Price include Alloy Surcharge !Description
Stainless MIG Welding Wire for 347 and 321 – High Corrosion Resistance and Stability
This stainless MIG welding wire for 347 and 321 stainless steels is a solid wire electrode designed for GMAW (MIG) welding. It is stabilized with niobium (Nb) or titanium (Ti) and offers superior performance when welding austenitic stainless steel grades such as 347, 321, 304, and 304L.
Due to its stable arc and resistance to intergranular corrosion, this wire is ideal for chemical plants, food processing, and general fabrication involving stainless structures exposed to high temperature or corrosive conditions.
It is supplied in a 15kg vacuum-packed spool, ensuring extended storage life and moisture protection.
Why choose stainless MIG welding wire for 347 and 321?
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Welds stabilized and unstabilized stainless steels (304, 304L, 321, 347)
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High resistance to intergranular corrosion
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Clean weld appearance and smooth arc
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Ideal for general, structural, and high-temperature applications
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Vacuum-packed spool for optimal storage
Applications include:
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Welding piping and tanks made of 347, 321, or 304 stainless
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Food industry equipment
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Heat exchangers and pressure vessels
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Chemical and petrochemical installations
Welding Classifications
| Standard | Classification |
|---|---|
| EN ISO 14343-A | G 19 9 Nb |
| AWS A5.9 / SFA 5.9 | ER347 |
Base Materials (Weldable Grades)
| AISI / ASTM | DIN / EN Designation |
|---|---|
| 347 | 1.4550 / X6CrNiNb18-10 |
| 321 | 1.4541 / X6CrNiTi18-10 |
| 304 / 304L | 1.4301, 1.4306, 1.4311 |
| 302 | 1.4312 |
| CF 8C | ASTM A296 Gr. CF 8 C |
| C9 | A157 Gr. C9 |
| B8C / D | A320 Gr. B8C or D |
Chemical Composition of Wire (%)
| C | Si | Mn | Cr | Ni | Nb+Ta | P | S |
|---|---|---|---|---|---|---|---|
| max 0.08 | ~0.30–0.65 | ~1.0 | ~19 | ~9.5 | 10xC min | max 0.03 | max 0.03 |
(Typical values based on standard ER347 requirements)
Mechanical Properties of Deposited Metal
| Property | Typical Value |
|---|---|
| Yield Strength | ≥ 400 MPa |
| Tensile Strength | ≥ 550 MPa |
| Elongation (A5) | ≥ 30% |
| Impact Toughness | ≥ 47 J at RT |
Welding Details
| Diameter | Package Type | Shielding Gas | Welding Positions |
|---|---|---|---|
| 0.8 – 1.6mm | BS300/15kg vacuum-packed | Argon or Ar+CO₂ | All positions |
Price per 15kg vacuum-packed spool.
Alloy surcharge is included in the final price.
Delivered by RAM SVEIS OG BEMANNING AS, your specialist supplier of stainless MIG welding wire in Norway.
Product Certification
Wire Electrode Surface:
Smooth finish free from surface defects and foreign matter.
Welding Positions:
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