ALFA 308LT-1 is a stainless steel flux cored welding wire designed for all-position welding using CO₂ or Argon + CO₂ mixed shielding gases. It features a fast-freezing slag system, making it suitable for controlled and efficient stainless steel fabrication.
Key Features
- Stainless steel flux cored welding wire
- All-position welding capability
- Fast-freezing slag system
- Suitable for CO₂ shielding
- Suitable for Argon + CO₂ mixed shielding
- Suitable for 304 / 304L / 321 stainless steel
- Suitable for tanks, pipelines and reaction vessels
- Available in 1.2 mm and 1.6 mm
Product Specifications
| Specification | Details |
|---|---|
| Brand | ALFA |
| Product Name | ALFA 308L Stainless Steel Flux Cored Welding Wire |
| Identification | 308L, E308LT-1/4 |
| Classification | AWS/SFA 5.22: E308LT-1/4 |
| Product Type | Stainless Steel Flux Cored Welding Wire |
| Welding Position | All Positions |
| Shielding Gas | 100% CO₂ / 80% Ar + 20% CO₂ |
| Welding Current | DC (+) |
| Wire Diameter | 1.2 mm / 1.6 mm |
| Weight / Spool | 12.5 / 15.0 kg |
| Slag System | Fast Freezing |
Chemical Composition
| Element | Range / Maximum |
|---|---|
| Carbon (C) | 0.04% Max |
| Manganese (Mn) | 0.5–2.5% |
| Silicon (Si) | 1.0% Max |
| Sulphur (S) | 0.030% Max |
| Phosphorus (P) | 0.030% Max |
| Chromium (Cr) | 18.0–21.0% |
| Nickel (Ni) | 9.0–11.0% |
| Molybdenum (Mo) | 0.75% Max |
| Copper (Cu) | 0.75% Max |
Mechanical Properties
| Property | Value |
|---|---|
| UTS | 550 MPa Min |
| Elongation | 30% Min |
| CVN Impact Temperature | -30°C |
| CVN Impact Value | 60 J |
Typical Applications
- 18% Cr / 8% Ni stainless steel welding
- 304 stainless steel
- 304L stainless steel
- 321 stainless steel
- UNS S30400 and S30403 alloys
- Chemical tanks
- Storage tanks
- Pipelines
- Reaction vessels
- General stainless steel fabrication
Shielding Gas
| Shielding Gas | Specification |
|---|---|
| CO₂ | 100% CO₂ |
| Mixed Gas | 80% Argon + 20% CO₂ |
Welding Parameters
| Wire Diameter | Amps DC (+) | Voltage | Weight / Spool |
|---|---|---|---|
| 1.2 mm | 120–240 A | 23–30 V | 12.5 / 15.0 kg |
| 1.6 mm | 160–290 A | 25–32 V | 12.5 / 15.0 kg |















