StarBlaze Prime 309H
AWS A5.4: E309H-16 | DIN EN ISO 3581-A: E 23 12 R 12 | DIN EN 1600: E 23 12 R 12 | Werkstoff Nr: 1.4833
12% Ferrite, High Temp Durable, Excellent Cladding and Joint Finish
Rutile-basic electrode with 12% ferrite stainless deposit, designed for welding dissimilar metals and elevated temperature service. Suitable for buffer layers, 18/8 cladding, and joining stainless to low alloyed steels. Offers spatter-free arc, smooth bead finish, and reliable restrike for critical repair and structural jobs.
- Available Packs
- 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
- Enhanced ferrite level (12%) for heat and corrosion resistance
- Produces smooth welds with low spatter and self-lifting slag
- High strength stainless weld deposit for cladding and overlays
- Tensile strength: 600 N/mm² | Elongation: 36%
- Charpy impact value: 60 J
- Compatible base materials: 309, 304LN, 3098; UGINOX R20-12, R24-13S, X10CrA1 18
Industries
- High-temperature process piping
- Petrochemical and power plants
- Structural welding for thermal systems
- Cladding and transition weld layers
- Civil engineering stainless repair and overlays
Processes
- Manual Metal Arc Welding (MMA / SMAW)
- DC+ polarity welding
- Cladding base and buffer layer deposition
- Stainless to low alloy dissimilar joints
- Multi-pass welds on high-temp assemblies
- Vertical-up and overhead stainless welding
- Interpass controlled repair jobs in stainless components
Additional Details
- Use case: High-temperature service welding for dissimilar joints and stainless overlays in thermal plant systems
- Handling: Redry at 300–350°C for 1 hour before use if exposed to moisture or open air
- Storage: Store in dry ovens or vacuum-sealed containers to avoid hydrogen pickup
- Limitations: Not intended for cryogenic service or corrosion-resistant surfacing in chloride-rich environments
Product Details
Typical Weld Metal Chemical Composition (%)
| C | Si | Mn | Cr | Ni | S | P |
| 0.050 | 0.80 | 0.80 | 24.00 | 12.50 | 0.012 | 0.025 |
Typical Mechanical Properties (All Weld Metal)
| Tensile Strength
Rm (N/mm2) |
Elongation
A5 (%) |
Charpy Impact Value
(ISO-V J RT) |
| 600 | 36 | 60 |
Recommended Welding Parameters
| Diameter (mm) | Amperage Range (A) |
| 2.50 | 60-90 |
| 3.15 | 80-120 |
| 4.00 | 110-150 |
| 5.00 | 150-180 |
