StarBlaze 7016
AWS A5.1: E 7016 – H4 | DIN EN 499: E 42 4 B 12 H5 | DIN EN ISO 2560-A: E 42 4 B 12 H5
Exceptionally Stable Arc, Ultra Smooth Bead, Superior Reliability
A low-hydrogen potassium coated electrode with a notably stable arc delivering an ultra-smooth finely rippled weld.
- 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
- Basic coated, low-hydrogen electrode.
- Produces tough and crack-free joints.
- Excellent for joint access.
- Good toughness properties down to -40°C.
- Exceptionally stable arc, ideal for root passes and positional welding.
- Reliable welding application for critical welding of C-Mn & low-alloy structural steels.
- Produces smooth finely-rippled weld beads.
Industries
- Structural steelwork.
- Offshore Fabrication & Maintenance.
- Petrochemical Processing Facilities
- Power Generation & Energy Engineering
- Pipeline Manufacture & Welding
Processes
- Manual Metal Arc Welding (MMA / SMAW) for
- Operates on both AC and DC+ polarity
- All-position welding capability.
- Buffer Layer Deposition on Carbon and Low-alloy steels.
- Joining Mild Steel to Cast Steel components.
- Low hydrogen (H5) content for welding critical structures reducing risk of cold cracking.
Additional Details
- Suitable for welding carbon steels, cast steels, and buffer layers on alloy steels
- Crack-resistant welds in restraint-sensitive joints
- Excellent for multipass welding with clean slag removal
- Re-dry electrodes at 300–350°C for 2 hours, up to 3 times
- Not recommended for short arc conditions or excessive weaving
Product Details
Typical Chemical Composition (%)
| C | Si | Mn | P | S |
| 0.07 | 0.40 | 1.20 | 0.025 | 0.020 |
Typical Mechanical Properties (All Weld Metals)
| Heat Treatment | Tensile Strength
Rm (N/mm2) |
Yield Strength
Rp (N/mm2) |
Elongation
A5 (%) |
Charpy Impact Value
(ISO-V J -30°C) |
| As Welded | 520-620 | ≥ 420 | 30 | 80 |
Recommended Welding Parameters
| Diameter (mm) | Amperage Range (A) |
| 2.50 | 50-80 |
| 3.15/3.20 | 90-130 |
| 4.00 | 130-170 |
| 5.00 | 180-220 |
