StarBlaze Prime 308H
AWS A5.4: E308H-16 | DIN EN ISO 3581-A: E 19 9 R 12 | DIN EN 1600: E 19 9 R 12 | Werkstoff Nr: 1.4948
Low Moisture Pickup, Soft Fusion, High Temperature Strength
Rutile semi-basic stainless steel electrode with ~3–8% ferrite for welding 308H type stainless steels used in high-temperature service. Combines low moisture absorption with smooth bead appearance and spatter-free fusion. Enhanced carbon content improves strength and creep resistance in thermal pipelines and petrochemical units.
Available Packs :
2.50 mm x 350 mm – 2.5 kg pouch
- 3.15 mm x 350 mm – 5 kg box
- 4.00 mm x 450 mm – 5 kg box
- 20 kg master carton
- Custom packaging available on request
Key Features
- Ferrite-balanced rutile coating with low hydrogen pickup
- Excellent slag release, low spatter, and clean fusion
- Tensile strength: 600 N/mm² | Elongation: 37%
- Charpy impact value: 55 J
- Compatible base materials: AISI 304H, 321H, 347H; 1.4948 (X6CrNi18-10), 1.4301 (X10CrNi18-8)
- Designed for elevated-temperature joint durability
Industries
- Petrochemical and nuclear sector welding
- Boiler and thermal vessel fabrication
- Power plant piping and exchangers
- Structural welding for temperature-sensitive applications
- Heat-resistant assembly and maintenance
Processes
- Manual Metal Arc Welding (MMA / SMAW)
- AC/DC compatible welding
- Fabrication of creep-resistant stainless assemblies
- Multi-pass welds for structural stainless
- Overlay and joining of heat-treated austenitic grades
- Controlled interpass welding for thermal service
- Stainless repair work in process equipment
Additional Details
- Use case: Fabrication and repair of austenitic stainless steels in elevated temperature systems
- Handling: Redry at 300–350°C for 1 hour if exposed to moisture or open air
- Storage: Store in heated oven or keep sealed to prevent hydrogen absorption
- Limitations: Avoid use on stabilised grades unless filler compatibility is confirmed; not intended for cryogenic service
Product Details
Typical Weld Metal Chemical Composition (%)
| C | Si | Mn | Cr | Ni | S | P |
| 0.05 | 0.80 | 0.80 | 19.00 | 9.50 | 0.015 | 0.030 |
Typical Mechanical Properties (All Weld Metal)
| Tensile Strength
Rm (N/mm2) |
Elongation
A5 (%) |
Charpy Impact Value
(ISO-V J RT) |
| 600 | 37 | 55 |
Recommended Welding Parameters
| Diameter (mm) | Amperage Range (A) |
| 2.50 | 50-80 |
| 3.15 | 80-110 |
| 4.00 | 120-150 |
| 5.00 | 150-180 |
