StarBlaze Prime 308
AWS A5.4: E308-16 | DIN EN ISO 3581-A: E 19 9 R 12 | DIN EN 1600: E 19 9 R 12 | Werkstoff Nr: 1.4316 P
Crack-Resistant, Low Spatter, High-Temperature Stability
Rutile-coated stainless steel electrode with ~5% ferrite content for welding non-stabilised 18/8 austenitic steels. Offers excellent resistance to cracking, corrosion, and scaling up to 800°C. Produces spatter-free fusion, smooth bead appearance, and easy slag removal – ideal for boilers, piping systems, and reactors.
Available Packs
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- Dimensions: 2.50 mm x 350 mm, 3.15 mm x 450 mm ,4.00 mm x 450 mm
- Pack Sizes: 2.5 Kg Pouch, 5 Kg Box
- Master Box: 20 Kg, 30 Kg, 40 Kg, Customisable packaging available on request
Key Features
- Stable arc, low spatter, and excellent bead appearance
- Cracking and oxidation resistant up to 800°C
- Ferritic balance improves hot crack resistance
- Charpy impact value: 60 J | Elongation: 39%
- Tensile strength: 610 N/mm²
- Compatible base materials: SS 304, 321, 347 (UNS S30400, S32100, S34700)
Industries
- Heat exchanger and piping systems
- Boilers and steam lines
- Reactor and pressure vessel fabrication
- Turbines and thermal plant infrastructure
- General 18/8 stainless steel construction and repair
Processes
- Manual Metal Arc Welding (MMA / SMAW)
- AC/DC welding
- Fabrication of non-stabilised austenitic stainless steels
- Overlay and joining of 18/8 stainless steels
- Multi-pass joint welding
- Thermal equipment and process piping
- Structural repair in corrosive environments
Additional Details
- Use case: Welding unstabilised 18/8 austenitic stainless steels in thermal and corrosive environments
- Handling: Redry at 250–300°C for 1 hour if moisture exposure is suspected
- Storage: Keep sealed or store in a heated electrode drying cabinet
- Limitations: Avoid using on stabilised grades (e.g. 321, 347) without matching filler; unsuitable for carbon steels
Product Details
Typical Weld Metal Chemical Composition (%)
| C | Si | Mn | Cr | Ni | S | P |
| 0.05 | 0.80 | 0.80 | 19.40 | 9.50 | 0.015 | 0.020 |
Typical Mechanical Properties (All Weld Metal)
| Tensile Strength Rm (N/mm2) | Elongation A5 (%) | Charpy Impact Value (ISO-V J RT) |
| 610 | 39 | 60 |
Recommended Welding Parameters
| Diameter (mm) | Amperage Range (A) |
| 2.50 | 50-80 |
| 3.15 | 80-110 |
| 3.20 | 80-110 |
| 4.00 | 120-150 |
| 4.80/5.00 | 150-180 |
