Domestic Market
ER347/347H stainless steel filler materials are designed for welding stabilised austenitic stainless steels used in high-temperature and corrosive service conditions. These products are suitable for both MIG and TIG welding processes and are commonly applied in pipe, plate, and vessel fabrication. With niobium stabilisation, 347 filler wire offers strong corrosion resistance at service temperatures and delivers reliable weld quality in demanding industrial applications.
Key Features and Benefits of Superon 347/347 H
Superon Technik has developed ER347/347H welding consumables to meet the performance needs of industries where heat resistance and corrosion protection are critical.
- Niobium-stabilised weld metal: Niobium stabilisation prevents carbide precipitation, helping maintain corrosion resistance at elevated service temperatures.
- High resistance to corrosive media: Performs well in aggressive environments where welded joints are exposed to heat and corrosive substances.
- Strong mechanical properties: Provides good yield strength, tensile strength, and elongation for durable and long-lasting weld joints.
- Suitable for high temperature service: Designed for applications where stainless steel components operate under sustained heat conditions.
- Stable arc and smooth metal transfer: Precision layer-wound wire ensures consistent feeding and stable arc performance during MIG welding.
- MIG and TIG welding flexibility: Available as MIG wire and TIG rod, supporting different welding processes based on job requirements.
- Wide application range: Commonly used for welding 321H, 347H, and similar austenitic stainless steel grades.
These advantages make ER347 filler wire and ER347 H filler wire reliable choices for critical stainless steel welding tasks.
Specifications of ER347/347 H
Here are the key mechanical properties and welding conditions for 347 filler wire and TIG rod variants.
| Product Name | AWS SFA Classification | Yield Strength N/mm² | Tensile Strength N/mm2 | Elongation A5 Percent | Impact Energy ISO V J at 20 °C | Welding Conditions |
|---|---|---|---|---|---|---|
| SUPERMIG 347 347H | AWS A5.9 ER 347/ 347H EN ISO 14343 A G 19 9 Nb | ≥ 400 | ≥ 520 | ≥ 30 | ≥ 65 | DC positive |
| SUPERTIG 347 | ER 347 | ≥ 400 | ≥ 520 | ≥ 30 | ≥ 65 | DC negative |
These specifications ensure consistent welding performance in fabrication and pressure equipment applications.
Properties of ER347/347 H
Superon ER347/347 H welding consumables are engineered to deliver dependable performance in high-temperature service environments.
| Property | Description |
|---|---|
| Intergranular Corrosion Resistance | Niobium stabilisation limits carbide formation |
| Mechanical Strength | Strong and ductile weld metal |
| High Temperature Stability | Maintains properties at elevated service temperatures |
| Arc Stability | Smooth and controlled arc during welding |
| Weld Appearance | Uniform bead shape with good surface finish |
| Feeding Performance | Precision layer wound wire ensures steady feeding |
| Process Compatibility | Suitable for MIG and TIG welding processes |
These properties help ensure long-term joint integrity in demanding operating conditions.
Applications of ER347/347 H
347 filler wire and TIG rods are widely used in industries where stainless steel components are exposed to heat and corrosive environments.
Typical applications include:
- Fabrication of stainless steel pipes
- Welding of pressure vessels and storage tanks
- Plate and vessel fabrication for process industries
- Petrochemical and refinery equipment
- Power and energy sector components
- Chemical processing plants
The material is especially suitable for applications where corrosion resistance must be maintained at service temperatures.
Related Products
For complete stainless steel welding solutions, the following products are commonly used alongside ER 347 H filler wire:
- Stainless steel stick electrodes
- TIG filler rods for stabilised grades
- Duplex stainless steel filler wires
- Welding auxiliaries and industrial sprays
- Abrasives for weld finishing and cleaning
These related products support consistent and high-quality welding outcomes.
