ER347 Stainless Wire
Niobium-stabilized stainless wire for welding 321/347 steel and preventing intergranular attack.
Material overview
The Stainless Steel Welding Consumables catalog describes ER347 Stainless Wire as follows: Niobium-stabilized stainless wire for welding 321/347 steel and preventing intergranular attack. Reviewers should evaluate Columbium/niobium stabilization, resists carbide precipitation, and good high-temperature service. The grade record lists High-temperature stainless, 321 fabrication, and refinery and chemical plant among typical applications. The dataset currently includes 9 property records covering chemical composition and mechanical properties. Standards and form records reference A5.9, A5.4, and GB/T 17854 and Solid Wire / GTAW-GMAW Wire and Covered Electrode. Final supply conditions remain subject to specification, inspection, and export-control review.
Key characteristics
- Columbium/niobium stabilization
- resists carbide precipitation
- good high-temperature service
Typical applications
- High-temperature stainless
- 321 fabrication
- refinery and chemical plant
Grade names and equivalents
Technical properties
Typical values are for reference only. Final chemistry, mechanical properties, heat treatment, dimensions, inspection, and documentation are confirmed against the applicable specification and MTC/COA before order acceptance.
Chemical composition
| Property | Value | Unit | Condition / standard |
|---|---|---|---|
| C | 0.04-0.08 | wt% | Typical value |
| Cr | 19.0-21.5 | wt% | Typical value |
| Ni | 9.0-11.0 | wt% | Typical value |
| Nb | 8xC-1.0 | wt% | Typical value |
| Mn | 1.0-2.5 | wt% | Typical value |
| Si | 0.3-0.65 | wt% | Typical value |
Mechanical properties
| Property | Value | Unit | Condition / standard |
|---|---|---|---|
| Tensile strength | min 590 | MPa | As welded |
| Yield strength 0.2% | min 400 | MPa | As welded |
| Elongation | min 30 | % | As welded |
Standards and specifications
Forms, applications, and capabilities
Product forms
- Product form
- Product form
Industries
- Petrochemical & Chemical
- Industry
Capabilities
- Capability
- Capability
- Nondestructive & Laboratory Testing