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Stainless steels

FERVEO INX 347Si MIG

solid wireCatalogue only
also as: TIG rod
AWS class
ER 347 Si
EN ISO class
G/W 19 9 Nb Si
Tensile strength (Rm)
680 MPa
Service temperature
−110 … 400 °C

Classification

AWS classER 347 Si
EN ISO classG/W 19 9 Nb Si
Material no. (W.-Nr.)1.4551
Other standardsISO 20172: Gruppe 8.1 · TÜV Kennblatt 1000: Gruppe 29

Purpose

  • Stabilized Cr-Ni-Nb solid wire (19.5/9.5), for joining and surfacing corrosion-resistant stainless steel, from -110°C to +400°C.

Why it works

The wire version of the 347 family — same niobium-stabilizing role as the electrode, on the same DIN 1.4301/1.4303/1.4306/1.4310/1.4312/1.4319/1.4541/1.4550/1.4552 steels (AISI 304/321/347).

Fields of application

  • DIN 1.4301, 1.4303, 1.4306, 1.4310, 1.4312, 1.4319, 1.4541, 1.4550, 1.4552 (AISI 304/321/347).

Chemical composition

ElementTypical, %
C0.06
Cr19.5
Mn1.3
Nb12×C
Ni9.5
Si0.85

Mechanical properties

Tensile strength (Rm)680 MPa
Yield strength (Rp0.2)490 MPa
Elongation (A5)32 %
Impact energy (KV)80 J
Service temperature−110 … 400 °C

Process

PolarityDC+
Shielding gasM12,M13

Sizes and part numbers

ØRequest
0.8 mm
1 mm
1.2 mm
1.6 mm

Supply programme

spools C300 / D100 / D200 / K200 / K300

Cross-reference

Replaces SAS 2-IG (Si) (Böhler)Direct replacement
Replaces THERMANIT H Si (Böhler)Direct replacement
Replaces OK Autrod 347Si (ESAB)Direct replacement
Replaces LNM 347Si (Lincoln)Direct replacement
Replaces NIC 347 (Nicrotec)Direct replacement
Replaces INERTFIL 347Si (Oerlikon)Direct replacement

Equivalence refers to the classification (AWS / EN ISO), not to product identity. In applications with a qualified procedure (WPS), validate the substitution before use.

Base metals

1.43011.43031.43061.43101.43121.43191.45411.45501.4552

Advantages

  • Service -110°C to +400°C.
  • Weldable on MIG/MAG and TIG.

Limitations

Notes