFIL 25 9 4L?

1. High resistance to corrosion, especially in harsh environments

  • Excellent resistance to pitting and crevice corrosion.

  • Exceptional resistance to stress corrosion cracking (SCC), even in the presence of chlorides.

  • Ideal for marine, offshore, petrochemical and desalination environments.

2. High mechanical strength

  • Superduplex combines an austenitic-ferritic structure: this gives it much greater mechanical strength than conventional austenitic stainless steels (such as 316L).

  • This makes it possible to reduce the thickness of material used for the same strength, thus cutting weight and material costs.

3. Excellent hot and cold resistance

  • Good performance over a wide temperature range.

  • Resists thermal and mechanical fatigue.

4. Good weldability (with precautions)

  • ABRAFIL 25.9.4L is designed to preserve the ferrite/austenite phase balance.

  • It limits the formation of undesirable intermetallic phases if thermal control is well managed (recommendation of fine passes, controlled cooling, etc.).