Classification: ~ESt (AWS/ASME SFA - 5.15)
ESt acts as a first-pass layer on cast irons with low weldability (such as grey cast iron and old castings), forming a bonding interface between the base metal and subsequent filler layers.
Price and availability are provided by quotation. Send an enquiry with quantity and variant.
Product description
ESt acts as a first-pass layer on cast irons with low weldability (such as grey cast iron and old castings), forming a bonding interface between the base metal and subsequent filler layers. It is also used to remove or reduce surface contaminants that may be present on aged or degraded castings. It provides an ideal underlay for second-pass welding with pure nickel or nickel-iron electrodes. Additionally, it is suitable for single-pass wear-resistant surface build-ups. ESt stands out with its excellent weldability and can be easily applied using the stringer bead technique. It ensures high deposition efficiency while operating with low penetration, minimizing the impact on the base material during welding.
Standards and classifications
| AWS/ASME SFA - 5.15 | ~ESt |
| EN ISO 1071 | E C Z Fe-1 |
| TS EN ISO 1071 | E C Z Fe-1 |
Base materials
| DIN |
|---|
| GGG 40.3 - GGG 70 |
| GTS 35-10 - GTS 70-02 |
| GTW 35-04 - GTW S 38-12 |
Typical chemical values of weld metal
| Type of Analysis | C | Si | Mn |
|---|---|---|---|
| Weld Deposit | 1.50 | 1.80 | 1.50 |
Typical mechanical values of weld metal
| Test Condition | Hardness (HB) |
|---|---|
| As welded | 350 |
Welding positions
Polarity
Welding parameters and efficiency
| Diameter x Length (mm) | Current (A) |
|---|---|
| 2.50x300 | 50-70 |
| 3.25x350 | 90-110 |
| 4.00x350 | 110-140 |
Storage and re-drying
- It can be dried maximum 5 times.
- It has to be dried at 150°C for 1 hour.
Documentation
Documents open from the official Magmaweld pages (PDF).