HFM 15 S
Basic electrode for creep-resistant steels
Product description
Low-hydrogen chromium-molybdenum basic electrode designed for welding creep-resistant steels (1% Cr – 0.5% Mo). Excellent resistance to temperatures around 500°C to 550°C. Superheaters, piping, boilers. Smooth melting, easy slag removal, attractive bead appearance.
Main sectors of use: petrochemicals, chemicals.
Product application instructions
| Steels and tubes for boilers and pressure vessels: |
EN: 15Cr3 – 16 MnCr 5 – 20 MnCr 5 – 24 CrMo 5 – 15 CrMo 5 – 13 CrMo 4 4 – 22 CrMo 4 4 – GS 17 CrMo 5 5 5
Werkstoff N° : 1.7015 – 1.7131 – 1.7147 – 1.7223 – 1.7225 – 1.7258 – 1.7262 – 1.7335 – 1.7337 – 1.7350 – 1.7357
ASTM: A335 Gr.P12 – A387 Gr.12Cl2 – A193 Gr B7 – A182 Gr F11 A336 Gr F12 – A217 Gr WC6
Classification
| NFA 81-345 | AWS A 5.5 | BS 2493 | EN ISO 3580 | DIN 8575 |
|---|---|---|---|---|
| E C1 Cr Mo B 120 20 BH | E 8018-B2 | 1 Cr Mo BH | E 1 Cr Mo B 20 | E Cr Mo 1 B 20 + |
Chemical analysis (%)
| C | Mn | If | S | P | Cr | Mo |
|---|---|---|---|---|---|---|
| <0.12 | 0.8 | 0.4 | <0.025 | <0.025 | 1.1 | 0.5 |
Mechanical characteristics
| Rm (MPa) | Rp0.2 (MPa) | A5 (%) | Av - ISO - V |
|---|---|---|---|
| >550 | >460 | >19 | + 20°C >120 |
Why choose this basic electrode?
Vacuum-packed 5 or 6Kg electrode for welding highly stressed steel assemblies (carbon and carbon manganese) (tensile strength up to 510 MPa).
It features excellent mechanical properties, particularly at low temperatures.
