Abrafil 318Si

Abrafil 318Si

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Product description

ER318Si according to the AWS standard, this wire is designed for welding type 316Ti austenitic stainless steels, i.e. 18-10-2 steels with titanium added for improved resistance to intergranular corrosion. It is a modified version of 316L for applications where thermal stability is crucial.

Product application instructions

Main applications: Petrochemical industry, marine applications

Classification

ISO 14343-A AWS A5.9 Werkstoff Nr.
G 19 12 3 Nb Si ER318Si 1.4576

Chemical analysis (%)

C If Mn Cr Ni Mo Cu Nb P S Fe
0.02 0.85 1.6 18.5 12.0 2.7 0.1 0.5 <0.02 <0.01 Rem

Mechanical characteristics

Rm (MPa) Rp0.2 (MPa) A5 (%) KV
610 400 35 20°C: 110 J

Why choose ABRAFIL 318Si?

1. Designed for 316Ti stainless steels

  • 316Ti is a titanium-stabilized stainless steel, used to prevent carbide precipitation at high temperatures (a phenomenon that degrades resistance to intergranular corrosion).

  • ABRAFIL 318Si is perfectly compatible with this type of stainless steel, ensuring a metallurgically stable weld even after exposure to prolonged high temperatures.

2. Excellent corrosion resistance

  • Excellent resistance to media :

    • chlorinated

    • mild acids (sulfuric, acetic, phosphoric)

    • saline or industrial environments

  • Suitable for chemical, food, marine and pharmaceutical environments.

3. Presence of silicon = improved solderability

  • Si (~0.8-1.2%) improves :

    • the fluidity of the bath

    • bow stability

    • cord aesthetics

    • edge wettability

  • Perfect for neat, visible or automated welding.

4. Good mechanical and heat resistance

  • Withstands temperatures of up to 400-500°C continuously, thanks to Ti stabilization.

  • Preserves mechanical properties even after prolonged thermal exposure.