StarBlaze Prime 7016
AWS A5.1: E7016 H4 | DIN EN ISO 2560-A: E 42 5 B 12 H5 | EN 499: E 42 5 B 12 H5
Low Hydrogen Control | Smooth Bead Finish | -50 °C Toughness
A basic-coated, low hydrogen electrode ideal for producing strong, crack-resistant joints in C-Mn microlow and low-alloy steels. Delivers stable arc behavior and fine, smooth weld beads even in positional welding. Excellent for root joint welding and high-restraint structures exposed to sub-zero temperatures. Suitable for applications in offshore, petrochemical, and energy sectors.
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, Customisable packaging available on request
- Basic coated, hydrogen-controlled electrode
- Excellent weld toughness down to –50 °C
- Produces smooth, finely rippled welds
- Reliable performance in root joints and confined access areas
- Crack-resistant in restraint-sensitive structural work
- Suitable for radiographic-quality welding
- Offshore Fabrication & Repairs
- Petrochemical Structures
- Power Engineering Infrastructure
- Structural Steel Fabrication
- Bridge & Crane Component Welding
- Manual Metal Arc Welding (MMA / SMAW)
- Operates on both AC and DC+ polarity
- Suitable for all-position welding (1G, 2F, 3G, 4G, 5G)
- Ideal for positional work in structural applications
- Performs reliably in low-temperature environments
- Base materials: S(P)235–S(P)420, GP240–GP280, L245–L360
- Re-drying conditions:
• HD5: 340–360 °C for 1 hour (max 3 cycles)
• HD510: 300–350 °C for 2 hours (max 3 cycles) - Good slag removal and arc stability during multipass work
- Not recommended for short arc or high-speed weaving
- Excellent strike and re-strike characteristics
Product Details
Typical Weld Metal Chemical Composition (%)
| C | Si | Mn | P | S |
| 0.06 | 0.40 | 1.30 | 0.025 | 0.020 |
Typical Mechanical Properties (All Weld Metal)
| Heat Treatment | Tensile strength Rm (N/mm2) | Yield Strength Rp (N/mm2) | Elongation A5 (%) | Charpy Impact Value (ISO-V J -30°C) |
| As Welded | 550-620 | ≥ 420 | 30 | 100 |
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 |
