Product • rheinweld

Product

Stainless Welding Wire - RW ER307

Used to join high-strength unalloyed and alloyed steels, armor steels, 14% Mn steels, ferritic chromium steels, heat-resistant steels, and aged steels. Also used for fillet welds resistant to fracture, wear and cavitation (turbines, valves).

Code: RW ER307 Stainless • Dissimilar steels

Classıfıcatıon

TS EN ISO 14343-A

G 18 8 MN

AWS

AWS A5.9

ER 307

Shıeldıng gas

TIG: Argon MIG: Ar + 2.5% O₂ MIG: Ar + 2.5% CO₂
View technical data Packaging options

Tip: Use a stable argon-rich shielding gas and follow your WPS for heat input and dilution control on dissimilar joints.

Applıcatıons

Specifications & application fields

RW ER307 is used to join high-strength unalloyed and alloyed steels, armor steels, 14% Mn steels, ferritic chromium steels, heat-resistant steels, and aged steels. It is also used for fillet welds that need resistance to fracture, wear, and cavitation—such as turbines and valves.

Dissimilar steels

Reliable joining

High Mn / armor

Tough deposits

Valves & turbines

Wear / cavitation

Processes: TIG (Ar) and MIG (Ar+2.5% O₂ / Ar+2.5% CO₂).

Notes

Recommended use

Control dilution

Keep heat input consistent for dissimilar joints and buffer layers.

Stable shielding

Argon for TIG; Ar + 2.5% O₂ or Ar + 2.5% CO₂ for MIG.

Hard service parts

Suitable for fillet welds requiring wear/cavitation resistance.

Final suitability depends on WPS, joint design and base metal.

Chemıstry

Chemical properties

Typical wire composition.

Analysıs type C Si Mn Cr Ni
Welding wire 0,034 0,77 6,36 18,16 8,18

Mechanıcs

Mechanical properties

After welding / ISO-V impact (−40°C).

Test type Shıeldıng gas (MIG/TIG) Yıeld strength (MPa) Tensıle strength (MPa) Elongatıon (%) Notch ımpact ISO-V (−40°C)
After welding M12–M13–M14–I1 Min 400 Min 580 Min 30 Min 63 J
Shielding gas (MIG/TIG): M12–M13–M14 / I1 Welding positions: per WPS

Packagıng

Packaging options

Diameters and net weights per piece.

Metal spool • Plastic box
Dıameter (mm) Packagıng type Net weıght (kg)
1,00 Metal spool 15
1,20 Metal spool 15
1,60 Plastic box 5