StarBlaze Prime 410
AWS A5.4: E410-15 | DIN EN ISO 3581-A: E 13 B 22
Low Hydrogen | Ferritic-Martensitic | PWHT Required
StarBlaze Prime 410 is a heavy-coated low hydrogen MMA electrode designed for welding 11–13.5% Cr ferritic martensitic stainless steels (AISI 410). The deposited weld metal is air hardening and requires post-weld heat treatment to achieve suitable ductility and mechanical workability. Delivers stable arc performance and reliable weld bead finish with minimal spatter.
Available Packs:
- 2.50 mm – 60–90 A
- 3.15 mm – 90–140 A
- 3.20 mm – 90–140 A
- 3.25 mm – 90–140 A
- 4.00 mm – 140–180 A
- 5.00 mm – 190–240 A
Supplied in moisture-resistant vacuum packaging
Key Features
- Optimised for AISI 410 steels (X6Cr13, X12Cr13)
- Suitable for components requiring post-weld stress relief
- Yield strength ≥ 250 N/mm², tensile strength ≥ 520 N/mm²
- Elongation ≥ 22% after PWHT
- Hardness: 300–370 BHN (as welded), 170–220 BHN (after stress relief)
- Minimal hydrogen-induced cracking when properly handled
Industries
- Power generation and refinery components
- Valves, pumps, shafts, and turbine parts
- Chemical and processing plants
- Tooling and hardfacing overlays on Cr steels
Processes
- Manual Metal Arc Welding (MMAW/SMAW)
- Polarity: DC+ recommended
- Welding Positions: PA, PB, PC, PF, PE
Additional Details
- PWHT at 760°C for 1 hour is recommended
- Re-dry electrodes at 280–300°C for 1 hour if moisture exposure occurs; max 5 cycles
- Avoid condensation and store in dry, heated environments
- Maintain controlled interpass temperatures to prevent cracking
Product Details
Typical Weld Metal Chemical Composition (%)
| C | Si | Mn | S | P | Cr | Ni |
| 0.07 | 0.20 | 0.50 | 0.010 | 0.020 | 12.00 | 0.50 |
Typical Mechanical Properties (All Weld Metal)
| Heat Treatment | Yield Strength
Rp (N/mm2) |
Tensile Strength
Rm (N/mm2) |
Elongation
A5 (%) |
Hardness
As welded |
Hardness
After S.R. |
| PWHT 760°C x 1h | ≥ 250 | ≥ 520 | ≥ 22 | 300-370 BHN | 170-220 BHN |
Recommended Welding Parameters
| Diameter (mm) | Amperage Range (A) |
| 2.50 | 60-90 |
| 3.15 | 90-140 |
| 3.20 | 90-140 |
| 3.25 | 90-140 |
| 4.00 | 140-160 |
| 5.00 | 190-240 |
