ABRATIG 316LSi

ABRATIG 316LSi

TIG filler metal 316LSi

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Product description

TIG wire for welding austenitic Cr Ni Mo stainless steels. Improved wetting due to high silicon content. Very low carbon content ensures good resistance to intergranular corrosion.

Assembly of stainless steels with 16 – 21% Cr, 10 – 15% Ni and 0 – 3% Mo, stabilized or not. Service temperature: max. 400°C.

Product application instructions

ALLOY UNS DIN W-Nr.
316L S31603 X2 CrNiMo 17 13 2 14404
317L S31703 X2 CrNiMo 18 16 4 14435
316 S31600 X5 CrNiMo 17 12 2 14401
317 S31700 X5 CrNiMo 17 13 3 14436
316Ti S31635 X6 CrNiMoTi 17 12 2 14571
316Ti S31635 X10 CrNiMoTi 18 12 14573
318 S31640 X10 CrNiMoNb 18 12 14583
318 S31640 X5 CrNiMo 17 13 17779
318 S31640 G-X5 CrNiMoNb 18 10 14581

  • Stainless steel piping and boiler making (food, pharmaceuticals, chemicals),

  • Food industry (tanks, silos, mixers),

  • Marine and coastal equipment,

  • Stainless steel heating and sanitary appliances,

  • Cryogenic tanks or heat exchangers.

Wear resistance

Corrosion

Classification

AWS A5.9 DIN. 8556 EN ISO 14343-A Werkstoff Nr.
ER316LSi SGX2CrNiMo 19 12 19 12 3 L 1.4430

Typical weld metal composition (%)

C Si Mn Cr Ni Mo P S
0.018 0.85 1.7 18.5 12.2 2.7 < 0,025 < 0,015

All weld metal mechanical properties

Rm (MPa) Rp0.2 (MPa) A5 (%) Av - ISO - V
620 450 33 50 J: -196°C

Why choose ABRATIG 316LSi filler metal?

ABRATIG 316LSi is one of the most widely used filler metals for welding stainless steels, and is particularly appreciated for its versatility, corrosion resistance and the aesthetic quality of its welds.

Here’s why we choose it:

  1. Excellent corrosion resistance

316L is an austenitic stainless steel containing molybdenum, which greatly improves its resistance to :

  • corrosion in chlorinated environments (seawater, salty steam, etc.),
  • pitting and crevice corrosion,
  • weak to moderate acids.

The “L” stands for “Low Carbon”, so :

  • very low carbon content → reduced risk of intergranular corrosion after welding (no need for post-weld heat treatment in most cases).
  1. Silicon (Si) for improved solderability

Si (Silicon) improves :

  • the fluidity of the melt,
  • the wettability of the cord,
  • weld aesthetics (more regular beads, fewer inclusions),
  • metal flow during welding, particularly useful for TIG welding.
  1. Good mechanical strength and excellent ductility

Even at low temperatures, 316LSi retains good toughness. It is often used in :

  • cryogenic structures,
  • environments subject to vibration or fatigue.
  1. Excellent TIG weldability
  • Few splashes, clean, smooth cords,
  • Low risk of hot cracking,
  • Ideal for visible or precision welds, even in thin-walled piping.