HFM 818S
Basic coated electrode for creep resisting steels
Description & applications
Low hydrogen basic coated electrode with Cr and Mo alloyed for welding creep resisting steels (0.5% Cr-0.5% Mo).
For piping systems, boilers, used in service up to 500°C.
Steels and pipes for boilers and pressure vessels:
NF A 36-206: 15D3 - 18MD4.05 - 15CD2.05
DIN 17155: 20 Cr Mo 2 - 20 Mo Cr 4 - 15 Cr Mo 3
BS 1501: Gr 261
Nuance Vallourec: Chromesco 1
Classification
| AWS A5.5 | ISO 3580 | EN 1599 |
|---|---|---|
| E 8018-B1 | E 0,5 Cr Mo B 20 | E Cr Mo 0,5 B 42 |
Typical weld metal composition (%)
| C | Si | Mn | Cr | Mo | S | P |
|---|---|---|---|---|---|---|
| <0.12 | 0.4 | 0.8 | 0.5 | 0.5 | <0.025 | <0.025 |
All weld metal mechanical properties
| Rm (MPa) | Rp0.2 MPa | A5 (%) | Av - ISO - V |
|---|---|---|---|
| >550 | >460 | >19 | +20°C >160 |
Packaging data
| Dimension | 2.5x350 | 3.2x350 | 4.0x450 | 5.0x450 |
|---|---|---|---|---|
| Electr. / packet | 244 | 143 | 96 | 64 |
| Electr. / carton | 976 | 572 | 384 | 256 |
| Kg 1000 electr. | 20.5 | 35 | 68 | 102 |
| Packets / carton | 4 | 4 | 4 | 4 |
| Kg / packet | 5 | 5 | 6.5 | 6.5 |
| Kg / carton | 20 | 20 | 26 | 26 |
Amperes
| A | 80 | 115 | 150 | 190 |
|---|