Stainless steels
FERVEO INX 347 R
covered electrode · stick electrodeCatalogue only
also as: covered electrode · stick electrode
AWS class
E 347-16
EN ISO class
E 19 9 Nb R 32
Tensile strength (Rm)
570–740 MPa
Classification
| AWS class | E 347-16 |
|---|---|
| EN ISO class | E 19 9 Nb R 32 |
Purpose
- Niobium-stabilized Cr-Ni 19.8/10 rutile electrode (E 347-16) — the classic choice for milk and beer tanks and acid/gas/steam/water fittings.
Why it works
Niobium stabilizes the deposit against chromium-carbide precipitation without cutting carbon as low as the "L" family — the result is acid and corrosion resistance to 400°C, in a grade specifically associated with food and beverage equipment.
Fields of application
- Tanks storing milk and beer.
- Acid, gas, steam and water fittings.
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.04 |
| Cr | 19.8 |
| Mn | 0.9 |
| Ni | 10 |
| Si | 0.8 |
Mechanical properties
| Tensile strength (Rm) | 570–740 MPa |
|---|---|
| Yield strength (Rp0.2) | 390 MPa |
| Elongation (A5) | 35 % |
| Impact energy (KV) | 47 J (20 °C) |
Process
| Polarity | DC+/AC |
|---|---|
| Positions | PAflatPBhorizontal-verticalPChorizontalPDhorizontal-overheadPEoverheadPFvertical-up |
| Re-drying | 120–200 °C / ≥2 h |
Sizes and part numbers
| Ø | Length | Current | Request |
|---|---|---|---|
| 2 mm | 250 mm | 40–60 A | |
| 2.5 mm | 250 mm | 50–90 A | |
| 3.2 mm | 300 mm | 80–120 A | |
| 3.2 mm | 350 mm | 80–120 A | |
| 4 mm | 350 mm | 110–160 A |
Cross-reference
| Replaces FOX SAS 2 (Böhler) | Direct replacement |
| Replaces FOX SAS 2-A (Böhler) | Direct replacement |
| Replaces OK 347 (ESAB) | Direct replacement |
| Replaces S-347.16 (Hyundai) | Direct replacement |
| Replaces NC-37 (Kobelco) | Direct replacement |
| Replaces Excalibur 347-16 (Lincoln) | Direct replacement |
| Replaces EI 347 (Magmaweld) | Direct replacement |
| Replaces AS P-347 (Askaynak) | Direct replacement |
| Replaces SUPRANOX RS 347 (Oerlikon) | Direct replacement |
| Replaces SUPRANOX RSL 347 (Oerlikon) | Direct replacement |
| Replaces INOX 347 (Selectarc) | 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
EN: X6CrNiNb 18 10X6CrNiTi 18 10G-X5CrNiNb 18 9X5CrNi 18 10X12CrNiTi 18 9G-X10CrNi 18 8X10CrNiNb 18 10X2CrNi 19 11AISI: 347321304304LN
Advantages
- Niobium-stabilized — resistant to 400°C.
- Acid and corrosion resistant.
- Weldable on DC+ or AC.