StarBlaze Prime 410-15
AWS A5.4: E410-15 | DIN EN ISO 3581-A: E 13 B 22
Basic Coated | Martensitic | Air Hardening Chrome Steel
StarBlaze Prime 410-15 is a heavy-coated, low hydrogen MMA electrode formulated for welding 11–13.5% Cr ferritic-martensitic stainless steels such as AISI 410. The deposit is air-hardening, necessitating post-weld heat treatment and stress-relieving to ensure sufficient ductility and reduce hardness for further mechanical processing. Designed for high-temperature and corrosion-resistant service in thermal and pressure equipment.
- Available Packs
- Dimensions: 2.50 mm x 350 mm, 3.15 mm x 450 mm,4.00 mm x 450 mm, 5.00 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
- Air hardening weld deposit with high Cr content (12%)
- Suitable for AISI 410 and similar martensitic steels
- Typical tensile strength >520 N/mm², elongation ≥22%\
- As-welded hardness: 300–370 BHN; softened after SR: 170–220 BHN
- Requires PWHT at 760°C × 1hr for ductility and machinability
- Low hydrogen coating reduces cracking risk
Industries
- Pressure vessels and steam turbines
- Petrochemical equipment
- Valve and pump components
- Power generation and refinery systems
Processes
- Manual Metal Arc Welding (MMA / SMAW)
- Polarity: DCEN (preferred) or AC
- Current range:
- 2.50 mm: 60–90 A
- 3.15 mm: 90–140 A
- 4.00 mm: 140–180 A
- 5.00 mm: 190–240 A
- Welding positions: 1G/PA, 2F/PB, 2G/PC, 3G/PF, 4G/PE
Additional Details
- Preheat recommended for thicker sections
- Re-dry at 280–300°C for 1 hour, max 3 cycles
- PWHT (Post Weld Heat Treatment) is essential for critical applications
- Ensure controlled cooling to reduce residual stress and distortion
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 |
| 4.00 | 140-180 |
| 5.00 | 190-240 |
